Journal Forum

Clean Audio for TV broadcast: An Object-Based Approach for Hearing-Impaired Viewers - April 2015
1 comment

Audibility of a CD-Standard A/DA/A Loop Inserted into High-Resolution Audio Playback - September 2007

Sound Board: Food for Thought, Aesthetics in Orchestra Recording - April 2015

Access Journal Forum

AES Convention Papers Forum

Virtual Microphones: Using Ultrasonic Sound to Receive Audio Waves

A highly focussed ultrasound beam was sent through the room. At a distance of several meters the ultrasonic wave was received again with an ultrasonic microphone. The wave field of a common audio source was overlaid with the ultrasonic beam. It was found, that the phase shift of the received ultrasonic signal obtains the audio information of the overlaid field. So the ultrasonic beam itself acts as sound receiver, there is no technical device like membranes necessary at direct vicinity of sound reception. Because this kind of sound receiver is not visible or touchable we call it "Virtual Microphone".

AES Convention: Paper Number:
Publication Date:

Click to purchase paper or you can login as an AES member to see more options.

No AES members have commented on this paper yet.

Subscribe to this discussion

RSS Feed To be notified of new comments on this paper you can subscribe to this RSS feed. Forum users should login to see additional options.

Start a discussion!

If you would like to start a discussion about this paper and are an AES member then you can login here:

If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.

Facebook   Twitter   LinkedIn   Google+   YouTube   RSS News Feeds  
AES - Audio Engineering Society