[Alsa-user] Wonders with alsa
Hello, Recently I'vet some alsa quirks. First, after the computer upgrade I've found that the sound card (Crystal 4281) and SCSI host adapter share the same IRQ. I've tried to fix this and move SCSI into another PCI slot (and haven't touched the soundcard). The devices appeared at the different IRQ's but the sound has become distorted like it would be overdriven, but the loudness have been normal and the mixer settings haven't affected this distortion. When I've moved the soundcard back the distortions have disappeared. Another issue: when I start mplayer with -ao alsa, then pause it and then resume, the playback doesn't resume. This doesn't appear with -ao oss. Xine, when paused and resumed, starts playback without sound, put pressing 'escape' twice returns the sound. Kernel 2.6.25 (patched, from ALT Linux Sisyphus repository), alsa 1.0.16 WBR, Yury. - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] alsa does not output to spdif on SiS964
On Saturday 02 August 2008 09:35, Mikhail Ramendik wrote: > I have debian etch, kernel 2,6,18, on a SiS964 motherboard. I want to use > spdif output. > > It was working great for many months. However, recently (possibly after a > kernel security update) SPDIF output has stopped working. mmh... well, if it is some bug introduced with some kernel security fix, as a possible workaround you may try to use the new 2.6.24 "etchnhalf" kernel introduced with the latest Etch "dot" release. (you'll also get a newer ALSA and a great many new features with it as an extra bonus... :-) Ciao, Paolo. -- Skype: Paolo.Saggese http://borex.lngs.infn.it/saggese You can still escape from the GATES of hell: Use Linux! - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
[Alsa-user] Record audio with Philips SPC520NC webcam
Hi,
I have a Philips SPC520NC webcam, which works fine with the linux UVC driver.
The only problem I have is to record audio using the build in
microphone. (Under Windows the microphone works well.)
I am using kernel 2.6.26 and the build in snd_usb_audio and alsa version 1.0.17.
After arround 5 seconds I am getting an "read error: I/O Error" message, and I
am getting an empty wav file (only the wav header is in there).
I have attached an lsusb -v output.
Do you need more debug output?
Any suggestion?
[EMAIL PROTECTED] ~/wav $ arecord -D hw:1,0 -c 1 -f S16_LE -v test.wav
Recording WAVE 'test.wav' : Signed 16 bit Little Endian, Rate 8000 Hz, Mono
Hardware PCM card 1 'USB Video Camera' device 0 subdevice 0
Its setup is:
stream : CAPTURE
access : RW_INTERLEAVED
format : S16_LE
subformat: STD
channels : 1
rate : 8000
exact rate : 8000 (8000/1)
msbits : 16
buffer_size : 4000
period_size : 1000
period_time : 125000
tstamp_mode : NONE
period_step : 1
avail_min: 1000
start_threshold : 1
stop_threshold : 4000
silence_threshold: 0
silence_size : 0
boundary : 9007199254740992000
arecord: pcm_read:1348: read error: Eingabe-/Ausgabefehler
(arecord: pcm_read:1348: read error: I/O Error)
Changing the sample rate does not make any difference.
Thanks, Artem
Bus 001 Device 005: ID 0471:0334 Philips
Device Descriptor:
bLength18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 239 Miscellaneous Device
bDeviceSubClass 2 ?
bDeviceProtocol 1 Interface Association
bMaxPacketSize064
idVendor 0x0471 Philips
idProduct 0x0334
bcdDevice0.00
iManufacturer 0
iProduct1 USB Video Camera
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 422
bNumInterfaces 4
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 98mA
Interface Association:
bLength 8
bDescriptorType11
bFirstInterface 0
bInterfaceCount 2
bFunctionClass 14 Video
bFunctionSubClass 3 Video Interface Collection
bFunctionProtocol 0
iFunction 1 USB Video Camera
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass14 Video
bInterfaceSubClass 1 Video Control
bInterfaceProtocol 0
iInterface 1 USB Video Camera
VideoControl Interface Descriptor:
bLength13
bDescriptorType36
bDescriptorSubtype 1 (HEADER)
bcdUVC 1.00
wTotalLength 77
dwClockFrequency 48.00MHz
bInCollection 1
baInterfaceNr( 0) 1
VideoControl Interface Descriptor:
bLength18
bDescriptorType36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 1
wTerminalType 0x0201 Camera Sensor
bAssocTerminal 0
iTerminal 0
wObjectiveFocalLengthMin 0
wObjectiveFocalLengthMax 0
wOcularFocalLength0
bControlSize 3
bmControls 0x
VideoControl Interface Descriptor:
bLength11
bDescriptorType36
bDescriptorSubtype 5 (PROCESSING_UNIT)
Warning: Descriptor too short
bUnitID 3
bSourceID 1
wMaxMultiplier 0
bControlSize2
bmControls 0x157b
Brightness
Contrast
Saturation
Sharpness
Gamma
White Balance Temperature
Backlight Compensation
Power Line Frequency
White Balance Temperature, Auto
iProcessing64
bmVideoStandards 0x1a
NTSC - 525/60
SECAM - 625/50
NTSC - 625/50
VideoControl Interface Descriptor:
bLength26
bDescriptorType36
bDescriptorSubtype 6 (EXTENSION_UNIT)
bUnitID 6
guidExtensionCode {d2090058-6fe7-2446-8512-76cdd8dda14e}
bNumControl 2
bNrPins 1
baSourceID( 0) 3
bControlSize1
bmControls( 0) 0x03
iExtension 0
VideoControl Interface Descriptor:
bLength
Re: [Alsa-user] Wonders with alsa
-Original Message- From: Yury Aliaev <[EMAIL PROTECTED]> To: alsa-user@lists.sourceforge.net Date: Tue, 05 Aug 2008 13:03:18 +0400 Subject: [Alsa-user] Wonders with alsa [snip] > > Kernel 2.6.25 (patched, from ALT Linux Sisyphus repository), alsa 1.0.16 > > WBR, > Yury. > You might be interested to read this post: http://www.linuxquestions.org/questions/linux-kernel-70/no-glx-acceleration-with-kernel-2.6.26-657699/#post3230259 . Sometimes things get screwed up big, I remember my transition from Mandriva 10.0 to 10.1 (IIRV the versions) - sound-wise it was horrible, had to revert, Lee Revell acknowledge that realtime functionality was screwed up. Newer is not always better. Regards, Sergei. - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
[Alsa-user] dmixer
For alsa-lib-1.0.17rc2 the dmix plug-in is enabled by default (for the default "stereo" device). Would anybody know which setting I must override in /etc/asound.conf file to enable dmix for the surround51 device (among others)? I wish to be able to open any of the : stereo, surround40, or surround50 devices at the same time and have their outputs mixed automatically. I was able make this happen by creating my own alsa devices, but I assume there is a cleaner way to do this (via overriding an existing setting)? CONFIDENTIALITY NOTICE: The contents of this email are confidential and for the exclusive use of the intended recipient. If you receive this email in error, please delete it from your system immediately and notify us either by email, telephone or fax. You should not copy, forward, or otherwise disclose the content of the email. - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
