Hey Pierre, Not sure if the 2 are related but presuming they are... I've just been testing an ESI UDJ6 soundcard and the image I backed up before updating the firmware would only run the card with the usb and ethernet slowdown options. Post rpi-update got 6 channels of audio without either slowdown required though I think it does run better (less system resources) with both options enabled.
My trusty ol' Griffin just 'works' with both installs so didn't notice any difference but I haven't yet checked whether usb slowdown is still required for duplex with that soundcard as of yet. This is on a rev1 256meg board btw. Regards, Julian On 8 May 2013 14:33, Pierre Massat <[email protected]> wrote: > hi Julian, > > Could you please tell us what difference this makes in terms of > performance ? Do you use JACK ? Is this any better than with Pd only ? > > Cheers, > > Pierre. > > > 2013/5/8 Julian Brooks <[email protected]> > >> Thanks to Dan for the >> 'update alsa mmap' command' >> Thought I'd buggered up my install until I ran that command, now all >> happy again. >> >> Julian >> >> >> On 4 May 2013 20:18, Julian Brooks <[email protected]> wrote: >> >>> Hi all, >>> >>> Dunno if everyone's on this already but looks useful: >>> >>> http://martinezjavier.wordpress.com/2013/04/27/mmap-support-for-raspberry-pi-bcm2835-alsa-driver/ >>> >>> From here: >>> >>> http://www.raspberrypi.org/phpBB3/viewtopic.php?f=38&t=33462&p=334943#p334943 >>> >>> Not tested as of yet but anything that squeezes a bit more audio >>> performance out of the RPi is to be welcomed. >>> >>> rpi-update ahoy, >>> >>> Julian >>> >> >> >> _______________________________________________ >> [email protected] mailing list >> UNSUBSCRIBE and account-management -> >> http://lists.puredata.info/listinfo/pd-list >> >> >
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