[pulseaudio-discuss] module-sine for generating two independent sine wave signals on the left and right output of a sound device

[Georg Chini]

On 11.11.2017 13:29, S.C.T.N Gmbh wrote:
>
> Perfect, it works. Thank you a lot.
>
> Only one problem remains: I don’t know how to stop the two 
> modules-sine independently:
>
> I use:
>
> To define the left channel:
> pactl load-module module-remap-sink sink_name=left_mono 
> master=alsa_output.platform-soc_audio.analog-stereo channels=1 
> master_channel_map=front-left channel_map=front-left remix=no
>
> 24
>
> To define the right channel:
>
> pactl load-module module-remap-sink sink_name=right_mono 
> master=alsa_output.platform-soc_audio.analog-stereo channels=1 
> master_channel_map=front-right channel_map=front-right remix=no
>
> 25
>
> To start sine on the left:
> pactl load-module module-sine sink=left_mono frequency=921
>
> 26
>
> To start sine on the right:
>
> pactl load-module module-sine sink=right_mono frequency=821
>
> 27
>
> I dont know how to stop one of the module-sine while leaving the other 
> one on.
>
> The CLI says to specify a module index or a module name. I suppose the 
> index ist he number that is displayed after entering the command? (In 
> the above example 26,27)
>
> But when I use e.g.
>
> Pactl unload-module
>
> Both channels are stopped.
>
>
>
>

I added the list again. Yes, using the module index like "pactl 
unload-module 26" should unload
only the single sine module. If you use the name, all instances of the 
module are unloaded.
Doesn't that work for you? That would be a bug.
You can also see the module index with "pactl list modules short".

>
>
>
> *Von:*Georg Chini [mailto:georg at chini.tk]
> *Gesendet:* Samstag, 11. November 2017 12:32
> *An:* General PulseAudio Discussion; S.C.T.N Gmbh
> *Betreff:* Re: [pulseaudio-discuss] module-sine for generating two 
> independent sine wave signals on the left and right output of a sound 
> device
>
> On 11.11.2017 09:50, S.C.T.N Gmbh wrote:
>
>     I want to use MODULE-SINE to produce two independent sine wave
>     signals with different frequencies on the left and right output of
>     a sound card:
>
>     By using :
>
>     pactl load-module module-sine frequency=1000
>
>     I get of course the same 1000Hz signal on both channels and
>
>     pactl unload-module module-sine stops both of them.
>
>     So the question is whether there is a configuration to start and
>     stop left and right channel independently and to run them with
>     different frequencies?
>
>     Thank you in advance
>
>     Sporex
>
> You can use module-remap-sink to create independent sinks for each 
> channel.
> Then you can use module-sine on the remapped sinks.
>
> Regards
>              Georg
>

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