Batch extract audio

[Aludin]

How do I make FFMPEG extract audio out of all clips in a folder? The following failed

for %%i do "M:\ffmpeg.exe" -i "%%1" -acodec pcm_s16le "M:\%%~ni.wav"

Thanks.

[sneaker]

for "%%i"

but

-i "%%1"

.
Should both be the same letter.

If it still fails post complete ffmpeg log/terminal output.

[Aludin]

Good catch, but

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation.  All rights reserved.

C:\Users\Admin>N:

N:\>for %%i do "M:\ffmpeg.exe" -i "%%i" -acodec pcm_s16le "M:\%%~ni.wav"
%%i was unexpected at this time.

N:\>

[sneaker]

If you type directly into terminal instead of running a .bat file you need to use single % instead of double %%.

[Aludin]

Well I have to use it in a terminal otherwise the window will close. Either way, with single % it complained "do" was not expected.

[sneaker]

You need something like

for %i in (*.mkv) do "M:\ffmpeg.exe" -i "%~i" -acodec pcm_s16le "M:\%~ni.wav"

(.mkv extension)

for %i in (*.*) do "M:\ffmpeg.exe" -i "%~i" -acodec pcm_s16le "M:\%~ni.wav"

(Any file extension)


https://docs.microsoft.com/en-us/windows-server/administration/windows-commands/for

[Aludin]

Thanks mang. I didn't realize in was needed if I already cd'd to the directory which means this would've worked the first time if I just used it inside the .bat.