Thanks Nanang, I will try that and let you know. Thanks again for your response. -Senthil. ----- Original Message ---- From: Nanang Izzuddin <nanang@xxxxxxxxx> To: pjsip list <pjsip at lists.pjsip.org> Sent: Tuesday, April 8, 2008 1:09:12 AM Subject: Re: pjsip confsample does not work Hi Senthil, To record mono using recfile sample application, you need to change the macro configuration in the recfile.c and rebuild it: ------------------------- /* Configs */ #define CLOCK_RATE 44100 #define NCHANNELS 2 #define SAMPLES_PER_FRAME (NCHANNELS * (CLOCK_RATE * 10 / 1000)) #define BITS_PER_SAMPLE 16 ------------------------- setting the NCHANNELS to 1 should do. Regards, Nanang On 08/04/2008, Senthil Raja <vsraja at yahoo.com> wrote:Thanks Daniel! I guess my file is of type stereo. I downloaded a file from the web with mono type and it worked fine. I also tried your suggestion of setting channel as 2, it worked! but the voice quality was very bad. Now I have to see how I could record a a mono wav file. Regards, Senthil. ----- Original Message ---- From: Daniel Mikusa <dan@xxxxxxxxxx> To: pjsip list <pjsip at lists.pjsip.org> Sent: Sunday, April 6, 2008 11:52:35 AM Subject: Re: pjsip confsample does not work By default the sound files for that example need to be mono. Yours is stereo. Try using the -c option to set the number of channels to two. Dan macbook-pro:samples daniel$ ./confsample-i386-apple-darwin9.2.0 -h 14:49:44.601 os_core_unix.c pjlib 0.8.0-trunk for POSIX initialized 14:49:44.602 confsample.c Error: unknown options 'h' FILE: confsample.c PURPOSE: Demonstrate how to use conference bridge. USAGE: confsample [options] [file1.wav] [file2.wav] ... options: -d, --dev=NUM Sound device use device id NUM (default=-1) -r, --rate=HZ Set clock rate in samples per sec (default=44100) -c, --channel=NUM Set # of channels (default=1 for mono). -f, --frame=NUM Set # of samples per frame (default equival 20ms) -b, --bit=NUM Set # of bits per sample (default=16) fileN.wav are optional WAV files to be connected to the conference bridge. The WAV files MUST have single channel (mono) and 16 bit PCM samples. It can have arbitrary sampling rate. DESCRIPTION: Here we create a conference bridge, with at least one port (port zero is always created for the sound device). If WAV files are specified, the WAV file player ports will be connected to slot starting from number one in the bridge. The WAV files can have arbitrary sampling rate; the bridge will convert it to its clock rate. However, the files MUST have a single audio channel only (i.e. mono). On Apr 6, 2008, at 4:28 AM, Senthil Raja wrote: -- This message has been scanned for viruses and dangerous content byMailScanner, and is believed to be clean. Hi, I tried to execute "confsample" from the pjsip samples and got the following error (see below). Could some one explain what this error means. FYI, the ininput file "welcome.wav" was created using "recfile" sample. Thanks, Senthil. ../pjproject-0.8.0/pjsip-apps/bin/samples/confsample-i686-pc-linux-gnu welcome.wav 16:42:21.441 os_core_unix.c pjlib 0.8.0 for POSIX initialized 16:42:21.462 pasound.c PortAudio sound library initialized, status=0 16:42:21.469 pasound.c PortAudio host api count=1 16:42:21.485 pasound.c Sound device count=1 16:42:21.504 pjlib select() I/O Queue created (0x809121c) 16:42:21.518 conference.c Creating conference bridge with 3 ports 16:42:21.593 pasound.c Opened device /dev/dsp(OSS)//dev/dsp(OSS) for recording and playback, sample rate=44100, ch=1, bits=16, 882 samples per frame, input latency=23 ms, output latency=23 ms 16:42:21.599 pasound.c Starting /dev/dsp stream.. 16:42:21.688 pasound.c Recorder thread started 16:42:21.691 os_core_unix.c Info: possibly re-registering existing thread 16:42:21.699 pasound.c Player thread started 16:42:21.706 pasound.c Done, status=0 16:42:21.708 conference.c Sound device successfully created for port 0 16:42:21.710 wav_writer.c File writer 'confrecord.wav' created: samp.rate=44100, bufsize=4KB 16:42:21.718 wav_player.c File player 'welcome.wav' created: samp.rate=44100, ch=2, bufsize=4KB, filesize=1188KB confsample-i686-pc-linux-gnu: ../src/pjmedia/conference.c:678: pjmedia_conf_add_port: Assertion `!"Number of channels mismatch"' failed. Aborted You rock. That's why Blockbuster's offering you one month of Blockbuster Total Access, No Cost. -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. _______________________________________________ Visit our blog: http://blog.pjsip.org pjsip mailing list pjsip at lists.pjsip.org http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org You rock. That's why Blockbuster's offering you one month of Blockbuster Total Access, No Cost. _______________________________________________ Visit our blog: http://blog.pjsip.org pjsip mailing list pjsip at lists.pjsip.org http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org ____________________________________________________________________________________ You rock. 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