<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 12 (filtered medium)"><style></style></head><body bgcolor=white lang=DE link=blue vlink=purple><div class=WordSection1>Yes I can confirm that: Pactl unload-module <index> stops the sine output on both channels. <o:p></o:p><o:p> </o:p>But in<o:p></o:p>pactl list modules short<o:p></o:p>the module<index> has disappeared while the other module-sine is still there.<o:p></o:p><o:p> </o:p>Could it be related to t he other modules that are loaded after boot? Here is a list of all modules that are loaded in my case by default: pi@TEST:~ $ pactl list modules short<o:p></o:p>0 module-device-restore<o:p></o:p>1 module-stream-restore<o:p></o:p>2 module-card-restore<o:p></o:p>3 module-augment-properties<o:p></o:p>4 module-switch-on-port-available<o:p></o:p>5 module-udev-detect<o:p></o:p>6 module-alsa-card device_id="0" name="platform-soc_audio" card_name="alsa_card.platform-soc_audio" namereg_fail=false tsched=yes fixed_latency_range=no ignore_dB=no deferred_volume=yes use_ucm=yes card_properties="module-udev-detect.discovered=1"<o:p></o:p>7 module-native-protocol-unix<o:p></o:p>8 module-default-device-restore<o:p></o:p>9 module-rescue-streams<o:p></o:p>10 module-always-sink<o:p></o:p>11 module-intended-roles<o:p></o:p>12 module-suspend-on-idle<o:p></o:p>13 module-console-kit<o:p></o:p>14 module-systemd-login<o:p></o:p>15 module-position-event-sounds<o:p></o:p>16 module-role-cork<o:p></o:p>17 module-filter-heuristics<o:p></o:p>18 module-filter-apply<o:p></o:p><o:p> </o:p>Annother hitch is that it takes quite an amount of time after unloading before module-sine can be reloaded again (roughly 10secs). Is there any flag or indication that the unloading has completed so that the module can be reloaded again? Kind regards <o:p></o:p><o:p> </o:p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'>Von: Georg Chini [<a href="mailto:georg@chini.tk">mailto:georg@chini.tk</a>] Gesendet: Samstag, 11. November 2017 13:37 An: S.C.T.N Gmbh Cc: General PulseAudio Discussion Betreff: Re: AW: [pulseaudio-discuss] module-sine for generating two independent sine wave signals on the left and right output of a sound device<o:p></o:p></div></div><o:p> </o:p><div>On 11.11.2017 13:29, S.C.T.N Gmbh wrote:<o:p></o:p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'>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: <o:p></o:p>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<o:p></o:p>24<o:p></o:p> <o:p></o:p>To define the right channel:<o:p></o:p>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<o:p></o:p>25<o:p></o:p> <o:p></o:p>To start sine on the left: pactl load-module module-sine sink=left_mono frequency=921<o:p></o:p>26<o:p></o:p> <o:p></o:p>To start sine on the right:<o:p></o:p>pactl load-module module-sine sink=right_mono frequency=821<o:p></o:p>27<o:p></o:p> <o:p></o:p>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. <o:p></o:p>Pactl unload-module <o:p></o:p>Both channels are stopped. <o:p></o:p></blockquote> 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". <o:p></o:p> <o:p></o:p> <o:p></o:p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'>Von: Georg Chini [<a href="mailto:georg@chini.tk">mailto:georg@chini.tk</a>] 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<o:p></o:p></div></div> <o:p></o:p><div>On 11.11.2017 09:50, S.C.T.N Gmbh wrote:<o:p></o:p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'>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?<o:p></o:p> <o:p></o:p>Thank you in advance Sporex<o:p></o:p> <o:p></o:p></blockquote>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<o:p></o:p><o:p> </o:p></div></body></html>