9
votes
Accepted
Can a single tympanal ear detect the direction or distance from which a sound comes?
The eardrum is a single sensor: The sound pressure which vibrates the eardrum propagates as a single signal in the hammer bone which is attached to the inner surface of the eardrum, i.e. there is no ...
- 4,161
5
votes
Can a single tympanal ear detect the direction or distance from which a sound comes?
Yes, to some extent. The shape of human ears filters sound differently depending on direction, see https://en.wikipedia.org/wiki/Head-related_transfer_function
5
votes
Can a single tympanal ear detect the direction or distance from which a sound comes?
The Cochlea that translates sound/vibrations into chemo-electrical (nerve) signals is only a single sensor and therefore directionality cannot be obtained by time-delay estimations.
However, the ear ...
- 7,620
4
votes
Accepted
Are there any (natural) ears that are sensitive to particle acceleration?
For the inner ears of fishes (otocysts), particle acceleration (rather than particle velocity) is considered the transduction stimulus for sound detection. One of many examples of measured particle ...
- 356
4
votes
How to incorporate audiogram functions into weighted sound exposure levels based on different hearing groups?
PAMGuard has a "Filtered Noise Measurement" module which can apply an arbitrary FIR filter to sound data prior to measuring the RMS and SEL outputs of that filter at selected time intervals. ...
- 2,091
3
votes
how far does the analogy between echolocation and vision go?
I would first like to address
There are obvious differences in that auditory organs (ears/jaw bones/etc) don't automatically encode location - localisation occurs through explicit computation from ...
- 7,620
3
votes
How to incorporate audiogram functions into weighted sound exposure levels based on different hearing groups?
To apply the frequency-specific audiogram weighting, you must calculate SEL in the spectral domain.
Parseval's theorem tells us that the sum of a square of a function is equal to the sum of the square ...
- 1,898
3
votes
Could some dinosaurs have outer ears (auricles/pinnae)?
This is a good question for a physiologist but much of our understanding of what external structures is based on 1) comparative physiology and 2) the bone structure underlying the muscle groups. As ...
- 767
2
votes
how far does the analogy between echolocation and vision go?
I agree with and like WMXZ's answer, and would like to include that unlike vision, the relatively slow speed of sound there is a significant difference in echolocation. If the echo-locating animal is ...
- 21
2
votes
Thoughts on the acoustic masking impacts of a high amplitude sound that does not overlap in frequency with a signal of interest?
You ask about masking and hearing damage due to masking.
Both happens at the receiver.
So, when you say: "both sources would be clearly visible", then masking would not have occured.
Now, ...
- 7,620
1
vote
Can a single tympanal ear detect the direction or distance from which a sound comes?
Sound Cues and Horizontal Plane Localization
There are different sound cues we naturally learn to be able to localize sound sources.
These cues may be related to the sound energy (amplitude) and to ...
- 41
1
vote
Can a single tympanal ear detect the direction or distance from which a sound comes?
The shape of the ear helps with broadband sounds.
If you have a cat you can see a similar effect by testing its ability to find the height of a sound source.
It can accurately find the source when ...
- 11
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