Winamp, force mono output
29 09 2006
In the options menu open the preference windows (press Ctrl + P), on the left pane scroll down to DSP/Effect and select on the right pane Nullsoft Signal Processing Studio.
Click on the Configure Active Plugin button, click New, give a name to the preset , check Enable Processing and in the field Per Sample (or sample pair) write:
Save and close
If you need both channels on the right side
spl1=(spl0+spl1)/2;
spl0=0;
If you need both channels on the left side
spl0=(spl1+spl0)/2;
spl1=1;
Save and close





Thanks man, this is the only useful information on the subject I have found so far.
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If you want the same signal through both channels set it to this:
spl0=(spl0+spl1)/2;
spl1=spl0;
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Caleb Reply:
February 7th, 2013 at 7:41 am
I want the same signal through both channels. Thank you. I use this (spl0=(spl0+spl1)/2;
spl1=spl0;) because it is what I was looking for. Sometimes I’m irritated by stereo, monaural music feels more symetrical.
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that’s a great help, thanks!
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I don’t know about you guys, but the code did not work for me. Doing a little experimenting-&-testing I came up with a revised version of it, and it definitely works in my case.
(first, remember that “spl0″ & “spl1″ are: “SPL0″ & “SPL1″…NOT: “SP10″ & “SP11″–the LETTER ‘l’ is often confused with the NUMBER ’1′…[but the zero is always a zero])
ENTER THE FOLLOWING–character-by-character with no spaces & always ending each line with a semicolon:
spl0=spl0;
spl1=spl1;
mono=((spl0+spl1)/2);
spl1=mono;
spl0=mono;
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John Reply:
September 6th, 2010 at 3:02 am
Thank you!!
This worked, after fucking around for ages and many pages trying to find a proper solution to this problem you give me an answer!
Thanks =D
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Monk Reply:
June 9th, 2012 at 12:06 am
One more thing – this thing doesn’t work on MIDI-files. Nothing seems to work, not even the “force mono”. So if a MIDI-song has the bass on the left channel only, there’s no way to make it sound from both channels.. listening to something like that with earphones, argh.
Does anyone know any trick that would work with MIDI-files also?
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Great stuff mate. Worked like a charm and the images made it bullet proof!
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Try this:
Winamp : Preferences : Playback : Force Mono
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Thankssssssssssssssss!
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Winamp : Preferences : Playback : Force Mono
the simplest one.
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Francesco Reply:
May 1st, 2010 at 3:41 pm
Right, haven’t used winamp in a long time but few sub-versions ago that wasn’t an option so…
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the force mono one is not available in my winamp. but the other method works
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the ‘force mono’ option doesn’t works for me but this method works, Thanks
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Muchas gracias, me sirvió mucho.
Es que me quedé con un solo parlante bueno y necesitaba sonido en mono.
Saludos.
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Works like a charm !!!!
Thanks man
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Thank you for this useful information!
Sminster Dome’s example works beautifully – I wanted both channels to play the same signal, and now it finally does!
Why? Well.. try to play TFMX files with Winamp (there is a plugin for it) while using headphones to listen to it, and you will know.
Amiga has an ‘extreme stereo’, where half the channels exist on the left channel, and the other half on the right channel, so using headphones with Amiga music without some sort of forced mono is torture.
I know it has the ‘enable stereo blending’ option, but that only improves the situation slightly, it doesn’t completely do the trick. But the information on this page does – thank you all, especially Sminster Dome!
- Monk
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O tak pjn to kompletna porazka!
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exelente!!! resolveu a questao de deixar mono, o som das duas caixas saindo em uma só e voce ainda escolhendo em qual lado irá sair!
Greeeeat solve my problem with let the sound goes mono in only one soundbox
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Hello there! I know this is kinda off topic however I’d figured I’d ask.
Would you be interested in exchanging links or maybe guest writing a blog post or vice-versa?
My blog goes over a lot of the same subjects as yours and I think we could greatly benefit from
each other. If you are interested feel free to send me an e-mail.
I look forward to hearing from you! Wonderful blog by the way!
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GRACIASSSSSSSSS!!!! MUITO ABRIGADO!!!! THANKS!!!! DOMO-ARIGATO!!!
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