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caseywatts/quicktime-hangouts-recording.md

Last active February 14, 2024 02:18
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Quicktime Hangouts Recording (using soundflower for audio)
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quicktime-hangouts-recording.md

Short link to this page: caseywatts.com/quicktime

Other gists & tricks: http://caseywatts.com/gists-and-tricks

Unrelated update: my book is out! Debugging Your Brain is an applied psychology / self-help book

Quicktime + Hangouts Recording

Scenario: You want to talk with someone over google hangouts (like for a user study), and you want to record BOTH:

  • the system output audio (from them)
  • the microphone audio (from you)

(screenshots below in a comment)

General Setup (do this once)

1 Install Soundflower

brew cask install soundflower

(if you don't have/use brew, then google soundflower and install it from their site~)

2 Make an aggregate device (for quicktime input)

This is for Quicktime to be able to record audio from both you and the other person.

  • open the OSX system app Audio Midi Setup
  • Create Aggregate Device
  • Include both inputs:
    • Built-in Microphone
    • Soundflower (2ch)
  • Name this one Dual Input for Quicktime (optional)

3 Make a multi-device output (for output)

This is so both you and quicktime (via the aggregate device^) can hear what's going on.

  • open the OSX system app Audio Midi Setup
  • Create Multi-Output Device
  • Include all both outputs:
    • Built-in Output
    • Soundflower (2ch)
  • Name this one Dual Output (optional)

Specific Setup (do this for each screen recording)

4 Choose system output

  • alt-click on the volume icon in the taskbar
  • choose your system
    • input = External Microphone (hangouts only needs one - quicktime will get both on its own)
    • Output = Dual Output (hangouts should output to both quicktime and your headphones)

5 Quicktime screen record

  • Open Quicktime Player
    • (you may need to close and re-open this after configuring inputs)
  • File -> New Screen Recording
  • In the dropdown next to the record button
    • Microphone = Dual Input for Quicktime
@transfabulation
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Wow. I have Soundflower installed on my Mac but never got to try this. I have been looking for a way to record two-way audio like this to no avail. Thank you so much for such clear and detailed guide. I set it up and it worked! Didn't know Soundflower is such an amazing tool. I confirm this works on Mac OS Sierra 10.12.6. The voice chat app I used is LINE, and I used earphones for my voice input.

I wonder if a similar tool/solution exists for Windows.

Again, I am so thrilled to have found this solution. Thank you for sharing your guide!

@moguelor
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Thank you!!! It works on my macbook pro with headphones.

@param0859
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I want to use microphone + system audio (playing audio file) into Google Hangout Microphone Input. I also want to record Google Hangouts audio output + system audio output (audio file) + microphone on QuickTime. I want to be able to hear the audio file and the Google Hangout output. How can I achieve this on a Mac using SoundFlower. Any suggestions?

@austospumanto
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Works with Skype on Mac (Mojave) as well (using "Default Device" for input and output) 👍

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