Quicktime records no sound in ‘record movie‘

thanks for the translation. :)

everything in your screenshots appear to be in place properly. i'm thinking you likely already know this, but are you selecting Multi-Output device in the menubar's sound options prior to starting the recording?

also, did you set the volume to an appropriate level BEFORE choosing Multi-out?

if it's being used that way, it should be working. are you just not hearing the sound while recording, or upon testing the recording is the audio not there?

i have noticed that soundflower is still installed. i'm not sure if that is causing an issue with black hole working. maybe try uninstalling soundflower:

From the Finder, HIT Shift-Cmd-G and TYPE:

/Library/Extensions

Then inside that folder, look for a "Soundflower.kext" file. If there is one, DRAG it into the trash (you may be asked for the admin password)

REPEAT The Above Steps, typing in this folder path:

/System/Library/Extensions

Then OPEN THE TERMINAL APP (found in /Applications/Utilities/)

Type this line, entering your password when asked.

sudo touch /Library/Extensions/

RESTART your computer

KarlPfeifferHarbachoed wrote:

In the recording-Menu of QuickTime Player is no Multi-out-channel; may be quit clear to you.

in QT's recording options you won't see Multi-out. you have blackhole selected as the microphone. that is the correct selection. it's the sound options in the menubar at the top of the screen (left of the clock) where you choose multi-out. click the speaker in the menubar and in the dropdown select your multi-out. (as seen below)

if you have internal speakers selected, you WILL hear the thing you are recording, but it will not be recording the sound. when you select multi out, the sound comes from your speakers AND also gets routed to blackhole in the QT recordings.

i see you're still using soundflower. in the past i've used it quite successfully. however, apple has said that they are bringing kernel extensions to end of life. i'm not entirely sure that applies to catalina, but maybe that's the case. i gave up on soundflower before that happened. i now use the free BlackHole Virtual Audio Driver. you may want to give it a try.