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FS#5071 - Noise reduction in a train or plane by using built in mic

Attached to Project: Rockbox
Opened by Anonymous Submitter - Saturday, 08 April 2006, 19:37 GMT+2
Task Type Feature Requests
Category Music playback
Status Closed
Assigned To No-one
Player Type Iriver H100 series
Severity Low
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Private No

Details

Hello, I was wodering if it is possible to use the built in mic of the player to reduce noise like done by some sony or bose headphones. (e.g. http://www.bose.com/controller?event=VIEW_PRODUCT_PAGE_EVENT&product=qc2_headphones_index )
Simson Garfinkel, Technologyreview.com
"It’s as if someone behind your back reached out, found the volume control of the world, and turned it way, way, down."
This might be working with other Players too (I just don't know which ones have sound capability)

Cheers Robbo
This task depends upon

Closed by  Björn Stenberg (zagor)
Thursday, 21 September 2006, 01:00 GMT+2
Reason for closing:  Duplicate
Additional comments about closing:  Closing all feature requests.
Comment by no name jones (rockkybox) - Saturday, 08 April 2006, 21:32 GMT+2
Well I know that headphones like this have 2 microphones, one on each earpiece, this is how they manage to cancel sound out properly. It might work abit though, just no way will it feel like someone has turned down the volume control of the world ;)
Comment by Rani Hod (RaeNye) - Sunday, 23 April 2006, 17:13 GMT+2
The important question is whether you can concurrently record and play digital audio.
Sadly, I suspect the CPU support only one of these in the same time :(

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