On Wed, 14 Sep 2011, Kaushal Shriyan wrote:

I have carried out the below steps

[root@host0040 test]# sox -V obd-demo.wav -r 8000 -b -t ul -c 1 obd-demo.alaw

sox: Output file obd-demo.alaw: using sample rate 8000
        size bytes, encoding u-law, 1 channel

Sox v14.x complains about the '-b.'

You are encoding as u-law, but naming the file alaw. Since [a|u]law are 'headerless' file formats, this will probably confuse Asterisk.

-rwxr-xr-x 1 root root  741459 Sep 14 06:32 obd-demo.mp3
-rw-r--r-- 1 root root 2041482 Sep 14 06:32 obd-demo.wav
-rw-r--r-- 1 root root  185165 Sep 14 06:32 obd-demo.alaw

Am i doing it correctly ? Please comment

I've never used alaw (I'm in the US).

I don't think an MP3 needs 'execute' permissions :)

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