公开(公告)号：CA2132763A1

公开(公告)日：1996-03-24

申请号：CA2132763

申请日：1994-09-23

Applicant: IBM CANADA

Inventor： HELMS RICHARD M ,  MOOGK PETER G ,  HON STEPHEN ,  GAJEWSKI WITOLD ,  TAGLIONE JOHN V

IPC: H04S7/00 ,  G06F3/00 ,  G06F3/16 ,  H01S5/02 ,  H04S5/02 ,  G06F15/31

Abstract: A stereo computer system with resources to produce and record surround sound channels. Such surround sound channels are played or recorded using an audio card added to the computer system, which audio card controls additional speakers and/or microphones. Software for redirecting instructions from existing stereo application programs and sending these instructions to the existing audio device driver and the additional audio device driver is provided. Resources for processing the digital audio data for either extracting surround sound channels from two channel data provided by the application, or for encoding two sets of two channel audio data recorded by the two audio cards is also included.

公开(公告)号：CA2132763C

公开(公告)日：1999-03-30

申请号：CA2132763

申请日：1994-09-23

Applicant: IBM CANADA

Inventor： HELMS RICHARD M ,  MOOGK PETER G ,  HON STEPHEN ,  GAJEWSKI WITOLD ,  TAGLIONE JOHN V

IPC: H04S7/00 ,  G06F3/00 ,  G06F3/16 ,  H01S5/02 ,  H04S5/02

Abstract: An upgrade for a stereo enabled computer system which enables such a system to produce and record surround sound channels is disclosed. Such surround sound channels are played or recorded using an additional audio card, which controls additional speakers and/or microphones, which is added to the computer system. Software for redirecting instructions from existing stereo application programs and sending these instructions to the existing audio device driver and the additional audio device driver is provided. A means for processing the digital audio data for either extracting surround sound channels from two channel data provided by the application, or for encoding two sets of two channel audio data recorded by the two audio cards is also included.