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How does noise-cancellation work in Mac laptops?
Disable volume control noise on mac book pro?Two Laptops Sitting on top of EachotherMetallic ticking noise from the MBPAudio doesn't work in OSX but the start-up chime doesHow does iGlasses work?MacBook Pro Retina rattling noiseMacbook Air headphone buzzing noiseIs this noise my trackpad making normal?How do the sleep sensors in latest Mac laptops work?Cracking/static noise related to fan on MacBook Pro 2017
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How does noise-cancellation work in Mac laptops?.
I understand how it works in Headphones or even in iPhone. But if the mics in a MacBook Air 2018, for example, are located in the same spot, what is being cancelled there? How can a plane motor or fan buzz be cancelled this way during a FaceTime call or similar?
This is set up in System Preferences > Audio "Use Ambient Noise Reduction"
Any resource explaining this?
Any help much welcome.
macbook audio hardware
edited yesterday
bmike♦
163k46297640
asked May 11 at 21:35
Antonio23249Antonio23249
516417
add a comment |
How does noise-cancellation work in Mac laptops?.
I understand how it works in Headphones or even in iPhone. But if the mics in a MacBook Air 2018, for example, are located in the same spot, what is being cancelled there? How can a plane motor or fan buzz be cancelled this way during a FaceTime call or similar?
This is set up in System Preferences > Audio "Use Ambient Noise Reduction"
Any resource explaining this?
Any help much welcome.
macbook audio hardware
edited yesterday
bmike♦
163k46297640
asked May 11 at 21:35
Antonio23249Antonio23249
516417
add a comment |
How does noise-cancellation work in Mac laptops?.
I understand how it works in Headphones or even in iPhone. But if the mics in a MacBook Air 2018, for example, are located in the same spot, what is being cancelled there? How can a plane motor or fan buzz be cancelled this way during a FaceTime call or similar?
This is set up in System Preferences > Audio "Use Ambient Noise Reduction"
Any resource explaining this?
Any help much welcome.
macbook audio hardware
edited yesterday
bmike♦
163k46297640
asked May 11 at 21:35
Antonio23249Antonio23249
516417
How does noise-cancellation work in Mac laptops?.
I understand how it works in Headphones or even in iPhone. But if the mics in a MacBook Air 2018, for example, are located in the same spot, what is being cancelled there? How can a plane motor or fan buzz be cancelled this way during a FaceTime call or similar?
This is set up in System Preferences > Audio "Use Ambient Noise Reduction"
Any resource explaining this?
Any help much welcome.
macbook audio hardware
macbook audio hardware
edited yesterday
bmike♦
163k46297640
asked May 11 at 21:35
Antonio23249Antonio23249
516417
edited yesterday
bmike♦
163k46297640
asked May 11 at 21:35
Antonio23249Antonio23249
516417
edited yesterday
bmike♦
163k46297640
edited yesterday
bmike♦
163k46297640
edited yesterday
bmike♦
163k46297640
163k46297640
asked May 11 at 21:35
Antonio23249Antonio23249
516417
asked May 11 at 21:35
Antonio23249Antonio23249
516417
asked May 11 at 21:35
Antonio23249Antonio23249
516417
516417
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
The microphones are not placed in the same spot exactly!
The 2018 MacBook Air actually has 3 microphones in a sort of triangle configuration. There are two microphones aligned on the right-hand side of the laptop under the speaker grille besides the Delete and | buttons (given a US keyboard). The third microphone is underneath the Delete button itself.
In addition to their placements, the three microphones also have different orientations. If you look from the top-down, the second microphone is rotated 180 degrees when compared to the first. The third microphone is rotated 90 degrees when compared to the first.
These different placements and orientations allows signal processing algorithms to seperate ambient noise from the desired signal (to a degree).
answered May 11 at 22:14
jksoegaardjksoegaard
21.9k12652
I suspect this feature largely filters out keyboard noise, though I can't test it for myself.
– Alexander
May 12 at 2:44
Yes, it is also designed to filter out keyboard noise - quite important given the placement of the microphones. However this question was about ambient noise reduction specifically.
– jksoegaard
May 12 at 8:32
add a comment |
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
The microphones are not placed in the same spot exactly!
The 2018 MacBook Air actually has 3 microphones in a sort of triangle configuration. There are two microphones aligned on the right-hand side of the laptop under the speaker grille besides the Delete and | buttons (given a US keyboard). The third microphone is underneath the Delete button itself.
In addition to their placements, the three microphones also have different orientations. If you look from the top-down, the second microphone is rotated 180 degrees when compared to the first. The third microphone is rotated 90 degrees when compared to the first.
These different placements and orientations allows signal processing algorithms to seperate ambient noise from the desired signal (to a degree).
answered May 11 at 22:14
jksoegaardjksoegaard
21.9k12652
I suspect this feature largely filters out keyboard noise, though I can't test it for myself.
– Alexander
May 12 at 2:44
Yes, it is also designed to filter out keyboard noise - quite important given the placement of the microphones. However this question was about ambient noise reduction specifically.
– jksoegaard
May 12 at 8:32
add a comment |
The microphones are not placed in the same spot exactly!
The 2018 MacBook Air actually has 3 microphones in a sort of triangle configuration. There are two microphones aligned on the right-hand side of the laptop under the speaker grille besides the Delete and | buttons (given a US keyboard). The third microphone is underneath the Delete button itself.
In addition to their placements, the three microphones also have different orientations. If you look from the top-down, the second microphone is rotated 180 degrees when compared to the first. The third microphone is rotated 90 degrees when compared to the first.
These different placements and orientations allows signal processing algorithms to seperate ambient noise from the desired signal (to a degree).
answered May 11 at 22:14
jksoegaardjksoegaard
21.9k12652
I suspect this feature largely filters out keyboard noise, though I can't test it for myself.
– Alexander
May 12 at 2:44
Yes, it is also designed to filter out keyboard noise - quite important given the placement of the microphones. However this question was about ambient noise reduction specifically.
– jksoegaard
May 12 at 8:32
add a comment |
The microphones are not placed in the same spot exactly!
The 2018 MacBook Air actually has 3 microphones in a sort of triangle configuration. There are two microphones aligned on the right-hand side of the laptop under the speaker grille besides the Delete and | buttons (given a US keyboard). The third microphone is underneath the Delete button itself.
In addition to their placements, the three microphones also have different orientations. If you look from the top-down, the second microphone is rotated 180 degrees when compared to the first. The third microphone is rotated 90 degrees when compared to the first.
These different placements and orientations allows signal processing algorithms to seperate ambient noise from the desired signal (to a degree).
answered May 11 at 22:14
jksoegaardjksoegaard
21.9k12652
The microphones are not placed in the same spot exactly!
The 2018 MacBook Air actually has 3 microphones in a sort of triangle configuration. There are two microphones aligned on the right-hand side of the laptop under the speaker grille besides the Delete and | buttons (given a US keyboard). The third microphone is underneath the Delete button itself.
In addition to their placements, the three microphones also have different orientations. If you look from the top-down, the second microphone is rotated 180 degrees when compared to the first. The third microphone is rotated 90 degrees when compared to the first.
These different placements and orientations allows signal processing algorithms to seperate ambient noise from the desired signal (to a degree).
answered May 11 at 22:14
jksoegaardjksoegaard
21.9k12652
answered May 11 at 22:14
jksoegaardjksoegaard
21.9k12652
answered May 11 at 22:14
jksoegaardjksoegaard
21.9k12652
answered May 11 at 22:14
jksoegaardjksoegaard
21.9k12652
21.9k12652
I suspect this feature largely filters out keyboard noise, though I can't test it for myself.
– Alexander
May 12 at 2:44
Yes, it is also designed to filter out keyboard noise - quite important given the placement of the microphones. However this question was about ambient noise reduction specifically.
– jksoegaard
May 12 at 8:32
add a comment |
I suspect this feature largely filters out keyboard noise, though I can't test it for myself.
– Alexander
May 12 at 2:44
Yes, it is also designed to filter out keyboard noise - quite important given the placement of the microphones. However this question was about ambient noise reduction specifically.
– jksoegaard
May 12 at 8:32
I suspect this feature largely filters out keyboard noise, though I can't test it for myself.
– Alexander
May 12 at 2:44
I suspect this feature largely filters out keyboard noise, though I can't test it for myself.
– Alexander
May 12 at 2:44
Yes, it is also designed to filter out keyboard noise - quite important given the placement of the microphones. However this question was about ambient noise reduction specifically.
– jksoegaard
May 12 at 8:32
Yes, it is also designed to filter out keyboard noise - quite important given the placement of the microphones. However this question was about ambient noise reduction specifically.
– jksoegaard
May 12 at 8:32
add a comment |
