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I am using SoX.

A-Law, 8000 Hz, 64 Kbps, mono

Is the format I need

What I tried:

input -c 1 -r 8000 output

It is not working for me, please advise.

I get the file output, it's just not the right format.

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input -c 1 -r 8000 -e a-law output

about 64 Kbps, now search command

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Welcome Alli Storm. Please expand your answer explaining what the options do, it should be useful for a more wide audience. – Hastur Mar 17 '15 at 8:01

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