Max/MSP: diracLE~ external by Timo Rozendal
September 23, 2011 - Time Rozendal releases a high quality timestretching and pitchshifting external with autotune option for Max/MSP on the Mac. The package includes 3 Max for Live devices as well. The external is based on the free LE version of DSP Dimension‘s Dirac algorithm. You can use it to play from a buffer~ without latency added, or alternative you can place it in an audiostream (in this case you have quite some latency, but luckily hosts like ableton live correct for this automatically).
You can find it here: http://www.timorozendal.nl/?p=434
The DSP Dimension Releases Free Pitch Shift AudioUnit Plug-In “DiracFxAU”
Mainz, Germany, September 14th, 2011 – The DSP Dimension, one of the leading providers of DSP technology for music and speech applications today announces the release of “DiracFxAU”, a free pitch shifting plug-in for the Apple AudioUnit platform based on its new DiracFx API. DiracFx is a high performance pitch shifting and time stretching algorithm that allows changing pitch and speed of audio signals independently of each other at very high quality and very fast speed. Optimized for use on mobile platforms DiracFx uses no trigonometric operations and is available for iOS, MacOS X, Windows and Linux. A feature-limited DiracLE edition of the SDK is available to developers at http://dirac.dspdimension.com (this distro also contains the AU plug-in), a professional version can be licensed from The DSP Dimension upon request.
DSP Dimension Releases Dirac 3.5 – Introduces DiracFx API
Mainz, Germany, September 13th, 2011 – The DSP Dimension today announces the immediate availability of version 3.5 of its award winning cross-platform time stretching and pitch shifting library DIRAC. Version 3.5 is a free update for licensed users and adds new features to the Dirac core and the DiracRetune API, such as key mapping and automation callbacks. It also introduces “DiracFx”, a new API that offers transient-aware time stretching and pitch shifting for polyphonic music at unprecedented speed and unbelievable quality. DiracFx is the world’s first time stretching algorithm that does its DSP magic without using trigonometric functions, resulting in dramatically increased performance over traditional FFT based methods.
The free DiracLE library has also been updated and now contains a free DiracFx AudioUnit pitch shifting plug-in for MacOS X 10.5 and higher (32 and 64bit Universal), that can be used with all AudioUnit aware host applications on any MacOS X system. Plenty of example projects for Linux, MacOS X, iOS and Windows are included with DiracLE, which can be downloaded for free from http://dirac.dspdimension.com
Dirac Time Stretch v3.2.5 Adds Realtime Examples and iOS 4.3/Xcode 4 Compatibility
Mainz, Germany, April 6th, 2011 — The DSP Dimension announces the immediate availability of version 3.2.5 of its critically acclaimed time stretching and pitch shifting technology Dirac. This new version improves stability on all platforms and adds new realtime processing example projects for iOS and MacOS X. This version also adds full compatibility with Apple’s new Xcode 4.
DiracLE and PRO evaluation have already been updated with the other versions to follow later this week.
Dirac 3.2 Now Available For Download
Mainz, Germany, November 30th, 2010 — The DSP Dimension announces the immediate availability of version 3.2 of its critically acclaimed time stretching and pitch shifting technology Dirac. Version 3.2 is available to all licensing partners and also to the general public via the free DiracLE version for MacOS X, Windows, Linux and the iPhone, which can be downloaded from http://dirac.dspdimension.com
New in version 3.2:
- [MacOS X][iOS]: Improved performance of vectorized code for kDiracLambdaPreview and kDiracLambdaTranscribe
- [iOS]: Compiled against latest iOS 4.2 SDK
- [iOS]: Removed unsupported UNIX symbol that caused the linker to fail when compiling for simulator target
- Improved speed of formant correction, up to 2.4x on vector-enabled platforms
- kDiracPropertyUseConstantCpuPitchShift in combination with kDiracLambdaTranscribe could cause unexpected results
- fixed crash with kDiracLambdaTranscribe and sample rates other than 22.05kHz and 44.1kHz
- fixed gain change when using kDiracLambdaTranscribe
- Removed cache warning messages
- Fixed formatting error in parameter output when using DiracPrintSettings()
- Optimized memory footprint when using kDiracLambdaTranscribe
- Introduced kDiracPropertyCacheMaxSizeFrames and kDiracPropertyCacheNumFramesLeftInCache property constants
- Added cross platform time measurement utilities, DiracStartClock() and DiracClockTimeSeconds() to keep the example projects more readable
- Added CPU usage measurement tools (DiracPeakCpuUsagePercent())
Dirac Version 3.03 Now Available
Mainz, November 1st, 2010 - The DSP Dimension announces today the release of version 3.03 of its critically acclaimed time and pitch manipulation software Dirac. Version 3.03 has already been made available to all licensees that have a version 3 license plan. An evaluation version is also available upon request, please use the DSP Dimension contact form to request access to the technology evaluation server.
The DSP Dimension Releases Dirac3
Mainz, October 22nd, 2010 – The DSP Dimension announces the immediate availability of Dirac3, the successor of its critically acclaimed time stretching and pitch shifting library for polyphonic audio. Dirac3 allows changing pitch and speed of audio independently of each other without sacrificing audio quality. It offers both realtime and non-realtime processing modes for different applications and speed requirements.
Dirac3 offers vastly improved processing speed, better support for mobile platforms such as the iPhone and iPad (including iOS4 and Accelerate) and specialized processing modes such as DiracRetune and Transcribe. DiracRetune complements Dirac’s pitch correction and can quantize and freeze pitch to the closest semitone. Dirac’s new content aware TranscribeMode allows extreme time stretching factors to slow down audio by as much as 400% without losing attack transients. As with previous versions a free Dirac LE library is provided. LE offers a subset of features and is limited to monaural recordings.
Dirac3 can be licensed as a cost effective mobile version (iPhone, iPad, OS 3.2 and iOS 4+) or as either a stereo STUDIO or a full-featured multichannel PRO desktop license (MacOS X PPC/Intel 32/64bit, x68 Linux 32/64bit, Windows 32/64bit) the latter of which also includes the mobile version.
Existing licensees who have licensed Dirac within 6 months prior to the release of Dirac3 can upgrade for free. An evaluation version of Dirac3 is provided upon request.
The DSP Dimension Releases DIRAC2 on Windows, MacOS X, Linux and iPhone
Mainz, Germany, October 23rd, 2009 — The DSP Dimension is proud to announce the release of version 2 of its much anticipated DIRAC2 Time Stretching and Pitch Shifting object library now available for Windows, MacOS X, Linux and the Apple iPhone. DIRAC2 is available as both a commercial object library offering unlimited sample rates and phase locked multichannel support and as a free single channel, 44.1/48kHz LE version.
Our free DIRAC2 LE project offers the full audio quality of the commercial version, is fully documented and easy to understand, and compiles and works right out of the box. Think of the potential that you can unleash in your app (and the added value) by writing just half a page worth of additional code without even investing a single dollar.
About DIRAC2
DIRAC2 redefines the limits of what todays’ technology can do for your application if you want to change the speed and pitch of music independently without sacrificing quality. Used by leading hi-end audio processing applications and custom built solutions in studios around the world, DIRAC2 is the improved successor to our critically acclaimed DIRAC time stretching and pitch shifting technology that works with both musically monophonic and polyphonic signals with equal ease and success. Its straightforward API makes this an ideal tool for any software project that requires time stretching and pitch shifting.
From Creativity to Hi-End Mastering
DIRAC2 can be used wherever speed and pitch of audio need to be changed independently of each other: for NTSC/PAL frame rate conversion, for adjusting the length of an ad to fit into a predefined time frame, for changing speed and pitch of audio tracks for remixing. It does all these tasks without making your music sound unnatural or altering the stereo image and instrument localization.
Check out DIRAC2 today on http://www.dspdimension.com