<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">Hi Jean-Marc, </div><div class=""><br class=""></div><div class="">Sorry for late reply, thanks for interest. It's quality good for 10ms/audio, poorer for 20ms/audio. Quality equivalent for 10,20ms for mode=voip. PESQ was the tool that alerted me to something of interest, but I don't trust PESQ to almost any degree! It's good for hearing relative differences, of course, but not absolutes. Bitrate here was 28kbps, but I hear same thing at 32kbps.</div><div class=""><br class=""></div><div class="">Please find attached a zip file with the audio files, converted to .wavs for simpler listening. Here is a cat of the README.txt. Thanks very much!</div><div class=""><br class=""></div><div class=""></div></body></html>