Audio subsystem for computer-based conferencing system

  • US 5,434,913 A
  • Filed: 11/24/1993
  • Issued: 07/18/1995
  • Est. Priority Date: 11/24/1993
  • Status: Expired due to Term
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First Claim
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1. An audio subsystem for a computer conferencing system having a general-purpose host processor, comprising:

  • (a) a capture thread for;

    (1) receiving local audio signals;

    (2) compressing the local audio signals to generate local compressed audio signals; and

    (3) passing the local compressed audio signals to a communications subsystem of the computer conferencing system for transmission over a communications link to a remote computer conferencing system; and

    (b) a playback thread for;

    (1) receiving remote compressed audio signals from the communications subsystem, the remote compressed audio signals having been transmitted by the remote computer conferencing system over the communications link; and

    (2) decompressing the remote compressed audio signals to generate remote decompressed audio signals for local playback, wherein the capture thread is separate from the playback thread, wherein;

    the capture thread and the playback thread are executed by a digital signal processor of the computer conferencing system;

    wherein the host processor controls the execution of the capture thread and the playback thread.

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