Linux-audio-user April 2004

linux-audio-user@lists.linuxaudio.org

141 participants
177 discussions

[linux-audio-user] LADSPA plugins...Chorus...

by Russell Hanaghan

Hi all, Looking for any new plugins that may be around, specifically a Chorus or Flanger that I can make sound close to a chorus... I have Steve's plugs and also TAP. SWH Chorus is not quite what I'm looking for. It is specifically for use on Acoustic guitar live and needs to be deep and "ringy" if possible. And as always, CPU is at a premium... Tryed Creox as a seperate Jack enabled app....locks up my MDK 9.2 Laptop! Looked for other apps that may work but dont see too many out there with Jack capability for guitar specific stuff... R~

21 years

Re: [linux-audio-user] Re: shuttle xpcs as linux music boxes? (Ch ristian Frisson)

by Stephen Hassard

Kjetil Svalastog Matheussen wrote: >>My tip: don't go for the hypest nForce2 models of the Shuttle series, buy a >>cheaper (or older) one, whose chipsets are known compliant with Linux, disable >>the video chipset, and invest the gained price difference on an entry 3D video >>card with built-in RAM! > No, nforce2 is well supported in linux now. I don't know about nforce3... I've had mixed experiences with the asus sk8n nforce3 motherboard, although it's more implementation specific quirks than issues with the chipset itself. The GPL'd forcedeth ethernet driver seems to work really well in my experience. Debian's sarge beta 3 install CD even includes the forcedeth driver ootb. Really nice! later, Steve

21 years

[linux-audio-user] Re: shuttle xpcs as linux music boxes? (Christian Frisson)

by Kjetil Svalastog Matheussen

Christian Frisson: > > Hi, > I've got a one-year-old Shuttle SB51G, loaded with a Terratec EWX 24/96 > "ice1712" soundcard and a Gygabyte Radeon 9000 Pro 128 MB video card (just for > the facts...), running Fedora Core 1 / Planet CCRMA successfully. Getting circa > 11 ms of latency with Jack set (untweaked) at 256 frames per period and 2 > periods per buffer. > > While adding an PCI soundcard seems quite natural to make music on these boxes, > why not add a RAM-loaded AGP video card too then? > I wouldn't do that, I think. It just adds heat, and that box makes horrible noise when heated. At least mine does. The built in graphic card and soundcard works just great. > My tip: don't go for the hypest nForce2 models of the Shuttle series, buy a > cheaper (or older) one, whose chipsets are known compliant with Linux, disable > the video chipset, and invest the gained price difference on an entry 3D video > card with built-in RAM! > No, nforce2 is well supported in linux now. I don't know about nforce3... --

21 years

[linux-audio-user] Unmuting ALSA sound cards at startup

by Mr.Freeze

Hey, I've found a way of unmuting ALSA sound cards at startup, but it does work only if alsamixer (or the card-specific mixer) is just launched before all other audio apps. If I launch XMMS, for example, first, all levels are set to 0. Here's the code to be put at the end of /etc/modules.conf: post-install snd-card-1 /usr/sbin/alsactl restore >/dev/null 2>&1 || : pre-remove snd-card-1 /usr/sbin/alsactl store >/dev/null 2>&1 || : Do you know a better-working solution? Cheers, Mr°Freeze

21 years

[linux-audio-user] Re: Picky Shuttle audio chipset conflicting with other cards...

by Mr.Freeze

Re- Stephen Hassard <steve(a)hassard.net> wrote: > I've seen that the ice1724 driver (which is based on ice1712) is unable > to mmap on /dev/dsp. What's the use of this mod then? > The trick is to switch the order of your cards so that /dev/dsp is > attached to your ac97 on-board first, instead of your ice1712. If you > make 'alias snd-card-0 snd-intel8x0', you'll probably find the game will > work happily. True, once I can make this crappy "intel8x0" utter any sound, and cope with the other cards (the first one only in /etc/modules.conf is working)! Modprobing it works silently, cating /proc/asound/cards tells the truth, routing XMMS to /dev/dsp aliased to it makes the built-in spectrogram appear... but no sound comes out of my speakers (cables connections and volume sliders checked). As I said, there's that "[Off]" label on all alsamixer channels. Cheers, Christian

21 years

Re: *!* [linux-audio-user] Picky Shuttle audio chipset conflictin g with other cards...

by Stephen Hassard

I've seen that the ice1724 driver (which is based on ice1712) is unable to mmap on /dev/dsp. The trick is to switch the order of your cards so that /dev/dsp is attached to your ac97 on-board first, instead of your ice1712. If you make 'alias snd-card-0 snd-intel8x0', you'll probably find the game will work happily. later, Steve Mr.Freeze wrote: > Hey, > I'm using an "ice1712" soundcard (with whom I satisfied) on a Shuttle box, whose > "intel8x0" audio chipset powers I'm trying to "revive", in order to attempt > again to make the game Enemy Territory work at last, as it returned the > following error, when using the better soundcard of the two: > > ------- sound initialization ------- > /dev/dsp: Input/output error > Could not mmap /dev/dsp > ------------------------------------ > > One reported on the ET forum (on the thread "ET / Linux: no sound!") that it is > supposed to be due to this "ice1712" driver, quoting the "Advanced Linux Sound > Architecture - Driver Configuration Guide" > > MMAP on ICE1712 driver > ---------------------- > ICE1712 supports only the unconventional format, interleaved 10-channels 24bit > (packed in 32bit) format. Therefore you cannot mmap the buffer as the > conventional (mono or 2-channels, 8 or 16bit) format on OSS. > > When it comes to set multiple cards, the first audio card only on > /etc/modules.conf, whichever of the two it is, is installed after the boot-up. > Loading the other card afterwards by hand with modprobe does work: it is > detected on /proc/asound/cards. > Why? > > Here's a snippet of my /etc/modules.conf: > > # ALSA portion > alias char-major-116 snd > alias char-major-14 soundcore > > alias snd-card-0 snd-ice1712 > alias snd-card-1 snd-intel8x0 > > # Terratec EWX 24/96 > alias sound-slot-0 snd-ice1712 > alias sound-service-0-0 snd-mixer-oss > alias sound-service-0-1 snd-seq-oss > alias sound-service-0-3 snd-pcm-oss > alias sound-service-0-8 snd-seq-oss > alias sound-service-0-12 snd-pcm-oss > options snd-card-ice1712 snd_enable > alias /dev/dsp1 snd-pcm-oss > > # Shuttle Intel Audio Chipset > alias sound-slot-1 snd-intel8x0 > alias sound-service-1-0 snd-mixer-oss > alias sound-service-1-1 snd-seq-oss > alias sound-service-1-3 snd-pcm-oss > alias sound-service-1-8 snd-seq-oss > alias sound-service-1-12 snd-pcm-oss > options snd-intel8x0 snd_enable > alias /dev/dsp snd-pcm-oss # ET can only route /dev/dsp > > But... even if XMMS, for example, does play sounds when routed to the OSS > emulated "intel8x0" at /dev/dsp, no sound gets out of it and alsamixer labels > all volume controls by appending "[Off]". > Why? > > Two problems to be solved then... > > Cheers, > Mr°Freeze >

21 years

[linux-audio-user] Picky Shuttle audio chipset conflicting with other cards...

by Mr.Freeze

Hey, I'm using an "ice1712" soundcard (with whom I satisfied) on a Shuttle box, whose "intel8x0" audio chipset powers I'm trying to "revive", in order to attempt again to make the game Enemy Territory work at last, as it returned the following error, when using the better soundcard of the two: ------- sound initialization ------- /dev/dsp: Input/output error Could not mmap /dev/dsp ------------------------------------ One reported on the ET forum (on the thread "ET / Linux: no sound!") that it is supposed to be due to this "ice1712" driver, quoting the "Advanced Linux Sound Architecture - Driver Configuration Guide" MMAP on ICE1712 driver ---------------------- ICE1712 supports only the unconventional format, interleaved 10-channels 24bit (packed in 32bit) format. Therefore you cannot mmap the buffer as the conventional (mono or 2-channels, 8 or 16bit) format on OSS. When it comes to set multiple cards, the first audio card only on /etc/modules.conf, whichever of the two it is, is installed after the boot-up. Loading the other card afterwards by hand with modprobe does work: it is detected on /proc/asound/cards. Why? Here's a snippet of my /etc/modules.conf: # ALSA portion alias char-major-116 snd alias char-major-14 soundcore alias snd-card-0 snd-ice1712 alias snd-card-1 snd-intel8x0 # Terratec EWX 24/96 alias sound-slot-0 snd-ice1712 alias sound-service-0-0 snd-mixer-oss alias sound-service-0-1 snd-seq-oss alias sound-service-0-3 snd-pcm-oss alias sound-service-0-8 snd-seq-oss alias sound-service-0-12 snd-pcm-oss options snd-card-ice1712 snd_enable alias /dev/dsp1 snd-pcm-oss # Shuttle Intel Audio Chipset alias sound-slot-1 snd-intel8x0 alias sound-service-1-0 snd-mixer-oss alias sound-service-1-1 snd-seq-oss alias sound-service-1-3 snd-pcm-oss alias sound-service-1-8 snd-seq-oss alias sound-service-1-12 snd-pcm-oss options snd-intel8x0 snd_enable alias /dev/dsp snd-pcm-oss # ET can only route /dev/dsp But... even if XMMS, for example, does play sounds when routed to the OSS emulated "intel8x0" at /dev/dsp, no sound gets out of it and alsamixer labels all volume controls by appending "[Off]". Why? Two problems to be solved then... Cheers, Mr°Freeze

21 years

Re: [linux-audio-user] shuttle xpcs as linux music boxes?

by Stephen Hassard

Hi, One thing that I've found recently is the Antec Aria case (http://www.antec-inc.com/aria.html) which fit regular mATX motherboards, and since it's mATX most motherboards will handle 1 AGP and 3 PCI cards. It's definitely a little bigger than a Shuttle, but gives you a lot more choice in chipsets and processors. later, Steve derek holzer wrote: > Hi all, > > resurrecting an old thread for my own evil purposes ;-) > > I am looking to buy a Shuttle SN41G2 for use in an audio installation at > European Media Arts Festival this month. Everything looks cool, except > that VGA Shared Memory. As a devout follower of RME, I read everything > on their site about hardware recommendations, and one of the big > warnings is this Shared Graphics Memory. This means that the graphics > card uses normal RAM for its graphics-handling. The Shuttle says it > comes with a Geforce4 MX, and that it "features" 128 Mb of shared > memory. This sounds to me more like 128 Mb that gets taken away from > audio processing!! > > Can anybody tell me if they have run into audio dropout problems with > this machine, and most importantly while using an add-on soundcard. I > will be using a Delta 66 in this machine. I know that it gets glitches > with PD + ALSA with default settings on the built-in Realtek card, but I > won't be using that anyway.... > > Other problem I know of is that new kernel modules are needed for the > built-in NIC ethernet card, but I can handle that. > > robcanning wrote: > >> Does anybody know if i can access more than 2 the 5.1 outputs on the >> onboard audio chip with PD or should i go ahead and get an SBLive for 4 >> outs? > > > To answer Rob's question, look for the thread on pd list called "nForce > chipset". It was generally concluded that using the 5.1 outputs calls on > *extremely* proprietary Dolby [en/de]coding. > > best, > Derek >

21 years

Re: [linux-audio-user] shuttle xpcs as linux music boxes?

by robcanning

hi, I just bought one of these little boxes (Shuttle Spacewalker XPC SN41G2 nForce2 Aluminium Barebones System - AMD Athlon XP to use for an installation and have installed redhat9 on it and soon will be planetccrmaing it - it is a very quiet machine as it comes and i believe you can get an optional super quiet power supply for it - very easy to build/configure - i'll let you know if i run into any audio worries. Does anybody know if i can access more than 2 the 5.1 outputs on the onboard audio chip with PD or should i go ahead and get an SBLive for 4 outs? nVida Corporation nForce Multimedia audio controller [VIA VT82C686B] (rev a2) nVida Corporation nforce AC97 audio controller (MCP) (rev 1a) rob -- robcanning <rscanning(a)eircom.net> www.robcanning.utvinternet.com

21 years

[linux-audio-user] Simple sound recording

by Tom Trebisky

OK, here is what I want to do: 1) Take my linux laptop (now with Fedora core 1) and connect a signal to the line-in jack and record audio to the laptop hard drive. Ideally I would like to do something like generate an mp3 file to save hard drive space. The goal here is to record conference speakers and generate a CD containing MP3 files of a days worth of people speaking. (Using something like MP3 is not essential, but would save space on the hard drive). Since all I am after is decent vocal audibility, I don't need exquisite audio. I will be getting a feed from a mixer. My laptop is a Toshiba Tecra 8100, which has a Yamaha YMF-744B (supposedly this was supported under ALSA 0.5.8) 2) What I have done so far ... (apart from just get bewildered by all the audio jargon under linux -- there is OSS, ALSA, JACK, ... maybe that is most of what I have tripped over so far) Find fedora RPM's of the alsa stuff (vintage 1.0.2) and load them onto the laptop. Read stuff on the ALSA site and linux-sound.org (which I am still doing). I was playing yesterday on my desktop system -- I installed a Sound Blaster Live card and had it playing a CD using the OSS drivers, now I will see if it still works with the ALSA drivers. I couldn't get gnome-sound-recorder to do anything, but maybe it will work with the ALSA drivers. I am looking at an application called qarecord (I like it since it has level meters -- I want to see something move when I squak into a microphone and the gnome recorder seems to have nothing like this), I have got the source, but will have to build it. So what am I asking? Any help and pointers -- I don't want to make this unduly complicated. I wish I could just hook up a signal source bring up a GUI, click on record and have a .wav file coming out of stdout that I could pipe to some compression tool. Surely one of you out there has done this -- my goal was to test fly this Wednesday night, but so far I am a day and 1/2 into this and am just getting deeper and deeper without seeing progress towards my goal. Thanks for anyone who has the time to offer some help. Tom -- Tom Trebisky MMT Observatory University of Arizona -- Tucson tom(a)mmto.org

21 years

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Linux-audio-user April 2004