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<DIV><SPAN class=121275408-16072010><FONT face="ＭＳ Ｐゴシック" color=#0000ff
size=2>Dear Mr.Schwarz,</FONT></SPAN></DIV>
<DIV><SPAN class=121275408-16072010><FONT face="ＭＳ Ｐゴシック" color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=121275408-16072010><FONT face="ＭＳ Ｐゴシック" color=#0000ff
size=2>Thank you for your quick response.</FONT></SPAN></DIV>
<DIV><SPAN class=121275408-16072010><FONT face="ＭＳ Ｐゴシック" color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=121275408-16072010><FONT face="ＭＳ Ｐゴシック" color=#0000ff
size=2>The reference C source code outputs encoded data without
packing.</FONT></SPAN></DIV>
<DIV><SPAN class=121275408-16072010><FONT face="ＭＳ Ｐゴシック" color=#0000ff size=2>I
don't think this issue is caused by encapsulation procedure.</FONT></SPAN></DIV>
<DIV><SPAN class=121275408-16072010></SPAN><SPAN class=121275408-16072010><FONT
face="ＭＳ Ｐゴシック" color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=121275408-16072010><FONT face="ＭＳ Ｐゴシック" color=#0000ff
size=2>Best regards,</FONT></SPAN></DIV>
<DIV><SPAN class=121275408-16072010><FONT face="ＭＳ Ｐゴシック" color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=121275408-16072010><FONT face="ＭＳ Ｐゴシック" color=#0000ff
size=2>Tetsuya Yamamoto</FONT></SPAN></DIV>
<DIV><BR></DIV>
<DIV class=OutlookMessageHeader lang=ja dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> Schwarz, Albrecht (Albrecht)
[mailto:albrecht.schwarz@alcatel-lucent.com] <BR><B>Sent:</B> Friday, July 16,
2010 4:13 PM<BR><B>To:</B> Yamamoto, Tetsuya;
itu-sg16@lists.packetizer.com<BR><B>Subject:</B> RE: Question on
G.726<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV dir=ltr align=left><FONT face="Trebuchet MS" color=#800000 size=2><SPAN
class=328511007-16072010>[just to exclude the possibilty of the "right
bitorder", there are two encapsulation schemes arround, see e.g. recent
discussion in AVT</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT color=#800000><A
href="http://www.ietf.org/mail-archive/web/avt/current/msg13166.html"
name=13166>G.726 payload bitorder (RFC 3551) in current implementations</A><FONT
color=#000000>,</FONT></FONT></DIV>
<DIV dir=ltr align=left><FONT face="Trebuchet MS" color=#800000 size=2><A
href="http://www.ietf.org/mail-archive/web/avt/current/msg13166.html">http://www.ietf.org/mail-archive/web/avt/current/msg13166.html</A></FONT></DIV>
<DIV dir=ltr align=left><FONT face="Trebuchet MS" color=#800000 size=2><SPAN
class=328511007-16072010>]</SPAN></FONT></DIV><BR>
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style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #800000 2px solid; MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> itu-sg16-bounces@lists.packetizer.com
[mailto:itu-sg16-bounces@lists.packetizer.com] <B>On Behalf Of </B>Yamamoto,
Tetsuya<BR><B>Sent:</B> Freitag, 16. Juli 2010 08:46<BR><B>To:</B>
itu-sg16@lists.packetizer.com<BR><B>Subject:</B> [itu-sg16] Question on
G.726<BR></FONT><BR></DIV>
<DIV></DIV><FONT face="Arial, sans-serif" size=2>
<DIV>Dear Q10/16 Experts,</DIV>
<DIV> </DIV>
<DIV>Sorry to bother you.</DIV>
<DIV> </DIV>
<DIV>We have found unexpected results when using G.726.</DIV>
<DIV>When particular waveform audio data are input to G.726 encoder, the
decoded data from G.726 decoder</DIV>
<DIV>include large amplitude impulses.</DIV>
<DIV>We can reproduce the same phenomena at any of 16, 24, 32 or 40kbps
bitrate when we put sine wave signal</DIV>
<DIV>with very low frequency such as 1Hz or 2Hz into G.726 codec.</DIV>
<DIV> </DIV>
<DIV>Our codec module is generated from the C source code provided by G.191
software tools as is</DIV>
<DIV>and the all test sequences provided by G.726 Appendix II are passed with
this module.</DIV>
<DIV> </DIV>
<DIV>It would be appreciated if anyone could give me some suggestions
regarding this matter.</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>Thanks and best regards,</DIV>
<DIV> </DIV>
<DIV>Tetsuya Yamamoto</DIV>
<DIV>Sony Corporation</DIV>
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face="ＭＳ Ｐゴシック, monospace"></FONT> </DIV></BLOCKQUOTE></FONT></BODY></HTML>