Linux-audio-user April 2004

linux-audio-user@lists.linuxaudio.org

141 participants
177 discussions

Re: [linux-audio-user] MP3 streaming via JACK.

by mark62756＠comcast.net

you could use icecast2 and libshout as a source for icecast :) i havn't got around trying it but here is a link http://xiph.org/~karl/ -- Marko Dimiskovski > Hi all > Does anybody have any idea about what I could use for streaming audio via > MP3 from JACK apps? I know of ices but it doesn't appear to support MP3. > > Suggestions welcome > > Thanks in advance. > > Luke > -- > Luke Yelavich > http://www.audioslack.com > luke(a)audioslack.com > >

21 years

[linux-audio-user] Fwd: [Jamin] Re: soft clip: Achieving Gain, inconsequential overloads

by R Parker

Hi, Maybe some folks on this list have insites into the following conversation between Steve and myself. I need all the help I can get. The last three paragraphs are a topic for which I am woefully ignorant. > --- Steve Harris <S.W.Harris(a)ecs.soton.ac.uk> wrote: > > On Sun, Apr 11, 2004 at 10:04:43 -0700, R Parker > > wrote: > > > Not sure but I probably mentioned something > about > > this > > > several months ago. Steve, do you have a soft > clip > > > LADSPA plug? If yes, I think it should be a > > candidate > > > for adding to the output stage of JAMin. > > > > There are some soft clip LADSPA plugins, but I > dont > > think any of them are > > better than JAMin's "boost". > The thing is my client has requested a %20 increase > in > volume across the entire album. The first question > is > does he know what he's asking for. Well, he probably > has a fair enough idea. He has compared the old > master > with stylistically similar million dollar masters > and > concluded the percentage to increase. > > If anyone here has tricks for achieving gain, I need > to hear about them. My bag ain't got alot in it. I > basically cut dominant frequency either with > compression or equalization and with the leveled off > floor, achieve gain possible; input, compressor > makeup, limiter input, boost and output. Of course > then it's just a matter of tweaking ratios, > thresholds, etc. > > The trade off in general is less dynamics and more > distortion with several deciables of increased > volume. > I love the work but this job is like a No Rules Cage > Match. I might eventually win the title but it's a > good thing I brought lunch and a first aid kit. > > > I've heard that you can ignore peaks that only go > > over 0dB for less than a > > millisecond, but I've not experimented with it. > > If that's the case, then I might have this job in > the > bag. I'm watching overloads at the input channels of > my mixer flicker on and off. I've been trying very > hard to have absolutely zero overload indications. > > Any idea how to test this potential point of > flexibility or how to push this limit? What am I > watching for and how do I watch for it? This seems > like a very interesting area of study. I've gotta do > a > dirt knap and then maybe google about or something. > > ron > > > - Steve > > > __________________________________ > Do you Yahoo!? > Yahoo! Tax Center - File online by April 15th > http://taxes.yahoo.com/filing.html > > > ------------------------------------------------------- > This SF.Net email is sponsored by: IBM Linux > Tutorials > Free Linux tutorial presented by Daniel Robbins, > President and CEO of > GenToo technologies. Learn everything from > fundamentals to system > administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click > _______________________________________________ > Jamin-devel mailing list > Jamin-devel(a)lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/jamin-devel __________________________________ Do you Yahoo!? Yahoo! Tax Center - File online by April 15th http://taxes.yahoo.com/filing.html

21 years

[linux-audio-user] Delta 1010LT and recording question

by H. T. Hind

Hello, I'm using a Delta 1010 LT card to record from radio tuners. How does one record from all 10 inputs ? I see 8 Analog inputs and two digital. How can I use the two digital ports to record ? Do I need special adapters ? When I plugged the line-out from a audio-source to the S/0 port, I didn't see anything in envy24control . I'm using JACK and ecasound to record the individual channels to individual files. As the Delta 1010 seems capable of stereo recording , is it possible to record 20 line-ins in a mono mode ? If so, how do I split it ? I bought a couple of adapters from Radio Shack such that I can connect 2 cables to the analog-in of the delta-1010 ? Is it possible to then route the invididual channels to individual files ? hth --

21 years

[linux-audio-user] rezound as jack client

by R Parker

Hi, I've always had trouble getting the Rezound CCRMA package to work as a jack client. When starting, it asks what alsa_pcm:playback is wanted, establishes the connection with jack but never starts the gui. root 8244 1.8 2.1 19376 19376 pts/8 SL 12:00 0:03 rezound --audio-method=jack It starts fine if the audio method isn't jack. It also will start with jack as the audio method if I compile from source. Is there some trick I need to employ? ron __________________________________ Do you Yahoo!? Win a $20,000 Career Makeover at Yahoo! HotJobs http://hotjobs.sweepstakes.yahoo.com/careermakeover

21 years, 1 month

[linux-audio-user] cd burning; multiple songs from one .wav file

by R Parker

Hi, On the topic of burning a CD, is it possible to define the start and stop points for many songs within one large file? I always use cdrdao and produce distinct files for each song. However, when mastering muliple songs with Ardour and JAMin a significant amount of time can be saved if the final audio product could be one file. ron __________________________________ Do you Yahoo!? Win a $20,000 Career Makeover at Yahoo! HotJobs http://hotjobs.sweepstakes.yahoo.com/careermakeover

21 years, 1 month

[linux-audio-user] vsti-0.0.3 problem

by James Stone

Hi.. I have been experimenting with loading VSTi s with vstserver and the pd plugin.. it all works very nicely. However, I am not having so much luck using the VSTi-0.0.3 program.. I get the error could not attach as client (duplicate client name?) could not load vst This is with a build on a Debian sid box. Jack is 0.94, vstserver is 0.3.1.. I noticed the library file is supposed to be installed in /usr/lib/jack which does not exist on my system, but I put it in /usr/lib and called a ldconfig... Not really sure what the problem is here. Any pointers would be gratefully received! James.

21 years, 1 month

[linux-audio-user] Finding tempo

by John Anderson

Howdies I need something that will help me take a tune I can sing or play and find the tempo in bpm. I'm thinking of something that picks up the time between two (or several) taps, or something that feeds clicks into jack in an easily variable way. Or something like that. thanks John

21 years, 1 month

[linux-audio-user] cd burning w/out gaps

by rossen

Hi all... There was a discussion some time ago about burning a CD without the automatic 2 sec gap between the tracks. I didn't really follow it until I needed to do the same thing. Sorry if I'm repeating an old posting but I found that cdrecord has an option, defpregap, that can be used in this case. Just give $cdrecord defpregap=0 -other-options *.wav and it works. The tracks are searchable,and still the mix goes uninteruppted. Unfortunately, the man page says "This option may go away in the future":( -- rossen

21 years, 1 month

Re: [linux-audio-user] Quattro USB (EMI 6|2m)

by Jorma R

> Hallo, > Jorma R hat gesagt: // Jorma R wrote: > > > I have the EMI 6|2m. The card works ok with Jackd - at 16-bit and with a > > large period size. The card records cleanly at 24-bit too but gives > > strange noise when connecting Jack ports. > > > > So it works but not perfectly. > > > > If any suggestions on how to ipmrove the performance with jackd would be > > more than welcome. > > Are you using "even" samplerates, that is, divisibly by 1000? 48000 > is much better than 44100 > > Ciao > -- > Frank Barknecht Thanks for the advice. Actually the card does perform a bit better at 48000. The thing is that at 48000 I get only 6 capture ports at 24-bit - no playback. Suprisinly I got rid of the noise by setting -n 512 -p 4. What I haven't figured out is how to make the EMI capture at 6*24/44100 and playback at 2*16/44100 which would be the maximum performance by this box. In other words how to tell Jack to use certain altset of the playback interface. With the -S switch I get 16-bit input and output but 24-bit capture at least sounds like a nice idea... Any suggestions on how to make that happen? I've tried using pcm slaves from the .asoundrc as Steve Harris suggested earlier but ended up with Segmentation Faults and missing library - notifications only... ALSA lib pcm.c:1939:(snd_pcm_open_conf) Cannot open shared library /usr/lib/alsa-lib/libasound_module_pcm_format.so Thanks, -Jorma __ Sano ei kuukausimaksuille. Hanki Suomen edullisin kuukausimaksuton GSM-liittymä osoitteesta http://www.saunalahti.fi. Puhelut vain 0,109snt/min.

21 years, 1 month

[linux-audio-user] Can't load realtime-lsm module

by Alex Marandon

Hi, Trying to get Jack running with a 2.6.5 kernel. # modprobe -v realtime gid=102 allcaps=1 insmod /lib/modules/2.6.5/extra/realtime.ko gid=102 allcaps=1 FATAL: Error inserting realtime (/lib/modules/2.6.5/extra/realtime.ko): Invalid argument Kernel was built with: CONFIG_PREEMPT=y CONFIG_SECURITY_CAPABILITIES=m CONFIG_SECURITY=y CONFIG_SECURITY_CAPABILITIES=m CONFIG_SECURITY_SELINUX=y When building LSM, I wasn't able de run make as a user : $ make CONFIG_SECURITY_CAPABILITIES=m make modules -C /usr/src/linux SUBDIRS=/home2/al/realtime-lsm-0.1.0 make[1]: Entering directory `/usr/src/linux-2.6.5' *** Warning: Overriding SUBDIRS on the command line can cause *** inconsistencies make[2]: `arch/i386/kernel/asm-offsets.s' is up to date. CC [M] /home2/al/realtime-lsm-0.1.0/realcap.o CC [M] /home2/al/realtime-lsm-0.1.0/commoncap.o LD [M] /home2/al/realtime-lsm-0.1.0/realtime.o /bin/sh: line 1: .tmp_versions/realtime.mod: Permission denied Building modules, stage 2. MODPOST /bin/sh: line 1: ./.__modpost.cmd: Permission denied make[2]: *** [__modpost] Error 1 make[1]: *** [modules] Error 2 make[1]: Leaving directory `/usr/src/linux-2.6.5' make: *** [all] Error 2 But it works when make is run as root. The README file says that only make install has to be run as superuser.

21 years, 1 month

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Linux-audio-user April 2004