Digital aerophones and dynamic impulse response systems
AssigneeVladimir Vassilev
InventorVladimir Vassilev
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Abstract
Method and apparatus for playing existing aerophone musical instruments e.g. bagpipe or constructing new instruments or more general human interaction devices by continuous estimation of the impulse response of the acoustic system of the instrument with the use of probing signal. In the proposed apparatus this is done by means of transducers introducing probing signal and capturing and analyzing the signal resulting from the interaction between the probing signal, the instrument and the player. In contrast to the normal way aerophone instruments are used where a player blows air and stimulates vibration of air this method does not require the player to blow, the generated probing signal can be outside of the audiable sound range and the output of the instrument can be outputted as digital data.
Claims3
A method for determining the dynamic impulse response of an aerophone, the method comprising:
- determining an approximation of an impulse response of one or more acoustic channels within the aerophone,
- selecting a closest match of the approximation of a current impulse response to a set of predefined or prerecorded impulse responses, and
- generating an output signal based on the selection, wherein the output signal is created without airflow and without generating acoustic output directly from the instrument.
An apparatus for generating an output signal corresponding to the dynamic state of an aerophone comprising:
- a means for determining an approximation of an impulse response of one or more acoustic channels within the aerophone,
- a means for selecting a closest match of the approximation of a current impulse response to a set of predefined or prerecorded impulse responses, and
- a means for generating an output signal based on the selection, wherein the output signal is created without airflow and without generating acoustic output directly from the instrument.
Dependencies are inferred from the claim text.