[FFmpeg-user] tiny_psnr typical PSNR values

Roger Pack rogerdpack2 at gmail.com
Thu Aug 23 19:39:08 CEST 2012

> A colleague asked me for some tips on how to compare the quality of audio streams which have been subjected to errors due to network problems. I suggested using the tiny_psnr tool to compute the PSNR. On the ffmpeg-user maillinglist I noticed an e-mail by Benjamin indicating that a PSNR above 80dB would indicate acceptable quality for some codecs being introducing into FFmpeg. The values I'm getting are _much_ lower though (in the range of 20 to 30 dB). I tried using both the files with WAV headers and files containing just the samples to be sure it wasn't a header problem.

So your question is if the 80dB indicated is really acceptable/good quality?

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