Hermann Weber
2013-May-13 11:24 UTC
[opus] Quality difference between opus_demo.exe and opusenc.exe
Hello! I encoded a voice file (48kHz) with opusbin\opusenc.exe with the standard settings and decoded it. The output was amazing. I could not hear any loss at all. Then i encoded the same file with opus_demo.exe and standard settings and then decoded it. The output had a sizzling noise, even when I used full bandwidth. I think I have played around with any of the settings in opus_demo.exe, but I just can not get these amazing results as with opusbin\opusenc.exe. What may I have missed? Thank you. Hermann
Hermann Weber
2013-May-13 17:22 UTC
[opus] Quality difference between opus_demo.exe and opusenc.exe
Does nobody have any clue about the worse quality in opus_demo.exe vs. opusenc.exe??? Am 13.05.2013 13:24, schrieb Hermann Weber:> Hello! > > I encoded a voice file (48kHz) with opusbin\opusenc.exe with the > standard settings and decoded it. > The output was amazing. I could not hear any loss at all. > > Then i encoded the same file with opus_demo.exe and standard settings > and then decoded it. > The output had a sizzling noise, even when I used full bandwidth. > > I think I have played around with any of the settings in opus_demo.exe, > but I just can not get these amazing results as with opusbin\opusenc.exe. > > What may I have missed? > > Thank you. > > Hermann > _______________________________________________ > opus mailing list > opus at xiph.org > http://lists.xiph.org/mailman/listinfo/opus >
Gregory Maxwell
2013-May-13 17:46 UTC
[opus] Quality difference between opus_demo.exe and opusenc.exe
On Mon, May 13, 2013 at 4:24 AM, Hermann Weber <hermie.weber at gmx.de> wrote:> Hello! > > I encoded a voice file (48kHz) with opusbin\opusenc.exe with the > standard settings and decoded it. > The output was amazing. I could not hear any loss at all. > > Then i encoded the same file with opus_demo.exe and standard settings > and then decoded it. > The output had a sizzling noise, even when I used full bandwidth.Opus_demo does not read and write wav files, it reads and write little endian raw 16 bit pcm data. It's very easy to get the raw format settings wrong and get buzzing output like you describe. Without more information I cannot offer more advice. Opus demo is a testing tool for development and not an end user application.