Linux-audio-dev

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3 participants
7536 discussions

[LAD] [ot] capitalising words in a shell-script

by Julien Claassen

Hello there! Is there a nice and simple awk/sed trick to just capitalise a word? I didn't come up with one so far. I could do it by hand, it's a known set of words, but it would be nicer with a real word-independent mechanism. Kindest regards Julien -------- Music was my first love and it will be my last (John Miles) ======== FIND MY WEB-PROJECT AT: ======== http://ltsb.sourceforge.net the Linux TextBased Studio guide ======= AND MY PERSONAL PAGES AT: ======= http://www.juliencoder.de

17 years, 4 months

[LAD] [ANN] bss - 0.5

by Julien Claassen

Hello everyone! You might have been wondering what I'm up to. So here we go. BSS is the "BBC7 Shell Script Suite" and package of a few shell scripts to search the bbc7 website via a simple commandline interface. You can also listen to the "listen again" service, by directly providing day and time. There's also a small audio-file converter. BBC7 is the BBC's station for comedy and drama. From the criminal, to the horrifying to the hilarious, to quiz-shows to readings of everyday and high literature. Please don't investigate the hidden bbc7-listen.sh option too much. They make their living from that and they offer a very nice service, which I hated to see going down. But of course it can occasionally be helpful to dump files to your disk. The link: http://juliencoder.de/bss-0.5.tar.bz2 Requirements: bash and the usual utilities for all of them, for the listen and convert scripts it's mplayer and ecasound and the search script requires wget. Hope you'll enjoy it! Kindest regards Julien -------- Music was my first love and it will be my last (John Miles) ======== FIND MY WEB-PROJECT AT: ======== http://ltsb.sourceforge.net the Linux TextBased Studio guide ======= AND MY PERSONAL PAGES AT: ======= http://www.juliencoder.de

17 years, 4 months

[LAD] error with ffado svn rev 1348

by porl sheean

hi there. i have just tried to run the latest ffado build (rev 1348) and keep getting an 'input in flex scanner failed' error when trying to run ffado-dbus-server. the exact error is: 02522143147: Debug (ffado-dbus-server.cpp)[ 251] main: verbose level = 6 02522143184: Debug (ffado-dbus-server.cpp)[ 252] main: Using ffado library version: libffado 2.0.900-1348 input in flex scanner failed no message buffer overruns i have completely removed any old copies of ffado and checked out the build from scratch in case it was something corrupting with an older version's files being left behind or something, but still the same error. thanks for any help porl

17 years, 4 months

Re: [LAD] jack_capture

by Kjetil S. Matheussen

"Loki Davison": > > you get a lot more useful hits on google with WAVE_FORMAT_EXTENSIBLE > than wavex it seems. Thanks. That was a lot more information. I wonder though, if aiff would be a better choice than wavex? Does the endian mismatch matter anymore with todays machines?

17 years, 4 months

[LAD] ipc reliability

by Patrick Stinson

I have embedded python as a midi scripting language in my audio thread, and need to migrate the calls to libpython to a new process per each audio thread to avoid acquiring python's the global interpreter lock (GIL). Does anyone know what the theoretical reliability of basic memory-based IPC mechanisms are like with respect to realtime audio threads? Will I be causing even bigger performance problems with just the IPC overhead to make some function calls, or is it negligible? Thanks

17 years, 4 months

[LAD] Freeverb problems (again)

by Reuben Martin

Hi all, I'm having trouble getting a working compile of the freeverb3 plugin from the CMT plugin set. I remember that a while back it had issues with de-normals. However, I thought those issues got worked out. Furthermore, I was under the impression that the whole de-normals problem was specific to Intel processors. (Is that incorrect?) The output sounds the same as what people described when having denormal issues. i.e. sounds like a crappy plate reverb, with no control over tail length. It used to work, so I'm wondering if this might be an issue to do with using newer versions of gcc? -Reuben

17 years, 4 months

Re: [LAD] jack_capture

by Kjetil S. Matheussen

Fons Adriaensen: > > On Wed, Sep 10, 2008 at 05:02:12PM +0200, Kjetil S. Matheussen wrote: > >> jack_capture >> ============ >> jack_capture is a program for recording soundfiles with jack. Its default >> operation is to capture whatever sound is going out to your speakers into >> a file. (But it can do a number of other operations as well...) > > Very useful, just one remark: for more than 2 channels > the default should be WAVEX instead of WAV (easy enough > if you use libsndfile). WAVs with more than 2 channels > are technically illegal and refused by some software. > Thanks for the input. But do you think ch>2 wavex files are supported by more software than ch>2 wav files? Because I haven't even heard of wavex files before... (wavex files are supported in jack_capture though, "-f wavex" should do the job, thanks to libsndfile)

17 years, 5 months

[LAD] Vamp compilation issues (Kubuntu 64-bit with RT kernel)

by Darren Landrum

I posted this exact message to the Vamp forum, noticed the dates of the last posts, there, and decided to try here instead. I'm having a most unusual problem compiling the Vamp-SDK on my machine. This has actually been an on-going problem for some time now. Looking over the Vamp forums, I see one other person seems to have successfully compiled and installed Vamp on his 64-bit Ubuntu install, so I'm wondering what keeps going wrong here. The first thing I did was to edit the Makefile to install to /usr instead of /usr/local. That was simple enough. Then when I run make, I get the following output (notice the error at the end): ----- g++ -O2 -Wall -I. -fPIC -c -o vamp-sdk/PluginAdapter.o vamp-sdk/PluginAdapter.cpp g++ -O2 -Wall -I. -fPIC -c -o vamp-sdk/RealTime.o vamp-sdk/RealTime.cpp ar r vamp-sdk/libvamp-sdk.a vamp-sdk/PluginAdapter.o vamp-sdk/RealTime.o g++ -O2 -Wall -I. -fPIC -c -o vamp-sdk/PluginHostAdapter.o vamp-sdk/PluginHostAdapter.cpp g++ -O2 -Wall -I. -fPIC -c -o vamp-sdk/hostext/PluginBufferingAdapter.o vamp-sdk/hostext/PluginBufferingAdapter.cpp g++ -O2 -Wall -I. -fPIC -c -o vamp-sdk/hostext/PluginChannelAdapter.o vamp-sdk/hostext/PluginChannelAdapter.cpp g++ -O2 -Wall -I. -fPIC -c -o vamp-sdk/hostext/PluginInputDomainAdapter.o vamp-sdk/hostext/PluginInputDomainAdapter.cpp g++ -O2 -Wall -I. -fPIC -c -o vamp-sdk/hostext/PluginLoader.o vamp-sdk/hostext/PluginLoader.cpp g++ -O2 -Wall -I. -fPIC -c -o vamp-sdk/hostext/PluginWrapper.o vamp-sdk/hostext/PluginWrapper.cpp ar r vamp-sdk/libvamp-hostsdk.a vamp-sdk/PluginHostAdapter.o vamp-sdk/hostext/PluginBufferingAdapter.o vamp-sdk/hostext/PluginChannelAdapter.o vamp-sdk/hostext/PluginInputDomainAdapter.o vamp-sdk/hostext/PluginLoader.o vamp-sdk/hostext/PluginWrapper.o vamp-sdk/RealTime.o ranlib vamp-sdk/libvamp-sdk.a ranlib vamp-sdk/libvamp-hostsdk.a g++ -static-libgcc -shared -Wl,-Bsymbolic -Wl,-soname=libvamp-sdk.so.1 -o vamp-sdk/libvamp-sdk.so vamp-sdk/PluginAdapter.o vamp-sdk/RealTime.o g++ -static-libgcc -shared -Wl,-Bsymbolic -Wl,-soname=libvamp-hostsdk.so.2 -o vamp-sdk/libvamp-hostsdk.so vamp-sdk/PluginHostAdapter.o vamp-sdk/hostext/PluginBufferingAdapter.o vamp-sdk/hostext/PluginChannelAdapter.o vamp-sdk/hostext/PluginInputDomainAdapter.o vamp-sdk/hostext/PluginLoader.o vamp-sdk/hostext/PluginWrapper.o vamp-sdk/RealTime.o g++ -O2 -Wall -I. -fPIC -c -o examples/SpectralCentroid.o examples/SpectralCentroid.cpp g++ -O2 -Wall -I. -fPIC -c -o examples/PercussionOnsetDetector.o examples/PercussionOnsetDetector.cpp g++ -O2 -Wall -I. -fPIC -c -o examples/AmplitudeFollower.o examples/AmplitudeFollower.cpp g++ -O2 -Wall -I. -fPIC -c -o examples/ZeroCrossing.o examples/ZeroCrossing.cpp g++ -O2 -Wall -I. -fPIC -c -o examples/plugins.o examples/plugins.cpp g++ -static-libgcc -shared -Wl,-Bsymbolic -Wl,--version-script=vamp-plugin.map -o examples/vamp-example-plugins.so examples/SpectralCentroid.o examples/PercussionOnsetDetector.o examples/AmplitudeFollower.o examples/ZeroCrossing.o examples/plugins.o vamp-sdk/libvamp-sdk.a /usr/lib/gcc/x86_64-linux-gnu/4.2.3/libstdc++.a /usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/4.2.3/libstdc++.a(functexcept.o): relocation R_X86_64_32 against `std::bad_typeid::~bad_typeid()' can not be used when making a shared object; recompile with -fPIC /usr/lib/gcc/x86_64-linux-gnu/4.2.3/libstdc++.a: could not read symbols: Bad value collect2: ld returned 1 exit status make: *** [examples/vamp-example-plugins.so] Error 1 ----- Is it trying to tell me that libstdc++ is compiled incorrectly on my machine? It's the one that comes with every Ubuntu 64-bit system. Any help would be greatly appreciated. Thank you! My system: AMD64 X2 with Kubuntu 64-bit, 2.4.24-19-rt kernel, 2GB DDR-800 RAM, SATA2 hard disks. Regards, Darren Landrum

17 years, 5 months

[LAD] jack clicks with no xruns

by Dave Griffiths

Hi all, Does anyone else get clicks which occur continuously after getting a single xrun in jack? (i.e no further xruns are reported, but the audio is crackling). I'm setting up an art installation which has to run for hours on end without intervention, and this seems to be happening after some time (running jack in realtime mode). I'm using a stock kernel in OpenSuse - would it help to use a lowlatency one? The audio doesn't need lowlat - I'm using a buffer size of 1024. I don't care about the odd xrun - as long as the audio goes back to normal afterwards, any help gratefully received. This is running in my own software so there is more than a chance it's something I'm doing wrong. cheers, dave

17 years, 5 months

[LAD] Fst: fst_init() causes seg fault

by Cane

Hi, sorry for the double post, but maybe a user knows the answer to this... What is the right way to call fst_init() ? I have installed fst-1.9 (tried 1.7 - 1.9), and it runs standalone and loads vst's OK. However, from within a simple 'hello world' app, when I call fst_init(), it causes a seg fault. The seg fault happens early within fst, in the 'wine_premain' code, at getModuleHandleA(). I have tried that trick of reserving and initializing 1,000,000 stack bytes (taken from from jfst_reserve_memory()). No luck. I really would like to get this working. Can you help? Thanks. Tim. terminator356 <at> users <dot> sourceforge <dot> net. (Using a different computer)

17 years, 5 months

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Linux-audio-dev