Maximum db gain is too low for USB sound card

asked 2015-05-08 05:56:24 -0500

mklak gravatar image

Hi, I've bought a USB sound card for my Lenovo Z500 laptop because it has only duplex output. I am trying to get the microphone work through the USB sound card but when I open up my alsamixer I see that the range of db gain is moving only between -120 db and maximum -114 db so I basically can't get anything from my microphone. I tested microphone on other machine and it works.

Using Fedora 21.

Card hw:1 'Device'/'Generic USB PnP Sound Device at usb-0000:00:1a.0-1.1, full speed' Mixer name : 'USB Mixer' Components : 'USB1908:2070' Controls : 6 Simple ctrls : 2 Simple mixer control 'PCM',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: Mono Limits: Playback 0 - 255 Mono: Playback 255 [100%] [-127.00dB] [on] Simple mixer control 'Mic',0 Capabilities: cvolume cvolume-joined cswitch cswitch-joined Capture channels: Mono Limits: Capture 0 - 4 Mono: Capture 4 [100%] [-114.00dB] [on]

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