Bug 209312 - sound recording on VIA VT1708S with snd_hda exhibits much noise
Summary: sound recording on VIA VT1708S with snd_hda exhibits much noise
Status: New
Alias: None
Product: Base System
Classification: Unclassified
Component: misc (show other bugs)
Version: 10.2-STABLE
Hardware: Any Any
: --- Affects Only Me
Assignee: freebsd-multimedia (Nobody)
Depends on:
Reported: 2016-05-06 02:54 UTC by gja822
Modified: 2016-05-06 11:13 UTC (History)
0 users

See Also:


Note You need to log in before you can comment on or make changes to this bug.
Description gja822 2016-05-06 02:54:27 UTC
I have ASUS M5A78L-M UB3 motherboard with integrated VIA VT1708S audio codec.

It works with snd_hda (with some tweaks in device.hints nids, currently I left only Rear Line-in/tried also as Microphone/ and Line-out as pcm2 and separately Front Headphones as pcm3; [pcm0 is Envy24 (M Audio Audiopile 2496) that is useless for recording audio also, and pcm1 is motherboard chipset's ATI RS690/780HDMI output, which I haven't opportunity to use]).

After mentioned small tweaks in device.hints, I can listen to sounds via the VIA's codec. But recording from microphone is almost useless. There's too much noise (with main harmonic at 8kHz), even sound is going _out_ of my dynamic microphone when I switch it on. I can flawlessly record on the same board with help of Windows OS [either from VIA-VT1708S or Envy27], but I found out no possibility to do that from FreeBSD.

uname: FreeBSD 10.3-STABLE #0 r298933M
(but the same was for all previously used builds of 10)