How to separate inputs of UMC204HD on Linux Mint

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tddts
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How to separate inputs of UMC204HD on Linux Mint

Post by tddts »

Hello everyone.
Recently I got myself AT2020 mic and UMC204HD sound card for home studio.
I use latest Linux Mint and I got an issue with inputs. It only shows one input when there is actually two of them:
(Same happens on Windos when I'm unable to use ASIO.)
Image

In Audacity (one input with mono and stereo options):
pic1.png
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I installed Qjacktl in hope that it will allow me separate inputs, but it also shows only one single MIDI input.
pic2.png
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alsamixer actually shows two of them:
pic3.png
pic3.png (27.26 KiB) Viewed 153 times
What can I do to separate inputs? I would like to be able to record mic and guitar simultaneously, but separately.
Thanks in advance.
Kott
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Re: How to separate inputs of UMC204HD on Linux Mint

Post by Kott »

Hi,
Why you looking for audio ports in the Alsa/MIDI tab?
tddts
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Re: How to separate inputs of UMC204HD on Linux Mint

Post by tddts »

Kott wrote: Tue Jul 20, 2021 7:46 am Hi,
Why you looking for audio ports in the Alsa/MIDI tab?
Where should I look for them? I don't know much about how this stuff works.
Here is a "Audio" tab, there are 2 "capture" and 2 "playback" ports, but I'm not really sure about them.
pic4.png
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Here is also my settings in Qjackctl
Input device is named "UMC204HD 192k (hw:3)" in a menu. It's an only option that has sound card name in it.
pic5.png
pic5.png (69.39 KiB) Viewed 148 times
How can I get Iput 1 and Input 2 from sound card separately in Audacity?
Kott
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Re: How to separate inputs of UMC204HD on Linux Mint

Post by Kott »

these capture ports are inputs from your card, both are single-channel
if you use jack, then select jack from devices in audacity (if alsa - then select alsa), set stereo mode then add two mono audio tracks
each channel will be recorded in different track
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Re: How to separate inputs of UMC204HD on Linux Mint

Post by tddts »

Kott wrote: Tue Jul 20, 2021 9:59 am these capture ports are inputs from your card, both are single-channel
if you use jack, then select jack from devices in audacity (if alsa - then select alsa), set stereo mode then add two mono audio tracks
each channel will be recorded in different track
Is there any way I can record second channel as a separate mono track?
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Re: How to separate inputs of UMC204HD on Linux Mint

Post by Kott »

tddts wrote: Tue Jul 20, 2021 11:16 am
Kott wrote: Tue Jul 20, 2021 9:59 am these capture ports are inputs from your card, both are single-channel
if you use jack, then select jack from devices in audacity (if alsa - then select alsa), set stereo mode then add two mono audio tracks
each channel will be recorded in different track
Is there any way I can record second channel as a separate mono track?
that exactly what i mean

first track - first input (guitar)
second track - second input (bass)
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tddts
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Re: How to separate inputs of UMC204HD on Linux Mint

Post by tddts »

Kott wrote: Tue Jul 20, 2021 11:24 am
tddts wrote: Tue Jul 20, 2021 11:16 am
Kott wrote: Tue Jul 20, 2021 9:59 am these capture ports are inputs from your card, both are single-channel
if you use jack, then select jack from devices in audacity (if alsa - then select alsa), set stereo mode then add two mono audio tracks
each channel will be recorded in different track
Is there any way I can record second channel as a separate mono track?
that exactly what i mean

first track - first input (guitar)
second track - second input (bass)
Oh I see.
I read your previous post incorrectly and added stereo track.
Thank you very much.
It's weird that you cant select second input by itself though, but whatever.
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Re: How to separate inputs of UMC204HD on Linux Mint

Post by milo »

You also may consider upgrading to Ardour or some other DAW, where signal flow is more configurable. Audacity works, but can be maddeningly simplistic sometimes in things like this.
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