In this post, I'm giving insights into the creation of the Spectral Stretch Max for Live Device . There are many ways to achieve audio time stretching without transposition . Some time-based methods build on Pierre Schaefer 's Phonogène . Another approach consists in processing the sound in spectral domain, using a phase vocoder . In this case, the audio samples are converted to spectral data through a Fast Fourier Transform (FFT). Then, even if we focus on extreme time stretching, the details of the phase vocoder implementation have important consequences on the sound quality and the tool's flexibility for live usage. Before introducing the Max for Live device Spectral Stretch, let's have a look at a selection of four possible algorithms: Paulstretch Max Live Phase Vocoder Interpolation between recorded spectra Stochastic Re-synthesis from a recorded sonogram Paulstretch Paul's Extreme Sound Stretch , also known as Paulstretch , is an algorithm designed ...
In April 2008, I was invited by composers Eric Chasalow and Maxwell Dulaney to give a 2-day seminar on spectral sound processing techniques at Brandeis University Music Department . A topic the music students particularly enjoyed was the frozen sound , the audio equivalent of the cinematic " freeze frame shot ". I taught the nuts and bold of the real-time stochastic spectral freeze technique (the stochastic component is aimed at breaking the ice - with the audience). On this video , discover 5 variations on a Max/MSP/Jitter freeze tool: Downloads Note: the Max patches available here have been completely revamped since this article & video were initially published. New Spectral Freeze Max MSP Jitter patches (link updated Nov. 2019) A Tutorial on Spectral Sound Processing with Max/MSP and Jitter: Computer Music Journal, Fall 2008 Syllabus The program for just two 3-hour workshops was quite ambitious! April 14th Overview of the topic : “ Spectral processing...
I've been an active user of the mind mapping technique for years. Again and again, I find it very useful in many situations: planning a concert or a tour working on a course syllabus designing electronic music software or hardware set-up even composing new music I recently discovered a beautiful mind map conceived by pianist and music educator Margaret Brandman . A rich drawing with many ideas to think about for music teachers, and for students, too: I hope you find it thought-provoking - and useful!
Comments
Post a Comment