<br><div><span class="gmail_quote">On 29/08/2007, <b class="gmail_sendername">Melbourne Barton</b> <<a href="mailto:mbarton@research.telcordia.com">mbarton@research.telcordia.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div bgcolor="#ffffff" text="#000000">
The selected codec I am interested in (e.g., G.729D) <u>is not </u>in
RAT.<br>
I have the software code for this codec on my Windows machine.<br>
What can I do in this case?</div></blockquote><div><br>You would need to add the codec to RAT codec library, including a suitable RTP encapsulation (see RFC 3351). see the README files in the RAT directory:<br><a href="https://frostie.cs.ucl.ac.uk/nets/mmedia/browser/rat/trunk/README.files">
https://frostie.cs.ucl.ac.uk/nets/mmedia/browser/rat/trunk/README.files</a><br><br>Piers<br></div><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div bgcolor="#ffffff" text="#000000"><span class="sg">
Melbourne</span><div><span class="e" id="q_114b10f00800f894_2"><br>
<br>
Piers O'Hanlon wrote:
<blockquote type="cite">Yes RAT can playback and/or record PCM/WAV audio from a
file by selecting the file small floppy disk icon at the lower left of
the main window pane. This will be packetised by RAT according to the
selected codec in RAT.<br>
<br>
Piers<br>
<br>
<div><span class="gmail_quote">On 28/08/2007, <b class="gmail_sendername">Melbourne Barton</b> <<a href="mailto:mbarton@research.telcordia.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">
mbarton@research.telcordia.com</a>>
wrote:</span>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Hi,<br>
<br>
I am testing a set of voice codecs that are not in the RAT toolkit.<br>
The codec softwere are installed on my Windows machines (voice encoder<br>
on one PC, and voice decoder on another PC).<br>
Input to the encoder are speech files (in .wav or .raw format). The
<br>
digitized output of the encoder is stored in a file.<br>
<br>
Can I use RAT's RTP/UDP/IP capabilities to transmit the file to the<br>
remote Windows PC that has the voice decoder installed,<br>
to recover the decoded speech.
<br>
<br>
If RAT cannot be used, which other (preferably windows-based) tools are<br>
out there to build, transmit and recover RTP streams?<br>
<br>
Thanks,<br>
<br>
Melbourne<br>
<br>
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