2nd International Symposium on Ambisonics and Spherical Acoustics, IRCAM, Paris/France General-purpose Ambisonic playback systems for electroacoustic concerts A practical approach Jörn Nettingsmeier freelance audio and event engineer [email protected] http://stackingdwarves.net 2nd International Symposium on Ambisonics and Spherical Acoustics – IRCAM, Paris/France Ambisonic playback systems – Jörn Nettingsmeier <[email protected]> 1/62 So you are organizing a concert with contemporary electro-acoustic works? Great! Let's publish that call for music, and wait for contributions. 2nd International Symposium on Ambisonics and Spherical Acoustics – IRCAM, Paris/France Ambisonic playback systems – Jörn Nettingsmeier <[email protected]> 2/62 Hmm. This quadraphonic piece would fit right in! 2nd International Symposium on Ambisonics and Spherical Acoustics – IRCAM, Paris/France Ambisonic playback systems – Jörn Nettingsmeier <[email protected]> 3/62 Hmm. This quadraphonic piece would fit right in! TTThhhiiisss iiisss gggrrreeeaaattt,,, tttoooooo... OOOhhh,,, iiittt'''sss 555...111!!! 2nd International Symposium on Ambisonics and Spherical Acoustics – IRCAM, Paris/France Ambisonic playback systems – Jörn Nettingsmeier <[email protected]> 4/62 Hmm. This quadraphonic piece would fit right in! TTThhhiiisss iiisss gggrrreeeaaattt,,, tttoooooo... OOOhhh,,, iiittt'''sss 555...111!!! We got to have this one. Oops – eight speakers at irregular angles and distances? 2nd International Symposium on Ambisonics and Spherical Acoustics – IRCAM, Paris/France Ambisonic playback systems – Jörn Nettingsmeier <[email protected]> 5/62 Hmm. This quadraphonic piece would fit right in! TTThhhiiisss iiisss gggrrreeeaaattt,,, tttoooooo... OOOhhh,,, iiittt'''sss 555...111!!! Whee! This one needs six speakers in a regular hexagon. We got to have this one. Oops – eight speakers at irregular angles? 2nd International Symposium on Ambisonics and Spherical Acoustics – IRCAM, Paris/France Ambisonic playback systems – Jörn Nettingsmeier <[email protected]> 6/62 Hmm. This quadraphonic piece would fit right in! TTThhhiiisss iiisss gggrrreeeaaattt,,, tttoooooo... OOOhhh,,, iiittt'''sss 555...111!!! Whee! This one needs six speakers in a regular hexagon. We got to have this one. Oops – Two speakers in the front, eight speakers and one in the back? Well... at irregular angles? 2nd International Symposium on Ambisonics and Spherical Acoustics – IRCAM, Paris/France Ambisonic playback systems – Jörn Nettingsmeier <[email protected]> 7/62 2nd International Symposium on Ambisonics and Spherical Acoustics – IRCAM, Paris/France Ambisonic playback systems – Jörn Nettingsmeier <[email protected]> 8/62 2nd International Symposium on Ambisonics and Spherical Acoustics – IRCAM, Paris/France Ambisonic playback systems – Jörn Nettingsmeier <[email protected]> 9/62 2nd International Symposium on Ambisonics and Spherical Acoustics – IRCAM, Paris/France Ambisonic playback systems – Jörn Nettingsmeier <[email protected]> 10/62