[FFmpeg-user] triming an audio wavfile
pantherlong at gmail.com
Tue May 25 13:36:50 EEST 2021
mohg729a is just the name of the file. I didn't show any name with g729b
btw. Nevertheless, that is just the name. Nothing to do with the format,
codec, etc.. It's a g729 audio wavfile that plays while on hold. I just
wanted to trim it because it's too long.
This is a proprietary music audio file that can't be sent to you
On Mon, May 24, 2021 at 11:35 PM Carl Zwanzig <cpz at tuunq.com> wrote:
> Please learn what top-posting is and stop doing it on this list.
> On 5/24/2021 6:40 PM, pink panther wrote:
> > I tried it with the double quotes and got the following. Same out I got
> > using the other statements I got from the other links
> > C:\ffmpeg>ffmpeg -i "Mohg729.wav" -ss 00:00:00.00 -t 00:01:00.00 -c:a
> > "Mohg729a.wav"
> > ffmpeg version N-101626-gc5341d415c Copyright (c) 2000-2021 the FFmpeg
> > developers
> > [wav @ 00000215e03f4580] Estimating duration from bitrate, this may be
> > inaccurate
> > [wav @ 00000215e03f4580] Could not find codec parameters for stream 0
> > (Audio: none (3 / 0x0133), 8000 Hz, 1 channels, 8 kb/s): unknown
> > codec
> > Consider increasing the value for the 'analyzeduration' (0) and
> > (5000000) options
> Well... there's a problem- ffmpeg can't figure out the input codec*. Did
> file extension come as .wav or was it changed from something else? A quick
> google search (took me a minute) suggests that you may need to insert "-f
> g729" before the "-i". Also, that g729b isn't supported at all.
> Please verify whether that file is raw g729 or g729 in a wav container
> (can that even work?). Also that it's really g279.
> *this is why the command output should always be included
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