Linux-audio-dev August 2011

linux-audio-dev@lists.linuxaudio.org

28 participants
26 discussions

by louis cherel

Hello everyone, Every one knows Yoshimi, the fork of ZynAddSubFx. One thing was lacking to yoshimi to be perfect: to be nearly fully controlled by midi controls ( no OSC, sorry ). ZynAddSubFx had possibilities to control a few parameters with complicated NRPN, Yoshimi recently had ( in the test versions ) some features too. But now I'm proud to announce you the work of licnep ( not me, I'm just a bug reporter ) who made the "midiLearn" function for yoshimi. It's not stable for now because it's recent, and not full, but here are the present features: * Control System effects, Part Insert Effects * Master/Part Volume, Pan, System Effect Sends * Most of ADsynth parameters * Add/Remove controller * detect the channel and the number * reset the knob ( its position ) I think it's a feature that's very useful and could help many yoshimi/zyn users. To use it, that's simple: connect your controller to yoshimi, right-click on a blue knob ( yellow are ones which are not supported for now ) and click "midi Learn" move your controller, it detects automatically the controller. To see and modify controllers, go to the Yoshimi> MIDI controllers menu. To erase midi control of a knob, simply right click on it and click on "remove midi control" Here is the gitHub repository: https://github.com/licnep/yoshimi To download and install it, follow the explications link ( gitHub ): https://github.com/licnep/yoshimi/wiki/How-to A light page to understand how to control others not implemented controllers: https://github.com/licnep/yoshimi/wiki/Source-code Pages to follow the news of the project: Facebook: https://www.facebook.com/pages/Yoshimi-midi-learn/224823617534934 Twitter: http://twitter.com/#!/YoshimiMIDI So if you're interrested, all bug requests are deeply recommended. Cheers, Louis CHEREL.

12 years, 8 months

[ANN] WIP - Jass, a Jack Simple Sampler

by Florian Paul Schmidt

Hi, I decided, on a whim [release early, release often], that the code is somewhat usable now. Grab the software via git clone https://github.com/fps/jass.git then read the INSTALL file.. https://github.com/fps/jass/blob/master/INSTALL There might be quite a few kinks and development will stay active the next few days.. Patches for features/fixes gladly accepted.. A screenshot from just an hour ago or so: http://i.imgur.com/xygf6.png Quick Tut: Shift-Doubleclick to audit a sample Doubleclick to load it.. Known Bugs: - Velocity mapping still broken (at least the GUI part) TODO: - Add nice piano widget to set note ranges and central note.. - Actually use libsamplerate to convert sample to jack samplerate Regards, Flo

12 years, 8 months

Re: [LAD] [LAU] mp3tom4a via find and ffmpeg

by guerrier

On Fri, Aug 12, 2011 at 1:36 PM, David <dplist(a)free.fr> wrote: > On Fri, 12 Aug 2011 13:10:58 -0400 > guerrier <guerrier(a)gmail.com> wrote: > >> hello >> >> can someone please help me with this? >> >> i can find all the mp3s in a directory and its sub-directories with >> this: >> >> find -name "*.mp3" >> >> i can also ffmpeg a mp3 to m4a with this: >> >> ffmpeg -i INPUT.mp3 -y -acodec libfaac -ab 192k OUTPUT.m4a >> >> now, i would like to pipe all that find finds into ffmpeg. > > You could try something like this : > > find . -name '*.mp3' | while read f > do > ffmpeg -i "$f" -y -acodec copy -ab 192k "${f%.mp3}.m4a" > done > > That should properly handle filenames containing spaces. > > HTH > > -- David > _______________________________________________ > Linux-audio-user mailing list > Linux-audio-user(a)lists.linuxaudio.org > http://lists.linuxaudio.org/listinfo/linux-audio-user > Many thanks. I'll try it and report back. guerrier

12 years, 8 months

mp3tom4a via find and ffmpeg

by guerrier

hello can someone please help me with this? i can find all the mp3s in a directory and its sub-directories with this: find -name "*.mp3" i can also ffmpeg a mp3 to m4a with this: ffmpeg -i INPUT.mp3 -y -acodec libfaac -ab 192k OUTPUT.m4a now, i would like to pipe all that find finds into ffmpeg. thanks guerrier

12 years, 8 months

[ANN] WIP - JS-Wrap

by Florian Paul Schmidt

In the tradition of releasing (or at least announcing)buggy, mostly untested software, here's: js_wrap - a simple wrapper for non Jack-Session aware apps whose state can be fully specified by their commandline Use js_wrap -- gnome-terminal if you want to get a gnome terminal in your jack_session.. Or js_wrap -- a2jmidid if you want to have the alsa to midi bridge in your jack_session.. Get the software via copy and paste of the following commands: git clone https://github.com/fps/js_wrap cd js_wrap mkdir bld cd bld cmake .. cd .. make -C bld sudo make install and get to fixing bugs ;D In my experiments it worked just fine with gnome-terminal though there are some errors and the code is pretty much copy-pasta'd from lash_wrap... So expect breakage and panic and hilarity which will ensue.. Always use condoms, Flo

12 years, 8 months

[LAA] [ANN] guitarix release guitarix2-0.18.0

by hermann

guitarix/gx_head, a guitar mono tube amplifier simulation for jack a new release (0.18.0) is available. please refer to our project page for more information: http://guitarix.sourceforge.net/ new features in short: * add tube model 12AT7 * fix runtime issues when build with g++ > 4.5 * add presence level controller * add bass booster level controller * switch to function pointer based engine * fix issues with GtkBuilder > 2.14 and Glade files * fix correct use of included zita-resampler source * add factory settings by autoandimat download site: http://sourceforge.net/projects/guitarix/ have fun Many thanks to Fons Adriaensen for lead me to find and fix a bogus bug related to correct object bindings in C++ kudos to Fons _________________________________________________________________________ As well, a new release (1.4) of gxtuner is available, gxtuner comes now with jack_session support. Read the README for details. http://sourceforge.net/projects/guitarix/files/gxtuner/ regards guitarix development team

12 years, 8 months

BOSS BR-80 USB Audio

by Kazutomo Yoshii

Hi All, [ Sorry about reposting. Someone suggested LAD, so I reposted this to both LAD and LAU. ] I bought BOSS BR-80 recently, which can be used as USB audio interface. Unfortunately, Fedora15(2.6.38.8) didn't recognize it. Maybe someone already made BR-80 work but my google search didn't show any hint, so I decided to hack. I added an entry to quirks-table.h for BR-80 (see below) and recompiled the snd-usb-audio module and re-installed the module. I also added a dmex and softvol config to .asoundrc(see also below). It now works as a playback device, which satisfies my current requirements. The capture interface and MIDI seems not working. The lsusb output contains a couple of 'UNRECOGNIZED' lines. lsusb output,/proc/asound/, etc are also below. Although I might not use these interfaces, I'm just curious to hack. Can anyone suggest where I should look at? Thanks, Kaz ======================================== --- sound/usb/quirks-table.h.orig 2011-08-06 21:17:32.686663306 -0500 +++ sound/usb/quirks-table.h 2011-07-26 19:05:21.790767824 -0500 @@ -1611,6 +1611,34 @@ } } }, +{ + USB_DEVICE(0x0582, 0x0130), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + /* .vendor_name = "BOSS", */ + /* .product_name = "MICRO BR-80", */ + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 1, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 2, + .type = QUIRK_MIDI_STANDARD_INTERFACE + }, + { + .ifnum = -1 + } + } + } +}, + + ======================================== $HOME/.asoundrc pcm.dmixer { type dmix ipc_key 333444 # uniq val slave { pcm { type hw; card BR80AUDIO; } period_time 0 period_size 1024 buffer_size 8192 rate 44100 } bindings { 0 0 1 1 } } #http://alsa.opensrc.org/How_to_use_softvol_to_control_the_master_volume pcm.softvol { type softvol slave { pcm "dmixer" } control { name "Master" card 0 # is this right? } } pcm.!default { type plug slave.pcm "softvol" } ======================================== $ find /proc/asound/BR80AUDIO/ -type f /proc/asound/BR80AUDIO/id /proc/asound/BR80AUDIO/usbbus /proc/asound/BR80AUDIO/usbid /proc/asound/BR80AUDIO/stream0 /proc/asound/BR80AUDIO/midi0 /proc/asound/BR80AUDIO/pcm0p/sub0/status /proc/asound/BR80AUDIO/pcm0p/sub0/sw_params /proc/asound/BR80AUDIO/pcm0p/sub0/hw_params /proc/asound/BR80AUDIO/pcm0p/sub0/info /proc/asound/BR80AUDIO/pcm0p/xrun_debug /proc/asound/BR80AUDIO/pcm0p/info ======================================== This message appears in kernel log [81902.426215] ALSA sound/usb/midi.c:1680: MIDIStreaming interface descriptor not found ======================================== lsusb output Bus 002 Device 008: ID 0582:0130 Roland Corp. Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 255 Vendor Specific Class bDeviceSubClass 0 bDeviceProtocol 255 bMaxPacketSize0 64 idVendor 0x0582 Roland Corp. idProduct 0x0130 bcdDevice 0.00 iManufacturer 1 iProduct 2 iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 176 bNumInterfaces 4 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xc0 Self Powered MaxPower 2mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 255 Vendor Specific Subclass bInterfaceProtocol 0 iInterface 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 2 bInterfaceProtocol 2 iInterface 0 ** UNRECOGNIZED: 06 24 f1 01 00 00 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 1 bNumEndpoints 1 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 2 bInterfaceProtocol 2 iInterface 0 ** UNRECOGNIZED: 07 24 01 01 00 01 00 ** UNRECOGNIZED: 0b 24 02 01 02 04 18 01 44 ac 00 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x0d EP 13 OUT bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x0038 1x 56 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 2 bInterfaceProtocol 1 iInterface 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 1 bNumEndpoints 1 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 2 bInterfaceProtocol 1 iInterface 0 ** UNRECOGNIZED: 07 24 01 07 00 01 00 ** UNRECOGNIZED: 0b 24 02 01 02 04 18 01 44 ac 00 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x8e EP 14 IN bmAttributes 37 Transfer Type Isochronous Synch Type Asynchronous Usage Type Implicit feedback Data wMaxPacketSize 0x0038 1x 56 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 3 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 3 bInterfaceProtocol 0 iInterface 0 ** UNRECOGNIZED: 06 24 f1 02 01 01 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 1 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 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 3 bAlternateSetting 1 bNumEndpoints 2 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 3 bInterfaceProtocol 0 iInterface 0 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 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x85 EP 5 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 1

12 years, 8 months

LAD] RT-Safe UI/Engine Decoupling using Functional

by Jeff McClintock

I'm just in the process of porting my plugin to a platform where the GUI runs on Windows, but the Audio processing runs on an real-time optimized Linux box. With the proliferation of iPads etc, I see this approach of mixing a cool portable GUI with a Linux 'powerhouse' audio processor become more common in studios. Surly passing functors (which are pointers?) to audio code running in a separate address space can not work? Jeff McClintock > From: Florian Paul Schmidt <mista.tapas(a)gmx.net> > Subject: [LAD] RT-Safe UI/Engine Decoupling using Functional > Programming and Reference Counted SmartPointers > To: linux-audio-dev(a)lists.linuxaudio.org > Message-ID: <4E3CA5A4.7060208(a)gmx.net> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > Hi, > > during the process of writing a new small jack sampler which fits my > workflow I came up with this little scheme to solve the UI/engine > decoupling problem. For the purpose of spreading the idea or > alternatively getting answers about how it's broken and sucks I decided > to write a little article describing it.. > > http://178.63.2.231/~tapas/wordpress/?page_id=45 > > The (largely unfinished and unusable) sampler project is here: > > https://github.com/fps/jass > > Let me have it.. > > Regards, > Flo

12 years, 8 months

Re: [LAD] [LAU] Announcing Kn0ck0ut-LV2, spectral subtraction plugin

by Jeremy Salwen

Thank you, I apologize. That is now fixed. Jeremy On Sun, Aug 7, 2011 at 12:09 PM, Alvaro Paz da Silva <alanpasi(a)gmail.com>wrote: > Hi > File not found... :( > https://nodeload.github.com/jeremysalwen/kn0ck0ut-LV2/tarball/1.0 > > Alanpasi > > On Sun, Aug 7, 2011 at 6:58 AM, Jeremy Salwen <jeremysalwen(a)gmail.com>wrote: > >> Hello all, >> >> I am pleased to announce that the first release of Kn0ck0ut-LV2<https://github.com/jeremysalwen/kn0ck0ut-lv2>is ready. Kn0ck0ut-LV2 is a port of the very popular VST "Spectral >> Subtractor/Vocal Remover" plugin Kn0ck0ut<http://www.freewebs.com/st3pan0va/>, >> with added features and improvements. >> >> Kn0ck0ut-LV2 is primarily useful for either isolating or removing the >> "center channel" of stereo recordings. If you have center panned vocals, >> you can use this to get the classic effects of "karaoke" or "vocal >> extraction". However, if you turn the controls to the extremes and/or feed >> it two unrelated signals, you can also get a variety of unique sounds. >> >> On top of Kn0ck0ut's functionality, I offer these improvements in >> Kn0ck0ut-LV2: >> >> * Improved performance through use of FFTW and more efficent buffering code >> * Completely variable FFT size and overlap amount controls. >> >> >> >> >> * Experimental "Phase Compensation" option, which will perhaps preserve >> additional fidelity in certain cases. >> * Restored Low-cut filter which was removed in later releases. >> >> If this all sounds great, a direct download link for the sources is here<https://github.com/jeremysalwen/kn0ck0ut-LV2/tarball/1.0>. >> In order to compile, you need lv2core, fftw3, and lv2-c++-tools >> >> A special thanks to St3pan0va, the original author of kn0ck0ut. >> >> Comments/questions are welcome. >> >> Jeremy Salwen >> >> _______________________________________________ >> Linux-audio-user mailing list >> Linux-audio-user(a)lists.linuxaudio.org >> http://lists.linuxaudio.org/listinfo/linux-audio-user >> >> >

12 years, 8 months

[LAU] Announcing Kn0ck0ut-LV2, spectral subtraction plugin

by Jeremy Salwen

Hello all, I am pleased to announce that the first release of Kn0ck0ut-LV2<https://github.com/jeremysalwen/kn0ck0ut-lv2>is ready. Kn0ck0ut-LV2 is a port of the very popular VST "Spectral Subtractor/Vocal Remover" plugin Kn0ck0ut<http://www.freewebs.com/st3pan0va/>, with added features and improvements. Kn0ck0ut-LV2 is primarily useful for either isolating or removing the "center channel" of stereo recordings. If you have center panned vocals, you can use this to get the classic effects of "karaoke" or "vocal extraction". However, if you turn the controls to the extremes and/or feed it two unrelated signals, you can also get a variety of unique sounds. On top of Kn0ck0ut's functionality, I offer these improvements in Kn0ck0ut-LV2: * Improved performance through use of FFTW and more efficent buffering code * Completely variable FFT size and overlap amount controls. * Experimental "Phase Compensation" option, which will perhaps preserve additional fidelity in certain cases. * Restored Low-cut filter which was removed in later releases. If this all sounds great, a direct download link for the sources is here<https://github.com/jeremysalwen/kn0ck0ut-LV2/tarball/1.0>. In order to compile, you need lv2core, fftw3, and lv2-c++-tools A special thanks to St3pan0va, the original author of kn0ck0ut. Comments/questions are welcome. Jeremy Salwen

12 years, 8 months

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Linux-audio-dev August 2011