I've spent days after days trying to fix this problem but to no avail. If a solution has already been mentioned, please kindly point me to it.
Thanks for your help in advance!
I've bought a Dell XPS 14 Ultrabook lately, which comes with a dual array of digital microphones integrated above the monitor. The microphone creates a frequent clipping noise (http://soundcloud.com/cliveso/test-mic-6/s-004T2). While my voice would be audible and intelligible, the noise is just extremely irritating. My sound card is 8086:1E20 and I think it's on ALC275.
Things I've tried:
Update everything the system suggests.
Install the latest Linux package from Realtek.
+ some other things which didn't help either.
There seems to be lots little tools on the internet to display various information about the system, but I don't know which to post. Please help!
System: Host: cliveso-XPS-L421X Kernel: 3.2.0-23-generic x86_64 (64 bit) Desktop: Gnome Distro: Linux Mint 13 Maya
Machine: System: Dell (portable) product: XPS L421X version: A04
Mobo: Dell model: 0T8078 version: A00 Bios: Dell version: A04 date: 06/26/2012
CPU: Dual core Intel Core i5-3317U CPU (-HT-MCP-) cache: 3072 KB flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx)
Clock Speeds: 1: 799.00 MHz 2: 799.00 MHz 3: 799.00 MHz 4: 799.00 MHz
Graphics: Card: Intel Ivy Bridge Graphics Controller
X.Org: 1.11.3 drivers: intel (unloaded: vesa,fbdev) Resolution: firstname.lastname@example.org
GLX Renderer: Mesa DRI Intel Ivybridge Mobile GLX Version: 2.1 Mesa 8.0.2
Audio: Card: Intel Panther Point High Definition Audio Controller driver: snd_hda_intel Sound: ALSA ver: 1.0.25-5.17rc5
Network: Card-1: Realtek RTL8111/8168B PCI Express Gigabit Ethernet controller driver: r8169
IF: eth0 state: down mac: d4:be:d9:3d:ff:98
Card-2: Intel Centrino Advanced-N 6235 driver: iwlwifi
IF: wlan0 state: up mac: c4:85:08:42:ce:9e
Drives: HDD Total Size: 532.1GB (27.8% used) 1: /dev/sda Hitachi_HTS54505 500.1GB
2: /dev/sdb SAMSUNG_SSD_PM83 32.0GB
Partition: ID: / size: 22G used: 5.4G (26%) fs: ext4 ID: /home size: 466G used: 133G (30%) fs: ext4
ID: swap-1 size: 8.49GB used: 0.00GB (0%) fs: swap
Sensors: Error: You do not have the sensors app installed.
Info: Processes: 167 Uptime: 2:21 Memory: 1170.1/7889.0MB Client: Shell inxi: 1.7.33