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</o:shapelayout></xml><![endif]--></head><body lang=DE link=blue vlink=purple><div class=WordSection1><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:1.2pt;line-height:14.4pt;background:white'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'><a href="http://www.itu.int/rec/R-REC-BS.1387/en"><span lang=EN-US style='color:#663366;text-decoration:none'>ITU-R Recommendation BS.1387</span></a></span><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>: Method for objective measurements of perceived audio quality (PEAQ)<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Von:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Rhishikesh Agashe [mailto:Rhishikesh.Agashe@imgtec.com] <br><b>Gesendet:</b> Freitag, 4. Oktober 2013 14:02<br><b>An:</b> Christian Hoene; opus@xiph.org<br><b>Cc:</b> Rasmi Mishra<br><b>Betreff:</b> RE: [opus] ODG (Objective Difference Grade) scores for Opus Encoder using PQEvalAudio Tool<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>In that case, can you please suggest a reliable tool?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Thanks,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Rhishi<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Christian Hoene [<a href="mailto:christian.hoene@symonics.com">mailto:christian.hoene@symonics.com</a>] <br><b>Sent:</b> Friday, October 04, 2013 17:30<br><b>To:</b> Rhishikesh Agashe; <a href="mailto:opus@xiph.org">opus@xiph.org</a><br><b>Cc:</b> Rasmi Mishra<br><b>Subject:</b> AW: [opus] ODG (Objective Difference Grade) scores for Opus Encoder using PQEvalAudio Tool<o:p></o:p></span></p></div></div><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Hi Rhishi,<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>PQevalaudio is very unreliable and buggy. I have compared to PEAQ and – as a result – now I am not using it anymore. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>With best regards,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Christian Hoene<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Von:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <a href="mailto:opus-bounces@xiph.org">opus-bounces@xiph.org</a> [<a href="mailto:opus-bounces@xiph.org">mailto:opus-bounces@xiph.org</a>] <b>Im Auftrag von </b>Rhishikesh Agashe<br><b>Gesendet:</b> Freitag, 4. Oktober 2013 12:35<br><b>An:</b> <a href="mailto:opus@xiph.org">opus@xiph.org</a><br><b>Cc:</b> Rasmi Mishra<br><b>Betreff:</b> [opus] ODG (Objective Difference Grade) scores for Opus Encoder using PQEvalAudio Tool<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-US>Hi,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>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<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>If we look at the range as described in the link below, it looks unacceptable.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><a href="http://www-mmsp.ece.mcgill.ca/documents/Software/Packages/AFsp/PQevalAudio.html">http://www-mmsp.ece.mcgill.ca/documents/Software/Packages/AFsp/PQevalAudio.html</a><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Am I missing something or are these scores valid?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Thanks and Regards,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Rhishi<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div></body></html>