[ALSA - driver 0001707]: Better support for new USB-Microphone Samson C01U

[ALSA - driver 0001707]: Better support for new USB-Microphone Samson C01U

[bugtrack]

The following issue has been SUBMITTED.
======================================================================
<https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1707> 
======================================================================
Reported By:                Toph
Assigned To:                Clemens Ladisch
======================================================================
Project:                    ALSA - driver
Issue ID:                   1707
Category:                   USB - usb-audio
Reproducibility:            always
Severity:                   tweak
Priority:                   normal
Status:                     assigned
Distribution:               gentoo
Kernel Version:             2.6.15-ck1
======================================================================
Date Submitted:             01-03-2006 22:42 CET
Last Modified:              01-03-2006 22:42 CET
======================================================================
Summary:                    Better support for new USB-Microphone Samson C01U
Description: 
I recently bought this microphone:
http://www.samsontech.com/products/productpage.cfm?prodID=1810&brandID=2
and have been quite pleased to see that it kind of works with alsa. I've
only been puzzled by a few oddities: Although the mic is mono, I get a
stereo input with 2 controls, which did even influence the sound on both
channels separatly, but in a not-so-clear way.

Since neither the windows, nor the OSX usb-audio driver are able to fully
control the device, especially the internal gain-control, Samson has
published a modified driver & tool to control such parameters. I have
investigated that tool with an usb-traffic sniffer (usbsnoop).

I did also do some experiments with the alsa driver to see, what the
controls really do and how the device might be designed internally. I have
found out about everything needed to make the device fully supported, I
just don't really know how to implement it, so I'm hoping someone will
guide and help me. Although I'd really like to, I'm not a kernel hacker.

What I basically want to do is remap and rename the mixer-controls and
output lines alsa exposes. Is that what the quirks are for?

Details about the device and my findings follow below:
======================================================================

Issue History
Date Modified  Username       Field                    Change              
======================================================================
01-03-06 22:42 Toph           New Issue                                    
01-03-06 22:42 Toph           Distribution              => gentoo          
01-03-06 22:42 Toph           Kernel Version            => 2.6.15-ck1      
======================================================================




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[ALSA - driver 0001707]: Better support for new USB-Microphone Samson C01U

[bugtrack]

A NOTE has been added to this issue.
======================================================================
<https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1707> 
======================================================================
Reported By:                Toph
Assigned To:                Clemens Ladisch
======================================================================
Project:                    ALSA - driver
Issue ID:                   1707
Category:                   USB - usb-audio
Reproducibility:            always
Severity:                   tweak
Priority:                   normal
Status:                     assigned
Distribution:               gentoo
Kernel Version:             2.6.15-ck1
======================================================================
Date Submitted:             01-03-2006 22:42 CET
Last Modified:              01-04-2006 17:23 CET
======================================================================
Summary:                    Better support for new USB-Microphone Samson C01U
Description: 
I recently bought this microphone:
http://www.samsontech.com/products/productpage.cfm?prodID=1810&brandID=2
and have been quite pleased to see that it kind of works with alsa. I've
only been puzzled by a few oddities: Although the mic is mono, I get a
stereo input with 2 controls, which did even influence the sound on both
channels separatly, but in a not-so-clear way.

Since neither the windows, nor the OSX usb-audio driver are able to fully
control the device, especially the internal gain-control, Samson has
published a modified driver & tool to control such parameters. I have
investigated that tool with an usb-traffic sniffer (usbsnoop).

I did also do some experiments with the alsa driver to see, what the
controls really do and how the device might be designed internally. I have
found out about everything needed to make the device fully supported, I
just don't really know how to implement it, so I'm hoping someone will
guide and help me. Although I'd really like to, I'm not a kernel hacker.

What I basically want to do is remap and rename the mixer-controls and
output lines alsa exposes. Is that what the quirks are for?

Details about the device and my findings follow below:
======================================================================

----------------------------------------------------------------------
 tiwai - 01-04-06 17:23 
----------------------------------------------------------------------
I recommend you to post this to alsa-devel ML rather than here on BTS in
cases of not real "bugs"...

Issue History
Date Modified  Username       Field                    Change              
======================================================================
01-03-06 22:42 Toph           New Issue                                    
01-03-06 22:42 Toph           Distribution              => gentoo          
01-03-06 22:42 Toph           Kernel Version            => 2.6.15-ck1      
01-04-06 16:58 Toph           Issue Monitored: Toph                        
01-04-06 17:23 tiwai          Note Added: 0007438                          
======================================================================




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for problems?  Stop!  Download the new AJAX search engine that makes
searching your log files as easy as surfing the  web.  DOWNLOAD SPLUNK!
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