Dear Clemens, Thank you so much for the alsaloop tip, I just ran it with: > chrt -rr 70 alsaloop -f S32_LE -C plughw:0 -P plug:ladspa -l 48 And it works perfectly, exactly what I needed! 😃 Regards /Robert > -----Original Message----- > From: Robert Bielik [mailto:Robert.Bielik@xxxxxxxxx] > Sent: den 21 juli 2017 11:32 > To: Clemens Ladisch <clemens@xxxxxxxxxx>; alsa-user@xxxxxxxxxxxxxxxxxxxxx > Subject: Re: Route input to output with minimal latency > > Hello Clemens, > > > Otherwise, you have to do the capture and playback in software. See > > the alsaloop tool. What latency you can reach depends on how much > > other applications and drivers interfere with the scheduling; on the > > Pi, typical culprits are WiFi, ethernet, or USB. > > Also see <https://wiki.linuxaudio.org/wiki/raspberrypi>. > > Thanks, I'll look at alsaloop tool. For further info, I am using an I2S sound card > (http://www.audioinjector.net/rpi-hat) , and have setup an ALSA device to > route playback.pcm through a LADSPA plugin, so all DSP will reside in the > plugin, thus I only need to route ALSA input to output in the application 😊 > > Regards > /Robert > ------------------------------------------------------------------------------ > Check out the vibrant tech community on one of the world's most engaging > tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Alsa-user mailing list > Alsa-user@xxxxxxxxxxxxxxxxxxxxx > https://lists.sourceforge.net/lists/listinfo/alsa-user ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
