Method and device for automated harmonization of digital audio signals
OwnerMartin SPINDLER, Matthias LIPPMANN +1inventors
InventorsMartin SPINDLER, Matthias LIPPMANN, Johannes PECKMANN
Life of this patent
Estimating the term…
Abstract
The invention discloses a method and a device for automated harmonization of digital audio signals with a target frequency, wherein the digital audio signal is pitch-shifted. In one embodiment of the invention the target frequency is the frequency of a tinnitus sound. Therefore, the method according to the invention is usable in the context of tinnitus treatment.
Claims17
A method for automated harmonization of digital audio signals or control data sequences for synthesizing digital audio signals with a target frequency, wherein the digital audio signal or the control data sequence for synthesizing digital audio signal is pitch-shifted, comprising the steps
- providing a target frequency;
- providing a digital audio signal or a control data sequence for synthesizing a digital audio sign;
- determining the main frequency components of the digital audio signal by analyzing the digital audio signal or determining the main frequency components of a control data sequence by analyzing the control data sequence;
- summarizing the main frequency components to tone classes;
- calculating a frequency ratio to the target frequency for each tone class;
- calculating a weighting factor or a significance value for each tone class;
- selecting the frequency ratio of the tone class with the highest weighing factor or the highest significance factor;
- pitch-shifting of the digital audio signal or the control data sequence for synthesizing a digital audio signal by the selected frequency ratio;
- store and/or play and/or export of the pitch-shifted digital audio signal or the pitch-shifted control data sequence for synthesizing a digital audio signal.
A device for performing the method according to the invention, characterized in that the device comprises:
- a data processing device operably associated with;
- a data storage device;
- at least one input interface;
- and
- at least one output interface.
Dependencies are inferred from the claim text.