
were added by Richard Karpen based on functions in SoundHack by Tom Erbe. The control data stems from a precomputed analysis file with a known frame rate.
SOUNDHACK PHASE VOCODER MANUAL
(1998) SoundHack User's Manual Version 0.888. pvc - PVC is a collection of phase vocoder signal processing routines and accompanying shell scripts for use in the transformation and manipulation of. pvoc implements signal reconstruction using an fft-based phase vocoder. au, ULaw, IMA4, TEXT and headerless (raw) soundfiles.Įrbe, Tom. SoundHack measures the amplitude and phase for each frequency at the output of this filter bank. In this technique, the sound to be shifted is sent into a bank of band-pass filters which are evenly spaced from 0 Hz to half the sample rate. Read and write Sound Designer II, Audio IFC, Audio IFF, BICSF (IRCAM), DSP Designer, QuickTime/AIFF, Microsoft WAVE (RIFF), NeXT. SoundHack provides pitch shifting without time scaling with a technique known as the phase vocoder.Soundhack, a stand-alone set of processing algorithms written. Each of these transformations may be made independent of one another meaning pitch may be changed without changing the duration, duration without changing pitch. Change values in the soundfile header (sample rate, number of channels, loop points and marker info). based phase vocoder called SVP (which stands for Super. The phase vocoder is an effective tool for the manipulation of the duration or the pitch of a sound file.Convert between different types of soundfiles with optional gain scaling and sample rate conversion.Record any size soundfile from the Macintosh sound input.Play almost any type of soundfile (including AU, AIFF and WAVE). Phase vocoding (pv) is a form of synthesis by analysis in that a digital sound file or stored buffer is analyzed and is then resynthesized by the phase vocoder.Save sonograms of your soundfile in QuickTime movies or convert QuickTime movies into sound by sonographic analysis.Use your own spectral algorithm with spectral analysis/resynthesis and the spectral assistant example code.Separate transient and steady-state components with the spectral extractor.Soundhack Audio Production / Audio Editors & Recorder SoundHack Spectral Audio Processing. Pitch shifting, harmonizing, time stretching, layered loops, phase. Noise reduction, spectral expansion or compression with the spectral dynamics processor. A Four-Plugin Bundle exploring the classic Phase Vocoder and Granular Synthesis algorithms.Cross-synthesis between two soundfiles with soundfile convolution, ring modulation or spectral mutation.Time stretching or pitch shifting with the phase vocoder or varispeed.AU, VST, VST3 are included, Intel and Apple Silicon.

These functions make SoundHack invaluable to computer musicians, sound effects designers, multimedia artists, webmasters and anyone else who enjoys working with sound. I intended to make it fairly close to the original SoundHack Phase Vocoder from 1991 but couldn’t help but adding a few extras (drone and varispeed).

It performs many utility and esoteric sound processing functions available nowhere else. SoundHack is a soundfile processing program for the Macintosh.
