This tutorial outlines a way to use Dirac to change pitch and speed independently of each other using FMOD to process and play back sound in real time. The example presented here uses FMOD’s streaming sound API but can be easily adapted for offline processing and other use cases as well. Read more
“A remixer’s dream come true” you might call this recent development created and marketed by newly founded company Zynaptiq out of Hannover, Germany, that we’re proud to be associated with.
PitchMap is not just your regular kitchen pitch shifter – it is a tool based around music recognition that actually de-mixes and pitch shifts instruments in a mix at the same time. Oh, and did I forget to mention: yes, it does all of this in real-time, on an off-the-shelf Mac (Windows support is being worked on). Not only allows this tool to correct for off-key arrangements after all the musicians have left the stage to do more interesting stuff and join the festivities in the VIP lounge. It also allows for real-time manipulation of all your favourite hits to suit your personal mood and preferred musical style – directly by interacting with them on your own MIDI keyboard. It’s like you had all the musicians right at your fingertips performing to your commands. If you ever wondered what Michael Jackson’s “Stranger in Moskow” sounded like after he had his 3rd round of Gorbachov Vodka you can use PitchMap to change the scale accordingly to compensate for the “drift”, or, if you’re so inclined, you could listen to any classical recording being played in another key or mood.
Check out their video and web site at http://www.zynaptiq.com and if you’re on a Mac make sure you give their free demo version a spin.
With this tool, you too can change the laws of physics!
Mainz, Germany, December 8th, 2011 — Software developer Tom Zicarelli has released an open source iOS audio processing graph demonstration called “audioGraph”. According to the author the work is in part based on the DSP Dimension pitch shifting tutorial.
Get the code from https://github.com/tkzic/audiograph
Mainz, Germany, December 6th, 2011 – We’re happy to announce the immediate release of version 1.29 of our RTmorph Realtime Audio Morphing library for MacOS X and Windows 32/64bit. The new version contains fixes that affect stability and performance and is available from our RTmorph download site, you need to be a registered licensee to access it.
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.
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
Mainz, April 9th, 2011 – The German Apple-centric “Apfelwahn” Blog features a review of Prosoniq’s sonicWORX Isolate software as well as an interview with the DSP Dimension’s founder Stephan Bernsee (both in German language) who has developed this software for Prosoniq.
sonicWORX Isolate is the world’s first software that allows extraction and suppression of instruments and voice within a mix and has received great attention since its introduction at Musikmesse 2010. More information (as well as a feature-restricted demo version) is available from http://www.sonicworx.com.
Mainz, April 6th, 2011 – We’re happy to share a link to this month’s cover story in Mix Magazine which talks about an exciting 3D audio technology called “AstoundSound”. AstoundSound was developed by GenAudio’s founder Jerry Mahabub and it is being used extensively in GenAudio’s own AstoundStudio facility as well as in other studios around the world.
We are very proud that the DSP Dimension is closely working with GenAudio since 2005 providing key signal processing services to help turn their concepts into successful products.
GC Audio’s Jeff Touzeau also has an article on GenAudio’s AstoundSound process here: