Linux-audio-dev March 2014

linux-audio-dev@lists.linuxaudio.org

20 participants
26 discussions

by Frank Kober

Hi, QMidiArp 0.5.2 has just seen the light of the day. It brings mainly two improvements. One is a comeback, that of tempo changes on the fly, and that now includes also tempo changes of a potential Jack Transport master. Also the Jack Transport starting position is finally taken into account, so that QMidiArp should be in sync also when starting the transport master not at zero. The second one is Non Session Manager support, mainly thanks to the work done by Roy Vegard Ovesen! Note that for compiling in NSM support you will now need liblo as dependency. Enjoy, and enjoy LAC in Graz this year Frank ________________________________ QMidiArp is an advanced MIDI arpeggiator, programmable step sequencer and LFO. Everything is on http://qmidiarp.sourceforge.net qmidiarp-0.5.2 (2013-05-09) New Features o Tempo changes are again possible while running, both manually or by a Jack Transport Master o Jack Transport position is now taken into account when starting, QMidiArp used to start always at zero o Muting and sequencer parameter changes can be deferred to pattern end using a new toolbutton o Modules in the Global Storage window have mute/defer buttons o Global Storage location switches can be set to affect only the pattern o Non Session Manager support with "switch" capability (thanks to Roy Vegard Ovesen) General Changes o NSM support requires liblo development headers (liblo-dev package)

10 years, 1 month

Re: [LAD] Call for testing (final): ALSA driver for some firewire devices

by Takashi Sakamoto

Hi Daniel, I notice that I cannot help you without enough logs with which I can realize what happens. At lease, 'verbose' options for aplay/arecord, '#' nodes in /proc/asound/cardX and dmesg. Additionally, would you please add 'LANG=C' when you get output from software. I cannot read Spanish language... > hi, it does not work. Try in following steps: 1. $ arecord /tmp/test.wav -D hw:UFX1604 -c 16 (I expected you receive 'Available formats' output) 2. $ arecord /tmp/test.wav -D hw:UFX1604 -c 16 -f (here the format, maybe S32_LE) (I expected you receive 'rate is not accurate' output) 3. $ arecord /tmp/test.wav -D hw:UFX1604 -c 16 -f (the same above) -r (got rate) (I expected it will run correctly.) I hope you to do these test when killing pulseaudio. The way is here: https://wiki.ubuntu.com/PulseAudio/Log Regards Takashi Sakamoto o-takashi(a)sakamocchi.jp

10 years, 5 months

OpenAV Productions : Sorcer

by Harry van Haaren

Hey Everybody, I'm happy to announce OpenAV productions: http://openavproductions.com OpenAV productions is a label under which I intend to release my linux-audio software projects. The focus of the software is on the workflow of creating live-electronic music and video. The release system for OpenAV productions is one based on donations and time, details are available on http://openavproductions.com/support Sorcer is a wavetable synth, and is ready for release. Check out the interface and demo reel on http://openavproductions.com/sorcer Greetings from the LAC, -Harry

10 years, 6 months

itop

by elboulangero

Hello everyone, lately I had to fight big XRUN troubles, and thanks to this forum I finally solved that. This excellent thread saved me: http://linuxaudio.org/mailarchive/lau/2012/9/5/192706 On my long quest, I tried to see a little bit more what happened with the IRQs on my system. I searched for a kind of 'top' utility to monitor the interrupts, but the only apps I found were either deprecated, or missed some cool features. So, I ended up writing my own tool to monitor the file /proc/interrupts. It's available a this address: https://gitorious.org/elboulangero/itop As its name indicates, it behaves pretty much like top, but for interrupts. It's quite a simple thing, that I tried to enhance a bit with some cool features: + refresh period can be specified. + two display modes: display interrupts for every CPU, or only a sum of all CPU. + display every interrupt (sorted like /proc/interrupts), or only active interrupts (sorted by activity). + in case the number of interrupts changes during the execution of itop (due to a rmmod/modprobe), it's handled without any fuss. + command-line options are also available as hotkeys for convenience. + at last, the program display a summary on exit. The idea is that this summary could be copied/pasted in emails to help debugging. If anyone is interested, feel free to try and comment ! Cheers

10 years, 7 months

Support for Steinberg UR22 (Yamaha USB chipset 0499:1509)?

by cullinan＠rocketmail.com

Hi, there! I just got a Steinberg UR22 USB<->Audio / MIDI interface for my semi-prof. DJ work. I am working on Linux (only), but wanted to give this new product a chance. Well, it's basically a nice device but with an Yamaha chipset in it which seem unfortunately not supported from the latest (3.7.9) linux kernel(s). My questions are: - How likely is it to get this device fully supported on linux? - What needs to be done to get this device fully supported? I am an electrical engineer and did some linux device driver development in the past on some DMA stuff, but I am quite new to linux audio. But I am willing to help somewhere... I could try to reverse-engineer the USB stuff on Windows with the usbmon/usbsnoop/libusb things... But if it's too much work, to get it working, I could also just decide to send it back to Steinberg and thank them for not supporting Linux with their products. The USB information I could get is: $ aplay -l doesn't list that device $ lsusb ... Bus 002 Device 016: ID 0499:1509 Yamaha Corp. ... (See the more comprehensive $ lsusb -v below...) Related USB devices are: 0499:1501 Yamaha 0499:1507 Yamaha THR10 0499:1509 Yamaha Steinberg UR22 (what I am talking about) 0499:150c Yamaha THR10C Related search resuls are: Getting a Steinberg CI1 USB audio interface to work http://ubuntuforums.org/showthread.php?t=1696336 Yamaha THR10 amp / USB2.0 audio interface http://linux-audio.4202.n7.nabble.com/Yamaha-THR10-amp-USB2-0-audio-interfa… Thank you, Clemens (different one as in last link) -----8<----- $ lsusb -v -d 0499:1509 Bus 002 Device 014: ID 0499:1509 Yamaha Corp. Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 255 Vendor Specific Class bDeviceSubClass 0 bDeviceProtocol 255 bMaxPacketSize0 64 idVendor 0x0499 Yamaha Corp. idProduct 0x1509 bcdDevice 1.00 iManufacturer 1 Yamaha Corporation iProduct 2 Steinberg UR22 iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 442 bNumInterfaces 5 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xc0 Self Powered MaxPower 500mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 1 bInterfaceProtocol 0 iInterface 0 ** UNRECOGNIZED: 0a 24 01 00 01 34 00 02 01 02 ** UNRECOGNIZED: 0c 24 02 01 01 01 00 02 03 00 00 00 ** UNRECOGNIZED: 09 24 03 02 01 03 00 01 00 ** UNRECOGNIZED: 0c 24 02 03 03 06 00 02 03 00 00 00 ** UNRECOGNIZED: 09 24 03 04 01 01 00 03 00 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 2 bInterfaceProtocol 0 iInterface 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 1 bNumEndpoints 1 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 2 bInterfaceProtocol 0 iInterface 0 ** UNRECOGNIZED: 07 24 01 01 01 01 00 ** UNRECOGNIZED: 0e 24 02 01 02 03 18 02 44 ac 00 80 bb 00 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x07 EP 7 OUT bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x002a 1x 42 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 2 bNumEndpoints 1 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 2 bInterfaceProtocol 0 iInterface 0 ** UNRECOGNIZED: 07 24 01 01 01 01 00 ** UNRECOGNIZED: 0e 24 02 01 02 03 18 02 88 58 01 00 77 01 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x07 EP 7 OUT bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x004e 1x 78 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 3 bNumEndpoints 1 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 2 bInterfaceProtocol 0 iInterface 0 ** UNRECOGNIZED: 07 24 01 01 01 01 00 ** UNRECOGNIZED: 0e 24 02 01 02 03 18 02 10 b1 02 00 ee 02 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x07 EP 7 OUT bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x0096 1x 150 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 2 bInterfaceProtocol 0 iInterface 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 1 bNumEndpoints 1 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 2 bInterfaceProtocol 0 iInterface 0 ** UNRECOGNIZED: 07 24 01 04 01 01 00 ** UNRECOGNIZED: 0e 24 02 01 02 03 18 02 44 ac 00 80 bb 00 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x86 EP 6 IN bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x002a 1x 42 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 2 bNumEndpoints 1 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 2 bInterfaceProtocol 0 iInterface 0 ** UNRECOGNIZED: 07 24 01 04 01 01 00 ** UNRECOGNIZED: 0e 24 02 01 02 03 18 02 88 58 01 00 77 01 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x86 EP 6 IN bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x004e 1x 78 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 3 bNumEndpoints 1 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 2 bInterfaceProtocol 0 iInterface 0 ** UNRECOGNIZED: 07 24 01 04 01 01 00 ** UNRECOGNIZED: 0e 24 02 01 02 03 18 02 10 b1 02 00 ee 02 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x86 EP 6 IN bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x0096 1x 150 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 3 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 3 bInterfaceProtocol 255 iInterface 0 ** UNRECOGNIZED: 07 24 01 00 01 24 00 ** UNRECOGNIZED: 06 24 02 02 01 00 ** UNRECOGNIZED: 09 24 03 02 01 01 01 01 00 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x01 EP 1 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 4 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 255 Vendor Specific Subclass bInterfaceProtocol 255 Vendor Specific Protocol iInterface 0 ** UNRECOGNIZED: 07 24 01 00 01 24 00 ** UNRECOGNIZED: 06 24 02 02 01 00 ** UNRECOGNIZED: 09 24 03 02 01 01 01 01 00 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x84 EP 4 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Device Qualifier (for other device speed): bLength 10 bDescriptorType 6 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 bNumConfigurations 1 Device Status: 0x0000 (Bus Powered) -----8<-----

10 years, 7 months

Re: [LAD] Input/output error alsa api

by Thiago Carísio

Hi Harry, Do you know if there is some rule to compiling using librtaudio? Because, there is an error..and i don't know what's wrong. I'm using g++ 4.7.2 and i'm compiling using: $ g++<programname.cpp> -o <programname> The error is: undefined reference to 'RtAudio::RtAudio(RtAudio::Api)' i'm including the lib in the program, normally! 2014-03-29 11:11 GMT-03:00 Thiago Carísio <thiago.carisio(a)gmail.com>: > Hi, Harry! > > I don't know...hehe...i'm just was searching for api's and alsa seemed to > be a good ideia. But, it's a bit difficult. I'm gonna take a look at this > others api's > > Thanks! > > > 2014-03-29 6:07 GMT-03:00 Harry van Haaren <harryhaaren(a)gmail.com>: > > Hi Thiago, >> >> Slightly other question: are you *sure* you want to write directly using >> the ALSA API? >> Generally, writing a JACK[1] client (for linux-pro-audio use-cases), or >> RtAudio[2] is a better idea, and easier in my opinion... >> >> They're easier to write to, and abstract away some of the details of the >> soundcard settings / channels etc. >> HTH, -Harry >> >> [1] >> https://github.com/jackaudio/example-clients/blob/master/simple_client.c >> [2] https://www.music.mcgill.ca/~gary/rtaudio/ >> >> >> On Sat, Mar 29, 2014 at 5:00 AM, Thiago Carísio <thiago.carisio(a)gmail.com >> > wrote: >> >>> Hi! I am Thiago and i'm starting to use the alsa api. I'm testing one >>> function to make the sound capture and i got this input/output error. I >>> don't get it why this is happening...so, please...some kind soul can help >>> me? >>> >>> Thanks >>> >>> _______________________________________________ >>> Linux-audio-dev mailing list >>> Linux-audio-dev(a)lists.linuxaudio.org >>> http://lists.linuxaudio.org/listinfo/linux-audio-dev >>> >>> >> >

10 years, 7 months

Re: [LAD] NetJack question

by Paul Davis

On Mon, Feb 24, 2014 at 12:48 PM, David J Myers < david.myers(a)amg-panogenics.com> wrote: > 0.121.2 is the version I got from ubuntu with apt-get install. > > I removed that version and downloaded and built 0.124.1, however when I > now try to run > > jackd -d alsa > > I get back > > jackd: unknown driver 'alsa' > > > > What's going on? > Your system is missing the development version of the ALSA library. So JACK was built without ALSA support. What version of Ubuntu are you using? I am unable to believe that 0.121 is the latest version available for any reasonably recent version of that distro. --p

10 years, 7 months

LAC'14 program announcement

by Robin Gareus

Hi all, We're excited about the upcoming Linux Audio Conference, featuring a tightly packed diverse schedule with 77 events by over 100 persons! The conference schedule has just been published at http://lac.linuxaudio.org/2014/program Apart from presentations, there are workshops, a poster-session and five concerts in 3 days. The 4th day of the conference is dedicated to an excursion: http://lac.linuxaudio.org/2014/excursion a simple overview of the complete schedule can be found in the printable version of the program. If you want to attend and have not yet done so, please register at http://lac.linuxaudio.org/2014/registration Looking forward to seeing you all in May at the ZKM. yours truly, robin - LAC'14 team

10 years, 7 months

Input/output error alsa api

by Thiago Carísio

Hi! I am Thiago and i'm starting to use the alsa api. I'm testing one function to make the sound capture and i got this input/output error. I don't get it why this is happening...so, please...some kind soul can help me? Thanks

10 years, 7 months

(no subject)

by Raphaël Mouneyres

hello, thanks to nama and ML archive, i now know about https://github.com/navicore/Jacks perl api I'm missing a callback to know the current transport position (either in seconds or BBT). Is there any way to get it from perl ? (i'm currently having trouble to make jack.osc doing the same job) thanks, Raphaël

10 years, 7 months

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Linux-audio-dev March 2014