Exporting separate channels using spccmd

[dakrk]

Having to manually click to mute and unmute each channel, and then saving with a different file name to export each channel as its own file can be annoying, so preferably there should be a way in spccmd to easily specify which channels should be played when exporting to WAV with the -cw option.
Then to output all channels as it's own file, you could just do a for /L from 1 to 8 in CMD.

[dgrfactory]

Hi, @dakrk
Thank you for reporting the new request.

https://github.com/dgrfactory/spcplay/releases/tag/2.19.4.7792
The -sm option to switch the channel to be muted separately and the -gm option to retrieve the current mute setting have been added to spccmd.
By using the -sm option immediately before the -cw option, it would be possible to output only the sound of the desired channel.

-sm option is used as follows.

REM Mute only channel 1
spccmd -sm 1

REM Mute channel 1, 2, and 3
spccmd -sm 123

REM Mute all exclude channel 1
spccmd -sm 1 --rev

The following batch shows an example of obtaining output-<ch>.spc, where each channel is separated from input.spc.

FOR /f "DELIMS=" %%A IN ('spccmd -gm --ch') DO SET MUTE=%%A
FOR %%I IN (1 2 3 4 5 6 7 8) DO (
  spccmd -sm %%I --rev --quiet
  spccmd -cw input.spc output-%%I.wav
)
spccmd -sm %MUTE% --quiet

By the way, the first blank adjustment is not performed when even a channel is muted, in other words, the WAVBLANK setting in spcplay.ini is ignored now.

[dakrk]

It works, thank you!