Tracking device for variable position sound sources in a space ensonification system with delay devices

Abstract

Abstract The invention relates to a tracking device for variable position sound sources in a space ensonification system with delay devices, in which the sound sources are acoustically located on the basis of position-specific time delays of the acoustic signal. In this case, an RF transmitter with a different transmission frequency is provided for each variable-position sound source (S1...Sn), whose emitted RF signal is received by at least three RF receivers 1, 2, 3, which are arranged in a distributed manner in the space, with the location of the moving sound source being determined on the basis of an arbitrarily chosen geometrical association by counting the maxima and/or minima and/or sudden phase changes in the sum or difference signal of two associated measurement paths for the two-dimensional case or of three associated measurement paths for the three- dimensional case, in order, from this, to automatically readjust the position-dependent delay times on the delay devices, and with the RF transmitter which is associated with each variable position sound source at the same time being the transmitter of a transmitter microphone. <IMAGE>

Inventors

• 👤 Werner Dipl Ing Fidi
• 👤 Hannes Lehdorfer

Bibliographic Details