Hello All, Does anybody know which spectral characteristics produce metallic sounds in the output of Noise Cancellation? I mean i am looking for the rrot cause of this problem. Thanks and Regards, Ravikiran N -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/speex-dev/attachments/20070416/380c9597/attachment.html
> Hello All, > Does anybody know which spectral characteristics produce metallic > soundsHigh amplitudes at high frequencies where there aren't supposed to be any.> in the output of Noise Cancellation? > I mean i am looking for the rrot cause of this problem.One cause of this is clipping; another cause is a not-quite-steep-enough low-pass filter (so you get low frequencies mirrored into high frequencies). Or both of these combined. Or it could be something totally different. You really have to do more analysis than just saying "metallic sounds" for anyone to really determine what's happening :-) Segher