AES Section Meeting Reports

Japan - September 13, 2011

Meeting Topic: Sound field recording and reproduction technique using super-multichannel signal processing with high speed 1-bit signal

Moderator Name: Kazuma HOSHI

Speaker Name: Shigeto TAKEOKA

Meeting Location: College of Science and Technology, Nihon University, Japan

Summary

Recording and reproduction of sound field, which has three-dimensional information, with reality is very difficult and still has many problems. Assoc. Prof. Shigeto Takeoka has been researching about applications of 1-bit signal for super-multichannel control system, utilizing its good affinity with analog signalwhich is one of the advantages of 1-bit signal.
In this meeting, he introduced following topics with demonstrations: recording of cultural sound heritage using 8-channel mobile semiconductor recorder, directivity controllable ultrasonic sound loudspeaker with 576-channel individually controlled transducers, and 1024-channel 1-bit microphone array.

Written By: Kazuma HOSHI

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