Dec 13, '07 07:30:07AM • Contributed by: jaymillz
- Open Garageband and create a new song.
- Delete the piano track that comes up automatically.
- Plug in a pair of headphones.
- Create a new track. Make it a vocal track. Make sure you choose "monitor on."
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Using your Apple laptop as a hearing aid/sound enhancer
Dec 13, '07 07:30:07AM • Contributed by: jaymillz
How to turn your Apple laptop with built-in microphone and GarageBand into a functioning hearing aid:
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Using your Apple laptop as a hearing aid/sound enhancer
Now, extending this, can you figure out a way for GarageBand to produce "anti-sound" in response to the ambient noise, so that all you hear is silence? That would be a very, very good trick.
Using your Apple laptop as a hearing aid/sound enhancer
I believe for this to work you would need a mic right next to each ear, then have your Mac invert the phase of the sound coming into each mic within as few samples as possible, then output the sound back to your headphones. In other words, I think your best bet would be to buy some noise canceling headphones =).
Using your Apple laptop as a hearing aid/sound enhancer
Oops, I guess I mean you'll need to keep your bulky Bose QCs on.
Using your Apple laptop as a hearing aid/sound enhancer
If GarageBand could invert the phase of incoming live audio, that'd do the trick, but it can't. ("anti-sound" is made by playing a sound that is identical to the source, but 180 degrees out of phase, creating destructive interference. Here's some more info, if anyone's interested)
Using your Apple laptop as a hearing aid/sound enhancer
Thanks! Great hint! Being slightly hearing impaired AND very sloppy with my hearing aid, I often forget to take it with me. I never forget my PowerBook or headphones...
Using your Apple laptop as a hearing aid/sound enhancer
Using your Apple laptop as a hearing aid/sound enhancer
Nice hint ... now if someone could make an iPod nano work this way, I'd be very happy. |
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