Audio Class Decoder Released

Audio device class decoder (class code: 0x01) has been released with the latest version (v2.1.3) of USBTrace. Now you can analyze devices which belong to the audio class with ease. The decoder supports version 1.0 of the USB Audio class specification. Audio Control and Audio Streaming requests are captured, decoded and displayed by USBTrace.

The type of requests captured are :-

  • Audio Control Requests
    • Terminal Control Requests
    • Mixer Control Requests
    • Selector Unit Control Requests
    • Feature Unit Control Requests
    • Processing Unit Control Requests
    • Extension Unit Control Requests
  • Audio Streaming Requests
    • Interface Control Requests
    • Endpoint Control Requests
  • Additional Requests
    • Memory Requests
    • Status Requests

You can download a 15-day evaluation version of USBTrace, the USB Monitor software, from

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