Description of problem: While recording or listening to the Microphone of the Logitech UltraVision USB Device 0x46d:0x8c9, the audio is mixed with a constant noise at -35db, and clicks with 0db every 3.5 seconds.



Version-Release number of selected component (if applicable):
!!Kernel Information
!!------------------

Kernel release:    3.11.8-200.fc19.x86_64
Operating System:  GNU/Linux
Architecture:      x86_64
Processor:         x86_64
SMP Enabled:       Yes


!!ALSA Version
!!------------

Driver version:     k3.11.8-200.fc19.x86_64
Library version:    
Utilities version:  1.0.27.2

!!Soundcards recognised by ALSA
!!-----------------------------

 0 [U0x46d0x8c9    ]: USB-Audio - USB Device 0x46d:0x8c9
                      USB Device 0x46d:0x8c9 at usb-0000:00:1d.0-1.7.1, high speed


How reproducible: 100%

Plug this webcamera in, record audio with any application.


Actual results: Noise, clicks and some microphone sound.


Expected results: Microphone sound only.


Additional info:

The microphone was working fine, with a crystal clear sound in older fedora versions. Can not recall when this bug appeard, first I noticed with skype, but now with advanced speech to text usage the microphone got very important.