Teenage Engineering PO-33 Pocket Operator KO Sampler/Sequencer Kit Maker

KnockOutKitMaker.bat

@ECHO ON
cd %~dp0
set /a missing=F
if "%~2" == "" (
	set missing=T
) else (
	if "%~1" == "" ( set missing=T )
)
if "%missing%" == "T" (
	echo At least two input files must be specified.
	@PAUSE
	exit /b
)
if not exist ffmpeg.exe (
	echo ffmpeg.exe not found!
	@PAUSE
	exit /b
)
if not exist KnockOutKitMaker-SILENCE.wav (
	ffmpeg -f lavfi -i anullsrc=channel_layout=stereo:sample_rate=44100 -acodec pcm_s16le -ar 44100 -ac 2 -t 0.2 KnockOutKitMaker-SILENCE.wav
	if %ERRORLEVEL% neq 0 (
		echo ffmpeg.exe quit while making "KnockOutKitMaker-SILENCE.wav" with error code %ERRORLEVEL%
		@PAUSE
		exit /b
	)
)
if exist KnockOutKitMaker.txt del KnockOutKitMaker.txt
set number=0
goto skip
:again
echo file 'KnockOutKitMaker-SILENCE.wav'>>KnockOutKitMaker.txt
:skip
echo file 'KnockOutKitMaker%number%.wav'>>KnockOutKitMaker.txt
if exist KnockOutKitMaker%number%.wav del KnockOutKitMaker%number%.wav
rem ffmpeg -i "%~1" -filter:a loudnorm=print_format=summary:linear=true:dual_mono=true -acodec pcm_s16le -ar 44100 -ac 2 KnockOutKitMaker%number%.wav
ffmpeg -i "%~1" -acodec pcm_s16le -ar 44100 -ac 2 KnockOutKitMaker%number%.wav
if %ERRORLEVEL% neq 0 (
	echo ffmpeg.exe quit while processing "%~1" with error code %ERRORLEVEL%
	@PAUSE
	exit /b
)
set /a number = number + 1
shift
if "%~1" neq "" goto again
if exist KnockOutKitMaker.flac del KnockOutKitMaker.flac
ffmpeg -f concat -safe 0 -i KnockOutKitMaker.txt KnockOutKitMaker.flac
if %ERRORLEVEL% neq 0 (
	echo ffmpeg.exe quit while making "KnockOutKitMaker.flac" error code %ERRORLEVEL%
	@PAUSE
	exit /b
)
del KnockOutKitMaker-SILENCE.wav
for /L %%i in (0, 1, %number%) do del KnockOutKitMaker%%i.wav
del KnockOutKitMaker.txt
if exist ffplay.exe ffplay -autoexit KnockOutKitMaker.flac
@PAUSE

I'm thinking I'm probably never going to buy another Teenage Engineering product again, since they intentionally cripple their devices like this.

In the YouTube videos, it's like, "oh yeah, check out my custom drumkit: BOOM, CLICK, CLAP, BANG, CRASH, ZIP, PING. And now it's on the Knockout!" They immediately press buttons to get the same sounds back out.

In real life, that crap never works and based on numerous tests, there is no way to make that work reliably.

I feel like I should get into the market myself by making an open source device that actually does what the Knockout claims it does in the same <$100 range. But I'm not a hardware guy: I'm a software guy.