Linux-audio-user May 2017

linux-audio-user@lists.linuxaudio.org

72 participants
58 discussions

M-Audio Fast Track Pro: unreliable, distorted recording

by Lewis Pike

I'm the (un?)lucky owner of an M-Audio Fast Track Pro USB audio interface and I'm having some serious problems getting this device to record audio reliably under Linux. I've been using arecord and occasionally Audacity for all of my testing. My problem is this: Recording a take works about 80% of the time. In the remaining ~20% of cases, the captured audio is extremely loud with severe digital distortion. Once this problem shows up, it persists for any subsequent takes. The only way I've found to make the problem go away, at least temporarily, is to power-cycle the Fast Track Pro. I considered the possibility that this particular device might be defective, but it seems to work wonderfully under Windows. I'm calling out to other Fast Track Pro users in the hope that someone out there has encountered the same problem and better still, found a solution. Any suggestions at all would be greatly appreciated! .lewis

6 years, 3 months

html5 in ff through jack

by Peter P.

Hi list, I have been search the archives and the web a bit and it seems there is no easy way to route html5 audio playback from firefox through jack on Debian testing. Is this still the case or has there been recent development that might enable it? What would have to be done to make it work? This functionality is the last piece in my puzzle to finally get rid of flash. thanks for pointers, P

7 years

ShowQ - "a QLAB for Linux"

by Michael Jarosch

Hi there! ShowQ is a unique cue-player for Linux-Audio-Users. I use it as a core application for my theater activities. Even in the linux-community it's not a very well known application, although there's no other linux-program (I know) if you need a one-shot-audio-player with features like f.e. programmable fade-in, fade-out, no matter if you want it time-based or triggered by space (or another key). It can do a lot more - ShowQ has MIDI-support. Although I never tested this feature, it should be possible to control any application with MIDI-support. QLC(+) f.e. - or maybe some video-players do support MIDI - I don't know... Yeah, of course, ShowQ is not a drop in replacement for QLAB, but speaking about audio it fits quiet perfectly in my setup. ShowQ is in the Debian (and Ubuntu?) repositories, it's written in C++ and of course released under the terms of the GPL. Although this app is quiet useful for technicians like me, the development stopped years ago. I am not a coder, but I do my best to keep this project alive. On the Debian bug-tracker I write bug-reports for ShowQ, hoping that on one hand it's useful for other users to work around problems, on the other hand that someone fixes them. Last time I reported a bug Jaromír Mikeš the Debian-maintainer of ShowQ wrote that he is not able to fix the bugs and he would like to kick ShowQ. Of course, he also would like to package an alternative if there would be some he could package. I don't know any - so my linux-based theater setup is about to be killed one day when ShowQ wouldn't compile on my debian machine, anymore. So, what do I want from you? Test ShowQ! Maybe it's the app you've been missing for a long time! And if you're a coder with C++-skills, check out my bugreports on https://bugs.debian.org/cgi-bin/pkgreport.cgi?repeatmerged=no&src=showq - maybe you've got the clue... OR: Got an alternative to ShowQ? You're welcome! Greets! Mitsch

7 years, 3 months

#musicmadewithlinux - Summerset

by Patrick Shirkey

Hi, Here's a Psychedilc Experimental Rock track that some of you might enjoy. https://resonate.is/song/2565/jet_echo-summerset_-_redux/ Remixed/remastered using qtractor with some assistance from a few calf/tap plugins. -- Patrick Shirkey Boost Hardware Ltd

7 years, 5 months

[music] the relief

by Benoît Rouits

Hello dear list, After some silence here, i just wrote this little tune* called "The Relief", it is dedicated to the LAU. I hope you will enjoy it! As i use to write unfinished short tunes, this falls into this category too. So, don't feel frustrated at the end, i told you. It only lasts 3 minutes. I used musescore with the Salamander SFZ piano, Sonatina double bass, and yoshimi with classical ImpossibleDream patch. I recorded it with qjackrcd, orchestrated by qjackctl. Thank you for listening ! [*] http://brouits.free.fr/music/exmachina/the_relief.ogg

7 years, 5 months

M-Audio ProFire 2626 + jack

by Sergio Cioban Filho

Hi there, I'm trying to get the M-Audio ProFire 2626 working with jack but I'm having problems with either firewire (FFADO) driver or alsa (snd-dice) driver. Does someone got this interface working with jack ? What is the jack configuration? Any help is appreciated. Here is the jack output with alsa driver: ---------- $ /usr/bin/jackd -r -dalsa -dhw:FW2626 -r48000 -p512 -n3 -S jackdmp 1.9.11 Copyright 2001-2005 Paul Davis and others. Copyright 2004-2016 Grame. jackdmp comes with ABSOLUTELY NO WARRANTY This is free software, and you are welcome to redistribute it under certain conditions; see the file COPYING for details no message buffer overruns no message buffer overruns no message buffer overruns JACK server starting in non-realtime mode self-connect-mode is "Don't restrict self connect requests" creating alsa driver ... hw:FW2626|hw:FW2626|512|3|48000|0|0|nomon|swmeter|-|16bit configuring for 48000Hz, period = 512 frames (10.7 ms), buffer = 3 periods ALSA: final selected sample format for capture: 32bit integer little-endian ALSA: use 3 periods for capture ALSA: final selected sample format for playback: 16bit little-endian ALSA: use 3 periods for playback Using port names patch v0.1 (07.04.2010) Trying to load portnames from /home/cioban/.config/jack/cards/ FW2626.ss.ports.in Trying to load portnames from /home/cioban/.config/jack/cards/ FW2626.ports.in Trying to load portnames from /etc/jack/cards/FW2626.ss.ports.in Trying to load portnames from /etc/jack/cards/FW2626.ports.in Trying to load portnames from /home/cioban/.config/jack/cards/FW2626.ss.ports.out Trying to load portnames from /home/cioban/.config/jack/cards/FW2626.ports.out Trying to load portnames from /etc/jack/cards/FW2626.ss.ports.out Trying to load portnames from /etc/jack/cards/FW2626.ports.out ALSA: poll time out, polled for 16015031 usecs JackAudioDriver::ProcessAsync: read error, stopping... JackPosixProcessSync::LockedTimedWait error usec = 5000000 err = Connection timed out Driver is not running Cannot create new client ^CJack main caught signal 2 ----------- Here is the jack output with firewire driver: ---------- $ /usr/bin/jackd -R -dfirewire -dhw:FW2626 -r48000 -p512 -n3 jackdmp 1.9.11 Copyright 2001-2005 Paul Davis and others. Copyright 2004-2016 Grame. jackdmp comes with ABSOLUTELY NO WARRANTY This is free software, and you are welcome to redistribute it under certain conditions; see the file COPYING for details no message buffer overruns no message buffer overruns no message buffer overruns JACK server starting in realtime mode with priority 20 self-connect-mode is "Don't restrict self connect requests" 1495660814738434: (ffado.cpp)[ 92] ffado_streaming_init: libffado 2.3.9999-2692 built May 23 2017 20:13:02 19238875791: (dice_avdevice.cpp)[ 713] showDevice: DICE Parameter Space info: 19238875812: (dice_avdevice.cpp)[ 714] showDevice: Global : offset=0x0028 size=0360 19238875814: (dice_avdevice.cpp)[ 715] showDevice: TX : offset=0x0190 size=0568 19238875816: (dice_avdevice.cpp)[ 716] showDevice: nb= 2 size=0280 19238875817: (dice_avdevice.cpp)[ 717] showDevice: RX : offset=0x03C8 size=1128 19238875819: (dice_avdevice.cpp)[ 718] showDevice: nb= 2 size=0280 19238875820: (dice_avdevice.cpp)[ 719] showDevice: UNUSED1 : offset=0x0830 size=0016 19238875822: (dice_avdevice.cpp)[ 720] showDevice: UNUSED2 : offset=0x0000 size=0000 19238875823: (dice_avdevice.cpp)[ 722] showDevice: Global param space: 19238877603: (dice_avdevice.cpp)[ 725] showDevice: Owner : 0x00000000FFFF0000 19238879093: (dice_avdevice.cpp)[ 728] showDevice: Notification : 0x00000000 19238882092: (dice_avdevice.cpp)[ 731] showDevice: Nick name : FW2626 19238883422: (dice_avdevice.cpp)[ 735] showDevice: Clock Select : 0x02 0x0C 19238884809: (dice_avdevice.cpp)[ 739] showDevice: Enable : false 19238886625: (dice_avdevice.cpp)[ 743] showDevice: Clock Status : not locked 0x02 19238888097: (dice_avdevice.cpp)[ 746] showDevice: Extended Status : 0x00000000 19238889448: (dice_avdevice.cpp)[ 749] showDevice: Samplerate : 0x0000BB80 (48000) 19238890848: (dice_avdevice.cpp)[ 752] showDevice: Version : 0x01000400 19238892245: (dice_avdevice.cpp)[ 761] showDevice: Version : 0x01000400 (1.0.4.0) 19238893641: (dice_avdevice.cpp)[ 764] showDevice: Clock caps : 0x13F9007F 19238895372: (dice_avdevice.cpp)[ 767] showDevice: Clock sources : 19238895390: (dice_avdevice.cpp)[ 773] showDevice: SPDIF 19238895391: (dice_avdevice.cpp)[ 773] showDevice: AES34 19238895393: (dice_avdevice.cpp)[ 773] showDevice: AES56 19238895394: (dice_avdevice.cpp)[ 773] showDevice: TOS 19238895396: (dice_avdevice.cpp)[ 773] showDevice: AES_ANY 19238895397: (dice_avdevice.cpp)[ 773] showDevice: ADAT 19238895403: (dice_avdevice.cpp)[ 773] showDevice: ADAT_AUX 19238895405: (dice_avdevice.cpp)[ 773] showDevice: Word Clock 19238895411: (dice_avdevice.cpp)[ 773] showDevice: Unused 19238895412: (dice_avdevice.cpp)[ 773] showDevice: Unused 19238895415: (dice_avdevice.cpp)[ 773] showDevice: Unused 19238895417: (dice_avdevice.cpp)[ 773] showDevice: Unused 19238895420: (dice_avdevice.cpp)[ 773] showDevice: Internal 19238895421: (dice_avdevice.cpp)[ 776] showDevice: TX param space: 19238895425: (dice_avdevice.cpp)[ 777] showDevice: Nb of xmit : 2 19238895427: (dice_avdevice.cpp)[ 779] showDevice: Transmitter 0: 19238896953: (dice_avdevice.cpp)[ 782] showDevice: ISO channel : -1 19238898362: (dice_avdevice.cpp)[ 784] showDevice: ISO speed : 2 19238899762: (dice_avdevice.cpp)[ 787] showDevice: Nb audio channels : 10 19238901189: (dice_avdevice.cpp)[ 789] showDevice: Nb midi channels : 1 19238902694: (dice_avdevice.cpp)[ 792] showDevice: AC3 caps : 0x00000000 19238904122: (dice_avdevice.cpp)[ 794] showDevice: AC3 enable : 0x00000000 19238905945: (dice_avdevice.cpp)[ 797] showDevice: Channel names : 19238905979: (dice_avdevice.cpp)[ 802] showDevice: Mic-Line 1 19238906057: (dice_avdevice.cpp)[ 802] showDevice: Mic-Line 2 19238906059: (dice_avdevice.cpp)[ 802] showDevice: Mic-Line 3 19238906067: (dice_avdevice.cpp)[ 802] showDevice: Mic-Line 4 19238906069: (dice_avdevice.cpp)[ 802] showDevice: Mic-Line 5 19238906075: (dice_avdevice.cpp)[ 802] showDevice: Mic-Line 6 19238906077: (dice_avdevice.cpp)[ 802] showDevice: Mic-Line 7 19238906082: (dice_avdevice.cpp)[ 802] showDevice: Mic-Line 8 19238906083: (dice_avdevice.cpp)[ 802] showDevice: SPDIF L 19238906089: (dice_avdevice.cpp)[ 802] showDevice: SPDIF R 19238906094: (dice_avdevice.cpp)[ 779] showDevice: Transmitter 1: 19238907598: (dice_avdevice.cpp)[ 782] showDevice: ISO channel : -1 19238908975: (dice_avdevice.cpp)[ 784] showDevice: ISO speed : 2 19238910373: (dice_avdevice.cpp)[ 787] showDevice: Nb audio channels : 16 19238911784: (dice_avdevice.cpp)[ 789] showDevice: Nb midi channels : 0 19238913220: (dice_avdevice.cpp)[ 792] showDevice: AC3 caps : 0x00000000 19238914682: (dice_avdevice.cpp)[ 794] showDevice: AC3 enable : 0x00000000 19238916476: (dice_avdevice.cpp)[ 797] showDevice: Channel names : 19238916484: (dice_avdevice.cpp)[ 802] showDevice: ADAT 1 19238916492: (dice_avdevice.cpp)[ 802] showDevice: ADAT 2 19238916494: (dice_avdevice.cpp)[ 802] showDevice: ADAT 3 19238916497: (dice_avdevice.cpp)[ 802] showDevice: ADAT 4 19238916499: (dice_avdevice.cpp)[ 802] showDevice: ADAT 5 19238916502: (dice_avdevice.cpp)[ 802] showDevice: ADAT 6 19238916504: (dice_avdevice.cpp)[ 802] showDevice: ADAT 7 19238916507: (dice_avdevice.cpp)[ 802] showDevice: ADAT 8 19238916509: (dice_avdevice.cpp)[ 802] showDevice: ADAT 9 19238916512: (dice_avdevice.cpp)[ 802] showDevice: ADAT 10 19238916513: (dice_avdevice.cpp)[ 802] showDevice: ADAT 11 19238916516: (dice_avdevice.cpp)[ 802] showDevice: ADAT 12 19238916518: (dice_avdevice.cpp)[ 802] showDevice: ADAT 13 19238916521: (dice_avdevice.cpp)[ 802] showDevice: ADAT 14 19238916522: (dice_avdevice.cpp)[ 802] showDevice: ADAT 15 19238916525: (dice_avdevice.cpp)[ 802] showDevice: ADAT 16 19238916529: (dice_avdevice.cpp)[ 806] showDevice: RX param space: 19238916533: (dice_avdevice.cpp)[ 807] showDevice: Nb of recv : 2 19238916535: (dice_avdevice.cpp)[ 809] showDevice: Receiver 0: 19238917842: (dice_avdevice.cpp)[ 812] showDevice: ISO channel : -1 19238919276: (dice_avdevice.cpp)[ 814] showDevice: Sequence start : 0 19238920737: (dice_avdevice.cpp)[ 817] showDevice: Nb audio channels : 10 19238922115: (dice_avdevice.cpp)[ 819] showDevice: Nb midi channels : 1 19238923553: (dice_avdevice.cpp)[ 822] showDevice: AC3 caps : 0x00000000 19238924974: (dice_avdevice.cpp)[ 824] showDevice: AC3 enable : 0x00000000 19238927702: (dice_avdevice.cpp)[ 827] showDevice: Channel names : 19238927729: (dice_avdevice.cpp)[ 832] showDevice: Line 1 19238927741: (dice_avdevice.cpp)[ 832] showDevice: Line 2 19238927743: (dice_avdevice.cpp)[ 832] showDevice: Line 3 19238927746: (dice_avdevice.cpp)[ 832] showDevice: Line 4 19238927748: (dice_avdevice.cpp)[ 832] showDevice: Line 5 19238927751: (dice_avdevice.cpp)[ 832] showDevice: Line 6 19238927752: (dice_avdevice.cpp)[ 832] showDevice: Line 7 19238927755: (dice_avdevice.cpp)[ 832] showDevice: Line 8 19238927757: (dice_avdevice.cpp)[ 832] showDevice: SPDIF L 19238927767: (dice_avdevice.cpp)[ 832] showDevice: SPDIF R 19238927771: (dice_avdevice.cpp)[ 809] showDevice: Receiver 1: 19238929061: (dice_avdevice.cpp)[ 812] showDevice: ISO channel : -1 19238930427: (dice_avdevice.cpp)[ 814] showDevice: Sequence start : 0 19238931892: (dice_avdevice.cpp)[ 817] showDevice: Nb audio channels : 16 19238933240: (dice_avdevice.cpp)[ 819] showDevice: Nb midi channels : 0 19238934699: (dice_avdevice.cpp)[ 822] showDevice: AC3 caps : 0x00000000 19238936145: (dice_avdevice.cpp)[ 824] showDevice: AC3 enable : 0x00000000 19238937963: (dice_avdevice.cpp)[ 827] showDevice: Channel names : 19238937982: (dice_avdevice.cpp)[ 832] showDevice: ADAT 1 19238937996: (dice_avdevice.cpp)[ 832] showDevice: ADAT 2 19238937998: (dice_avdevice.cpp)[ 832] showDevice: ADAT 3 19238938047: (dice_avdevice.cpp)[ 832] showDevice: ADAT 4 19238938049: (dice_avdevice.cpp)[ 832] showDevice: ADAT 5 19238938052: (dice_avdevice.cpp)[ 832] showDevice: ADAT 6 19238938053: (dice_avdevice.cpp)[ 832] showDevice: ADAT 7 19238938056: (dice_avdevice.cpp)[ 832] showDevice: ADAT 8 19238938057: (dice_avdevice.cpp)[ 832] showDevice: ADAT 9 19238938060: (dice_avdevice.cpp)[ 832] showDevice: ADAT 10 19238938061: (dice_avdevice.cpp)[ 832] showDevice: ADAT 11 19238938064: (dice_avdevice.cpp)[ 832] showDevice: ADAT 12 19238938065: (dice_avdevice.cpp)[ 832] showDevice: ADAT 13 19238938068: (dice_avdevice.cpp)[ 832] showDevice: ADAT 14 19238938069: (dice_avdevice.cpp)[ 832] showDevice: ADAT 15 19238938072: (dice_avdevice.cpp)[ 832] showDevice: ADAT 16 19238962653: (dice_avdevice.cpp)[ 323] setSamplingFrequency: Setting sample rate: 48000 firewire ERR: Could not start streaming threads Cannot start driver JackServer::Start() failed with -1 Failed to start server Segmentation fault (core dumped) ---------- Thanks in advance. --- Sergio Cioban Filho

7 years, 5 months

checking passive input frequencies on non Hi-Z connection

by Wayne DePrince Jr.

ahoy all, i have been testing out a Zoom H5 which (along w/ the H6 for that matter) is advertised as NOT supporting passive instrument connections on the TRS inputs. to quote the manual: "Direct input of passive guitars and basses is not supported." thus i assumed that i would need a DI box/effect box/etc. to record well any directly connected passive electric guitar or bass. however, when i connect my electric guitar (Lace Sensors and Alumitone pickups) and electric bass, both passive, to the TRS connections on inputs 1 & 2 of the H5 with gain only at 5 of 10, i get a good sound and strong signal, seemingly the same as when they are connected to an interface (in this case a Zoom U-44) that supports Hi-Z connections. i first contacted Zoom support and they replied: "There is no issue connecting a passive guitar to the 1/4" input on the H5. There may only be an issue with level or noise, but if you are satisfied with the audio quality then there is no problem." now while i do not yet have a good understanding of Lo vs. Hi-Z, i have read various posts about it. they seem to indicate that the passive guitar signal would lose some frequencies with this kind of connection and thus this setup is undesirable. but again as it "sounds the same", i had some questions before investing in a DI box or getting a different interface: would the fact that the pickups are Lace Sensors and Alumintones have anything to do with the passive signal being picked up fairly well by the non Hi-Z input? is there a way to check (preferably in software) if frequencies are actually missing or if the signal quality is indeed reduced when compared to one from a Hi-Z input? is it possible that the H5 has good enough preamps/whatever that the gain on the inputs is enough to make the passive signal OK? so to summarize: is this an acceptable solution for recording a directly connected passive instrument (in this case an electric guitar and bass) even though the H5 does not officially support it? thanks, w PS: for those wondering the H5 works great w/ GNU+Linux as an audio interface

7 years, 6 months

new application

by Harold Wasserman

We are linux developers with no ALSA experience. We have an application where we want to take 1 to 4 I2s streams, run them through a mixer, and then output them in their original format on the same i2s streams. These i2s streams are from one source but can represent 2-8 channels. These streams can contain PCM (also multi channel PCM), all DTS and Dolby formats up to HD (DTS-HDMA & Dolby True-HD). If there is an off the shelf audio chip we can buy with ALSA support that can do the above, we would like to use it. We might also need to mix in a microphone with ducking support etc... any suggestions would be helpful.

7 years, 6 months

[Music] Declensions

by Dave Phillips

Greetings, https://soundcloud.com/davephillips69/declensions Quasi-ambient. :) Best, dp

7 years, 6 months

reinitialize soundcards for USB after boot/reboot

by Andreas Werner

I have several soundcards for USB. One of them doesn't initialize on boot or reboot. I have always to unplug and replug the cable USB manually that Fedora25 recognizes and initializes the soundcard in USB and PulseAudio. This is annoying. What does the same as manually unplug and replug an external USB device(soundcard)? How to do this? Is there a command for reinitializing USB devices? Is this done by triggering UDEV? Rgds AW

7 years, 6 months

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Linux-audio-user May 2017