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#1 2017-11-05 18:30:58

epinephrine
Member
From: Frankfurt
Registered: 2012-10-18
Posts: 92

PulseAudio module to invert phase of one stereo channel

Hi,

Is there a PA module to change/swap polarity/phase of _only one_ stereo channel? Like here?
I wanna check something with my headphones...

Last edited by epinephrine (2017-11-05 23:15:37)

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#2 2017-11-05 22:00:03

kokoko3k
Member
Registered: 2008-11-14
Posts: 2,390

Re: PulseAudio module to invert phase of one stereo channel

Maybe through module-ladspa-sink ?


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#3 2017-11-05 23:19:04

epinephrine
Member
From: Frankfurt
Registered: 2012-10-18
Posts: 92

Re: PulseAudio module to invert phase of one stereo channel

Thanks, looks like LADSPA has an inverter module. Now I just need to figure out how to redirect only one channel through the ladspa sink and then combine the channels back again...

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#4 2017-11-06 12:40:25

kokoko3k
Member
Registered: 2008-11-14
Posts: 2,390

Re: PulseAudio module to invert phase of one stereo channel

Not tested, but try, from: aur/calf-ladspa, the plugin "stereo tools" (http://calf-studio-gear.org/)
I suggest you to try with the gui first and then copy the settings to the ladspa filter, it should be easier.

And... if you manage to make it work, please share your findings with the "tweak" you're trying to implement, i'm interested too!

PS: is that supposed to work with headphones only or loudspeakers work too?


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