Re: Lowest CPU utilization audio codec?
Jim Leonard <[email protected]>
| Newsgroups | gmane.comp.video.xine.codec.devel |
|---|---|
| Message-ID | <[email protected]> |
Mike Melanson wrote: > On Thu, 22 Jan 2004, Jim Leonard wrote: > > >>of how it works. I seem to recall that the quality was really great for >>speech but not so hot with music (which is common of most ADPCM, really). > > > Are you sure about this? I am not much of an audiophile, but much > of the ADPCM I have ever listened to sounds, well, not bad to my untrained > ears. I know voice codecs (vocoders), by contrast, and I know how bad they > can sound when you use them to compress general audio. There is audible distortion with IMA ADPCM (to me, at least). I tried the "Microsoft" implementation of ADPCM and, surprisingly, there was less distortion. Maybe the IMA tables are flawed in some way? Do a double-blind test of 22050Hz 16-bit ADPCM and the original raw PCM and you should be able to pick out the ADPCM more than 50% of the time. -- Jim Leonard ([email protected]) http://www.oldskool.org/ Want to help an ambitious games project? http://www.mobygames.com/ Or check out some trippy MindCandy at http://www.mindcandydvd.com/ ------------------------------------------------------- The SF.Net email is sponsored by EclipseCon 2004 Premiere Conference on Open Tools Development and Integration See the breadth of Eclipse activity. February 3-5 in Anaheim, CA. http://www.eclipsecon.org/osdn