Linux-audio-user April 2013

linux-audio-user@lists.linuxaudio.org

111 participants
126 discussions

LiSP (Linux Show Player) - player specifically designed for stage productions

by Francesco Ceruti

I'm happy to announce the release of LiSP (Linux Show Player)! "LiSP (Linux Show Player)" is a sound player specifically designed for stage productions. The goal of the project is to provide a stable and complete playback software for musical plays, theatre shows and similar. Features: - Button matrix user interface, suited for touchscreens; - Multiple tracks playback; - Sound FX: gain, equalization, pitch shift, speed control and compression applied in real time on each track - Peak and ReplayGainnormalization - Remote control over IP of slave/backup PC; "LiSP (Linux Show Player)" is developed in Python and based on GStreamer and PyQt. "LiSP (Linux Show Player)" is available at: http://code.google.com/p/linux-show-player/ Please report bugs using the issue tracker: http://code.google.com/p/linux-show-player/issues/list If you're a developer and want to contribute to "LiSP (Linux Show Player)", join the project. Thanks. P.s. Probably I'll create a (google) group for developers and one for requests and suggestions from users.

12 years

Fwd: Re: Raspberry Pi and real-time, low-latency audio

by Nicola

Il 18/04/2013 19:26, Jeremy Jongepier ha scritto: > On 04/18/2013 02:59 PM, Nicola wrote: >> Hi, thanks for sharing. >> The idea is simply brilliant and it works quite smoothly following the >> wiki[1] (Thanks again Jeremy!), i've got a UA25EX[2] and a Terratec >> Aureon dual-usb[3]. > > Hi Nicola, > > You're welcome! To me the RPi is just another device running Linux. > And if it runs Linux it can run JACK and some of my favorite software. > I'm sometimes baffled by the immense detour people are taking just to > get 8 note polyphony out of the RPi for instance. Or using some > real-time effects. Or building a drum sequencer. All the stuff is > already there! But no, apparently they prefer to reinvent the wheel. That's great, "keep it simple" i should say...that's why i think it's brilliant! >> Just a couple of things i noticed: >> >> 1)Using the nexus7 power adaptor everything works fine, it's a 5w 2.0A. >> 2)if you run jack with following command as the wiki suggested "jackd >> -P70 -p16 -t2000 -dalsa -dhw:UA25 -p128 -n3 -r44100 -s" make sure to add >> the background "&" at the end of the line, without this the sound was >> lousy and glitchy, at least for my UA25EX. > > So if you don't run it in the background sound is lousy and glitchy? > That's weird as it shouldn't make a difference? I did find that > raising JACK's rtprio even more (I'm now using 84) decreases the > number of glitches. yeah, that's what happened to me and i still don't know why. I'll try to increase the rtprio as well, good tip, thanks! > >> 3)Using this usb wireless adapter[4], so in a headless fashion, i had >> many jack's disconnection no matter what frames/periods i choose.Any >> suggestion to improve it? > > At the moment, no. I don't have any experience with WiFi dongles and > the RPi. I should give it a try. "Unbinding" the device to the controller it's not a good idea i suppose,the PI shares both usb ports with same controller... >> 4)I really love the tubescreamer in guitarix, it sounds GREAT! > > It sure does. I for one can't do without the Treble Booster though :) > >> 5)I've got my PI amp now saved in a separate sd card, now i'm able to >> switch my pi from a server into an amp by just replacing the sd card, >> how lovely it is!? >> >> p.s. I was thinking to install Ubuntu on my nexus7 to control Guitarix >> (headless through ssh -X) with the touch screen!!! >> > > Great idea! I've got a bricked tablet lying around too and supposedly > it can run Ubuntu too. Keep us posted on anything that comes out of this! Maybe there's no need to install Ubuntu. I found out that there are 2 apps: "Connectbot" and "X server" in the market that that may do the job with android. Connectbot doesn't provide the "-X" option so we should set up the DISPLAY variable accordingly with the ip-port on the X server app. Maybe i'm just wasting my time but i will give it a try... > > Jeremy > >> [1]http://wiki.linuxaudio.org/wiki/raspberrypi >> [2]http://www.rolandus.com/products/details/970 >> [3]http://www.amazon.co.uk/Terratec-Aureon-Dual-USB-Notebook/dp/B000WL23KC/ref=sr_1_1?ie=UTF8&qid=1366289839&sr=8-1&keywords=terratec+aureon+dual+usb >> >> >> [4]http://www.edimax.co.uk/en/produce_detail.php?pd_id=328&pl1_id=1&pl2_id=44 >> >> >> >> Nicola > > _______________________________________________ > Linux-audio-user mailing list > Linux-audio-user(a)lists.linuxaudio.org > http://lists.linuxaudio.org/listinfo/linux-audio-user -- "Happiness only real when shared" C. J. McCandless

12 years

"band in a box" solution for linux?

by Rusty Perez

Hi folks, The question earlier today about a stage worthy multi-track backing track solution made me think of "Band-In-A-Box" a windows tool for creating style bassed tracks. I also have an OLD!!! Roland arranger keyboard which does something similar. Is there an equivalent program for Linux which has banks of styles, and you input chord sequences to be played by the "band?" Thanks! Rusty

12 years, 1 month

Soundcard DSP2000 is not recognized any more

by Chris Bungue

Since two weeks I have a problem with my soundcard DSP2000 C-Port.(Hoontech) When I start the computer the soundcard is not recognized by the system. Sometimes it works when I restart the computer. But today I try to reboot the machine four times and the card is still not recognized. I haven't hat those problems before. The DSP2000has worked without problems for the last two years. I'm on ubuntu 12.04 kernel 3.8.0-14-lowlatency with KX Studio. The power LED is on, but the other four LEDs for the channels are out. I have try to start the driver in terminal: sudo modprobe snd_ice1712 but nothing happens. Any ideas? thanks for help chris **

12 years, 1 month

delta 1010 (yes) / delta 2496 (no)

by David Santamauro

Hi, although sidetracked by life for a while, I finally got around to rebuilding my linux audio box. It's a stock fedora 18: Linux faure 3.8.5-201.fc18.x86_64 #1 SMP GIGABYTE GA-Z68X Intel(R) Core(TM) i7-2600 CPU @ 3.40GHz 16GB RAM According to lspci -v, recognized are ... internal HDAC 00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05) Subsystem: Giga-byte Technology Device a102 Flags: bus master, fast devsel, latency 0, IRQ 48 Memory at fbff4000 (64-bit, non-prefetchable) [size=16K] Capabilities: <access denied> Kernel driver in use: snd_hda_intel ... an HDMI HDAC (nvidia) 02:00.1 Audio device: NVIDIA Corporation High Definition Audio Controller (rev a1) Subsystem: Device 196e:0877 Flags: bus master, fast devsel, latency 0, IRQ 18 Memory at faffc000 (32-bit, non-prefetchable) [size=16K] Capabilities: <access denied> Kernel driver in use: snd_hda_intel .. the delta 1010 and 2496 05:00.0 Multimedia audio controller: VIA Technologies Inc. ICE1712 [Envy24] PCI Multi-Channel I/O Controller (rev 02) Subsystem: VIA Technologies Inc. M-Audio Delta Audiophile 2496 Flags: medium devsel, IRQ 19 I/O ports at dfa0 [size=32] I/O ports at dff0 [size=16] I/O ports at dfe0 [size=16] I/O ports at df40 [size=64] Capabilities: <access denied> 05:01.0 Multimedia audio controller: VIA Technologies Inc. ICE1712 [Envy24] PCI Multi-Channel I/O Controller (rev 02) Subsystem: VIA Technologies Inc. M-Audio Delta 1010 Flags: bus master, medium devsel, latency 32, IRQ 16 I/O ports at df80 [size=32] I/O ports at dfd0 [size=16] I/O ports at dfc0 [size=16] I/O ports at df00 [size=64] Capabilities: <access denied> Kernel driver in use: snd_ice1712 All is well with every device except the delta 2496 $ cat /proc/asound/cards 0 [M1010 ]: ICE1712 - M Audio Delta 1010 M Audio Delta 1010 at 0xdf80, irq 16 1 [PCH ]: HDA-Intel - HDA Intel PCH HDA Intel PCH at 0xfbff4000 irq 48 2 [K61 ]: USB-Audio - K61 KORG INC. K61 at usb-0000:00:1a.0-1.5, full speed 3 [NVidia ]: HDA-Intel - HDA NVidia HDA NVidia at 0xfaffc000 irq 18 I've shuffled the cards around the slots to no avail (only have 2 PCI slots). Could it be because they share the same bus (05) that somehow they don't work together? Also, regardless of which slot the physical cards are inserted into, only the delta 1010 is ever exposed by ALSA. To be sure, I also confirmed that the 2496 does indeed work by inserting it into a different test box. Any insight would be appreciated. David

12 years, 1 month

Missing?

by Folderol

Has anyone been able to email Jeremy Jongepier recently? I've tried to contact him via my nomal address and me sourceforge one (don't often use that). Both of these get rejected by a spam trap :( -- 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.

12 years, 1 month

Website change

by Folderol

As well as ogg and mp3 download links my site has a minimal in-line player. Seeing as almost all browsers have their own embedded player these days I'm thinking of removing mine. This will not only get rid of flash, but also the javascript that supports it (and nothing else). What do people think? -- 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.

12 years, 1 month

echo3g

by İzlem Gözükeleş

Hello, We use Echo Layla 3G on HP Z400 workstations with Debian Squeeze (alsa 1.0.23) for two years. Sometimes we get annoying timeout errors (wait_handshake(): Timeout waiting for DSP). These errors mostly occur when the computer had been idle more than one or two days. Very very rarely we had timeout error while the computer was playing. 1. Computer's sleep mode is disabled from Gnome's power management. 2. Errors mostly occur while it had been idle for a along time. However, we couldn't predict the exact time. In other words, we can't say that the errors occur after 24 hour or 36 hour idle time. 3. Besides Echo Layla 3G, we have another soundcard. After the time out error, although Layla doesn't work, there aren't any problems for the other soundcard. 4. There aren't any information about the error, just,"wait_handshake(): Timeout waiting for DSP" lines. 5. We tried increasing timeout value for the echo3g driver. But nothing changed. What can we do? The error message (wait_handshake(): Timeout waiting for DSP) is very limited. How can we find the real cause? thanks

12 years, 1 month

Re: [LAU] Soundcard DSP2000 is not recognized any more

by Len Ovens

On Mon, April 29, 2013 2:05 pm, Chris Bungue wrote: > Since two weeks I have a problem with my soundcard DSP2000 > C-Port.(Hoontech) > When I start the computer the soundcard is not recognized by the > system. > Sometimes it works when I restart the computer. But today I try to reboot > the machine four times and the card is still not recognized. I haven't hat > those problems before. The DSP2000has worked without problems for the > last > two years. > I'm on ubuntu 12.04 kernel 3.8.0-14-lowlatency with KX Studio. > The power LED is on, but the other four LEDs for the channels are out. > > I have try to start the driver in terminal: > sudo modprobe snd_ice1712 > but nothing happens. > > Any ideas? Not really any ideas... except I think the dsp2000 has a unit selection switch on it that has to be set as the first unit (not sure if that is unit 0 or unit 1) with dip switches. Maybe check that hasn't be moved by accident. -- Len Ovens www.OvenWerks.net

12 years, 1 month

USB cassette player only recognized as mono device

by Jim Henderson

I've just purchased an inexpensive USB cassette player in order to archive/preserve some audio cassette recordings of some interviews I did years ago, and I've run into a slight issue with the detection of the device. The device identifies as a JMTek USB Audio Device (Vendor 0c76, Device 160a). I'm using openSUSE 12.2. When I plug the device in and connect to it with Audacity, and I only get a mono channel (rather than a stereo setup). Looking at the output of "lsusb -v", I see that the input terminal is identified as a microphone with one channel. (Output of lsusb -v is at the end of this post) If I start a Windows XP VM in Virtualbox and connect the device to that, it is recognized (in Windows) as a stereo device, and I can record left and right channels, so the hardware should be recognized as having stereo channels via USB. There are no special drivers installed for the Windows VM (it was just "plug and play"). I'd much rather not have to boot up a Windows VM in order to record audio from this device. I also would prefer to not use line-in, as I almost always have ended up with a 60 cycle hum recording that way, and I don't get that if I record over the USB connection (the USB connection also powers the device). snd_usb_audio is automatically loading when I plug the device in. Are there any tricks that I might apply to getting this device recognized properly or to diagnose why it's being identified as a mono device? Thanks, Jim --- output of "lsusb -v" for this device --- Bus 003 Device 007: ID 0c76:160a JMTek, LLC. Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x0c76 JMTek, LLC. idProduct 0x160a bcdDevice 1.00 iManufacturer 0 iProduct 1 USB Audio Device iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 156 bNumInterfaces 3 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 (Bus Powered) MaxPower 100mA 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 46 bInCollection 1 baInterfaceNr( 0) 1 AudioControl Interface Descriptor: bLength 12 bDescriptorType 36 bDescriptorSubtype 2 (INPUT_TERMINAL) bTerminalID 2 wTerminalType 0x0201 Microphone bAssocTerminal 0 bNrChannels 1 wChannelConfig 0x0001 Left Front (L) iChannelNames 0 iTerminal 0 AudioControl Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 3 (OUTPUT_TERMINAL) bTerminalID 18 wTerminalType 0x0101 USB Streaming bAssocTerminal 2 bSourceID 33 iTerminal 0 AudioControl Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 5 (SELECTOR_UNIT) bUnitID 33 bNrInPins 1 baSource( 0) 50 iSelector 0 AudioControl Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 6 (FEATURE_UNIT) bUnitID 50 bSourceID 2 bControlSize 1 bmaControls( 0) 0x43 Mute Control Volume Control Automatic Gain Control bmaControls( 1) 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 18 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 26 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 1 bSubframeSize 2 bBitResolution 16 bSamFreqType 6 Discrete tSamFreq[ 0] 48000 tSamFreq[ 1] 44100 tSamFreq[ 2] 32000 tSamFreq[ 3] 22050 tSamFreq[ 4] 11025 tSamFreq[ 5] 8000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x0064 1x 100 bytes bInterval 1 bRefresh 0 bSynchAddress 0 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x01 Sampling Frequency bLockDelayUnits 0 Undefined wLockDelay 0 Undefined Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 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 1.00 bCountryCode 0 Not supported bNumDescriptors 1 bDescriptorType 34 Report wDescriptorLength 50 Report Descriptors: ** UNAVAILABLE ** Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0004 1x 4 bytes bInterval 8 Device Status: 0x0000 (Bus Powered) --- snip --- -- Jim Henderson Please keep on-topic replies on the list so everyone benefits

12 years, 1 month

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Linux-audio-user April 2013