Audio Signal Processing Workshop

In a four-day workshop hosted by V2_, sound artists Frank Barknecht and Aymeric Mansoux introduced the basics of Audio Signal Processing (ASP) in the fields of real-time music production. The workshop specifically targets people who want to develop their work in the digital sound field or those people curious about the processes involved behind the audio software they already use.

Audio Signal Processing Workshop

from Le Placard event [Jan Sprij 2005]

Sep 2005
Sep 2005
11:00 to 18:00
location: V2_, Eendrachtsstraat 10, Rotterdam

The program starts with a theoretical introduction to the basics of digital sound, after which participants will work with the open source software Pure Data (PD) to turn theory into practice. The workshop also teaches and demonstrates which free technologies are available for audio streaming, such as icecast, ogg and vorbis. 

Audio Signal Processing is the manipulation, either measurement or filtering, of an analog (voltage level) or digital (binary numbers) representation of sound. In the Digital Signal Processing field, this implies the conversion of the signal from an analog to a digital one and vice versa with a focus on one particular domain (time, space, frequency, etc.). Audio Synthesis is the art of producing artificially generated sounds using various techniques. This creation can be done either in the analog world (current manipulation) or digital world (discrete values manipulation).

Pure Data (PD) is a real-time graphical programming environment for audio, video, and graphical processing. It is the third major branch of the family of patcher programming languages known as Max (Max/FTS, ISPW Max, Max/MSP, jMax, etc.) originally developed by Miller Puckette and company at IRCAM. The core of PD is written and maintained by Miller Puckette and includes the work of many developers, making the whole package very much a community effort.
It's hard to describe the possibilities of such an environment as its fields of creation are almost infinite. From audio processing, to video, 2D/3D, interactivity, on-line experimentation, streaming and sensors, Pure Data can handle all of these and provide a rock-stable system which is perfect for performances and installations of any kind.

Streaming audio is audio that is consumed while it is being delivered. Audio files can start playing as soon as downloading begins. Streaming audio makes it possible to broadcast live or pre-recorded music over the internet on a continuous basis. Web radio or performances can be broadcasted to a worldwide audience. As bandwidth improved in the past few years, Internet broadcasting boomed.

Le Placard: Rotterdam Headphone Lounge wraps up this four-day workshop on Sunday, September 4th.

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