Apparatus and method for controlling the dynamic compressor and method for determining amplification values for a dynamic compressor
AssigneeCarl Von Ossietzky Universitaet Oldenburg
InventorsDirk OETTING, Volker HOHMANN, Stephan D. EWERT, Jens Ekkehart APPELL
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Abstract
An apparatus for controlling a dynamic compressor of a hearing aid includes a combination signal analyzer for determining the binaural similarity of a left and right audio signal and an amplification adjuster for providing an amplification value for a band of the left or right audio signal in dependence on the binaural similarity and a level of the left or right audio signal in the band.
Claims15
Apparatus for controlling a first dynamic compressor in a first right hearing aid with a first amplification value and a second dynamic compressor in a second left hearing aid with a second amplification value, comprising:
- a combination signal analyzer for determining a binaural similarity between a right audio signal and a left audio signal;
- and
- an amplification adjuster for providing the first amplification value for the right audio signal in dependence on the binaural similarity and a level of the right audio signal and for providing the second amplification value for the left audio signal in dependence on the binaural similarity and a level of the left audio signal, wherein the amplification adjuster is configured to adjust the first amplification value for the first dynamic compressor and the second amplification value for the second dynamic compressor, at the same level and with high binaural similarity, to a respectively smaller value than in the case of low binaural similarity.
Method for controlling a first dynamic compressor in a first right hearing aid with a first amplification value and a second dynamic compressor in a second left hearing aid with a second amplification value, comprising:
- determining a binaural similarity between the right audio signal and the left audio signal;
- and
- providing a first amplification value for a band of the right audio signal in dependence on the binaural similarity and the level of the right audio signal in the band;
- and
- providing the second amplification value for the left audio signal in dependence on the binaural similarity and a level of the left audio signal, wherein the first amplification value for the first dynamic compressor and the second amplification value for the second dynamic compressor are adjusted, at the same level and with high binaural similarity, to a respectively smaller value than in the case of low binaural similarity.
Method for determining amplification values for a first dynamic processor and a second dynamic processor, comprising:
- adjusting the first dynamic compressor for a left channel and the second dynamic compressor for a right channel with a channel amplification function for monaural audio signals;
- determining a modified channel amplification function for the first dynamic compressor and the second dynamic compressor for binaural audio signals in the right channel and in the left channel;
- and
- applying the channel amplification function for monaural audio signals and applying the modified channel amplification function for binaural signals.
A non-transitory digital storage medium having a computer program stored thereon to perform the method for controlling a first dynamic compressor in a first right hearing aid with a first amplification value and a second dynamic compressor in a second left hearing aid with a second amplification value, the method comprising:
- determining a binaural similarity between the right audio signal and the left audio signal;
- and
- providing a first amplification value for a band of the right audio signal in dependence on the binaural similarity and the level of the right audio signal in the band;
- and
- providing the second amplification value for the left audio signal in dependence on the binaural similarity and a level of the left audio signal, wherein the first amplification value for the first dynamic compressor and the second amplification value for the second dynamic compressor are adjusted, at the same level and with high binaural similarity, to a respectively smaller value than in the case of low binaural similarity,
- when said computer program is run by a computer.
A non-transitory digital storage medium having a computer program stored thereon to perform the method for determining amplification values for a first dynamic processor and a second dynamic processor, the method comprising:
- adjusting the first dynamic compressor for a left channel and the second dynamic compressor for a right channel with a channel amplification function for monaural audio signals;
- determining a modified channel amplification function for the first dynamic compressor and the second dynamic compressor for binaural audio signals in the right channel and in the left channel;
- and
- applying the channel amplification function for monaural audio signals and applying the modified channel amplification function for binaural signals,
- when said computer program is run by a computer.
Dependencies are inferred from the claim text.