Audacity not recognising input 3 or 4

[brownlow]

Hi there, Hoping someone can help with the following issue.

Currently running windows 10 and have a Behringer U-Phoria UMC404HD interface.

I'm trying to run three microphones, however audacity only picks up the first two inputs and cannot record the third. Ideally they would be on separate channels but don't need to be.

Windows has access to the third microphone - it can detect sound coming in from all four inputs.

audacity has fully privacy access to microphones. Drivers seem all up to date.

It's not the microphones, they work in other inputs.

I've tried changing Preferences > Devices > Host: to Windows WASAPi then recording to 4 channels. It returns the following error, regardless of how many channels I select "Error opening recording device. Error code: -9997 Invalid sample rate.

Any suggestions I could try would be greatly appreciated. tyia

[steve]

Error code: -9997 Invalid sample rate.

Check that the sample rate for the device in the Windows Sound control panel, is the same for both recording and playback, and the same as the "Project Rate" in Audacity (bottom left corner of the main Audacity window).

[roadsterUK]

Its possible that when you use more input channels there is a restriction on the maximum sample rate available. Try setting your default sample rate to something lower such as 44.1 KHz.

[brownlow]

Thanks for suggestions. Still no luck.

Recording and Playback windows settings were different (mic was 48k, speakers 44.1k), adjusted them to the same and still no luck.

My default project rate was 44.1K. Lowering that unfortunately made no difference.

[brownlow]

Bump. Any other ideas. Anyone?

[steve]

Create a "Audio Device Info" file (see: https://manual.audacityteam.org/man/hel ... evice_info)
and attach it to your reply (see: viewtopic.php?f=49&t=64936)

[roadsterUK]

As I have said in answer to so many posts you should run mmsys.cpl and look at the tab which shows recording devices. Any device which is listed as plugged in and enabled should be selectable as an Audacity input device. If this is not so please post a screen snapshot of the sound recording devices window overlaid on the Audacity drop down. For example:-

Image1.jpg (212.71 KiB) Viewed 882 times

In this dull example the top three items are just loopback of outputs, line in and stereo mix don't list because they are respectively not plugged in and disabled.

[brownlow]

Create a "Audio Device Info" file (see: https://manual.audacityteam.org/man/hel ... evice_info)
and attach it to your reply (see: viewtopic.php?f=49&t=64936)

Here is the audio device info file

deviceinfo.txt

(15.64 KiB) Downloaded 31 times

[brownlow]

As I have said in answer to so many posts you should run mmsys.cpl and look at the tab which shows recording devices. Any device which is listed as plugged in and enabled should be selectable as an Audacity input device. If this is not so please post a screen snapshot of the sound recording devices window overlaid on the Audacity drop down. For example:-
Image1.jpg
In this dull example the top three items are just loopback of outputs, line in and stereo mix don't list because they are respectively not plugged in and disabled.

I haven't got any problems there. My UMC404HD is selectable, which has all three mics running through it. In that recording windows tab the third mic is detected (the little green bars rise). However the third mic doesn't work in audacity.

[steve]

Here is the audio device info filedeviceinfo.txt

According to that, "device: 42 - Microphone (UMC404HD 192k)", which was selected in Audacity at the time that you printed that device info, is capable of recording 4 channels. It is the only option that is capable of recording 4 inputs (the "loopback" devices are "virtual devices" rather than physical devices).
Unfortunately the device does not say what sample rates are supported for 4 channels, or any other requirement for 4 channels.

==============================
Device ID: 42
Device name: Microphone (UMC404HD 192k)
Host name: Windows WASAPI
Recording channels: 4
Playback channels: 0
Low Recording Latency: 0.003
Low Playback Latency: 0
High Recording Latency: 0.01
High Playback Latency: 0
Supported Rates:
==============================
Selected recording device: 42 - Microphone (UMC404HD 192k)
Selected playback device: 6 - Speakers (Realtek High Definiti
Supported Rates:

Recording and Playback windows settings were different (mic was 48k, speakers 44.1k), adjusted them to the same and still no luck.

What are the sampling rates, in the "Windows Sound control pane" set at for the
UMC404HD recording device,
UMC404HD playback device
and
Realtek High Definition playback device?