Linux-audio-user May 2006

linux-audio-user@lists.linuxaudio.org

184 participants
187 discussions

by Josh Lawrence

Okay guys, A little off-topic here, but I need a mixer. I've got Ardour working great now, and I'm ready to do some recording, possibly some live recording of my trio. Here's my problem: I need a mixer that will let me listen to the current mix, and only send what I want to record to my inputs. My Mackie 1202-VLZ did this via "Alt Outs." I could press a button on a channel, and only that channel went to the alt outputs, meaning I could listen to the whole mix on my mixer and only record what I wanted to. So the obvious answer here is "buy another Mackie," but they are a little pricey. If I can get out cheap, or maybe buy a higher quality mixer used, I would do that. I've looked into Behringer mixers, but they don't seem to be able to do the alt output trick. Also, there are a lot of digital mixers on eBay (EZ-Bus, Tascam, Roland, Yamaha 01-V) that look good and only cost around $300 or less. Any opinions? What are you guys using in your home studios? -- Josh Lawrence http://www.hardbop200.com

18 years, 1 month

[linux-audio-user] record in/out sound for an app

by Mikhail Ramendik

15:52 Срд 17-Май-06 Hello, I have a sound card with alsa, and an IP telephony app that inputs and outputs sound (via OSS or ALSA, it can be set up both ways). I need to record a conversation, i.e. to save both captured and putput sound into a file. (If these will be two different files, it's OK). Is there a way I could do this? -- Yours, Mikhail Ramendik

18 years, 1 month

[linux-audio-user] Huygens' Titan descent with music

by Wolfgang Woehl

There is a movie of Huygens' Titan descent on http://photojournal.jpl.nasa.gov/catalog/PIA08117 which has interesting music. Sounds triggered by events and tuned by parameters of the probe make it appear like a tourist happily doodling downward. It's technical but so cute too. -- Wolfgang

18 years, 1 month

[linux-audio-user] Re: OT: need a mixer

by Stuart Allie

> No problem, final mixes are always done using just Ardour, and I > have no intention to buy a 40 input external mixer... > > But the one I do have is very useful, for the reasons I gave > in the previous post - flexible routing and monitoring while recording. Also for simple but > practical things like talkback. > > And in many cases I do mix 'live' and just record the stereo result. For some types of music > that's the natural way to do things - you don't want to fiddle with it afterwards. Fons, To respond to your original question, I believe that the behringer 1204 (not 1202) has the same "alt out" buttons as the mackie that you had. Another alternative is the yamaha mg12/4 - basically the same routing options as the mackie and the behringer. Both these come in a "fx" version that I've found useful for, say, adding a bit of reverb when monitoring but sending a dry signal to the pc for recording. Cheers, Stuart

18 years, 1 month

[linux-audio-user] Re: Samson C01U USB Mic Low Noise HowTo

by philicorda

> From: Carlo Capocasa <capocasa(a)gmx.net> > Subject: [linux-audio-user] Samson C01U USB Mic Low Noise HowTo > To: linux-audio-user(a)music.columbia.edu > Message-ID: <e4dgks$tbu$1(a)sea.gmane.org> > Content-Type: text/plain; charset=ISO-8859-15 > > What's up, all! > > Just treated myself to my first condensor microphone, a USB-powered > specimen of fiendishly convenient technology that includes a pre-amp and > d/a converter. For entry-level it probably doesn't come any better than > this. > > I have heard reports that this device was noisy, however I was able to > fix that: I might have been one of the people saying it was noisy. I don't know if you saw the post I sent here about it, but I was completely wrong about it having a fixed gain and using a digital gain control after the a/d. There was a web page about it with some messages from samson techs, but I cannot find the url now. It uses a little stereo a/d chip with built in preamps and feeds the output of one side back into the other to get more gain. So.. the output is actually stereo, with the right side being quieter than the left as it's only gone through one stage of amplification. One amusing thing to try is this.... Use alsamixer and set the input gain so the right side is 100 and the left 60. Route each side to it's own track in ardour. Sing into it a bit. Both inputs should show the same level. Record a bit. The right one has a tiny bit less background hiss and is a tiny bit cleaner as it's only been through one gain stage. It's also out of phase for some reason. The difference is much too small to be worth the bother, but I thought it was kinda interesting. Perhaps there are some other hacks to be found by combining both gains/sides..... > > 1. Set the device pre-amp to 75% volume in ALSA mixer. > 2. Sing with your mouth right before the grate above the Samson logo. > The device is calibrated to be relatively distortion-free when singing > moderately loud, and this way you will have enough signal to be very > happy with the noise level. > 3. Pop-effects are disturbing singing this way; the manual recommends > the famous engineer's trick of stretching a bit of nylon stocking over a > hoop and singing through that. I now have the privilege of asking a girl > I know for used stocking to provide some extra suggestive edge to my > kinky songs while doing something technically beneficial. Life is good. Rock n roll! By the way, have you managed to get it working at less than 512 frames/period latency? It refuses to let jack connect on my computer when I try it at 256. > > Carlo

18 years, 1 month

[linux-audio-user] Recording Level using Audacity and a Multiface card

by D. Sen

Just wondering if I am doing things right. Trying to record a 94 dB SPL sinusoid using a B&K microphone connected into the analogue input of an RME multiface card, I see levels at about -37 dB. This is when the hdspmixer is set such the recording level is the most sensitive. Is this about right? This means that I can potentially record very high levels but I am worried about missing out the lower levels. DS

18 years, 1 month

[linux-audio-user] Midi and computer freezing

by chris beagles

Hi, After months of searching, have finally found my old midi to serial port cables. They seem to be working fine, i can play music back using aplaymidi --port 64:0 file.mid. But when i go into qjackctl to connect the input to jack, it abruplty causes the pc to hault. No keyboard response, no mouse. Nothing. I have to hard reset the computer. Not sure how to go about checking what goes wrong, probably should view some kernel logs or something, but have no idea where to start. The problem happens everytime i try and connect the input to something (Zyn, rosegarden, etc..) I am using ubuntu dapper drake, kernel 2.6.15-22 for i686. Using some rubishy Cmedia soundcard serial port. Connected to piano with random midi cables. Any help appreciated!

18 years, 1 month

[linux-audio-user] Another song - asking for advices

by yves_p＠nnx.com

Hello. I've just achieved this track : http://ypotin.nerim.net/clouds.ogg (8,1 Mo). It's made with MuSE, Linuxsampler, Zyndaddsubfx, CAPS, Tap and other LADSPA plugins, Ardour and Jamin. And a guitar :). All comments are really welcome :). Cheers, Y.

18 years, 1 month

Re: [linux-audio-dev] Re: [linux-audio-user] Re: LAC-Konzertreport auf SWR2 15.5. 23h (German only)

by Frank Barknecht

Hallo, Michael Iber hat gesagt: // Michael Iber wrote: > unfortunately, for legal reasons it is not possible to make the > audio-data public. I discussed this with the broadcast station before, > and their lawyers said definitely: no. The background is GEMA. Working for the website of a public radio in Germany myself (www.dradio.de) I know these issues a bit. We have a very big audio on demand section on our website (and Ogg streaming btw.) but we have to or at least try hard to filter out everything that is music or radio play. Only words allowed. Of course the authors get paid additional money if their work is also offered as a download, which is another issue to consider. Ciao -- Frank Barknecht _ ______footils.org_ __goto10.org__

18 years, 1 month

[linux-audio-user] [ANN] FreeCast 20060515

by Alban Peignier

FreeCast 20060515 - FreeCast traverses NAT After a busy winter, the FreeCast team is proud to publish this new major release. FreeCast is a peer-to-peer streaming solution based on Ogg encoding format. Audio (Ogg/Vorbis) or video (Ogg/Theora) streaming content are thus allowed. FreeCast is now two years old, and the experience we gained through its development and use led us to a deep rewriting of the protocol since the transport layer was switched from TCP to UDP. We also added the long-awaited NAT traversal: FreeCast networks won't be stopped anymore by misconfigured NATs. FreeCast Manager has been thoroughly reviewed by our user community, and we added some new features, such as the ability of broadcasting a playlist/list of files thanks to an integrated Ogg Vorbis encoder. To ease the use of FreeCast Mananager, one simple dialog allows you to setup your broadcast. With FreeCast's "Click & Broadcast", broadcasting your own content has never been so easy. Changelog in brief: UDP transport layer, NAT traversal, STUN support, Latency analysis, Embedded Ogg Vorbis encoder, FreeCast Manager Setup GUI, Improved Windows installer Links : - freecast.org: http://www.freecast.org - Listening with Freecast: http://www.freecast.org/listen - Streaming with FreeCast: http://www.freecast.org/broadcast - Complete changelog: http://download.freecast.org/README.html - Debian package: http://debian.tryphon.org -- Alban Peignier <alban.peignier(a)free.fr> http://people.tryphon.org/~alban

18 years, 1 month

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Linux-audio-user May 2006