Linux-audio-user December 2017

linux-audio-user@lists.linuxaudio.org

66 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, 7 months

Save the date: Linux Audio Conference 2018

by David Runge

[Apologies for cross-postings] [Please distribute] Save the date: Linux Audio Conference 2018 The 2018 Linux Audio Conference will take place at c-base, Berlin 7th -11th June 2018 The LAC 2018 will feature a full program of talks, workshops and music. The official call for papers and works will be sent shortly after the winter break - so use the quiet of the holidays to think about possible submissions. All relevant information will be made available on: http://lac.linuxaudio.org/2018/ The LAC 2018 Organizing Team -- https://sleepmap.de

6 years, 11 months

Teufel PC Bamster not getting connected on USB?

by David Kastrup

Hi, I just got some older Bamster soundbar model (probably not a keeper) that takes USB either for power (in which case it uses AUX in analog) or also as USB soundcard. In the latter case, however, it just switches itself off after a few seconds. dmesg is [ 1201.960192] usb 5-2: new full-speed USB device number 5 using uhci_hcd [ 1202.098273] usb 5-2: config 1 has an invalid interface number: 3 but max is 2 [ 1202.098278] usb 5-2: config 1 has no interface number 2 [ 1202.107265] usb 5-2: New USB device found, idVendor=10d6, idProduct=1100 [ 1202.107271] usb 5-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 1202.107276] usb 5-2: Product: USB Audio [ 1202.107280] usb 5-2: Manufacturer: ACTIONS [ 1203.326284] usb 5-2: 1:1: cannot get freq at ep 0x2 [ 1203.338528] usb 5-2: 3:0: cannot get min/max values for control 2 (id 3) [ 1203.344305] usbhid 5-2:1.3: can't add hid device: -71 [ 1203.344328] usbhid: probe of 5-2:1.3 failed with error -71 [ 1203.456336] usb 5-2: USB disconnect, device number 5 and if I am fast enough (before it switches itself off again), lsusb -v delivers Bus 005 Device 007: ID 10d6:1100 Actions Semiconductor Co., Ltd MPMan MP-Ki 128 MP3 Player/Recorder Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x10d6 Actions Semiconductor Co., Ltd idProduct 0x1100 MPMan MP-Ki 128 MP3 Player/Recorder bcdDevice 1.00 iManufacturer 1 (error) iProduct 2 (error) iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 135 bNumInterfaces 3 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xc0 Self Powered MaxPower 0mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 1 Audio bInterfaceSubClass 1 Control Device bInterfaceProtocol 0 iInterface 0 AudioControl Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 1 (HEADER) bcdADC 1.00 wTotalLength 40 bInCollection 1 baInterfaceNr( 0) 1 AudioControl Interface Descriptor: bLength 12 bDescriptorType 36 bDescriptorSubtype 2 (INPUT_TERMINAL) bTerminalID 1 wTerminalType 0x0101 USB Streaming bAssocTerminal 0 bNrChannels 2 wChannelConfig 0x0003 Left Front (L) Right Front (R) iChannelNames 0 iTerminal 0 AudioControl Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 3 (OUTPUT_TERMINAL) bTerminalID 2 wTerminalType 0x0301 Speaker bAssocTerminal 0 bSourceID 3 iTerminal 0 AudioControl Interface Descriptor: bLength 10 bDescriptorType 36 bDescriptorSubtype 6 (FEATURE_UNIT) bUnitID 3 bSourceID 1 bControlSize 1 bmaControls( 0) 0x03 Mute Control Volume Control bmaControls( 1) 0x00 bmaControls( 2) 0x00 iFeature 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 1 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 1 bDelay 0 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 11 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 2 bBitResolution 16 bSamFreqType 1 Discrete tSamFreq[ 0] 44100 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 9 Transfer Type Isochronous Synch Type Adaptive Usage Type Data wMaxPacketSize 0x00c0 1x 192 bytes bInterval 1 bRefresh 0 bSynchAddress 0 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x01 Sampling Frequency bLockDelayUnits 2 Decoded PCM samples wLockDelay 512 Decoded PCM samples Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 3 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 3 Human Interface Device bInterfaceSubClass 0 No Subclass bInterfaceProtocol 0 None iInterface 0 HID Device Descriptor: bLength 9 bDescriptorType 33 bcdHID 2.01 bCountryCode 0 Not supported bNumDescriptors 1 bDescriptorType 34 Report wDescriptorLength 33 Warning: incomplete report descriptor Report Descriptor: (length is 1) Item(Main ): (null), data=none Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0008 1x 8 bytes bInterval 1 Device Status: 0x78a0 (Bus Powered) Any idea where I can go from here? It's annoying that it just powers itself off again, and the sound quality is supposed to be better when using sound via USB rather than AUX in. -- David Kastrup

7 years

[Eurorack] Expert Sleepers ES-8 USB Interface and Linux?

by Mario Lang

Hi. Quite a shot into the dark, but: Is anyone here by chance into eurorack modular and has tried the Expert Sleepers ES-8 USB Interface with Linux yet? It claims to be class compliant, but you never know... -- CYa, ⡍⠁⠗⠊⠕

7 years, 1 month

How to keep an updated "standard" linux audio system?

by Fede

I used to try to keep my software as stable as possible by avoiding upgrades for as long as possible, but it ended up being troublesome, because then you have to compile your own libraries, and things tend to go out of hand when you want to receive bug fixes from later versions. My question is: How do you people keep an updated system stable? Do you wipe your drive clean and start over every ubuntu LTS release? If you are not on a debian based distro, how do you handle the lack of a kxstudio repo? Thanks to all!

7 years, 2 months

Christmas present for self.

by Will Godfrey

I'm thinking of getting a new 'pooter for music, and also thinking of making it one of the new Ryzen ones. I don't think there is much point in going for more than quad core. The 1500X looks like a good bet 3.5 to 3.7G, and not overly expensive. On (say) an asus motherboard with on-board radeon graphics. I'm not really fussed about the graphics, but these seem to have better Linux support than Nvidea ones (especially for RT kernels). The one think I've no idea about is the sound card. I've got a positively ancient 2496 that survived 3 PCs so far, but I think it's time for an upgrade. Anyone any ideas about a well supported PCI-e one· It would be nice to have balanced IO for a start! Suggestions welcome! -- Will J Godfrey http://www.musically.me.uk Say you have a poem and I have a tune. Exchange them and we can both have a poem, a tune, and a song.

7 years, 2 months

[Music] A Case of Kaese

by jonetsu

A Case of Käse A fun jumpy track made using the free oscillator-less synth Triple Cheese (apart from the drums and the first 4 bars which is something else). Camembert électrique and glissandoz. Cheers. [url]https://soundcloud.com/nominal6/a-case-of-kase[/url]

7 years, 3 months

[Music] Off The Grid # 2

by jonetsu

This is another piece done without any BPM ticking behind. Again, smooth and relaxed, piano based, perhaps even intimate. Notes are not exactly falling precisely on the spots. Accent is given to the piano theme, with some synth bass and other synth support. Another perhaps "pensive" piece, where what was important was to capture the improvisation and not refining it ad vitam aeternam. I also think that I do not have yet the skills required to refine such a spontaneous expression while still keeping its essence. This said, mixing a solo piano is not easy at all. The pianoteq modeling even has the noises of the hammers and the sustain pedal, which makes me smile as this was played on a Novation Launchkey 49 keyboard. Enjoy. And cheers. https://soundcloud.com/nominal6/offthegrid-2

7 years, 3 months

[Music] New years cleaning - New music

by Robert Jonsson

Hi all, It's been quite a while since I last posted any songs I believe so here are three (four) of them to remedy that. Been working on these during the year and finally took some time to try and put an end to them. The songs where mostly done by myself but the last one is a collaborative adventure with a guest singer. https://soundcloud.com/cdee/robert-joo-pussel https://soundcloud.com/cdee/robert-joo-the-heist https://soundcloud.com/cdee/robert-joo-pinned Using primarily MusE (the coming 3.0 release) with various plugins, Calf , Addictive Drums, Luftikus and droves of others. -- And for good measure here's a live video we just recently released, Linux (and MusE) was only involved in finalizing the audio here but still :) https://www.youtube.com/watch?v=EBsUyxa4Sqc Have a good ending and a happy new year! Regards, Robert

7 years, 3 months

Re: [LAU] Hardware Soundcard - MOTU 624 AVB Working with Gnu/Linux - Debian 8.7

by Anders Hellquist

The thread is missing the last replies Motu did regarding this issue. They simply stated that too many people had problems when using more than 24 channels in Class Compliant mode so they had basicly put a cap on it and referred people to the Motu driver that would let People use more than 24channels. This is very unfortunate and it seems Motu doesn't really care about all Class Compliant users that did not have problems running higher. To me it is strange to put a cap and not take into account whether one is running 44k or 192 or something in between. Also I would really like to be able to use the web GUI over the USB link to save the cost of an AVB switch and still be able to running AVB between two devices. /Anders On Dec 30, 2017 7:29 PM, "Peter P." <peterparker(a)fastmail.com> wrote: * Moshe Werner <moshwe(a)gmail.com> [2017-12-30 18:26]: > So I'm having an interesting issue. > > In the Motu menu (web-app) of my 1248 I can sometimes configure the card > for 64 channels in the "Computer Setup" menu and sometimes the maximum > channel count is 24. > Very strange as all that I did was a reboot of the laptop. > Did anyone elso of the Motu owners encounter something like that? > I'm on firmware 1.2.9+1280. See this thread perhaps https://lists.linuxaudio.org/pipermail/linux-audio-user/ 2017-September/108620.html _______________________________________________ Linux-audio-user mailing list Linux-audio-user(a)lists.linuxaudio.org https://lists.linuxaudio.org/listinfo/linux-audio-user

7 years, 3 months

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Linux-audio-user December 2017