On Tue, October 21, 2014 8:41 pm, Carlos sanchiavedraz wrote: > 2014-10-21 11:37 GMT+02:00 Patrick Shirkey <pshirkey@xxxxxxxxxxxxxxxxx>: > >> >> On Tue, October 21, 2014 8:27 pm, Carlos sanchiavedraz wrote: >> > 2014-10-20 17:10 GMT+02:00 Patrick Shirkey >> <pshirkey@xxxxxxxxxxxxxxxxx>: >> > >> >> >> >> On Mon, October 20, 2014 10:59 pm, Jeremy Jongepier wrote: >> >> > On 10/20/2014 11:34 AM, Atte wrote: >> >> >> Dunno about jack, but it seems interesting! However I can't seem >> to >> >> find >> >> >> any prices... >> >> > >> >> > These devices are fairly cheap starting from about $50: >> >> > >> >> >> http://www.dx.com/p/ditter-u20-dual-core-android-4-2-google-tv-hd-player-w-1gb-ram-4gb-rom-hdmi-black-300969#.VET43IXSWAs >> >> > >> >> >> >> If you want something that is relatively cheap that can run pianoteq, >> >> linuxsampler, etc... then you should look into the Intel NUC range. >> >> >> >> They provide a very nice piece of gear for a stand alone solution and >> >> decent responsive support via the OTC forums. I requested a change to >> >> the >> >> BIOS and they did it for me as an update. >> >> >> >> I have had one for several months as a head for my home entertainment >> >> center and it is working very well. Yesterday I did some edits with >> >> ardour2. All I had to do was "apt-get install ardour". >> >> >> >> It's not $50 but it is less than $300 for a complete 64 bit x86 >> solution >> >> including RAM/HDD/SSD. The case is brushed aluminium and it is very >> >> robust. If you get an SSD it is nearly 100% solid state apart from >> the >> >> CPU >> >> fan which is almost noiseless. >> >> >> >> My (cheap) home stereo speaker system generates more noise than the >> fan >> >> and I have it running 24/7 for net streaming to TV with full 1080p >> over >> >> hdmi. >> >> >> >> Saves all the hassle of learning how to cross compile and the general >> >> issues associated with developing for ARM. >> >> >> >> I tried several other options before settling on this one. They were >> >> cheaper but also more frustrating. >> >> >> >> Intel are catching up on ARM these days with the 16/14/12nm fab >> process. >> >> >> >> > That's one of the cheapest I could find with an Allwinner A20 >> chipset. >> >> > Better would be to get something like a Cubieboard. >> >> > >> >> >> >> -- >> >> Patrick Shirkey >> >> Boost Hardware Ltd >> >> _______________________________________________ >> >> Linux-audio-user mailing list >> >> Linux-audio-user@xxxxxxxxxxxxxxxxxxxx >> >> http://lists.linuxaudio.org/listinfo/linux-audio-user >> >> >> > >> > That about Intel NUC range sounds really interesting. Which device do >> you >> > have, Patrick? I guess the possibilities are one of these: >> > http://techpartner.intel.com/campaigns/nuc/ >> > >> >> I got the cheapest one at the time which was the DNY2820FKH. It has a >> dual >> core celeron and 4GB RAM. I think it can take up to 16GB. >> >> > Apart from running Ardour, what about RT and IRQs and that stuff? >> > Thanks Patrick. >> > >> >> The rt config is in place but I haven't really pushed it for audio >> generation yet. It runs electricsheep and full 1080p video/audio without >> any issues. I can get about 30fps with 1080p which is decent for viewing >> but not fast enough for competitive playing. >> >> Here is cat /proc/interrupts >> CPU0 CPU1 >> 0: 26 0 IO-APIC-edge timer >> 1: 2 0 IO-APIC-edge i8042 >> 8: 1 0 IO-APIC-fasteoi rtc0 >> 9: 0 0 IO-APIC-fasteoi acpi >> 10: 10801372 0 IO-APIC-edge ite-cir >> 12: 4 0 IO-APIC-edge i8042 >> 103: 1018511 0 PCI-MSI-edge xhci_hcd >> 104: 7418719 0 PCI-MSI-edge ahci >> 105: 113014233 0 PCI-MSI-edge eth0 >> 106: 216595760 0 PCI-MSI-edge i915 >> 107: 373 1604714 PCI-MSI-edge iwlwifi >> 108: 1368299 0 PCI-MSI-edge snd_hda_intel >> NMI: 48085 47493 Non-maskable interrupts >> LOC: 383351941 317871495 Local timer interrupts >> SPU: 0 0 Spurious interrupts >> PMI: 48085 47493 Performance monitoring interrupts >> IWI: 4051038 6083943 IRQ work interrupts >> RTR: 0 0 APIC ICR read retries >> RES: 69587463 71022804 Rescheduling interrupts >> CAL: 427 487 Function call interrupts >> TLB: 1192097 1158476 TLB shootdowns >> TRM: 0 0 Thermal event interrupts >> THR: 0 0 Threshold APIC interrupts >> MCE: 0 0 Machine check exceptions >> MCP: 2904 2904 Machine check polls >> ERR: 0 >> MIS: 0 >> >> >> >> >> >> >> -- >> Patrick Shirkey >> Boost Hardware Ltd >> _______________________________________________ >> Linux-audio-user mailing list >> Linux-audio-user@xxxxxxxxxxxxxxxxxxxx >> http://lists.linuxaudio.org/listinfo/linux-audio-user >> > > Thanks! > > It'll be great if it runs Debian/Musix and if it could be configured for > RT > audio. > I have installed Debian but there were issues with the wifi chipset so I switched to ubuntu which has better support for wifi ootb. Simply because I didn't want to spend any more time on wifi issues at that point having just ditched a rockchip device with similar problems. Now I don't use wifi so I could switch back to debian but seeing as everything is already setup there is not much motivation. The realtime config is in place when I installed jack/ardour2. I have not tested the actual best case latency with jack yet. It works fine with -p 1024 -r48000 -n2. Maybe someone else has latency details on the audio chipset with other systems? (snd-hda-intel) I'll try to run some tests when my daughter is not watching teletubbies. -- Patrick Shirkey Boost Hardware Ltd _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
