[FFmpeg-user] Help with extracting audio from MP4

[Carl Eugen Hoyos]

2017-01-19 7:18 GMT+01:00 Peter <peter777 at users.sourceforge.net>:
> On Thursday, 19 January 2017 6:15:01 AM AEDT Carl Eugen Hoyos wrote:
>> 2017-01-19 5:40 GMT+01:00 Peter <peter777 at users.sourceforge.net>:
>> > If I simply supply an output filename, it results in the codec of
>> > MPEG Audio Layer 1
>>
>> That's impossible, no layer 1 encoder exists for FFmpeg.
>
> The line must have benn cutoff in your viewer, .. the line was ..

(No.)

> If I simply supply an output filename, it results in the codec of MPEG
> Audio Layer 1/2(mpga), sample rate: 48000 Hz and bitrate: 64 kb/s

Just to clarify: FFmpeg is not able to encode to MPEG Layer 1 audio.

Carl Eugen