Linux-audio-dev September 2004

linux-audio-dev@lists.linuxaudio.org

90 participants
77 discussions

by Dmitry Baikov

Hello. I finally started making my pet music project and realized I need a drum synth to make some cool sounds. psindustrializer is good but also need some tr-909-style sounds. I remeber from my old windoze days I used a nice piece of software called Stomper. Does anybody know any software for linux with comparable capabilities? Or we need to write one? Stomper does not work under wine :( Thanks.

17 years, 11 months

[linux-audio-dev] Re: Drum synth

by Juhana Sadeharju

Hello. I had a couple of articles on drum synths. Check ftp://ftp.funet.fi/pub/sci/audio/devel/lad/drumsynth/ I built the circuit in a00*.jpg at the time when this article was fresh. The article b00*jpg mentions an earlier article. I will check that out at library. Hmm.. I coded a drum synth for Commodore VIC-20 at the time. VIC provided an audio chip with three oscillators, noise, and a common volume if I remember correctly. What I did was to modulate osc pitch and volume parameters with a fast and accurate (compared to Basic) assembly code. The drum sounds were assigned to the keys. This was about 1984, inspired by Yamaha's digital RX drum synths, not by analog drums. Juhana -- http://music.columbia.edu/mailman/listinfo/linux-graphics-dev for developers of open source graphics software

17 years, 11 months

[linux-audio-dev] MP3 timestretch in real time

by Suzana Mesquita de Borba Maranhao

Hi Anybody knows any software that enable MP3 timestretch in real time? I want no file conversions. In addition, I prefer a software that process the MP3 stream and not the stream MP3 after decoding process. Anybody knows any algorithm for this? Sorry by my english faults. Regards, Suzana

19 years, 6 months

[linux-audio-dev] LAC 2004 recordings now online

by Joern Nettingsmeier

hi everyone! thanks to the work of stephan römer at zkm, the recordings of the linux audio conference 2004 are now completely edited and tagged. they are being uploaded as i type. you will find them at http://linuxaudiodev.org/contrib/zkm_meeting_2004/recordings/ , the corresponding slides are at http://linuxaudiodev.org/contrib/zkm_meeting_2004/slides/ . best regards, and sorry it took so long (my responsibility), jörn ps: if you have more photos, recordings or other lac memorabilia to share, throw them my way so that i can upload them. -- "90% of all networking problems are routing problems. 9 of the remaining 10% are routing problems, but in the other direction. The final 1% might be something else, but check the routing anyway." - Anthony Stone's networking words of wisdom Jörn Nettingsmeier Lortzingstr. 11, 45128 Essen, Germany http://spunk.dnsalias.org (my server) http://www.linuxaudiodev.org (Linux Audio Developers)

19 years, 7 months

Re: [linux-audio-dev] Drum synth

by Lachlan Davison

> > > http://www.soundonsound.com/sos/Apr02/articles/synthsecrets0402.asp > > > > > > if this is translated into a galan patch a UI can be built which looks > > > very similar to drumatic. > > > > > > -- > > > torben Hohn > > > http://galan.sourceforge.net -- The graphical Audio language > > > > Torben, You are a god among men, THANKS, this is EXACTLY what i was looking for because the schematics where somewhat enigmatic for me. Thanks tons, i shall start coding it one monday! (i have an exam on monday so not earlier) Now i just have to decide on using thinksynth or galan for the prototype :-) Last time i tried galan it was too fast on my machine... a p3 650...but i'm hopeful! > > > > someone on #lad told me about that. > what do you mean with to fast ? > > do you mean galan-0.3/include/generator.h:24 > > > #define SAMPLE_RATE 48000 ??? > > my interface only does 48k and i am not proud, that its still hardcoded > but ;) > Opps, sorry, typo there.... Too slow... makes much more sense now, as in my wimpy p3 650 does not really cope with Galan too well. Simple patches seem to use a lot of cpu so i don't know how doing more complex patches in it would be. I have enough trouble running Muse and Zyn at the same time. Work on the drum synth will be starting soon, i was slowed down by my laptop catching on fire on tuesday. ;-) At this stage i'm thinking of copying the circuits for the good ones in the TR series, the non-sample based simmons, and the techniques on the SOS site for tuned drums. Anything else anyone is keen on? A drum synth they can't live without? Or any particular drum sounds? Dmitry, and I have decided on a name, but you'll here it when the code is done. Loki

19 years, 7 months

[linux-audio-dev] [ANN] Specimen v0.4.4

by Pete Bessman

Normally, I don't announce minor releases, but this is an exception. The latest Specimen has a completely redone GUI, which I hope will make using it suck a whole lot less. Downloads: www.gazuga.net/downloads.php Screenshots: www.gazuga.net/screenshots.php This version of Specimen also relies on PHAT, so be sure you have the latest version (0.2.2). PHAT: www.gazuga.net/phat.php This is a relatively ambitious endeavor, so please inundate me with bug reports. And yes, MIDI control is coming really, really soon. Seriously. --Pete

19 years, 7 months

[linux-audio-dev] Apple's distributed audio processing technology

by Kai Vehmanen

As seen on slashdot: http://www.apple.com/logic/distributedaudio.html ""Simply add one or more Macintosh systems via Ethernet (or FireWire) connections to your Logic Pro 7 system. The result is an audio and music production system with processing power that was previously unimaginable for native-based systems."" No details about the protocols used. Gigabit ethernet is recommended for "the best performance". Pretty interesting stuff to say the least. -- http://www.eca.cx Audio software for Linux!

19 years, 7 months

[linux-audio-dev] Logic 7: Distributed Audio over GigE

by lazzaro

Hi everyone, Of interest to the networking discussions here ... http://www.apple.com/logic/distributedaudio.html --- John Lazzaro http://www.cs.berkeley.edu/~lazzaro lazzaro [at] cs [dot] berkeley [dot] edu ---

19 years, 7 months

Re: [linux-audio-dev] M-Audio Sonica/Ozone/MobilePre/Transit firm ware loader now works

by Stephen Hassard

I just played around with my Sonica a little more (on i386) and found that after the firmware upload was attempted, madfuload was unable to reset the device. It looks like the device auto-reset, as the USB device changed (increment by one). The usb IDs have also changed. Here's a nice big log. ----- lsusb -v (before) Bus 001 Device 010: ID 0763:2805 Midiman Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.00 bDeviceClass 254 Application Specific Interface bDeviceSubClass 1 Device Firmware Update bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x0763 Midiman idProduct 0x2805 bcdDevice 1.00 iManufacturer 1 iProduct 2 iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 25 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x40 Self Powered MaxPower 200mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 254 Application Specific Interface bInterfaceSubClass 1 Device Firmware Update bInterfaceProtocol 0 iInterface 3 --- lsusb -v (after) Bus 001 Device 011: ID 0763:2005 Midiman Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 8 idVendor 0x0763 Midiman idProduct 0x2005 bcdDevice 1.01 iManufacturer 1 iProduct 2 iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 277 bNumInterfaces 2 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 MaxPower 200mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 1 Audio bInterfaceSubClass 1 Control Device bInterfaceProtocol 0 iInterface 2 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 10 bDescriptorType 36 bDescriptorSubtype 6 (FEATURE_UNIT) bUnitID 2 bSourceID 1 bControlSize 1 bmaControls( 0) 0x01 Mute bmaControls( 1) 0x02 Volume bmaControls( 2) 0x02 Volume iFeature 0 AudioControl Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 3 (OUTPUT_TERMINAL) bTerminalID 3 wTerminalType 0x0301 Speaker bAssocTerminal 0 bSourceID 2 iTerminal 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 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 9 Transfer Type Isochronous Synch Type Adaptive Usage Type Data wMaxPacketSize 0x0240 bytes 576 once bInterval 1 bRefresh 0 bSynchAddress 0 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x01 Sampling Frequency bLockDelayUnits 1 Milliseconds wLockDelay 1500 Milliseconds AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 1 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 38 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 3 bBitResolution 24 bSamFreqType 10 Discrete tSamFreq[ 0] 8000 tSamFreq[ 1] 11025 tSamFreq[ 2] 12000 tSamFreq[ 3] 22050 tSamFreq[ 4] 24000 tSamFreq[ 5] 32000 tSamFreq[ 6] 44100 tSamFreq[ 7] 48000 tSamFreq[ 8] 88200 tSamFreq[ 9] 96000 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 2 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 9 Transfer Type Isochronous Synch Type Adaptive Usage Type Data wMaxPacketSize 0x0180 bytes 384 once bInterval 1 bRefresh 0 bSynchAddress 0 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x01 Sampling Frequency bLockDelayUnits 1 Milliseconds wLockDelay 1500 Milliseconds AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 1 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 38 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 2 bBitResolution 16 bSamFreqType 10 Discrete tSamFreq[ 0] 8000 tSamFreq[ 1] 11025 tSamFreq[ 2] 12000 tSamFreq[ 3] 22050 tSamFreq[ 4] 24000 tSamFreq[ 5] 32000 tSamFreq[ 6] 44100 tSamFreq[ 7] 48000 tSamFreq[ 8] 88200 tSamFreq[ 9] 96000 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 3 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 9 Transfer Type Isochronous Synch Type Adaptive Usage Type Data wMaxPacketSize 0x0180 bytes 384 once bInterval 1 bRefresh 0 bSynchAddress 0 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x01 Sampling Frequency bLockDelayUnits 1 Milliseconds wLockDelay 1500 Milliseconds AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 1 bDelay 1 frames wFormatTag 8193 IEC1937_AC-3 AudioStreaming Interface Descriptor: bLength 38 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 3 (FORMAT_TYPE_III) bNrChannels 2 bSubframeSize 2 bBitResolution 16 bSamFreqType 10 Discrete tSamFreq[ 0] 8000 tSamFreq[ 1] 11025 tSamFreq[ 2] 12000 tSamFreq[ 3] 22050 tSamFreq[ 4] 24000 tSamFreq[ 5] 32000 tSamFreq[ 6] 44100 tSamFreq[ 7] 48000 tSamFreq[ 8] 88200 tSamFreq[ 9] 96000 --- ./madfuload -D /proc/bus/usb/001/007 -f ma005101.bin -v -v -3 ma005101.bin: 5959 bytes read successfully reading device descriptor ... interface descriptor 0:0 DFU interface is 0 DFU descriptor found transfer size is 64 waiting 32 ms cannot reset device: (19) No such device --- dmesg output usb 1-1: new full speed USB device using address 7 usb 1-1: reset full speed USB device using address 7 usb 1-1: device firmware changed usb 1-1: USB disconnect, address 7 usb 1-1: new full speed USB device using address 8 Thanks, Steve Hassard Clemens Ladisch wrote: > I wrote: > >>Stephen Hassard wrote: >> >>>Segmentation fault >>> >>>I'm running an AMD64 kernel in 64bits mode. >> >>This looks as if I'm using a wrong data type in some structure >>(probably usbdevfs_ctrltransfer). > > > This was indeed the problem. > > I've released a new version (0.4): > http://sourceforge.net/project/showfiles.php?group_id=87777&package_id=94170 > > > HTH > Clemens >

19 years, 7 months

[linux-audio-dev] VP kernels

by Dmitry Baikov

Hello! I'm not subscribed to LKML, so positng here. Anyone tried 2.6.9-rc2-mm1-VP-S3? In two words: no luck. i8042 does not work at all (have an usb kbd hopely). Nvidia-61.11 does not modprobe (unresolved symbols), but builds . 2.6.9-rc1-VP-S0 works fine. except for few lockups after writing cds (may be not kernel, but xorg-6.8.0). Any comments? -- Dmitry.

19 years, 7 months

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Linux-audio-dev September 2004