History and current state of the war between the two main approaches to surround sound: discrete speaker feeds versus hierarchical matrix

40th AES Conference - Tokyo, 8-10 October 2010

The ORF seminar

8 Recording techniques:

• A: Stereo + C + Hamasaki square

• B: Decca-Tree + Hamasaki square

• C: OCT + Hamasaki-Square

• INA 5

• Schoeps KFM 360

• OCT Surround

• Soundfield MKV + Processor SP451