Hi, I've not been active here for quite some time. So, I've tried something simple to get my toe back in, as I need to distribute MIDI files to some musician colleagues. So, I've wired an old Yamaha 49-key keyboard into Fluidsynth using a Textech MIDI to USB cable, and provided the aconnect command. I have sound, but it's about 300 ms latent--effectively unusable. Fluid synth did complain: "Failed to pin the sample data to RAM." Could that possibly explain this much latency? I'm loading Fluidsynth for alsa_seq because I don't believe I need the complexity of jack just yet. But, might jack do better? Any suggestions most appreciated. Janina Len Ovens writes: > > > On Tue, May 21, 2013 11:31 am, Robin Gareus wrote: > > [message re-arrange to avoid top-posting] > > On 05/21/2013 04:52 PM, Axax wrote: > >> On 05/21/2013 09:30 AM, Abhayadev S wrote: > >>> Hi, > >>> > >>> Anybody had tried using the Focusrite Scarllet 8i6 on Ubuntu Studio > 13.04? > >>> > >>> So far it was not supported under ALSA but from 13.04 it seems it is > been detected and the JACK is able to list out couple of I/Os. > >>> > >>> Last day i just booted up a live version of the 13.04 and was bale to > do couple of i/o routing. Jack lists 8 inputs and 12 outputs. It seems > the Inputs 1 to 4 (analog mic/line-ins) are listed as Inpiuts 1 to 4 > and 2 SPDIF are 5 and 6. But i am not sure about the 7 and 8. I am > getting the same SPDIF signal on these inputs too ! > >>> The output 1 to 4 are Monitors output (1&2) and extra outputs (3&4) on > the backside of the box. And 5&6 seems to be SPDIF outputs. Still have > 6 more outputs to be listed/clarified. > >>> > >>> Just going ahead with further analysis and if anybody out there has > any thing to add on please do so.. > >>> > >>> Regards, > >>> Abhayadev S > >>> http://sites.google.com/site/abhayadevs > >>> http://sites.google.com/site/astudioindia > >>> > > > >> Hi, > >> > >> I've the same audio card. It's working as you described, but I can't > figure out hot to change the input mode for the channels 1-2 from MIC > to LINE/instr! > >> Anybody have a clue? > > Just a quick addition. The below describes how to change the > line/instrument inputs back and forth. Mic to line is automatic. If you > plug into the XLR it is mic mode and into the 1/4inch TRS (or TS) it is > line/instrument mode. > >> > >> A. > >> > > > > see > > https://focusritedevelopmentteam.wordpress.com/2012/04/23/linux-and-focusrite-novation-products/#comment-51 > > > > https://github.com/x42/alsa-driver/tree/s18i6 adds full mixer support > for the 18i6. According to Focusrite the same will also work for the 8i6 > -- but I lost interest in Focusrite devices for various reasons. > > > > > > Short of patching the alsa kernel driver or using another OS to change > device config, you can use https://github.com/x42/scarlettmixer to > change the config on GNU/Linux. It's not a ready-to-use app, however: > > > > 1) rmmod snd_usb_audio # so that python script can access the device 2) > change the python script line 31 to detect the 8i6 > > 3) tweak the "example code" line 492.. > > the "line/inst" switch is there as sw_impedance() > > 4) modprobe snd_usb_audio # ... > > > > best, > > robin > > _______________________________________________ > > Linux-audio-user mailing list > > Linux-audio-user@xxxxxxxxxxxxxxxxxxxx > > http://lists.linuxaudio.org/listinfo/linux-audio-user > > > > > -- > Len Ovens > www.OvenWerks.net > > > > -- > Len Ovens > www.OvenWerks.net > > _______________________________________________ > Linux-audio-user mailing list > Linux-audio-user@xxxxxxxxxxxxxxxxxxxx > http://lists.linuxaudio.org/listinfo/linux-audio-user -- Janina Sajka, Phone: +1.443.300.2200 sip:janina@xxxxxxxxxxxxxxxxxxxx Email: janina@xxxxxxxxxxx Linux Foundation Fellow Executive Chair, Accessibility Workgroup: http://a11y.org The World Wide Web Consortium (W3C), Web Accessibility Initiative (WAI) Chair, Protocols & Formats http://www.w3.org/wai/pf Indie UI http://www.w3.org/WAI/IndieUI/ _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
