[vorbis-dev] How many MIPS for Vorbis Decoder?

Dominik Kuhlen
Fri, 19 Mar 2004 08:54:55 -0000

On Friday 19 March 2004 16:55, Jens Prüfer wrote:
> Hello,
>
> I may be stupid, but I cannot find any data on how "expensive"
the Vorbis
> Decoder is. Looking for an embedded solution I am interested in how many
> "MIPS" you need to decode a MONO audio stream at reasonable
quality (44
> kHz, approx. 100 kbps?)
>
> Can it be done in a microcontroller, or do I need ultra-expensive DSPs to
> do it?
A Sharp Zaurus with a 206MHz STRONG ARM SA1100 processor
has about 25% CPU load while decoding a vorbis Stereo stream at160kBit/s.
And about 22% at 64kBit/s.
This has been measured with the default Tremor library (XMMS decoder plugin).

Dominik