[Pkg-alsa-devel] Bug#640170: alsa-base: Crackling microphone with ALC889A

[Gedalya]

Package: alsa-base

Version: 1.0.23+dfsg-4
Severity: normal

Sound captured from the microphone is full of crackle. During a voice
conversation my speech would be accompanied with crackle but silence is
maintained when I'm not talking.
I'm using the onboard sound card on my motherboard, a Gigabyte EP45-UD3P, it
has Intel HD Audio with a Realtek ALC889A codec.

The problem was fixed by adding the following to /etc/modprobe.d/alsa-base.conf
:

options snd-hda-intel position_fix=2



-- Package-specific info:
--- Begin additional package status ---
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name           Version        Description
+++-==============-==============-============================================
ii  libasound2     1.0.24.1-2     shared library for ALSA applications
--- End additional package status ---
--- Begin /proc/asound/version ---
Advanced Linux Sound Architecture Driver Version 1.0.24.
--- End /proc/asound/version ---
--- Begin /proc/asound/cards ---
  0 [Intel          ]: HDA-Intel - HDA Intel
                       HDA Intel at 0xf1400000 irq 48
  1 [NVidia         ]: HDA-Intel - HDA NVidia
                       HDA NVidia at 0xee000000 irq 17
  2 [Q9000          ]: USB-Audio - QuickCam Pro 9000
                       Logitech, Inc. QuickCam Pro 9000 at usb-0000:00:1d.7-3, high speed
--- End /proc/asound/cards ---
--- Begin /dev/snd/ listing ---
total 0
drwxr-xr-x  2 root root       60 Sep  1 03:27 by-id
drwxr-xr-x  2 root root      100 Sep  1 03:27 by-path
crw-rw----+ 1 root audio 116,  8 Sep  1 03:27 controlC0
crw-rw----+ 1 root audio 116, 11 Sep  1 03:27 controlC1
crw-rw----+ 1 root audio 116, 13 Sep  1 03:27 controlC2
crw-rw----+ 1 root audio 116,  7 Sep  1 03:27 hwC0D2
crw-rw----+ 1 root audio 116, 10 Sep  1 03:27 hwC1D0
crw-rw----+ 1 root audio 116,  6 Sep  1 03:27 pcmC0D0c
crw-rw----+ 1 root audio 116,  5 Sep  2 18:47 pcmC0D0p
crw-rw----+ 1 root audio 116,  4 Sep  1 03:27 pcmC0D1c
crw-rw----+ 1 root audio 116,  3 Sep  1 03:27 pcmC0D1p
crw-rw----+ 1 root audio 116,  2 Sep  1 03:27 pcmC0D2c
crw-rw----+ 1 root audio 116,  9 Sep  1 03:27 pcmC1D3p
crw-rw----+ 1 root audio 116, 12 Sep  1 03:27 pcmC2D0c
crw-rw----+ 1 root audio 116,  1 Sep  1 03:27 seq
crw-rw----+ 1 root audio 116, 33 Sep  1 03:27 timer
--- End /dev/snd/ listing ---

-- System Information:
Debian Release: wheezy/sid
   APT prefers testing
   APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 3.0.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages alsa-base depends on:
ii  linux-sound-base           1.0.23+dfsg-4 base package for ALSA and OSS soun
ii  module-init-tools          3.16-1        tools for managing Linux kernel mo
ii  udev                       172-1         /dev/ and hotplug management daemo

Versions of packages alsa-base recommends:
ii  alsa-utils                    1.0.24.2-1 Utilities for configuring and usin

Versions of packages alsa-base suggests:
pn  alsa-oss<none>      (no description available)
pn  apmd<none>      (no description available)
pn  oss-compat<none>      (no description available)

Versions of packages libasound2 depends on:
ii  libc6                         2.13-16    Embedded GNU C Library: Shared lib
ii  multiarch-support             2.13-16    Transitional package to ensure mul

Versions of packages libasound2 suggests:
pn  libasound2-plugins<none>      (no description available)

-- Configuration Files:
/etc/modprobe.d/alsa-base.conf changed:
install sound-slot-0 /sbin/modprobe snd-card-0
install sound-slot-1 /sbin/modprobe snd-card-1
install sound-slot-2 /sbin/modprobe snd-card-2
install sound-slot-3 /sbin/modprobe snd-card-3
install sound-slot-4 /sbin/modprobe snd-card-4
install sound-slot-5 /sbin/modprobe snd-card-5
install sound-slot-6 /sbin/modprobe snd-card-6
install sound-slot-7 /sbin/modprobe snd-card-7
install snd /sbin/modprobe --ignore-install snd&&  { /sbin/modprobe --quiet snd-ioctl32 ; /sbin/modprobe --quiet snd-seq ; }
install snd-rawmidi /sbin/modprobe --ignore-install snd-rawmidi&&  { /sbin/modprobe --quiet snd-seq-midi ; : ; }
install snd-emu10k1 /sbin/modprobe --ignore-install snd-emu10k1&&  { /sbin/modprobe --quiet snd-emu10k1-synth ; : ; }
options bt87x index=-2
options cx88_alsa index=-2
options snd-atiixp-modem index=-2
options snd-intel8x0m index=-2
options snd-via82xx-modem index=-2
options snd-pcsp index=-2
options snd-usb-audio index=-2
options snd-hda-intel position_fix=2


-- no debconf information