[opus] ODG (Objective Difference Grade) scores for Opus Encoder using PQEvalAudio Tool

Rhishikesh Agashe
2013-10-04T12:01:40Z

In that case, 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 Rhishikesh Agashe
Gesendet: Freitag, 4. Oktober 2013 12:35
An: opus at xiph.org<mailto:opus at xiph.org>
Cc: Rasmi Mishra
Betreff: [opus] ODG (Objective Difference Grade) scores for Opus Encoder using
PQEvalAudio Tool

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,
Rhishi

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