Re: [Alsa-user] Audio Hardware for multichannel output
You might find something on the jack/freebob sites. Specifically, here's a list of devices supported on freebob: http://freebob.sourceforge.net/index.php/List_of_Supported_Devices it's NOT alsa though, if you must use that. If you're writing a java app, you can even use jjack to interface jack. HOWEVER: I'm writing an application that also needs to output up to 8-10 channels, but I also need input. I though the the Terratec Phase 88 solved all my problems combined with jack/freebob, but found to my surprise that the input channels were PASSIVE! That is, unlike ordinary soundcards, you can't use ordinary headset type microphones, I need to preamplify the signal before giving it to to the Terratec rack... So: anyone knows of any really cheap multichannel preamp? I don't need professional sound, just phone/GSM type quality. Regards, Helge Fredriksen On 8/31/07, Jeromie Clark [EMAIL PROTECTED] wrote: Hi - I've been looking around, but I can't seem to find a recommended list of hardware for use with Alsa and multichannel output, and I'm wondering if anyone on the list has hands-on experience with hardware that works reliably in this application. Specifically, I'm looking to drive between 16 separate mono outputs from a single PC, using a custom application that I'll write in either C++ or java. It looks like alsa allows you to bind multiple consumer-grade cards as a single device for this purpose, although I'm just as happy (and would probably prefer) to buy a rock-solid, purpose-built, commercial-grade piece of hardware. I'd rather pay a little extra and avoid the nightmarish headache of trying to get long-term consistency out of four soundblasters. If you're not comfortable endorsing a particular venue or solution on the list, please feel free to mail me directly. Thanks in advance, Jeromie Clark - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
[Alsa-user] Headphone for Intel 82801G.
Hello, I'm going to explain my problem: I've got some sound in my speaker but not in my headphone jack. I'm on a KeyNux laptop with Debian lenny. I have removed packages alsa-* because with them, the speakers works, but the headphone doesn't. Here is my lspci: http://neo2017.free.fr/alsa/lspci.log We can see: 00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 02) So, I have an Intel integrated sound card with a Realtek ALC883 chipset (see below). I tried (compiled installed) this version of ALSA: Stable Release(2007-06-11) Driver (alsa-driver) 1.0.14 Library (alsa-lib) 1.0.14a Plugins (alsa-plugins) 1.0.14a Utilities (alsa-utils) 1.0.14 Firmware alsa-firmware) 1.0.14 And the Daily Snapshot Tarballs too, but without any success. To build alsa-driver, I did : ./configure --with-cards=all --with-card-options=all ; make; sudo make install For all other tarball, I did: ./configure ; make; sudo make install Then, I did: sudo alsaconf = My soundcard had been correctly detected: http://neo2017.free.fr/alsa/alsaconf01.png Then, I reboot. I think it is not necessary due to the /etc/init.d/alsasound script, but I nevertheless reboot. In alsamixer I can't adjust the sound level of my headphone and I have no sound in. Note: The sound in my speakers works again. I can see it in alsamixer: Card: HDA Intel Chip: Realtek ALC883 See: http://neo2017.free.fr/alsa/alsamixer01.png In the file: /etc/modprobe.d/sound there are: alias snd-card-0 snd-hda-intel alias sound-slot-0 snd-hda-intel I tried to add this: options snd-hda-intel model=XXX Where, XXX is a model picked in this list: ./alsa-driver-hg20070830/alsa-kernel/Documentation/ALSA-Configuration.txt The extract for my chipset: http://neo2017.free.fr/alsa/ALC883.log For each model I tried, I did a /etc/init.d/alsasound restart before start alsamixer to verify if I have sound for the headphone. So, someone know where I'm wrong ? Is the problem is with alsa-driver or alsa-utils (alsamixer) ? Is a patch exist for my sound card/chipset ? Thank you ! Guillaume. - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] Mixer problem with cmipci
On Thu, 2007-08-30 23:43:26 +0200, Jan-Benedict Glaw [EMAIL PROTECTED] wrote: Just out of interest, I ordered another, similar card (Ultron Octosound 7.1, lspci: C-Media Electronics Inc CM8738 (rev 10), /proc/asound/cards: C-Media PCI CMI8738-MC8 (model 68)) Plugged all in, fired up speaker-test, everything seems to work right out of the box. Fired up an alsaplayer to play some FLAC. Switched on Four Channel Mode for a test, which nicely adds sound to the rear left/right outputs. After the FLAC ended, I fired up speaker-test again (and of course switched off Four Channel Mode.) This time, it's different than before: front center/LFE, front left/right and side left/right are okay, but rear right/left are highly distorted. Did this now: * Power-cycle * speaker-test * dump registers (1) * alsaplayer (simple stereo FLAC) * dump registers (2) * speaker-test * dump registers (3) Everything that's important to speaker-test should be the same in (1) and (3), I guess. (Hand-crafted register disassembly at the end.) (1): 00: 00 00 00 00 04: 10 e0 00 00 08: 0c 00 09 80 0c: 00 00 00 2b 10: 80 00 00 00 14: 00 80 00 80 18: a0 20 c0 08 1c: 00 00 00 00 20: 10 00 d8 00 24: 01 01 00 04 28: ff ff ff ff 2c: ff ff ff ff 30: 00 00 00 00 34: 00 00 00 00 38: 00 00 00 00 3c: 00 00 00 00 (2): 00: 00 00 00 00 04: 10 fc 00 00 08: 0f 00 09 00 0c: 00 00 00 2b 10: 80 00 00 00 14: 00 00 00 00 18: 20 a0 80 08 1c: 00 00 00 00 20: 10 00 d8 00 24: 01 01 00 04 28: ff ff ff ff 2c: ff ff ff ff 30: 00 00 00 00 34: 00 00 00 00 38: 00 00 00 00 3c: 00 00 00 00 (3): 00: 00 00 00 00 04: 10 fc 00 00 08: 0f 00 09 80 0c: 00 00 00 2b 10: 80 00 00 00 14: 00 80 00 80 18: a0 a0 c0 08 1c: 00 00 00 00 20: 10 00 d8 00 24: 01 01 00 04 28: ff ff ff ff 2c: ff ff ff ff 30: 00 00 00 00 34: 00 00 00 00 38: 00 00 00 00 3c: 00 00 00 00 Diff (1) - (3): --- alsa.post-speaker-test1 2007-08-31 10:19:26.0 +0200 +++ alsa.post-speaker-test2 2007-08-31 10:25:00.0 +0200 @@ -1,12 +1,12 @@ C-Media PCI CMI8738-MC8 (model 68) at 0x1800, irq 19 00: 00 00 00 00 -04: 10 e0 00 00 -08: 0c 00 09 80 +04: 10 fc 00 00 +08: 0f 00 09 80 0c: 00 00 00 2b 10: 80 00 00 00 14: 00 80 00 80 -18: a0 20 c0 08 +18: a0 a0 c0 08 1c: 00 00 00 00 20: 10 00 d8 00 24: 01 01 00 04 Register 0x04 ~ Before: 0x07 CM_ASFC_SHIFT | 0x00 CM_DSFC_SHIFT | CM_BREQ After: 0x07 CM_ASFC_SHIFT | 0x07 CM_DSFC_SHIFT | CM_BREQ (DAC Sample Frequency changed) Register 0x08 ~ Before: CM_CHB3D5C | CM_SPDIF_SELECT1 | 0x03 CM_CH1FMT_MASK | 0x00 CM_CH0FMT_SHIFT After: CM_CHB3D5C | CM_SPDIF_SELECT1 | 0x03 CM_CH1FMT_MASK | 0x03 CM_CH0FMT_SHIFT (Ch0 Format changed) Register 0x18 ~ Before: CM_TXVX | CM_FM_EN | CM_AC3EN2 | CM_VIDWPPRT | CM_ENCENTER | CM_FLINKOFF After: CM_TXVX | CM_FM_EN | CM_AC3EN2 | CM_VIDWPPRT | CM_SPDF_AC97 | CM_ENCENTER | CM_FLINKOFF (SPDIF/Out changed from 44.1kHz to 48kHz) My guess is that the change to SPDIF/Out frequency and DAC Sample Frequency are annoying at best, but irrelevant here. Am I probably right that the changed ch0 format is the cause of the distortion? MfG, JBG -- Jan-Benedict Glaw [EMAIL PROTECTED] +49-172-7608481 Signature of: Alles sollte so einfach wie möglich gemacht sein. the second : Aber nicht einfacher. (Einstein) signature.asc Description: Digital signature - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] Mixer problem with cmipci
On Fri, 2007-08-31 12:03:10 +0200, Jan-Benedict Glaw [EMAIL PROTECTED] wrote: On Thu, 2007-08-30 23:43:26 +0200, Jan-Benedict Glaw [EMAIL PROTECTED] wrote: Register 0x08 ~ Before: CM_CHB3D5C | CM_SPDIF_SELECT1 | 0x03 CM_CH1FMT_MASK | 0x00 CM_CH0FMT_SHIFT After:CM_CHB3D5C | CM_SPDIF_SELECT1 | 0x03 CM_CH1FMT_MASK | 0x03 CM_CH0FMT_SHIFT (Ch0 Format changed) ...or alternatively, this is a bug somewhere in between with speaker-test (or the following library/kernel code) failing to set the right properties? MfG, JBG -- Jan-Benedict Glaw [EMAIL PROTECTED] +49-172-7608481 Signature of:http://www.chiark.greenend.org.uk/~sgtatham/bugs.html the second : signature.asc Description: Digital signature - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
[Alsa-user] Edirol UA-101 help.
Hi! I am new here. I upgraded my ALSA drivers about a month ago to get support for my Edirol soundcard. I would think it is not so well supported so I am offering for everything you could need to test it, or get information etc, for improving the driver for this card. The model is Edirol UA-101. Thank you all for the help. -- muZikè http://lastkth.blogspot.com - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] Mixer problem with cmipci
On Wed, 2007-08-29 11:32:19 +0200, Jan-Benedict Glaw [EMAIL PROTECTED] wrote: On Tue, 2007-08-28 08:28:39 +0200, Clemens Ladisch [EMAIL PROTECTED] wrote: Jan-Benedict Glaw wrote: On Mon, 2007-08-27 17:31:26 +0200, Clemens Ladisch [EMAIL PROTECTED] wrote: Jan-Benedict Glaw wrote: numid=35,iface=MIXER,name='IEC958 In Monitor' : values=on Try disabling this one. This setting causes the SPDIF input to be copied to the analog output; apparently, this disables any other output. [EMAIL PROTECTED]:~$ amixer cset numid=35 off numid=35,iface=MIXER,name='IEC958 In Monitor' ; type=BOOLEAN,access=rw--,values=1 : values=on Seems it cannot change this control's value? Strange. Please show the contents of /proc/asounc/card0/cmipci. Since I just bought that card and never tested it somewhere else: Could this just be a hardware problem / defect? From a look at the driver's sources, it seems that this mixer element directly maps to the low bit of CM_REG_MIXER1. Just gave it a test in a Windows box. I did only test stereo output (I'm not familiar with windows and didn't find a test program like speaker-test) with this degenerated Media Player, but there was audible output, which didn't work under Linux, probably due to the stuck 'IEC958 In Monitor' mixer element. MfG, JBG -- Jan-Benedict Glaw [EMAIL PROTECTED] +49-172-7608481 Signature of: http://perl.plover.com/Questions.html the second : signature.asc Description: Digital signature - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] Headphone for Intel 82801G.
This is a just a test. Sorry for it. Guillaume. --- Guillaume Dualé a écrit : Hello, I'm going to explain my problem: I've got some sound in my speaker but not in my headphone jack. I'm on a KeyNux laptop with Debian lenny. I have removed packages alsa-* because with them, the speakers works, but the headphone doesn't. Here is my lspci: http://neo2017.free.fr/alsa/lspci.log We can see: 00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 02) So, I have an Intel integrated sound card with a Realtek ALC883 chipset (see below). I tried (compiled installed) this version of ALSA: Stable Release(2007-06-11) Driver (alsa-driver) 1.0.14 Library (alsa-lib) 1.0.14a Plugins (alsa-plugins) 1.0.14a Utilities (alsa-utils) 1.0.14 Firmware alsa-firmware) 1.0.14 And the Daily Snapshot Tarballs too, but without any success. To build alsa-driver, I did : ./configure --with-cards=all --with-card-options=all ; make; sudo make install For all other tarball, I did: ./configure ; make; sudo make install Then, I did: sudo alsaconf = My soundcard had been correctly detected: http://neo2017.free.fr/alsa/alsaconf01.png Then, I reboot. I think it is not necessary due to the /etc/init.d/alsasound script, but I nevertheless reboot. In alsamixer I can't adjust the sound level of my headphone and I have no sound in. Note: The sound in my speakers works again. I can see it in alsamixer: Card: HDA Intel Chip: Realtek ALC883 See: http://neo2017.free.fr/alsa/alsamixer01.png In the file: /etc/modprobe.d/sound there are: alias snd-card-0 snd-hda-intel alias sound-slot-0 snd-hda-intel I tried to add this: options snd-hda-intel model=XXX Where, XXX is a model picked in this list: ./alsa-driver-hg20070830/alsa-kernel/Documentation/ALSA-Configuration.txt The extract for my chipset: http://neo2017.free.fr/alsa/ALC883.log For each model I tried, I did a /etc/init.d/alsasound restart before start alsamixer to verify if I have sound for the headphone. So, someone know where I'm wrong ? Is the problem is with alsa-driver or alsa-utils (alsamixer) ? Is a patch exist for my sound card/chipset ? Thank you ! Guillaume. - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] Mixer problem with cmipci
Jan-Benedict Glaw wrote: Register 0x04 ~ Before: 0x07 CM_ASFC_SHIFT | 0x00 CM_DSFC_SHIFT | CM_BREQ After:0x07 CM_ASFC_SHIFT | 0x07 CM_DSFC_SHIFT | CM_BREQ (DAC Sample Frequency changed) Register 0x08 ~ Before: CM_CHB3D5C | CM_SPDIF_SELECT1 | 0x03 CM_CH1FMT_MASK | 0x00 CM_CH0FMT_SHIFT After:CM_CHB3D5C | CM_SPDIF_SELECT1 | 0x03 CM_CH1FMT_MASK | 0x03 CM_CH0FMT_SHIFT (Ch0 Format changed) Register 0x18 ~ Before: CM_TXVX | CM_FM_EN | CM_AC3EN2 | CM_VIDWPPRT | CM_ENCENTER | CM_FLINKOFF After:CM_TXVX | CM_FM_EN | CM_AC3EN2 | CM_VIDWPPRT | CM_SPDF_AC97 | CM_ENCENTER | CM_FLINKOFF (SPDIF/Out changed from 44.1kHz to 48kHz) My guess is that the change to SPDIF/Out frequency and DAC Sample Frequency are annoying at best, but irrelevant here. Am I probably right that the changed ch0 format is the cause of the distortion? It could be any of the three changes. The FLAC file apparently is 44.1 kHz while speaker-test used 48 kHz by default, so I guess the driver doesn't correctly switch between these two frequencies. I'll do some testing over the weekend. Regards, Clemens - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] Mixer problem with cmipci
Jan-Benedict Glaw wrote: Just gave it a test in a Windows box. I did only test stereo output (I'm not familiar with windows and didn't find a test program like speaker-test) with this degenerated Media Player, but there was audible output, which didn't work under Linux, probably due to the stuck 'IEC958 In Monitor' mixer element. Well, now we'd need the source code of the Windows driver ... Regards, Clemens - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] chipsets
paul blakeley wrote: I have installed linux on a number of PCs over the last year or so. Each PC having a different audio chipset. Recently I have installed linux on PCs with the ALC888 and CS4299 chipset. I was able to work out the CS4299 chipset basically downloading the chipset block diagram from the manufacturer. I am sure I mapped all mixer controls but I had to guess some mixer controls. The ALC888 is different though, looking at the chipset block diagram there are potentially 50 simple mixer controls. The alsa mixer has around half that. The initialization and configuration of HDA codecs should be described by a table in the BIOS, but the snd-hda-intel driver has workarounds for many motherboards. The ALC888 is handled by the ALC883-specific code. With this chipset I am having trouble capturing from the line-in and mic input. I can only capture from the line-in. And even with this the signal is distorted. Please try the 1.0.15rc1 driver, there have been many changes in the HDA code since 1.0.14. If the driver doesn't know your motherboard, it is possible that you have more success if you load the driver with one of the model options. (See ALSA-Configuration.txt for a list of supported ALC883 models.) HTH Clemens - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] Only one capture source??
Daniel Porres wrote: [EMAIL PROTECTED]:/proc/asound/card0$ cat codec#0 Codec: Conexant CX20551 (Waikiki) ... Try loading the snd-hda-intel driver with the model=laptop-eapd option. (This model should be automatically used for Toshiba P100 laptops, but I guess you have a different one.) HTH Clemens - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] snd-usb-audio and the Actiontec Internet Phone Wizard
TheOneKEA wrote: On 8/30/07, Clemens Ladisch [EMAIL PROTECTED] wrote: It does have an extra interface that is independent of the three audio interfaces. I guess the driver uses that one to send vendor-specific control messages. So what else could be tried? I would really like to get this device working in Linux, if at all possible. You could ask the manufacturer for programming information and/or the driver source code, but this is unlikely to have any result. You could reverse engineer the protocol used by the Windows driver, if you know how to do it. Regards, Clemens - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] Edirol UA-101 help.
Mu Zike!! wrote: I am new here. I upgraded my ALSA drivers about a month ago to get support for my Edirol soundcard. I would think it is not so well supported so I am offering for everything you could need to test it, or get information etc, for improving the driver for this card. The model is Edirol UA-101. What we'd need is developer time. Regards, Clemens - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] Best USB based XLR3 interface to buy?
James Shatto wrote: The few vendor:device numbers I've researched yielded no entries in pciids.sf.net. USB IDs are completely different from PCI IDs. There is a USB device list at http://www.qbik.ch/usb/devices/. HTH Clemens - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] XLR3 interfaces?
James Shatto wrote: Is there a list of still produced USB based XLR3 microphone interfaces that actually work with linux/alsa? Tascam US-122L, US-144 I think the newer models are not supported. Digidesign mBox2 The mBox doesn't work. M-Audio Fast Track Pro Has issues. Lexicon Omega, Alpha, Lambda Alesis iO|2 SoundTech Lightsnake Unknown. They should work if they run on Windows or OS X without any separate driver, the magic words are class compliant. I'd like to do good quality (24 bit, 96kHz or better) recording on my laptop. I don't have firewire, and would like something portable. And need something that works (hopefully fully) in linux. 20Hz-20kHz response, minimum 96kHz stereo recording capabilities. Have a look at the Edirol UA-25. It is definitely supported. Preferably USB 2.0 based. You don't need high speed for 24 bits at 96 kHz, but full duplex won't work. There is no supported high speed device except the SB Audigy 2 NX. HTH Clemens - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] alsa buffer size
paul blakeley wrote: I have successfully increased the amount of buffer by writing a new value into /proc/asound/cardX/pcm*/sub*/prealloc. For a mono .wav file I was able to successfully change this from 64 to 512. I was really happy with this. I presume this value is in the units of kBytes? Yes. And that this value needs to be 2 to the n. ie 16,32,64 etc? No, it can be any value supported by the driver. Dont know why but I couldn't change this to 512, do you? Because the driver's upper limit for the buffer size is 512 KB. Regards, Clemens - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] alsa buffer size
paul blakeley wrote: I am writing an application that is generic enough to a number of different drivers. If thats possible! I am trying to achieve a 2 second of buffer for a number of different sample rates. This means that for a sample rate of 44.1KHz I require a buffer size of 88.2K frames For all the different types of sound cards that I have used I havent seen a buffer size 16K frames : ( I have noticed that various drivers have certain behaviour which makes writing a application that is generic for all drivers very difficult. For example for an intel chipset I have found that the driver was very versatile and allowed me to choose various period sizes for different buffer sizes. Whilst the driver for the CS4299 chipset, although allows a buffer size of upto 16K the period size has to be half that value. The CS4299 is just an AC'97 codec; the buffer constraints depend on the controller and/or the controller driver. Therefore this makes it impossible for me to use with the ALSA callback mechanism, which I need to use for the design to work! ALSA cannot guarantee that any specific buffer/period size combination is available on all sound cards. Your program must be able to work with any value. There are several sound cards that require exactly two periods per buffer. Why does your design need more? By the way how do I find out which driver is assigned to a chipset? /proc/asound/modules Can a driver be used on multiple chipsets? Yes, there are driver that can control several similar chipsets. Regards, Clemens - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] Audio Hardware for multichannel output
Le Thu, 30 Aug 2007 20:14:48 -0700, Jeromie Clark [EMAIL PROTECTED] a écrit : Hi - I've been looking around, but I can't seem to find a recommended list of hardware for use with Alsa and multichannel output, and I'm wondering if anyone on the list has hands-on experience with hardware that works reliably in this application. Specifically, I'm looking to drive between 16 separate mono outputs from a single PC, using a custom application that I'll write in either C++ or java. It looks like alsa allows you to bind multiple consumer-grade cards as a single device for this purpose, although I'm just as happy (and would probably prefer) to buy a rock-solid, purpose-built, commercial-grade piece of hardware. I'd rather pay a little extra and avoid the nightmarish headache of trying to get long-term consistency out of four soundblasters. If you're not comfortable endorsing a particular venue or solution on the list, please feel free to mail me directly. Thanks in advance, Jeromie Clark You can get 16 mono channels out of an audigy or live sound card with jack. Read emu10k1-jack.txt. Otherwise, it is much better sound cards like m-audio or RME hammerfall (look at the sound card matrix on the alsa website to see which ones are supported by alsa). I also think that it would be better to use jack with them if you want to do serious audio work. The m-audio and hammerfall can be synchronized if you need precise timing, when it is not possible to synchronize any consumer grade sound card without to modify the hardware clock of those cards. Ciao, Dominique - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
[Alsa-user] External mic on acer travelmate 3012WTMi
Hi everybody: I am having a problem configuring the linux sound on a laptop. Maybe I am missing something stupid and someone here can help me. The system is an Acer Travelmate 3012WTMi, which uses an intel 82801G HD controller. I have a Fedora Core 5 with the latest stable kernel release, 2.6.22.5. I load the snd_hda_intel module with options index=0 position_fix=1 model=acer and it mostly works: the only problem comes from the headphone mic input. When I plug a standard microphone, nothing comes in. But I tried to plug a pre-amplified signal (coming e.g. from an mp3-player) and then I see the input coming in the Line-in channel. The front microphone, BTW, keeps listening. My question is: how can I switch to use a non amplified mic on this machine? I suppose it would not be a big problem to have it on the Line-In channel, but I would prefer to have it on Mic. If anyone is interested, you can read the details of my system, taken from the alsa-info.sh script at http://homepages.cwi.nl/~luque/alsa-info.txt Any help would be appreciated. Many thanks in advance, Alejandro. ..Alejandro Luque... . ... . E-Mail: A dot Luque at cwi dot nl . Tel. +31 20 592 4208 . Web: http://www.phy.uni-bayreuth.de/~btpa16/ . CWI . P.O.Box 49079 . 1090GB Amsterdam (The Netherlands) . - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] Edirol UA-101 help.
Sorry, I'm not a programmer, just teleco engineer. I gues I'll get some experience but will take a little bit long. Anyway, if you need something else count with it. Thanks for the answer. BR, David. On 8/31/07, Clemens Ladisch [EMAIL PROTECTED] wrote: Mu Zike!! wrote: I am new here. I upgraded my ALSA drivers about a month ago to get support for my Edirol soundcard. I would think it is not so well supported so I am offering for everything you could need to test it, or get information etc, for improving the driver for this card. The model is Edirol UA-101. What we'd need is developer time. Regards, Clemens -- muZikè http://lastkth.blogspot.com - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] External mic on acer travelmate 3012WTMi
When I plug a standard microphone, nothing comes in. But I tried to plug a pre-amplified signal (coming e.g. from an mp3-player) and then I see the input coming in the Line-in channel. The front microphone, BTW, keeps listening. I've had trouble on my old laptop where if I use a mono adapter I don't get anything. My radioshack mic has a mono-ish plug. Apparently my old laptop wanted a stereo 1/8 plug. But a pair of stereo headphones makes a fair mono mic (left ear only). At least a good pair of over the ear headphones, I've never managed to get much of a signal out of in ear headphones. Hmmm. I just tested my theory on my new laptop(compaq presario) and it can record from a mono plug. I could swear it didn't on my old laptop(sony vaio). I no longer have that machine to test that theory with. Or it could also be the need to enable mic boost for a non pre-amplified signal. In addition to mic + gain mixer settings. HTH - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
