AudioLab is a set of components for fast audio processing with almost zero lines of code!

Capture
Process
Mix

Record
Analyze
Display

Overview
Components
What's New
Screenshots
FAQ
Downloads
License

What can I build with AudioLab?

With AudioLab you can do just about anything imaginable: synthesize, capture, process, and analyze; mix, listen, visualize and more.

Applications include:

Audio recording/playback.
Audio converters/re-encoders.
Jukeboxes, and Play Lists.
Audio broadcasting.
Connecting to audio streams.
Audio Editing, and analysis.

Supports ASIO and VST 2.X and VST 3

"Audio Stream Input/Output (ASIO) is a computer sound card driver protocol for digital audio specified by Steinberg, providing a low-latency and high fidelity interface between a software application and a computer's sound card." (See steinberg.net. Quote from wikipedia.)

"Steinberg's Virtual Studio Technology (VST) is an interface for integrating software audio synthesizer and effect plugins with audio editors and hard-disk recording systems." ( See steinberg.net. Quote from wikipedia.)

"VST3 marks an important milestone in audio technology with a completely rewritten code base providing not only many new features but also the most stable and reliable VST platform ever." ( See steinberg.net. )

Play recorded audio (see .NET or VCL tutorial):

/system/imgs/16/original/AudioPlay.jpg?1311865789

Capture and record audio (see .NET or VCL tutorial):

/system/imgs/20/original/AudioCapture.jpg?1311865955

Capture, process and record audio:

/system/imgs/17/original/AudioRecord.jpg?1311865816

Play or capture, analyze the audio, and display the results:

/system/imgs/18/original/AnalyzeSignal.jpg?1311865862

Mix different audio sources, record and listen to the result:

/system/imgs/19/original/AudioMix.jpg?1311865905

The latest version of AudioLab supports the older Win32 API ( WaveAPI, Audio ACM ), the newer DirectShow and DMO; and allows, if needed, any mixture of these technologies. The developer can choose the technology and can switch from one to the other at any moment: AudioLab hides the complexity of the chosen technology and makes the components look almost identical from the developer's perspective.

Here is the full list of the supported technologies:

Win32 API:

Audio Compression Manager ( ACM )
WaveAPI

DirectX:

DirectShow
Direct Media Objects ( DMO )

Intel:

Intel MMX
Intel Performance Primitives ( IPP )

The library includes Wave Player, Wave Logger with compression capabilities, DirectShow Audio Player and Audio Logger, Signal and Noise generators, graphic equalizer, audio mixer, multiplier, convertors, spectrum component, channel splitter and merger, a Win32 API and DirectShow Audio Capture components, a Win32 API and DirectShow Audio Playback components. Three additional components from the SignalLab have been added to allow processing Spectrum Data.

Our component libraries come in 3 versions a VCL - Firemonkey version (for Delphi / C++ Builder / RAD Studio 10.3 or higher), an MFC compatible Visual C++ version, and a .NET 4.0 supporting Visual Studio 2005 or higher.

The RAD Studio version is a set of native VCL and Firemonkey components of which all include now the powerful Mitov Runtime.

The Visual C++ version is a set of native Visual C++ classes (components).

The NET 4.0 (4.5 and higher compatible) version is a set of managed .NET components. The .NET version has the same performance as the native versions, and supports all the Microsoft .NET languages including Visual Basic, C#, J#, F# and C++/CLI.

Due to the unique architecture of the OpenWire platform, the components are implemented the same way in Managed .NET and native Windows (32 and 64 bit) environments. The code to control a component from VB.NET, C++/CLI, C#, and J#, Visual C++ MFC, Delphi, and C++ Builder is almost identical. This allows the developers to migrate and share code between the different environments thus significantly improving the productivity.

OpenWire Libraries: for fast, complex data stream processing with almost zero lines of code!

Analysis

ALSpectrum		Multi channel audio spectrum
ALGoniometer		Implements audio Goniometer

Audio Filters

ALAudioToReal		Converts Wave Audio Data Buffers into Real Data Buffers
ALGenericFilter		User defined filter for Audio data
ALAudioMixer		Mixes two or more audio signals
ALAmplifier		Amplifies the audio
ALGraphicEqualizer		Graphic Audio Equalizer
ALDelayLine		Delays the signal
ALRemoveDC		Removes the DC component from the audio signal
ALBandPass		Performs a BandPass filter over the input signal
ALBandStop		Performs a BandStop filter over the input signal
ALHighPass		Performs a HighPass filter over the input signal
ALLowPass		Performs a LowPass filter over the input signal
ALCombFilter		Performs a Comb filter over the input signal
ALDynamicRangeCompressor		Dynamically adjusts the amplification of the audio.
ALVSTHost		VST 2.X PlugIn host component
ALVST3Host		Use this component to host VST 3.X PlugIns

Audio combined input/output components

ALASIOAudioDevice

Captures from and sends audio to multiple channels of ASIO audio input/output device

Audio generators

ALGenericGen		User defined generator for Audio data
ALSignalGen		Tone, Triangle or Rectangle audio signal generator
ALRandomGen		Random audio signal generator
ALGaussGen		Gaussian random audio signal generator

Audio output components

ALAudioOut		Sends audio data to an audio output device
ALOggLogger		Records the audio to Ogg file
ALRawLogger		Records Raw (unformatted) audio data
ALWaveLogger		Records the audio to Wave file.
ALLAVAudioLogger		Records the audio to Audio file using FFMPeg/LibAV

Audio source components

ALOggPlayer		Plays audio from Ogg file
ALWavePlayer		Plays audio from Wave file.
ALDSAudioPlayer		Plays audio from Audio file using DirectShow.
ALAudioIn		Captures audio from an audio input device.
ALLAVAudioPlayer		Plays audio from Audio file using FFMPeg/LibAV

Compression

ALAudioDecompressor		Decompresses compressed audio
ALAudioCompressor		Compresses audio
ALVorbisCompressor		Compresses audio using Vorbis
ALSpeexDecompressor		Decompresses Speex compressed audio
ALSpeexCompressor		Compresses audio using Vorbis
ALVorbisDecompressor		Decompresses Vorbis compressed audio
ALLAVAudioCompressor		Compresses audio using FFMPeg/LibAV
ALLAVAudioDecompressor		Decompresses compressed audio using FFMPeg/LibAV

Converters

ALAudioToReal		Converts Wave Audio Data Buffers into Real Data Buffers
ALRepack		Rearranges the samples into buffers with a specified size
ALRealToAudio		Converts Real Data Buffers into Wave Audio Data Buffers
ALChannelSplitter		Splits the multi-channel audio into mono channels
ALChannelMerger		Merges mono channels into a single multi-channel audio
SLChangeRange		Changes the output range of the signal
SLDetectLevels		Detects levels in the input signal
SLPair		Pairs multiple data buffers together
SLMakeStructure		Combines elements into a strucrure
SLSplitStructure		Splits a structure into multiple elements

Custom Filters

SLGenericRealValue		User defined filter for Real values
SLGenericReal		User defined filter for Real data
SLGenericFilter		User defined filter for Binary data
SLGenericRealMatrix		User defined generator for Real matrix data

DirectShow Audio Filters

ALDMOEffect		Performs DMO Effect over the Audio
ALDSAudioFilter		Passes audio trough a DirectShow filter

DirectShow Audio output components

ALDSAudioOut		Sends audio data to an audio output device
ALASFLogger		Records the audio to WMA or ASF file
ALASFBroadcast		Broadcasts WMA or ASF streams over Internet using TCP/IP socket and/or publishing point(s)
ALDSToSinkFilter		Sends audio to a DirectShow filter
ALDSAudioLogger		Records the audio to Audio file using DirectShow.

DirectShow Audio source components

ALASFPlayer		Plays ASF and WMA Audio Files
ALDSFromSourceFilter		Captures audio from DirectShow filter
ALDSAudioIn		Captures audio from an audio input device using DirectShow.

DirectShow Compression

ALDSAudioCompressor		Compresses audio using DirectShow
ALDSAudioDecompressor		Decompresses compressed audio using DirectShow

DirectShow support components

MLDSMediaFilter

Passes media trough a DirectShow filter

Displays

MLDSGraphView

DirectShow graph display

Generic Filters

SLGenericReal		User defined filter for Real data
SLGenericFilter		User defined filter for Binary data
SLGenericRealMatrix		User defined generator for Real matrix data
TLGenericTextFilter		User defined filter for Text data
TLGenericFilter		User defined timing filter

Generic Generators

SLGenericGen		User defined generator for Binary data
SLGenericRealGen		User defined generator for Real data

Meters

ALVUMeter		VU (Volume Unit) Meter
ALPPMMeter		PPM (Peak Programme Meter) Meter
ALRMSMeter		RMS (Root Mean Square) Meter

Other

ALQueuedSwitch		Multi-channel queued video and audio switch
ALSystemMixer		Controls the Windows system audio mixer
ALSnapshot		Takes a snapshot of the data
ALSwitch		Enables or disables the audio to go trough
ALBufferQueue		Audio buffer queue component
ALMasterVolume		Controls the Windows system Master Volume Control
OpenWireStudio		Loads, executes, and exchanges data with OpenWire Studio projects

Signal Filters

SLGenericRealValue		User defined filter for Real values
SLGenericReal		User defined filter for Real data
SLGenericFilter		User defined filter for Binary data
SLGenericRealMatrix		User defined generator for Real matrix data

Signal Generators

SLGenericRealValueGen		User defined generator for Real values
SLGenericGen		User defined generator for Binary data
SLGenericRealGen		User defined generator for Real data

Timing components

TLWatchDogTimer		Implements a Watch Dog Timer.
TLMainThredEvent		Allows other threads to generate main thread notifications.
TLClockGen		Provides clock for other components.
TLThreadEvent		Use this component to execute code in a separated thread
TLStopWatch		Use this component to implement a Stop Watch
TLFrequencyMeter		Use this component to implement a Frequency meter
TLCounter		Use this component to implement a Counter

Transformations

SLAverageValue

Use this component to average the input values

Visualization

SLScope		Visible Scope/Plot component for representing floating point data
SLWaterfall		Visible waterfall for representing Real(double) data

Video Layers

SLScopeLayer		A scope drawing layer. You can add this layer to any drawing component such as TVLDraw to render a video layer containing a scope
SLWaterfallLayer		A waterfall draw layer. You can add this layer to any drawing component such as TVLDraw to render a video layer containing a waterfall

Matrix Layers

SLExternalScopeMatrixLayer		A scope matrix component layer
SLExternalWaterfallMatrixLayer		A waterfall matrix component layer

Control Element

SLExternalScopeElement		A scope component element
SLExternalWaterfallElement		A waterfall component element

AudioLab: What's New

New in Version 8.0.0.153 (released on 2025-09-29)

Added Delphi/C++ Builder 13.0 Florence support
Improved 64 bit compatibility
Improved performance
Added ForGraphics and ForLockBits for IGPBitmap
Added TIGPVclCanvasHelper.IGPFont
Added TIGPFontHelper and TIGPVclFontHelper
Added support for property list values descriptions
Modified to use the new Make class method for creating objects and returning interface
Simplified collections usage
Improved MItov.TypeInfo
Improved JSON support
Improved Dynamic Type Info support
Improved Android support
Improved OpenWire Graphical Editor
Improved Debugger Visualizers

New in Version 8.0.0.147 (released on 2025-05-24)

Improved performance
Improved UInt64 Designers support
Improved Int64 and UInt64 JSON support
Fixed bug when editong font names
Improved OpenWire Editor rendering

New in Version 8.0.0.142 (released on 2025-03-26)

Added IGPGraphicsPath.ForFigure
Added option to preserve Dynamic Element Types when when serializing

New in Version 8.0.0.141 (released on 2025-03-20)

Added RAD Studio 12.3 Athens support
Added support for the new 64 bit RAD Studio IDE

New in Version 8.0.0.140 (released on 2025-03-09)

Improved IGDIPlus image codecs support
Added IGPMatrixStore.Restore method
Added IGPGraphics.ForHDC
Added IGPGraphics ForSavedRenderingOrigin, ForSavedCompositingMode, ForSavedCompositingQuality, ForSavedTextRenderingHint, ForSavedContrast, ForSavedInterpolationMode, ForSavedSmoothingMode, ForSavedPixelOffsetMode, ForSavedTransform, and ForSavedClip
Added DivideBy, Bottom, and Right to TIGPRect and TIGPRectF
Added TIGPFMXBitmap class
Added TIGPFMXBitmapHelper, TIGPFMXGraphics, and TIGPFMXCanvasHelper class helpers
Added ForGraphics to TIGPVclBitmapHelper, and TIGPVclCanvasHelper
TJsonParser renamed to JsonParser
Initial migration to using Make instead of Create class methods for creating interfaced objects
Improved performance
Added component name highlighting in the property editor
Improved Sockets error handling
Added option to pass multiple patterns to ForFiles
Added support for hint images
Improved 64 bit support
Added support for paste multiple items
Added ForNames and ReadAnyString to IReader
Added IsConnectedByIDs with Set parameter
Improved C++ Builder Win64x compatibility
ClockPin renamed to ClockInputPin in some of the components
Improved HEX editor
Added Playing, CanPlay, and CanStart properties to TVLVideoPlayer and TALAudioPlayer

New in Version 8.0.0.126 (released on 2024-08-19)

Improved Delphi 12 support
Improved Design time property and component editors
Improved TALDSAudioOut implementation
Improved TTLMainThreadEvent implementation
Improved support for Packing/Unpacking Structure and Packet elements
Improved TALDSAudioPlayer on progress event implementation
Improved Scope implementation
PreviewPins renamed to PreviewOutputPin, and PreviewInputPin correspondingly
Improved Pause handling for TALDSAudioPlayer
Added option to resize the buffers when loading from files

New in Version 8.0.0.120 (released on 2024-06-14)

Improved Delphi 12.0 support
Improved Persistent Collections Editor
Improved LiveBinding editor performance
Added Terminate for IShellProcess
Added TFileHelper with ContentEquals method
Improved compatibility with the Delphi 12.0 Modern Compiler
Added Unsigned buffer support
Improved performance
Improved Scope/Waterfall screen refresh
Improved Debugger Visualizers
Improved TDSAudioOut implementation

New in Version 8.0.0.108 (released on 2024-02-21)

Improved C++ Builder support
Improved Design time Performance

New in Version 8.0.0.101 (released on 2023-12-06)

Added Delphi 12 support
Redesigned installation not requiring Admin privileges when compiling the libraries
Improved Performance
Added Sets support
Improved Mitov TypeInfo
Improved Dynamic Type Info
Improved Mitov Design Time API
Redesigned Persistent Collection Editor
Modernized Dialogs
Improved Win64 support
Improved Container Classes
Added TDirecory helper
Large number of bug fixes
Improved Property and Component Editors
Added MouseHitPoint to Scope Channels, and Waterfall Highlighting

New in Version 8.0.0. 77 (released on 2022-04-30)

Improved Scope Threading support

New in Version 8.0.0. 74 (released on 2022-04-25)

Updated maintenance release for RAD Studio/Delphi 10.4 Sydney with minor improvements

New in Version 8.0.0. 73 (released on 2022-04-20)

Updated maintenance release for RAD Studio/Delphi 10.3 Rio with minor improvements

New in Version 8.0.0. 69 (released on 2022-03-28)

Added support of indexed list collection enumebarbles
Improved MAC64 support
Improved OpenWire Graphical Editor
Improved performance
Improved support for drag-able Scope and Waterfall markers
Added mouse events for Scope and Waterfall marker cross hairs

New in Version 8.0.0. 63 (released on 2022-03-09)

Updated maintenance release for RAD Studio/Delphi 10.4 Sydney

New in Version 8.0.0. 62 (released on 2022-03-07)

Updated maintenance release for RAD Studio/Delphi 10.3 Rio

New in Version 8.0.0. 59 (released on 2022-03-02)

Improved RAD Studio 11 compatibility
Improved RGBW and RGBWAlpha color support
Improved Execute Process implementation
Improved support for OpenWire State pins
Improved Structure components support
Significantly expanded MouseHitPoint settings for the Scope, and Waterfall
Added Clock Event elements in Make/Split Structure components

New in Version 8.0.0. 48 (released on 2022-01-28)

Added basic RGBW and RGBWAlpha support
Number os small design time bug fixes

New in Version 8.0.0. 43 (released on 2021-12-21)

Improved RAD Studio 11 compatibility
Improved Mitov.Runtime collections
Improved performance
Improved Dynamic Type Info support
Improved Visual Live Binding support
Improved elements editor
Improved VST3 Host support

New in Version 8.0.0. 36 (released on 2021-10-11)

Added RAD Studio 11 support
Improved Performance
Improved Property Editors
Improved Debugger Visualizers
Added more Format Converters
Improved JSON support
Improved FMX Waterfall implementation

New in Version 8.0.0. 27 (released on 2021-06-20)

Improved RAD Studio 10.4 Sydney support
Improved Dynamic Type Info implementation

New in Version 8.0.0. 21 (released on 2021-05-12)

Added RAD Studio 10.4 Sydney support
Improved Dynamic Type Info implementation

New in Version 8.0.0. 0 (released on 2020-11-26)

Added Visual Studio 2019 support
Redesigned Visual C++ support
Added Byte and Char visual live bindings
Significantly improved loading execution, and editing speed
Significantly improved JSON support
Improved IGDIPlus rendering performance
Modified to use interface class function methods instead of constructors
Redesigned pin path collection to significantly improve the speed
Redesigned to set pin and properties owner fields on creation
Improved pin information caching
CreateLock replaced by Create with Lock parameter
Improved FMX Design Time support
Improved FMX support
Improved zoom selecting in the scope

New in Version 7.8.3.72 (released on 2020-09-24)

Updated to RAD Studio 10.3 Rio Update 3
Added support for Boolean Buffers
Improved buffer visualizers
Added Audio and Video support to the Packet and Structure components
Added UnpackedOutputPin to the Split Structure and Unpacket components
Significantly Improved FMX support for the Scope and Waterfall components
Improved Unpacket implementation
Improved Visual Live Bindings
Significantly redesigned OpenWire Editor
Added initial Quaternion and 3D Point support
Added OSX64 support
Improved overall performance and stability
Added option to use Const anonymous methods for improved performance
Improved FMX compatibility and support
Simplified JSON API
Improved JSON implementation
Improved sockets implementation
Added Sockets Multicast support
Significantly improved Execute Process implementation
Added support TStrings reverse enumerators and Query interface trough class helper
Improved Dynamic Type Info implementation
Improved Property Collection and Component Collection editors
Improved Property editors

New in Version 7.8.2.288 (released on 2018-12-21)

Added RAD Studio 10.3 Rio support
Improved Dynamic Type Info implementation
Improved property editors

New in Version 7.8.2.271 (released on 2018-11-12)

Added Initial Linux support
Added Initial iOS support
Added RAD Studio 10.2 Tokyo support
Added Visual Studio 2017 support
Added 64 bit Visual C++ support
Improved MAC, and Android compatibility
Added support for floating point Wave files
Added ALMasterVolume component
Added 64 bit ASIO support
Added OnDragged event for TSLDisplayCursor
Improved support for Scope Cursors
Added separated AutoScaling EnabledMin and EnabledMax properties
Added initial Waterfall Interpolate option
Added TSLWaterfallMarkers.AddAt
Added CursorTrail settings
Added GetXIndexesAtValue and GetYIndexesAtValue to the Scope Channels
Added serialization for ISLDataBuffer
Added buffer enumerators
Improved bindings API
Pins converted to use the new Mitov.Runtime serialization
Added OWRequiredPinAttribute support
Added TOWIntToCardinalFormatConverter and TOWCardinalToIntegerFormatConverter
Added TOWRealToRealComplexFormatConverter
Added TOWRealListStatePin and TOWIntegerListStatePin
Added Execute Process
Added Command Line parsing and Process Execute
Added option to disable the design time extentions
Added Socket Binding
Redesigned JSON Serialization
Added TPeriodicThread
Added initial Dynamic Type Info implementation
Added GetIndexedSubProperty in the RTTI
Added GetType for TObject in the RTTI
Added support for both object and class in TMethodInfo.Invoke in the RTTI
Enchanced Query functionality
Added IPairCollection
IArrayWriter renamed to ISequentialWriter
IArrayReader renamed to ISequentialReader
Improved Serialization Readers
Added Reserialize
Improved design time property editors support
Added option to replace property collection items while keeping all compatible settings
Added filtering for property collections
Added support for categorized list property selection
Added TreeView filtering support
Updated to use the latest Delphi language features

New in Version 7.8.0.0 (released on 2016-05-03)

Added RAD Studio 10.1 Berlin support
Removed the old .NET 2.0 Assemblies
Added Visual Live Binding property editors
Added Reset to Default property editors
Added Enum property editors
Added Class events property editors
Added Multi-Event property editors
Added Flush for the AudioMixer
Added option to Enable the processing engines
Introduced MAC support for some of the components when compiling with source code

New in Version 7.7.0.0 (released on 2015-10-28)

Added 10 Seattle support
Added support for VS2015
Added TOWBoolToIntFormatConverter
Improved threading support
Improved OpenWire Editor
Clock pins changed to MiltiSink
Improved Design Time Editors
Improved JSON support
Improved collections
Added more Live Binding types
Added support for hosting OpenWire Studio projects
Added serialization support in the buffers
Added TALGoniometer

New in Version 7.6.0.0 (released on 2015-04-17)

Added TTLGenericFilter
Added more visual live binding types
Significantly improved property Delphi editors
Added option to specify MaxSamples that can be queued per channel in the Audio Mixer.
Timestamps interfaced

New in Version 7.5.1.0 (released on 2014-12-20)

Improved .NET support
Enchanced OpenWire Editor
Added custom toolbar buttons, and images to the PlotLab components
Added more visual live bindings
Added custom Width for the display cursors to the PlotLab components
Improved TALDSAudioModes support for the TALDSAudioIn

New in Version 7.5.0.0 (released on 2014-11-18)

Improved Speex support
Improved FFMpeg support
Added button events to the PlotLab components
Added selection mouse events to the PlotLab components
Added HoldWhileZooming to the PlotLab components
Added DisplayChannelLink custoom drawing to the PlotLab components
Includes the free Mitov.Runtime
Added XE7 support

New in Version 7.0.0.0 (released on 2014-04-15)

XE5 and XE6 support
Significantly enhanced OpenWire Editor
Improved Property and component editors
Improved FireMonkey support
Performance improvements
Added FFMPeg AudioLogger, AudioPlayer, AudioCompressor, and AudioDecompressor
Improved access to the filter taps
Added filter taps access to the Graphic Equalizer
Added TLPProcessingManager component
Added TTLSynchronize component
Added support for IIR, and Biquad IIR LowPass, HighPass, BandPass and BandStop filetrs
Added presets support for VST3
Added support for DB signal data binding
Added a number of new data bindings
Added support for VCL DB Components visual live binding

New in Version 6.0 (released on 2013-06-12)

Added support for Delphi / C++ Builder / RAD Studio XE4
The OpenWire Editor and Visual Live Binding are now included in the install
Added VST 3.0 support
Improved VST 2.X support
Added TTLStopWatch component
Added TTLCounter component
Added TTLThreadEvent component
Added TTLFrequencyMeter component
Added TSLAverageValue component
Improved Firemonkey support
Significantly improved threading model and performance
Significant code reduction due to upgrade to the latest language features such as generics, anonymous methods, and attributes
New design time API and functionality
Better integration with the OpenWire Editor including inplace editors in the OpenWire view
Discontinued support for Delphi and C++ Builder versions older than XE2 due to the lack of support for the latest language features in them
Redesigned DirectShow support
Improved .NET memory management
Improved .NET design time integration
Improved OpenWire Editor .NET integration

New in Version 5.0.3.1 (released on 2012-10-20)

Fixed a bug when populating existing buffers in .NET generic filters

New in Version 5.0.3 (released on 2012-10-10)

Added support for VST 2.X
Added TMLDSMediaFilter component
Added TTLGenericTextFilter component
Added cursor pins for the Waterfall component
Added floating markers for the Scope component
Added support for Delphi / C++ Builder / RAD Studio XE3
Added support for Visual Studio 2012
Improved Firemonkey support
Fixed memory leak for .NET generic filters

New in Version 5.0.2 (released on 2012-04-16)

Added FireMonkey support.
Added 64 bit support for VCL, FireMonkey, and .NET
All .NET assemblies are now managed assemblies.
The .NET assemblies are reduced by half combining low level and high level assemblies, and simplifying deployment.
All .NET assemblies now contain the necessary 32 and 64 bit BPLs and DLLs internally simplifying the deployment.
The .NET Visual C++ redistributable are not needed any more.
Added access to IBaseFilter in the DirectShow audio capture component.
Added PlotLab Waterfall Cursors, CursorLinks and Labels.
Added PlotLab Waterfall Cursor Intersection pins.

New in Version 5.0.1 (released on 2011-10-18)

The managed assemblies are now rewritten in C# for better .NET 4.0 compatibility.
Added support for .NET 4.0 and .NET 3.5 “Client Profile”.
Significantly improved .NET type converters.
Significantly optimized component loading performance in .NET.
Major improvements in the .NET property editors.
Small improvements in the Unicode support for VC++.
Improved VisualStudio 2010 .NET support.
.NET assemblies have been renamed to better match the Microsoft guidelines.
Added .NET 4.0 assemblies.

New in Version 5.0 (released on 2011-09-05)

Added Delphi XE and XE2 support.
Added TALDynamicRangeCompressorcomponent.
Added DMO values, and envelopes.
Added Scope and Waterfall marker crosshairs.
Added ASF player attributes.
Brand new subsample Waterfall rendering mechanism.
Added optional user input for the video layers.
Significantly improved multithreading model adapted for multicore systems, with advanced relaxed interlocking, and with optional per-component, dedicated threads.

New in Version 4.5

Added Visual Studio 2010 support.
Added TALDSVideoFilter component.
Added TMLDSGraphView component.
Added TSLGenericRealMatrix component.
Added SLGenericRealValue and TSLGenericRealValueGen components.
Improved DirectShow support.
Improved multithreading locks.
Improved Scope component.
Improved RAD Studio 2010 buffer debugger visualizes.

New in Version 4.3.1

Updated install.
Improved RAD Studio 2010 buffer debugger visualizes.

New in Version 4.3

Added RAD Studio 2010 support.
Added support for composite controls.
Added TALDSToSinkFilter and TALDSFromSourceFilter components.
Added component elements support for the Scope and Waterfall components.
Improved .NET memory management.
Added RAD Studio 2010 buffer debugger visualizes.

New in Version 4.0.1

Added multiple axes support for the Scope cursors.
Added support for short, unsigned short and unsigned integer data for the scope and waterfall components.
Improved marker support for the Scope.
Improved installs.
Fixed bug in the ASIO editor.
Fixed bug in TALASFBroadcast component when restarting broadcast.

New in Version 4.0

Full Visual Studio 2008 support.
Full RAD Studio 2009 support.
Added Prism support.
Improved .NET support.
The library is now fully Unicode compliant.
New higher performance multithreading locking for better multi core utilization.
Significantly enhanced buffer classes.
Added integrated GDI+ support.
Added TimingLab ClockGen, WatchDogTimer, and MainThredEvent components.
Added ChangeRange and DetectLevels components.
Added ASIO support.
Added Comb filter.
Added Windows Media Format broadcasting component.
Added buffer queue component.
Added integrated GDI+ support.
The Scope component supports multiple X and Y Axes.
Added Scope and Waterfall toolbar customization.
The Scope now allows data gaps.
Added Scope Automatic data down sampling for faster drawing of huge amounts of data.
Added Scope X Axis logarithmic support.
Added Scope channel links (Allow channels to be paired together to form a zone)
Circular and arbitrary zones added to the Scope component.
Added Scope Step channel mode.
Added scope panning navigation mode.
Added Scope directional zooming.
Added Scope and Waterfall Axis and Level configuration buttons.
Added video layers support.
Added new examples.

New in Version 3.1

Added LowPass, HighPass, BandPass, and BandStop components.
Added ASFAudioPlayer component.
All libraries are available under .NET.
All design time features are now available in .NET
All .NET assemblies are signed.
The assemblies are registered in GAC.
All DLLs are made embedded resources in the assemblies.
Fixed some minor OpenWire problems.
Full RAD Studio 2007 support.
Fixed problems with Reversed and Vertical scope.
Added new custom step modes to the Scope and Waterfall.
Added data access methods to the Waterfall.
Added number of new design editors.
Enhanced help files.
Delphi 2005, BDS 2006, and RAD 2007 help files are now integrated.
Added new examples.

New in Version 3.0

Updated to IPP 5.1.
Added raw closed caption support (allows access to the CC text).
New faster multithreading buffer protection.
New faster buffer memory manager.
The DataAceessObjects for the buffers are now obsolete. The functionality is moved to the buffers.
The buffers raw data access methods now are called Read, Write and Modify. The ModifyData is split into Modify and Write to reduce unnecessary memory copy operations and to improve the performance.
Added 24 and 32 bit PCM audio buffer support.
Added higher than 44100 sample audio rates support.
Added multichannel (More than 2) audio support.
Added Generic generator components.
Added On/Off Switch component.
Added Snapshot component.
Added TALDSAudioCompressor and TALDSAudioDecompressor.
Enhanced ASF profile support.
Added basic Unicode support for Visual C++ MFC.
Fixed bug in CTStrings support in Visual C++ MFC.
Added Spectrum normalization.
Added Scope and Waterfall custom axis labels.
Added Scope channel value intersections support.
Added Scope and Waterfall Axis zooming and toolbars.
Added X/Y plotting support to the Scope.
Added Scope channel highlighting.
Added Scope Channel OnClick events.
Added Scope Cursor events.
Added Scope and Waterfall mouse value tip window.
Added Scope and Waterfall OnZoom events.

New in Version 2.2.1

Fixed a conflict with TChart.
Added Four CC property for the DirectShow Audio and Video compressions.
Improved Audio Mixer.
Added initial support for vertical Scope.

New in Version 2.2

Added BDS 2006 support.
Added Visual Studio 2005 support.
Added Speex compressor and decompressor components.
Added Vorbis compressor and decompressor components.
The Ogg Logger and Player now do not handle compression. Instead they leave the compression/decompression to other components such as Vorbis compressor and decompresor and just handle the Ogg format structures. This allows adding different types of Ogg compression.
Added Scope measurements and selections.
Added basic mouse wheel support.
Enhanced property pages.
Allows adding cursors from the property pages.
Allows reversed X axes for the Waterfall component.
The cursors and the markers now are available in the legend.
The Scope and the Waterfall can receive focus.
New Ogg Logger and Player.
Added Scope cursors, and property pages.
Enhanced Scope markers.
This version fully supports Visual C++.
New queued audio switch component for rapid switching between audio sources while running.
Added sample step in all the Spectrum component.
Added Waterfall markers.
Added custom draw functionality in the Scope channels.
Added Undo/Redo zoom functionality.
Added channel editor for the Scope.
Added Marker editor for the Waterfall.
Improved Audio Compression support.

New in Version 2.1

This version does not need any DLLs in order to work.
New compression and decompression components for Audio over IP applications.
New Windows Media Format component for creating ASF and WMA files and protected content.
The logging components have been redesigned to better support splitting audio files.
Improved master pumping.

( Click to view Larger images. )

These demos are executable after downloading.
Also see: Demo source code downloads

AudioLab Examples

Volume Monitor				Demo: Volume Monitor Demo
Plot then Play Wave File				Demo: Plot Wave Data demo
Process Audio				Demo: Process Audio demo
Audio Waterfall				Demo: Player Waterfal demo
Audio Display				Demo: Audio Display demo
Audio Mixer				Demo: Audio Mixer demo

AudioLab: Frequently Asked Questions

Q: Does AudioLab support the format of my Audio Files?

A: AudioLab supports both Win32 API and DirectShow technologies. Win32 API will allow you to play only Wave files. If you decide to use DirectShow AudioLab will use any DirectShow filter available on your system. If you have a DirectShow filter for a particular video format AudioLab will recognize the format and use the proper filter. This means that AudioLab is capable of using any format available today. If you have a file that you can’t play in AudioLab, it means that you probably don’t have the proper DirectShow filter. Please search the web and download the filter needed for the particular format.

Q: I can’t play my video file! What is wrong?

A: In order to play format other then basic Wave you must use the DirectShow TVLDSAudioPlayer component. If you still can’t play the file, please check if you have installed a DirectShow codec for the file format. AudioLab needs a codec available in the system in order to decode the file. A huge selection of codecs is available on the WEB.

Q: Do I have to purchase AudioLab?

A: AudioLab is free for non commercial purposes. This means that you can use it for personal pleasure, hobby, or evaluation purposes. If you are student you can also use it for free for your educational needs including school projects. If you are a tutor at present you also can use it for free for your classes. However in the near future a low cost tutor license will be available, and you will have to purchase it. Your students however will not need license to use the product at class.

Q: Is AudioLab multithreading? Will it stop streaming while I move the window with the mouse?

A: Yes. AudioLab is fully multithreaded and will not stop streaming while the main thread is busy.

Q: Does AudioLab support DirectShow?

A: Yes. AudioLab supports DirectShow 8.1 or higher.

Q: What version of DirectShow I need to run AudioLab?

A: AudioLab supports DirectShow 8.1 or higher.

Q: Can I capture and save audio sample out of the audio stream?

A: Yes. Use the TALGenericFilter to obtain the sample. Check the CustomFiltersDemo example in the demos directory.

Q: Can I create a audio on the fly?

A: Yes. Use the TALGenericFilter to generate the buffers. Check the “Quick Start” manual for more information.

Q: Can I process the audio faster than the normal audio speed.

A: Yes. Check the “Quick Start” manual for more information.

Q: I want to copy and paste parts of the audio a new file. Can AudioLab do that?

A: Yes. AudioLab uses DirectShow to play and record files. Many formats do not allow easy positioning and can’t be used with DirectShow Editing Services. AudioLab offers a different approach. It allows you to play even non seek enabled file to a specific position and copy a portion of the file into a new one. Check the “Quick Start” manual for more information.

Q: Can I play audio files from a Web URL?

A: Yes. You can use the TALDSAudioPlayer to play files as well as any audio URL from the web.

Q: I want to use AudioLab. Do I have to install DirectShow?

A: DirectShow is not required on your system if you are not planning to write application using the DirectShow components of the package.

AudioLab Installers

Firemonkey and VCL Installer: AudioLab 8.0.0.153 VCL and FireMonkey for 13.0 Florence

Updated on 2025-09-29, downloaded 12 times.

Firemonkey and VCL Installer: AudioLab 8.0.0.147 VCL and FireMonkey for 12.3 Athens

Updated on 2025-05-24, downloaded 444 times.

Firemonkey and VCL Installer: AudioLab 8.0.0.77 VCL and FireMonkey 32 & 64 bit support for 11.X Alexandria

Updated on 2022-05-01, downloaded 49623 times.

Firemonkey and VCL Installer: AudioLab 8.0.0.74 VCL and FireMonkey 32 & 64 bit support for 10.4 Sydney Update 2

Updated on 2022-04-25, downloaded 472 times.

Firemonkey and VCL Installer: AudioLab 8.0.0.73 VCL and FireMonkey 32 & 64 bit support for 10.3 Rio Update 3

Updated on 2022-04-20, downloaded 416 times.

Visual C++ Installer: AudioLab 8.0.0.0 for Visual C++ MFC

Updated on 2020-11-26, downloaded 13892 times.

.NET Installer: AudioLab 8.0.0.1 for Microsoft .NET 4.0 (4.5 and 4.6 compatible)

Updated on 2020-11-26, downloaded 33230 times.

Legacy Firemonkey and VCL Installer: AudioLab 7.8.2.288 VCL and FireMonkey 32 & 64 bit support for 10.2 Tokyo and 10.3 Rio

Updated on 2018-12-22, downloaded 1118 times.

Legacy Firemonkey and VCL Installer: AudioLab 7.8.2.0 VCL and FireMonkey 32 & 64 bit support for XE8 to 10.1 Berlin

Updated on 2016-06-06, downloaded 1773 times.

Legacy Firemonkey and VCL Installer: Legacy AudioLab 5.0.3 VCL and FireMonkey (Windows only) for 2010 to XE

Updated on 2016-05-04, downloaded 21239 times.

Legacy Firemonkey and VCL Installer: AudioLab 7.7.0.0 VCL and FireMonkey 32 & 64 bit support for XE7 to 10 Seattle

Updated on 2015-10-28, downloaded 1111 times.

Legacy Firemonkey and VCL Installer: AudioLab 7.6.1.0 VCL and FireMonkey 32 & 64 bit support for XE6 to XE8

Updated on 2015-06-11, downloaded 3716 times.

Legacy Firemonkey and VCL Installer: AudioLab 7.5.0.0 VCL and FireMonkey 32 & 64 bit support for XE4 to XE7

Updated on 2014-11-19, downloaded 3499 times.

Legacy Firemonkey and VCL Installer: AudioLab 7.0.0.0 VCL and FireMonkey 32 & 64 bit support for XE3 to XE6

Updated on 2014-04-22, downloaded 1459 times.

Legacy Firemonkey and VCL Installer: AudioLab 6.0.0 VCL and FireMonkey (Windows only) 32 and 64 bit support for XE2 to XE4

Updated on 2013-06-13, downloaded 8149 times.

Legacy Firemonkey and VCL Installer: AudioLab 5.0.3 VCL and FireMonkey for XE2 Update4 Hotfix1

Updated on 2012-10-13, downloaded 2470 times.

Legacy Firemonkey and VCL Installer: AudioLab 5.0.1 for Delphi/C++ Builder 5 to 2009

Updated on 2011-10-18, downloaded 69924 times.

Demos

These demos are executable after downloading. Also see: Demo source code downloads

Audio Recording demo	Demonstrates basic audio recording
Audio Signal Generator demo	Demonstrates using TALSignalGen to generate audible tone (sine), triangle and square waves
Custom Audio Filters demo	Demonstrates applying custom filters to an audio stream
Audio Compression demo	Demonstrates applying audio compressors
Audio Mixer demo	Demonstrates the TALAudioMixer component
Process Audio demo	Demonstrates applying an equalizer to an audio stream and saving the output to file
Volume Monitor Demo	Demonstrates plotting volume levels of playing audio
Waterfall demo	Displays a playing audio stream in a waterfall plot
Plot Wave Data demo	Demonstrates loading an entire WAV file and displaying in a scope

The libraries are licensed per developer, and there are no royalties required. Once you have purchased a developer license, you are free to distribute your final product without the need to pay any royalties or other fees as long as you comply with the following license agreement:

LICENSE - AGREEMENT

Users of the LabPacks Component Pack(Software) must accept these terms of license.

If you refuse to accept the terms of license, you may not use this software, and you have the right to return it within 30 days of the purchase date, and to receive your money back.

For your convenience a copy of this license agreement will be stored on your system during the installation.

This license grants you the following rights:

You have a non exclusive license to the Software. The Title and all intangible rights to the Software are the property of Mitov Software .

You may install and use one copy of the Software per computer assuming only one and the same person will use the Software on all of the computers. You may distribute any application that includes Software without any additional royalties beyond your initial license registration fee.

You can also create a reasonable set of copies of the product on different types of media, such as CD Rom or Type Backup, as far as those copies are used only for your own back up protection.

Description of the limitations.

You may not reverse engineer, decompile, or disassemble the Software.

The Software is licensed as a single product. You may not rent or lease the Software. You must treat the Software like any other copyrighted material except that you may either (a) a reasonable amount of copies of the Software solely for backup or archival purposes, or (b) install the Software multiple computers provided you keep the original solely for backup or archival purposes and only a single developer will use all of the copies.

You may not separate Delphi and C++ Builder components from this Software.

Each developer must have a valid license for the Software.

You may not create a competing component product using this Software.

Additional restriction to Delphi-VCL and C++ Builder components:

You may not distribute the Delphi-VCL components in a DCU (Delphi Compiled Unit) format. You can distribute the component only as a part of your executable or dynamic link library program in a compiled form.

You may not distribute the C++ Builder components in OBJ format. You can distribute the component only as a part of your executable or dynamic link library program in a compiled form.

Mitov Software grants a limited warranty with these restrictions:

THE SOFTWARE IS SUPPLIED AS IT IS. MITOV SOFTWARE AND ITS SUPPLIERS DISCLAIM ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, WITH REGARD TO THE SOFTWARE. NO LIABILITY FOR CONSEQUENTIAL DAMAGES. TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL MITOV SOFTWARE OR ITS SUPPLIERS BE LIABLE FOR ANY SPECIAL, INCIDENTAL, INDIRECT, OR CONSEQUENTIAL DAMAGES WHATSOEVER (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF BUSINESS PROFITS, BUSINESS INTERRUPTION, LOSS OF BUSINESS INFORMATION, OR ANY OTHER PECUNIARY LOSS) ARISING OUT OF THE USE OF OR INABILITY TO USE THE SOFTWARE.

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