Record screen with earphones plugged in

When you record your gameplay with Quicktime Player, by default it is recording the sound of your microphone.

Your microphone is picking up all the sound around you - including the sound produced by your game, and the sound of your 2 year-old.

There are a few tricks you can do with audio on your mac that may help in achieving what you want.

I have just played a bit of QT movie while listening on my headphones, and captured the audio to a new audio recording, so it should work!

One other approach may be to use SoundFlower (which is free). With you install it get new sound input and output options that appear in System Preferences->Sound. Here is part of my Input options in System Preferences:

SoundFlower lets you connect the audio output of one program to the audio input of another.

So if your sound output is Soundflower (2ch) and your sound input is Soundflower (2ch), you can record. But... you won't hear anything!

In comes a little known program that lives in /Applications/Utilities: Audio MIDI Setup.

With it you create two "aggregate devices" - one output device to Soundflower and the built-in output simultaneously, and likewise for input.

Choose those options for your sound input and output and you can play your game with headphones and it will record.

So the problem of recording at night is solved.

It should not be too hard to figure out a way to solve problem number one along similar lines (hint: all you need is to choose a different INPUT option).

There are also some paid applications whose purpose is to digitally intercept the sound your mac produces and record it - two I remember are Audio Hijack and Wiretap Studio.

Hello People,

above does not help me. Task: record in-game sound with QT screen recording, while your headphones are plugged in.

I have created 2 aggregate devices: input - soundflower(2ch) + build-in mic; output - soundflower(2ch) + build-in output.

When I launch QT, i have mic options: nothing; external mic; soundflower(2ch); soundflower(64ch); and one of my aggregate devices: soundflower+input. None of those records in-game sound; second and last one record my voice, which is not a task...

Please advise which settings are done incorrectly.

Thanks in advance!

I did a little experiment here and it worked correctly.

In Audio MIDI Setup, I created one Multi-output device, with: built-in output+Soundflower(2ch)

In Quicktime Player, I created a New Audio Recording, and chose Soundflower(2ch) for its input:

I started to play a video and also spoke to the internal mic. The recording captured the video sound but not my voice, as expected.

I will try later with headphones/external mic (don't have them here at the moment) and see if that makes a difference.