Speex hardware

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Please list any experience/knowledge you've had with Speex on the following hardware, including model, minimum speed required for real-time or other observations. When providing benchmarks, please specify:

  • CPU speed
  • Speex version
  • Sampling rate (narrowband vs wideband)
  • Bit-rate
  • Complexity setting
  • Any other option that isn't the default
  • Compiler (and version)


  • SSE optimisations (intrinsics)


  • No Altivec support yet


  • Port with gcc inline assembly.


  • Port with gcc inline assembly.

TI C5x

  • Known to run

TI C6x

  • Known to run


  • Used by Rockbox


  • Someone did some optimisations for that but it never got fully merged.

Symbian phones model

Windows Mobile Phones

  • In order to make life easier for developer, let's also publish on which Pocket PC / Windows Mobile based phones speex works