Davinci Resolve - No Mic Audio

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1

I just moved my computer from Leap 15.6 to Tumbleweed. I have Davinci Resolve (studio)installed and it works. (Followed this guide) BUT now I tried to do a voice over and the Mic does not work. Mic works when testing in Volume Control. What is the best approach for fixing this? Or is this a Tumbleweed issue, I have looked around and I have seen several comments that Mics do not work. I have a USB Condensing Mic. BTW I can record in Audacity without issues, so I know this is a Davinci Resolve issue.

Any help would be appreciated.

2

To start with show us the current working audio stack details…
inxi -Aa

3

The Device i want to work is Device-4

Audio:
  Device-1: Intel 200 Series PCH HD Audio vendor: Dell driver: snd_hda_intel
    v: kernel alternate: snd_soc_avs bus-ID: 00:1f.3 chip-ID: 8086:a2f0
    class-ID: 0403
  Device-2: NVIDIA GP104 High Definition Audio vendor: Dell
    driver: snd_hda_intel v: kernel pcie: gen: 3 speed: 8 GT/s lanes: 16
    bus-ID: 01:00.1 chip-ID: 10de:10f0 class-ID: 0403
  Device-3: Generalplus USB Audio Device
    driver: hid-generic,snd-usb-audio,usbhid type: USB rev: 1.1 speed: 12 Mb/s
    lanes: 1 mode: 1.1 bus-ID: 1-12.3:11 chip-ID: 1b3f:2008 class-ID: 0300
  Device-4: DCMT USB Condenser Microphone
    driver: hid-generic,snd-usb-audio,usbhid type: USB rev: 1.1 speed: 12 Mb/s
    lanes: 1 mode: 1.1 bus-ID: 1-6.1:6 chip-ID: 31b2:0011 class-ID: 0300
    serial: 214b206000000178
  API: ALSA v: k6.14.1-1-default status: kernel-api with: 1: aoss
    type: oss-emulator 2: apulse type: pulse-emulator
    tools: alsactl,alsamixer,amixer
  Server-1: JACK v: 1.9.22 status: off tools: jack_control
  Server-2: PipeWire v: 1.4.2 status: active with: 1: pipewire-pulse
    status: active 2: wireplumber status: active 3: pipewire-alsa type: plugin
    4: pw-jack type: plugin tools: pactl,pw-cat,pw-cli,wpctl

Thank you

4

I’m not familiar with Davinci Resolve, but I see advice online about checking that Preferences > Video and Audio I/O is configured correctly with respect to the desired input device. I assume that this checks out ok?

FWIW, a quick search online turned up this archlinux thread which had the following observations:

Found solution.
Davinci has only support for alsa, pipewire-alsa for some reason doesnt work with recordings https://gitlab.freedesktop.org/pipewire … ssues/2870.
moving to pulseaudio with pulseaudio-alsa does record but with intense crackles and echo.
pipewire with pipewire-pulse and pulseaudio-alsa works good.
if crackles still in place but without echo change record buffer size to a higher number in davinci preferences(probably because of an old cpu)

5

I did the same search, adding the following lines to a file in /etc/ all audio in Davinci Resolve stopped working, and ended up crashing DR, I delete the file, reboot and back to normal. (still no ALSA mic)

pcm.!default pulse
ctl.!default pulse

I still dont know what I did on Leap / or just dumb luck on Leap for this to work…

6

Were you using PulseAudio back then perhaps?

7

Just in case this is helpful…
https://forum.blackmagicdesign.com/viewtopic.php?f=21&t=183153

If not, consider posting about your issue in the Blackmagic Forum perhaps.

8

I am not sure, what ever the default was on the system. I tried Pulse Audio in Tumbleweed. I removed that as it broke my recording - Low Audio and such.

9

If i post in Black Magic the response will be “Switch to Red Hat and we will support you” yes I tried that. I can see all inputs into DR and everything looks good, except for the sound…none of it…

Thank you for the Forum post, I have followed that link, I do need to look into this more. I will most likely see if 20 will fix the issue, I doubt it though.

10

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