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** Changed in: pulseaudio (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1295776

Title:
  usb mic stops after few seconds

Status in pulseaudio package in Ubuntu:
  Incomplete

Bug description:
  Logitech AK5370 USB microphone works for a few seconds, then go mute,
  as seen from PAVU.

  Unplugging and repluging will cause the mic to be recognized again for
  a few seconds.

  This is new behavior, although I recall similar problem years ago.

  
  ~$ lsusb
  Bus 004 Device 002: ID 1532:0012 Razer USA, Ltd 
  Bus 004 Device 004: ID 0556:0001 Asahi Kasei Microsystems Co., Ltd AK5370 I/F 
A/D Converter
  Bus 005 Device 002: ID 04ca:002a Lite-On Technology Corp. 
  Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

  $ lsb_release -rd
  Description:  Ubuntu 12.04.4 LTS
  Release:      12.04

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: pulseaudio 1:1.1-0ubuntu15.4
  ProcVersionSignature: Ubuntu 3.5.0-47.71~precise1-generic 3.5.7.30
  Uname: Linux 3.5.0-47-generic x86_64
  NonfreeKernelModules: nvidia
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.25.
  ApportVersion: 2.0.1-0ubuntu17.6
  Architecture: amd64
  Card0.Amixer.info:
   Card hw:0 'SB'/'HDA ATI SB at 0xfeaf0000 irq 16'
     Mixer name : 'Realtek ALC887'
     Components : 'HDA:10ec0887,105b0e37,00100202'
     Controls      : 44
     Simple ctrls  : 20
  Card1.Amixer.info:
   Card hw:1 'NVidia'/'HDA NVidia at 0xfcf7c000 irq 19'
     Mixer name : 'Nvidia GPU 0b HDMI/DP'
     Components : 'HDA:10de000b,10de0101,00100200'
     Controls      : 24
     Simple ctrls  : 4
  Card2.Amixer.info:
   Card hw:2 'AK5370'/'AKM AK5370 at usb-0000:00:12.1-3, full speed'
     Mixer name : 'USB Mixer'
     Components : 'USB0556:0001'
     Controls      : 2
     Simple ctrls  : 1
  Card2.Amixer.values:
   Simple mixer control 'Mic',0
     Capabilities: cvolume cvolume-joined cswitch cswitch-joined penum
     Capture channels: Mono
     Limits: Capture 0 - 78
     Mono: Capture 72 [92%] [14.00dB] [on]
  Date: Fri Mar 21 10:44:10 2014
  InstallationMedia: Mythbuntu 12.04.2 "Precise Pangolin" - Release amd64 
(20130213)
  MarkForUpload: True
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: pulseaudio
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 06/10/2010
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 080016
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: A88GMV
  dmi.board.vendor: FOXCONN
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: To Be Filled By O.E.M.
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvr080016:bd06/10/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnFOXCONN:rnA88GMV:rvr1.0:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
  dmi.product.name: To Be Filled By O.E.M.
  dmi.product.version: To Be Filled By O.E.M.
  dmi.sys.vendor: To Be Filled By O.E.M.

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