Displaying 6 results from an estimated 6 matches for "circletech".
2009 Nov 23
2
RFC 5574 and multiple frames
Hello all,
I am experimenting with Speex in a mobile VoIP application, and it seems
that it is worth stuffing more than one codec frame into a single RTP
packet; mainly, that sending several frames per packet relieves the
underlying network socket connection, which is notoriously problematic
in mobile devices.
RFC 5574 defines the exact way how to put multiple Speex frames into a
single RTP
2009 Nov 23
0
RFC 5574 and multiple frames
Hi,
The Speex bit-packer already does everything you need. Just call speex_encode()
multiple times to encode multiple frames and call speex_decode() multiple times
to decode these frames.
Jean-Marc
Quoting Marian Kechlibar <marian.kechlibar at circletech.net>:
> Hello all,
>
> I am experimenting with Speex in a mobile VoIP application, and it seems
> that it is worth stuffing more than one codec frame into a single RTP
> packet; mainly, that sending several frames per packet relieves the
> underlying network socket connection,...
2010 Feb 01
1
Release of Speex?
Hello,
just a question: Speex is in 1.2 beta 1 for some years. Is there any
plan to finalize the 1.2 edition? Are there any planned improvements?
Best regards
Marian
2006 Jan 27
3
Speex at ARM Devices (Symbian OS)
Hello,
I am from a small Czech software company (circletech.net) working on
software for mobile phones. We are currently starting a development of an
Voice IP software, and consider using speex for voice compression and
decompression. The software will be Symbian OS C++ program.
Is there anyone who has actually used speex Symbian OS port for realtime
voice...
2009 Feb 13
1
"More than two wideband layers found. The stream is corrupted." problem
Dear Speex developers,
I am currently experimenting with Speex on Symbian smartphones.
I have compiled the Speex library, and I am now using it in the
following way:
1. Record 320-byte buffers of data in PCM16 format, 8000 Hz sampling rate.
2. Feed the resulting buffer to an instance of a narrowband Speex encoder.
3. Send the encoded data over RTP.
4. Upon receiving on the other side, feed the
2009 Dec 02
0
The generic Jitter Buffer and its use
Hello all,
I am currently investigating the JitterBuffer struct provided in the
Speex library, and I am actually thinking about using it with two
different codecs: namely, Speex-NB and AMR-NB. From looking at the code,
it seems that JitterBuffer is capable of working for any codec. Both
Speex-NB and AMR-NB (and probably also other narrowband codecs) produce
20 ms frames and the sampling frequency