[Speex-dev] Speex Codec Question

Janus.Wang at QMITW.COM Janus.Wang at QMITW.COM
Wed Jul 19 03:42:13 PDT 2006

Hi Jean-Marc,
We already decided to use Marvell's 88F8618 platform,
But I have few questions to you and listed it below,

Q1, Can we implement the Speex Codec on Marvell 8618 for non-HW DSP of platform?
Q2, Based on ARM9 CPU core, do you have any information to let me estimation the voice computing power for Speex codec?

Sorry to bother your job again....
Best Regards
Janus ( Freedom )
System Engineering / PLM
Quanta Microsystems, Inc.
TEL : +886 (3) 571-5996 # 5217
Mobile : +886 0953-499071
Mail : janus.wang at qmitw.com
MSN : freedom_janus at hotmail.com
SKYPE : freedom_janus

-----Original Message-----
From: Jean-Marc Valin [mailto:Jean-Marc.Valin at USherbrooke.ca] 
Sent: Saturday, June 03, 2006 7:40 PM
To: Janus Wang(王正宇)
Cc: speex-dev at xiph.org
Subject: Re: [Speex-dev] Speex Codec Question

> Q1, how much of MIPS we need to reserve the system computing power for
> Speex Codec needed?

It greatly depends on your chip. Some numbers I've had on the latest
version (svn) are about 30 MIPS on ADI Blackfin and about 40 MIPS for TI
C55x and C6x DSPs. That's at 15 kbps narrowband, complexity 1. Other
settings will change the complexity.

> Q2, do we need to use the voice DSP for Speex Codec needed?

Sorry, could you rephrase your question?


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