search for: pqevalaudio

Hi, I checked the ODG (Objective Difference Grade) scores for a few reference vectors using the PQEvalAudio Tool and found that some of them show ODG scores as high as -3.5 If we look at the range as described in the link below, it looks unacceptable. http://www-mmsp.ece.mcgill.ca/documents/Software/Packages/AFsp/PQevalAudio.html Am I missing something or are these scores valid? Thanks and Regards, Rh...

Hi Rhishi, PQevalaudio is very unreliable and buggy. I have compared to PEAQ and - as a result - now I am not using it anymore. With best regards, Christian Hoene Von: opus-bounces at xiph.org [mailto:opus-bounces at xiph.org] Im Auftrag von Rhishikesh Agashe Gesendet: Freitag, 4. Oktober 2013 12:35 An: o...

..., can you please suggest a reliable tool? Thanks, Rhishi From: Christian Hoene [mailto:christian.hoene at symonics.com] Sent: Friday, October 04, 2013 17:30 To: Rhishikesh Agashe; opus at xiph.org Cc: Rasmi Mishra Subject: AW: [opus] ODG (Objective Difference Grade) scores for Opus Encoder using PQEvalAudio Tool Hi Rhishi, PQevalaudio is very unreliable and buggy. I have compared to PEAQ and - as a result - now I am not using it anymore. With best regards, Christian Hoene Von: opus-bounces at xiph.org<mailto:opus-bounces at xiph.org> [mailto:opus-bounces at xiph.org] Im Auftrag von Rhishik...

Hi, I'm working on porting libopus and I'd like to get information how to test Opus Encoder properly. There is information in RFC6716, that Opus Decoder's test files (http://opus-codec.org/testvectors/opus_testvectors.tar.gz) were created specifically to exercise all aspects of the decoder. Using these files, a custom implementation of libopus can be verified to be sure the Opus

...t; ??custom implementation of libopus in encoding mode ? > ?There is no test for the encoder because unlike the decoder, it is not > ?normatively specified and it keeps improving over time. The best way to > ?check your encoder for non-bit-exact numerical issues is to use a tool > ?like PQevalAudio: > ?http://www-mmsp.ece.mcgill.ca/documents/Downloads/PQevalAudio/ > > ?Cheers, > > ?????????Jean-Marc > ?_______________________________________________ > ?opus mailing list > ?opus at xiph.org > ?http://lists.xiph.org/mailman/listinfo/opus

...some steps to verify a > custom implementation of libopus in encoding mode ? There is no test for the encoder because unlike the decoder, it is not normatively specified and it keeps improving over time. The best way to check your encoder for non-bit-exact numerical issues is to use a tool like PQevalAudio: http://www-mmsp.ece.mcgill.ca/documents/Downloads/PQevalAudio/ Cheers, Jean-Marc

I have been trying some different sample rate and bitrate combinations to get a feel for how CELT behaves. I then encoded it with a couple of different frame sizes and sample rates. There were some small differences, but nothing horrible. So, I decided to run with 24KHz sample rate with 16 bit samples. This seemed like a reasonable tradeoff against the quality degradation that my folks