screenshot Macbook

Sorry for my rough Google translation from English: You would want to connected an audio input USB connector, or use an analog audio connector from output to input if avaialble.

Ci scusiamo per la mia traduzione approssimativa di Google dall'inglese: vorresti collegare un connettore USB di ingresso audio o utilizzare un connettore audio analogico dall'uscita all'ingresso, se disponibile.

Use the Audio Midi Setup in Applications -> Utilities to ensure the input and output are both digital. You may need to get an amplified input.

Utilizzare l'impostazione Audio Midi in Applicazioni -> Utilità per assicurarsi che l'ingresso e l'uscita siano entrambi digitali. Potrebbe essere necessario ottenere un ingresso amplificato.

that means it is using the built-in audio. It doesn't see your externally connected audio devices, and why the background audio is getting recorded.

Yes, but you have to use an external source for input of audio. Otherwise you will get background noise. You need a dedicated amplified microphone or amplified connection input to output.

Headphones only get ambient audio if they have a built-in microphone. You would literally have to have the microphone on top of the speaker and not allowed to move at all while near the speaker.

kekka-24 wrote:

Is there a way when i record screen with quickplayer(screenshot) to record only audio without external noise? for example if I want to record a music video I would like to hear only that and no external noises

to record the mac's internal sound with quicktime you need additional software. i use the free BlackHole Virtual Audio Driver. then you can choose "BlackHole 2ch" in the recording options instead of "Built-in Microphone."

you will also need to set up a multi-output device in your audio MIDI setup utility to be able to both hear and record the internal audio at the same time.

to set up a multi-output device:

Open Audio MIDI Setup: (found in /Applications/Utilities)

hit the '+' button in the bottom left corner and select "Create Multi Output Device"

then in the panel that appears on the right, in the Multi-Output Device tab, select "Built-in Output" AND "BlackHole 2ch". (and, if you want, any of your other connected devices.)

once you do that, (and BEFORE recording) you can choose "BlackHole 2ch" or "Multi-Output Device" in your menubar "sound options". 

to both hear the speakers and record the audio at the same time, choose "Multi-Output Device". before choosing multi-out, set the internal speakers' volume to a comfortable level first. you cannot control the volume once you are in multi-out mode.