On Tue, Sep 13, 2011 at 6:47 PM, Matthew J. Roth <[email protected]> wrote: > Kaushal, > > Your version of SoX does not have MP3 support. Since you have LAME > installed, use it as a first step to produce an intermediate file > that SoX supports. Then use SoX to convert the intermediate file > to the desired format. > > Step 1 > ------ > > # lame --decode obd-demo.mp3 obd-demo.wav > input: obd-demo.mp3 (8 kHz, 1 channel, MPEG-2.5 Layer III) > output: obd-demo.wav (16 bit, Microsoft WAVE) > skipping initial 1105 samples (encoder+decoder delay) > Frame# 16818/16818 16 kbps > # file obd-demo.wav > obd-demo.wav: RIFF (little-endian) data, WAVE audio, Microsoft PCM, 16 bit, > mono 8000 Hz > > > Step 2 > ------ > > # sox -V obd-demo.wav -r 8000 -b -t ul -c 1 obd-demo.ulaw > sox: Detected file format type: wav > > sox: WAV Chunk fmt > sox: WAV Chunk data > sox: Reading Wave file: Microsoft PCM format, 1 channel, 8000 samp/sec > sox: 16000 byte/sec, 2 block align, 16 bits/samp, 19372126 data bytes > sox: 9686063 Samps/chans > sox: Input file obd-demo.wav: using sample rate 8000 > size shorts, encoding signed (2's complement), 1 channel > sox: Output file obd-demo.ulaw: using sample rate 8000 > size bytes, encoding u-law, 1 channel > sox: Output file: comment "Processed by SoX" > > > Regards, > > Matthew Roth
Thanks Matthew Roth. It worked. Also please let me know the difference between .ulaw and .alaw format and is there a way i can play this file formats. Regards Kaushal -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
