最終更新:2025-10-03 (金) 12:14:59 (313d)  

USB Audio Class
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USB Audio Class 3.0? (2016)

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2との違い

  • Dolby Processing Unit removed
  • Encoder and Decoder support removed
  • Copy protection (S/PDIF-style) removed
  • bmAttributes (MaxPacketsOnly? bit) field in class-specific isochronous endpoint descriptor removed
  • Type II and Extended Type II Audio Data Formats removed
  • New Power Domains
  • New Multi-Function Processing Unit
  • Additional Type III formats introduced
  • New Cluster descriptor
  • New Extended Terminal descriptor
  • New Connectors descriptor
  • Layout of all class-specific descriptors has changed
  • New class-specific String descriptors
  • New High Capability descriptors
  • Additional sources for interrupts
  • Provides for backward compatibility, using multiple Configuration descriptors
  • Support for LPM/L1
  • Mandated support for BADD on each ADC3.0 compliant device
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USB Audio Class 2.0 (2006/5/31)

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USB Audio Class 1.0 (1998/03/18)

  • USBのフルスピード(12Mbps)で動作するため、24bit/96kHzが上限
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Why do you need USB Audio Class 2?




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