Linux-audio-user September 2012

linux-audio-user@lists.linuxaudio.org

98 participants
100 discussions

[OT]: El cheapo, el-almost-stupido MP3-player

by Julien Claassen

Hello mates! I've already lookd elsewhere. My MP3 player broke, but since I travel so much I'm really attached to it. Now I'm blind and thus hate displays by nature. I also dislike menus a lot, since you so easily get lost in them. I had a Creative Zenstone (one of the old models) so far. What I could do and am very attached to: increase/decrease volume previous/next track forward/rewind (could ease up on that) next folder play/pause/off It had a random function, but that might have gone rusty, I wouldn't know. any idea, if anything like that is still made nowadays? Sorry, to ask here, but it seems, that the typical shop assistent is more than overwhelmed by such demands, I had the feeling sometimes also by the name of these basic functionalities. Oh yes, the last great feature; Hook it up to the computer via USB, mount it, copy files onto it and unmount it, done. Do it on Linux, Mac, windows or anywhere else and it just works(TM). Thanks for suggestions. I've heard Sony ic recorders, but they don't look really promising and something with menus, but with a small firmwware hack to make it talk, though I'm not too sure yet about it's compatibility with all systems or even any other computer than my own, if I want to keep it accessible to me. Kind regards and thanks Julien ---------------------------------------- http://juliencoder.de/nama/music.html

11 years, 7 months

Linux Audio at Diaspora

by Louigi Verona

Hey guys! I came back to check out Diaspora and it has improved in many ways. For those of you who do not know, Diaspora is a decentralized social network similar to Facebook, although the UI is not so similar - the purpose is :) Anyway, I am now pretty active there and it seems there are lots of people sharing stuff. I invite everyone who is interested to join. We can share linux audio stuff there. I am using the https://joindiaspora.com pod. Cheers and see you at Diaspora! -- Louigi Verona http://www.louigiverona.ru/

11 years, 7 months

users of japa

by alexander

should you set the "resp" option in "flat" or "Prop" it seems to change the frequency curve quite drastically and I wonder wich is the "real" response.

11 years, 7 months

convert 32bit/96kHz Wav to flac and ogg

by Thijs van severen

hi all i'm trying to find a reliable way to convert a batch of wav files to flac and ogg i have a py script that uses oggenc and flac for this, but since i newer know what the exact bitrate/samplefreq of the input wav files will be i want the conversion to be as robust as possible currently i can convert the most common formats, but i'm having trouble converting 32bit/96kHz stereo wav files : flac and oggenc dont like them :-( i have tried with ffmpeg and various settings but i cant get it to work using 'sound convertor 1.4.4' i can convert the samples, but that's a gui app (and i want to script the conversion) + it does crash quite a bit when i try to convert a number of these wav files in batch any ideas ? thanks! grtz Thijs -- follow me on my Audio & Linux blog <http://audio-and-linux.blogspot.com/> !

11 years, 7 months

Issues with kernel-rt, at least using Arch Linux

by Ralf Mardorf

Hi :) this is very strange. A regular kernel doesn't cause xruns, but a kernel-rt does always cause xruns, when running jack_midi_latency_test. Because the proprietary nvidia driver doesn't work on my machine, when using a kernel-rt, what ever trick I try, I tested the nouveau driver. The nouveau driver does cause xruns for my RME card, but is ok with a TerraTec card. I switched to the nv driver and still get xruns for the RME card and the TerraTec card completely fails the test using a kernel-rt. When I repeat the test with a regular kernel, while using the proprietary nvidia driver, the RME card passes the test without xruns and the TerraTec card also is ok. The only idea I've got is to compile a full preempt kernel, boot it with threadirqs and to use the proprietary nvidia driver, but I would prefer to use a kernel-rt. Any hints are welcome. Arch Linux x86_64 mouse and iPad connected to USB ports when I started the test I thought the issues could be related to the connected iPad, but they aren't [spinymouse@archlinux ~]$ sudo cpupower frequency-set -g performance [spinymouse@archlinux ~]$ uname -r 3.4.4-rt14-1-rt [spinymouse@archlinux ~]$ hdspmixer Card 0: RME AIO S/N 0x579bcc at 0xfdbf0000, irq 18 Card 1: TerraTec EWX24/96 at 0xbf00, irq 20 Card 2: TerraTec EWX24/96 at 0xbb00, irq 21 [spinymouse@archlinux ~]$ sudo chgrp audio /dev/hpet [spinymouse@archlinux ~]$ sudo chmod g+rw /dev/hpet [spinymouse@archlinux ~]$ sudo modprobe snd-hrtimer [spinymouse@archlinux ~]$ /etc/rc.d/rtirq status PID CLS RTPRIO NI PRI %CPU STAT COMMAND 59 FF 90 - 130 0.0 S irq/8-rtc0 283 FF 85 - 125 0.0 S irq/18-snd_hdsp 320 FF 80 - 120 0.0 S irq/20-snd_ice1 322 FF 79 - 119 0.0 S irq/21-snd_ice1 104 FF 70 - 110 0.0 S irq/19-ehci_hcd 106 FF 70 - 110 0.3 S irq/16-ohci_hcd 108 FF 69 - 109 0.0 S irq/17-ohci_hcd 112 FF 68 - 108 0.0 S irq/17-ohci_hcd 57 FF 65 - 105 0.0 S irq/1-i8042 20 FF 50 - 90 0.0 S irq/9-acpi 92 FF 50 - 90 0.1 S irq/22-ahci 110 FF 50 - 90 0.0 S irq/18-ohci_hcd 114 FF 50 - 90 0.0 S irq/18-ohci_hcd 117 FF 50 - 90 0.0 S irq/14-pata_ati 118 FF 50 - 90 0.0 S irq/15-pata_ati 257 FF 50 - 90 0.0 S irq/7-parport0 270 FF 50 - 90 0.0 S irq/22-firewire 587 FF 50 - 90 0.0 S irq/43-eth0 3 FF 1 - 41 0.0 S ksoftirqd/0 11 FF 1 - 41 0.0 S ksoftirqd/1 [spinymouse@archlinux ~]$ grep Driver /etc/X11/xorg.conf #Driver "nvidia" Driver "nv" #Driver "nouveau" #Driver "vesa" [spinymouse@archlinux ~]$ jackd --sync -Xalsarawmidi -dalsa -r48000 -p256 jackdmp 1.9.8 [spinymouse@archlinux ~]$ jack_midi_latency_test -m 3 -s 8192 -t 5 "system:1-1 HDSPMx579bcc MIDI 1 1 out" "system:1-1 HDSPMx579bcc MIDI 1 1 in" Waiting for connections ... Waiting for test completion ... Reported out-port latency: 5.33-5.33 ms (256-256 frames) Reported in-port latency: 5.33-5.33 ms (256-256 frames) Average latency: 11.67 ms (560.27 frames) Lowest latency: 11.65 ms (559 frames) Highest latency: 11.75 ms (564 frames) Peak MIDI jitter: 0.10 ms (5 frames) Average MIDI jitter: 0.01 ms (0.08 frames) Jitter Plot: 0.0 - 0.1 ms: 8191 > 10 ms: 1 Latency Plot: 11.6 - 11.7 ms: 8091 11.7 - 11.8 ms: 100 > 21.6 ms: 1 Messages sent: 8192 Messages received: 8192 Xruns: 1 computer issues, a reset was needed only mouse connected to an USB port [spinymouse@archlinux ~]$ sudo cpupower frequency-set -g performance [spinymouse@archlinux ~]$ uname -r 3.4.4-rt14-1-rt [spinymouse@archlinux ~]$ hdspmixer Card 0: RME AIO S/N 0x579bcc at 0xfdef0000, irq 18 Card 1: TerraTec EWX24/96 at 0xbf00, irq 20 Card 2: TerraTec EWX24/96 at 0xbb00, irq 21 [spinymouse@archlinux ~]$ sudo chgrp audio /dev/hpet [spinymouse@archlinux ~]$ sudo chmod g+rw /dev/hpet [spinymouse@archlinux ~]$ sudo modprobe snd-hrtimer [spinymouse@archlinux ~]$ /etc/rc.d/rtirq status PID CLS RTPRIO NI PRI %CPU STAT COMMAND 59 FF 90 - 130 0.0 S irq/8-rtc0 361 FF 85 - 125 0.0 S irq/18-snd_hdsp 365 FF 80 - 120 0.0 S irq/20-snd_ice1 368 FF 79 - 119 0.0 S irq/21-snd_ice1 113 FF 70 - 110 0.0 S irq/19-ehci_hcd 115 FF 70 - 110 0.3 S irq/16-ohci_hcd 117 FF 69 - 109 0.0 S irq/17-ohci_hcd 121 FF 68 - 108 0.0 S irq/17-ohci_hcd 57 FF 65 - 105 0.0 S irq/1-i8042 20 FF 50 - 90 0.0 S irq/9-acpi 102 FF 50 - 90 0.2 S irq/22-ahci 119 FF 50 - 90 0.0 S irq/18-ohci_hcd 123 FF 50 - 90 0.0 S irq/18-ohci_hcd 126 FF 50 - 90 0.0 S irq/14-pata_ati 127 FF 50 - 90 0.0 S irq/15-pata_ati 289 FF 50 - 90 0.0 S irq/7-parport0 324 FF 50 - 90 0.0 S irq/22-firewire 618 FF 50 - 90 0.0 S irq/43-eth0 3 FF 1 - 41 0.1 S ksoftirqd/0 11 FF 1 - 41 0.1 S ksoftirqd/1 [spinymouse@archlinux ~]$ grep Driver /etc/X11/xorg.conf #Driver "nvidia" Driver "nv" #Driver "nouveau" #Driver "vesa" [spinymouse@archlinux ~]$ jackd --sync -Xalsarawmidi -dalsa -r48000 -p256 jackdmp 1.9.8 [spinymouse@archlinux ~]$ jack_midi_latency_test -m 3 -s 8192 -t 5 "system:1-1 HDSPMx579bcc MIDI 1 1 out" "system:1-1 HDSPMx579bcc MIDI 1 1 in" Waiting for connections ... Waiting for test completion ... Reported out-port latency: 5.33-5.33 ms (256-256 frames) Reported in-port latency: 5.33-5.33 ms (256-256 frames) Average latency: 11.69 ms (560.56 frames) Lowest latency: 11.64 ms (559 frames) Highest latency: 11.77 ms (565 frames) Peak MIDI jitter: 0.13 ms (6 frames) Average MIDI jitter: 0.02 ms (0.04 frames) Jitter Plot: 0.0 - 0.1 ms: 8187 > 10 ms: 5 Latency Plot: 11.6 - 11.7 ms: 7919 11.7 - 11.8 ms: 268 > 21.6 ms: 5 Messages sent: 8192 Messages received: 8192 Xruns: 5 [spinymouse@archlinux ~]$ jack_midi_latency_test -m 3 -s 8192 -t 5 "system:2-1 TerraTec EWX24/96 MIDI 1 out" "system:2-1 TerraTec EWX24/96 MIDI 1 in" Waiting for connections ... Waiting for test completion ... Messages sent: 5619 Messages received: 5618 jack_midi_latency_test: handle_process: timed out while waiting for MIDI message before I reset the computer I got this too, this time a shutdown was possible I also disconnected the computer from the mains for 55 minutes, before I booted again only mouse connected to an USB port now without hpet enabled [spinymouse@archlinux ~]$ sudo cpupower frequency-set -g performance [spinymouse@archlinux ~]$ uname -r 3.4.4-rt14-1-rt [spinymouse@archlinux ~]$ hdspmixer Card 0: RME AIO S/N 0x579bcc at 0xfdef0000, irq 18 Card 1: TerraTec EWX24/96 at 0xbf00, irq 20 Card 2: TerraTec EWX24/96 at 0xbb00, irq 21 [spinymouse@archlinux ~]$ /etc/rc.d/rtirq status PID CLS RTPRIO NI PRI %CPU STAT COMMAND 59 FF 90 - 130 0.0 S irq/8-rtc0 318 FF 85 - 125 0.0 S irq/18-snd_hdsp 326 FF 80 - 120 0.0 S irq/20-snd_ice1 328 FF 79 - 119 0.0 S irq/21-snd_ice1 107 FF 70 - 110 0.0 S irq/19-ehci_hcd 109 FF 70 - 110 0.2 S irq/16-ohci_hcd 121 FF 69 - 109 0.0 S irq/17-ohci_hcd 125 FF 68 - 108 0.0 S irq/17-ohci_hcd 57 FF 65 - 105 0.0 S irq/1-i8042 20 FF 50 - 90 0.0 S irq/9-acpi 100 FF 50 - 90 0.0 S irq/14-pata_ati 101 FF 50 - 90 0.0 S irq/15-pata_ati 111 FF 50 - 90 0.2 S irq/22-ahci 123 FF 50 - 90 0.0 S irq/18-ohci_hcd 127 FF 50 - 90 0.0 S irq/18-ohci_hcd 279 FF 50 - 90 0.0 S irq/7-parport0 323 FF 50 - 90 0.0 S irq/22-firewire 586 FF 50 - 90 0.0 S irq/43-eth0 3 FF 1 - 41 0.1 S ksoftirqd/0 11 FF 1 - 41 0.1 S ksoftirqd/1 [spinymouse@archlinux ~]$ grep Driver /etc/X11/xorg.conf #Driver "nvidia" Driver "nv" #Driver "nouveau" #Driver "vesa" [spinymouse@archlinux ~]$ jackd --sync -Xalsarawmidi -dalsa -r48000 -p256 jackdmp 1.9.8 [spinymouse@archlinux ~]$ jack_midi_latency_test -m 3 -s 8192 -t 5 "system:1-1 HDSPMx579bcc MIDI 1 1 out" "system:1-1 HDSPMx579bcc MIDI 1 1 in" Waiting for connections ... Waiting for test completion ... Reported out-port latency: 5.33-5.33 ms (256-256 frames) Reported in-port latency: 5.33-5.33 ms (256-256 frames) Average latency: 11.67 ms (560.32 frames) Lowest latency: 11.64 ms (559 frames) Highest latency: 11.75 ms (564 frames) Peak MIDI jitter: 0.11 ms (5 frames) Average MIDI jitter: 0.01 ms (0.09 frames) Jitter Plot: 0.0 - 0.1 ms: 8192 Latency Plot: 11.6 - 11.7 ms: 8024 11.7 - 11.8 ms: 168 Messages sent: 8192 Messages received: 8192 after the test for the TerraTec failed again, I had to reset the computer I booted a kernel-rt for AV Linux unfortunately Jack2 is version 1.9.6, so I booted Arch Linux again, but this time I didn't boot the kernel-rt [spinymouse@archlinux ~]$ sudo cpupower frequency-set -g performance [spinymouse@archlinux ~]$ uname -r 3.5.4-1-ARCH [spinymouse@archlinux ~]$ hdspmixer Card 0: RME AIO S/N 0x579bcc at 0xfdbf0000, irq 18 Card 1: TerraTec EWX24/96 at 0xbf00, irq 20 Card 2: TerraTec EWX24/96 at 0xbb00, irq 21 [spinymouse@archlinux ~]$ /etc/rc.d/rtirq status PID CLS RTPRIO NI PRI %CPU STAT COMMAND 3 TS - 0 19 0.0 S ksoftirqd/0 10 TS - 0 19 0.0 S ksoftirqd/1 [spinymouse@archlinux ~]$ grep Driver /etc/X11/xorg.conf ### Driver "nvidia" #Driver "nv" #Driver "nouveau" #Driver "vesa" spinymouse@archlinux ~]$ jackd --sync -Xalsarawmidi -dalsa -r48000 -p256 jackdmp 1.9.8 [spinymouse@archlinux ~]$ jack_midi_latency_test -m 3 -s 8192 -t 5 "system:2-1 TerraTec EWX24/96 MIDI 1 out" "system:2-1 TerraTec EWX24/96 MIDI 1 in" Waiting for connections ... Waiting for test completion ... Reported out-port latency: 5.33-5.33 ms (256-256 frames) Reported in-port latency: 5.33-5.33 ms (256-256 frames) Average latency: 11.67 ms (560.05 frames) Lowest latency: 11.67 ms (560 frames) Highest latency: 11.77 ms (565 frames) Peak MIDI jitter: 0.11 ms (5 frames) Average MIDI jitter: 0.00 ms (0.01 frames) Jitter Plot: 0.0 - 0.1 ms: 8191 0.1 - 0.2 ms: 1 Latency Plot: 11.6 - 11.7 ms: 8146 11.7 - 11.8 ms: 46 Messages sent: 8192 Messages received: 8192 [spinymouse@archlinux ~]$ jack_midi_latency_test -m 3 -s 8192 -t 5 "system:1-1 HDSPMx579bcc MIDI 1 1 out" "system:1-1 HDSPMx579bcc MIDI 1 1 in" Waiting for connections ... Waiting for test completion ... Reported out-port latency: 5.33-5.33 ms (256-256 frames) Reported in-port latency: 5.33-5.33 ms (256-256 frames) Average latency: 11.68 ms (560.43 frames) Lowest latency: 11.65 ms (559 frames) Highest latency: 11.73 ms (563 frames) Peak MIDI jitter: 0.08 ms (4 frames) Average MIDI jitter: 0.01 ms (0.01 frames) Jitter Plot: 0.0 - 0.1 ms: 8192 Latency Plot: 11.6 - 11.7 ms: 8156 11.7 - 11.8 ms: 36 Messages sent: 8192 Messages received: 8192 Regards, Ralf

11 years, 7 months

A sub-harmonic generator plugin

by Julien Claassen

Hello everyone! I'm looking for a plugin - LADSPA preferred, but LV2 definitely acceptable - to generate a subharmonic. There is a LADSP harmoniser plugin, but it only generates harmonics above the main frequency. Any idea? thanks and warm regards Julien ---------------------------------------- http://juliencoder.de/nama/music.html

11 years, 7 months

control of plugin parameters with OSC in ingen

by Giso Grimm

Hi all, is it possible to control plugin parameters in ingen with OSC messages, without adding an OSC to control port converter plugin? Does ingen offer this functionality directly? Best, Giso

11 years, 7 months

WhySynth and QMidiArp trouble

by Louigi Verona

Hey fellas! I am loading Whysynth through Carla and then use QMidiArp to play it. Problem is, some of the presets (like "New String Thingy", first preset) are "clicking" - they produce occasional clicks or pops. I would like to know if someone has experienced same thing? I am attaching a QMidiArp file so that anyone can try to reproduce. I wondered if it is the fault of the WhySynth preset, but no settings I tried changed the situation. I then tried doing things with Carla - you can see QMidiArp has two sequencers there. So I added two separate WhySynths and made each sequencer in QMidiArp go into a separate WhySynth. Number of clicks went down, but occasional audible clicks stayed. Any ideas how to fix this? I really like that WhySynth preset and would like to use it without clicks! -- Louigi Verona http://www.louigiverona.ru/

11 years, 7 months

jackd2 and X11/dbus

by Len Ovens

Is there any way (--nodbus?) of getting jackd2 with dbus built in to start in a no X11 system? I get this: Failed to connect to session bus for device reservation Unable to autolaunch a dbus-daemon without a $DISPLAY for X11 from this: jackd -v -dalsa -dhw:0 -p2048 -n3 I have an old box with minimal memory, speed, drive space, that I want to experiment with (using old internal junk sound IF) with cli audio stuff as well as netjack. (netjack is jackd2) Or a way of setting up a dbus instance jackd can use. I have seen a script called jackstart that does this, but the program it uses dbus-launch wants X11 depends :P Dbus use should be possible without X11 sessions anyway. I just don't know how. I would prefer not to have to use a roll my own version of Jackd so that I have easy access to updates. BTW, it would seem that with netjack, MIDI ports can be on a different machine from Audio IF using a2j (a2j may be needed on more than one machine if using apps that are alsa midi only on more than one machine). Any holes in that logic? So two MIDI IFs on two machines should be usable at the same time. Sync would not be an issue at the speeds MIDI runs at. In fact it would give better response when using external synths as the MIDI baud rate would be less of an issue. Len -- Len Ovens www.OvenWerks.net

11 years, 7 months

Re: [LAU] MIDI keyboard not recognized

by jy

2012/9/13 Ralf Mardorf <ralf.mardorf(a)alice-dsl.net> > On Thu, 2012-09-13 at 07:38 +0200, jy wrote: > > and after : > > > > $ lsmod | grep snd > > snd_usb_audio 83446 0 > > snd_usbmidi_lib 22777 1 snd_usb_audio > > snd_rawmidi 22278 1 snd_usbmidi_lib > > snd_hda_codec_hdmi 30352 1 > > snd_hda_codec_realtek 95198 1 > > snd_hda_intel 25788 5 > > snd_hda_codec 87980 3 > > snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel > > snd_hwdep 12910 2 snd_usb_audio,snd_hda_codec > > snd_pcm_oss 39968 0 > > snd_mixer_oss 21707 2 snd_pcm_oss > > snd_pcm 69043 5 > > snd_usb_audio,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_pcm_oss > > snd_seq_dummy 12455 0 > > snd_seq_oss 32416 0 > > snd_seq_midi_event 13124 1 snd_seq_oss > > snd_seq 51504 5 > > snd_seq_dummy,snd_seq_oss,snd_seq_midi_event > > snd_timer 22187 2 snd_pcm,snd_seq > > snd_seq_device 12980 4 > > snd_rawmidi,snd_seq_dummy,snd_seq_oss,snd_seq > > snd 50814 24 > > > snd_usb_audio,snd_usbmidi_lib,snd_rawmidi,snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_dummy,snd_seq_oss,snd_seq,snd_timer,snd_seq_device > > soundcore 12926 2 snd > > snd_page_alloc 12841 2 snd_hda_intel,snd_pcm > > > > > > snd_usb_audio loads properly! > > Isn't usbcore missing? > usbcore --> snd_usb_audio,ohci_hcd,snd_usbmidi_lib,ehci_hcd,usbhid > > at least snd-usb-audio and ehci-hcd are present (logs testifying it available in the thread). so I think usbcore is not missing but i know snd_seq_midi is. jy

11 years, 7 months

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Linux-audio-user September 2012