[LINK] New device puts music in your head — no headphones required
kim.holburn at gmail.com
Sun Nov 15 12:37:19 AEDT 2020
On 2020/11/15 11:41 am, Karl Auer wrote:
> On Sun, 2020-11-15 at 11:04 +1100, jwhit at internode.on.net wrote:
>> The point about participating in a conference call is a bit sus. The
>> participant would still be talking. This is no different from someone
>> on a call and the rest of the open office getting only one side of
>> the conversation.
> Assuming the participant is using headphone. It does help with half the
That's an interesting point. Maybe it might eventually be possible to use this to do some kind of beamformed noise cancellation.
Shades of "the cone of silence".
>> HOWEVER - if this would work for people with hearing impairments, it
>> could be a huge breakthrough.
> It doesn't really generate sound in people's heads, that was the journo
> being lax. It just generates sound very close to the ear. I suppose if
> it can generate very loud localised sound it might be useful to the
> hard of hearing, but vibration is vibration, and if it's big it will be
> transferred to the surrounding air. Unless (and this is pure
> supposition) they actively suppress the generated vibration in the
> space round the focal point by e.g. generating equal and opposite sound
> (like noise cancelling headphones do).
It's beamforming so they create a bunch of beams of sound that converge at one or two points. (That's not a technical explanation.)
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