Question / Help External Microphone -> No Input Signal

[zionsrevenge]

Hey folks,
First of all, I'd like to say that I'm impressed by the possibilities of OBS Studio and that all improvements to it have been great. But I do have a certain issue that is really annoying: I can't get my mic to work.

This is my setup:
- Windows 10 Pro
- OBS v18
- Audio Device: A&H Qu-16
- Mic: AKG C3000

My mixing desk is set to my sound card in windows. I setup the mic, which gives me a perfect signal (as usual). In windows audio manager I can see the metering for the input device (Qu-Line), so the signal gets through to the OS. Discord recognizes the mic and uses it. BUT when I select the Qu-Line input in OBS there is no signal at all. Stating the fact that Windows and Discord recognizing the signal I assume the problem lies somewhere inside OBS, imho. But I'm not sure, maybe I'm doing something wrong. Any ideas?

Best,

PS: forgot to check the log file, but I'm at work now

 

[zionsrevenge]

No one yet? Here is the log file (hopefully)

 

[zionsrevenge]

Update: 18.0.1 ==> still no signal
I installed OBS Classic to check it out, that one doesn't even get my desktop sound...
I used my USB Headset in OBS Studio ==> instantly there is a signal
But I like to use my professional mic. So I did it old school and used a real cable (XLR>3,5mm) to connect it to my onboard sound device. And there we go, signal in OBS!
I don't know why OBS needs it the analog way, while Windows and other applications can take the USB Signal, but at least it's working now. Analog technology can still save the day;)

 

[Suslik V]

from the log:

13:39:08.131: avresample_open failed: error code -22
13:39:08.131: creation of resampler failed

Windows, Recording devices, Properties, Advanced - what values of the Default format you have?

 

[zionsrevenge]

I can choose between 24ch, 24bit, 48000 hz and 24ch, 16bit, 48000 hz

 

[Suslik V]

Are you sure that this is "24ch" not the "2 channel, ..."?

 

[zionsrevenge]

Absolutely, and it's correct, the Qu-16 is a digital mixing desk with 24 input channels.

 

[Suslik V]

Probably it is too much...

 

[zionsrevenge]

Anyway, I use the analog work around for now, maybe in the future this will be possible.

 

[Suslik V]

...probably up to 7.1 channels supported. I'm not sure, maybe this part of code:

//////////  libobs/media-io/audio-resampler-ffmpeg.c
static inline uint64_t convert_speaker_layout(enum speaker_layout layout)
{
switch (layout) {
case SPEAKERS_UNKNOWN: return 0;
case SPEAKERS_MONO: return AV_CH_LAYOUT_MONO;
case SPEAKERS_STEREO: return AV_CH_LAYOUT_STEREO;
case SPEAKERS_2POINT1: return AV_CH_LAYOUT_2_1;
case SPEAKERS_QUAD: return AV_CH_LAYOUT_QUAD;
case SPEAKERS_4POINT1: return AV_CH_LAYOUT_4POINT1;
case SPEAKERS_5POINT1: return AV_CH_LAYOUT_5POINT1;
case SPEAKERS_5POINT1_SURROUND: return AV_CH_LAYOUT_5POINT1_BACK;
case SPEAKERS_7POINT1: return AV_CH_LAYOUT_7POINT1;
case SPEAKERS_7POINT1_SURROUND: return AV_CH_LAYOUT_7POINT1_WIDE_BACK;
case SPEAKERS_SURROUND: return AV_CH_LAYOUT_SURROUND;
}
/* shouldn't get here */
return 0;
}

So, no future.

 

[zionsrevenge]

That means, if a sound device can handle more than 8 channels, it won't be captured?

 

[Suslik V]

I think, yes.