Processing audio signals

Claim 1

A method of creating the effect of a sound source moving in space, by supplying respective sound output signals to a plurality of fixed loudspeaker channels, comprising: recording originating sound signals onto a replayable track in digitized form wherein said sound signals are recorded as digital samples and are replayable at an appropriate sample rate; defining movement of a sound source with respect to specified points, each of which defines the position of said sound source at a specified time; calculating gain values for each originating sound track for each of said respective sound output signals and for each of said specified points; interpolating calculated gain values to produce gain values for each loudspeaker channel at said sample rate; and displaying the position of said sound source, a notional listening position and the movement path of said sound source over time.

Claim 2

A method of creating the effect of a sound source moving in space, by supplying respective sound output signals to a plurality of fixed loudspeaker channels, comprising: recording originating sound signals onto a replayable track in digitized form wherein said sound signals are recorded as digital samples and are replayable at an appropriate sample rate; defining movement of a sound source with respect to specified points, each of which defines the position of said sound source at a specified time; calculating gain values for each originating sound track for each of said respective sound output signals and for each of said specified points; interpolating calculated gain values to produce gain values for each loudspeaker channel at said sample rate; and displaying the position of said sound source, a notional listening position and the movement path of said sound source over time.

Claim 21

A method for creating the effect of a sound source moving in space, by supplying respective sound output signals to a plurality of fixed loud speaker channels, comprising steps of: recording originating sound signals onto a replayable track in digitized form, wherein said sound signals are recorded as digital samples and subsequently replayed at a sample rate; displaying the position of said sound source and a notional listening position; defining movement of a sound source with respect to specified points, each of said points defining the position of said sound source at a specified time; displaying said movement of said sound source over time; calculating gain values for each originating sound track, for each of said respective sound output signals and for each of said specified points; and interpolating gain values to produce gain values for each loudspeaker channel at a predetermined sample rate.

Claim 22

A method for creating the effect of a sound source moving in space, by supplying respective sound output signals to a plurality of fixed loud speaker channels, comprising steps of: recording originating sound signals onto a replayable track in digitized form, wherein said sound signals are recorded as digital samples and subsequently replayed at a sample rate; displaying the position of said sound source and a notional listening position; defining movement of a sound source with respect to specified points, each of said points defining the position of said sound source at a specified time; displaying said movement of said sound source over time; calculating gain values for each originating sound track, for each of said respective sound output signals and for each of said specified points; and interpolating gain values to produce gain values for each loudspeaker channel at a predetermined sample rate.

Claim 23

A method of creating the effect of a sound source moving in space, by supplying respective sound output signals to a plurality of fixed loudspeaker channels, comprising: recording originating sound signals onto a replayable track in digitized form wherein said sound signals are recorded as digital samples and are replayable at an appropriate sample rate; defining movement of a sound source with respect to specified points, each of which defines the position of said sound source at a specified time; calculating gain values for each originating sound track for each of said respective sound output signals and for each of said specified points, wherein for each specified point, gain values are calculated for each loudspeaker channel with reference to the cosine of an angle between the position of a respective loudspeaker and the position of the sound source, with respect to a notional listening position; interpolating calculated gain values to produce gain values for each loudspeaker channel at said sample rate; and displaying the position of said sound source, said notional listening position and the movement path of said sound source over time.

Claim 24

A method of creating the effect of a sound source moving in space, by supplying respective sound output signals to a plurality of fixed loudspeaker channels, comprising: recording originating sound signals onto a replayable track in digitized form wherein said sound signals are recorded as digital samples and are replayable at an appropriate sample rate; defining movement of a sound source with respect to specified points, each of which defines the position of said sound source at a specified time; calculating gain values for each originating sound track for each of said respective sound output signals and for each of said specified points, wherein for each specified point, gain values are calculated for each loudspeaker channel with reference to the cosine of an angle between the position of a respective loudspeaker and the position of the sound source, with respect to a notional listening position; interpolating calculated gain values to produce gain values for each loudspeaker channel at said sample rate; and displaying the position of said sound source, said notional listening position and the movement path of said sound source over time.

Claim 26

A method of creating the effect of a sound source moving in space, by supplying respective sound output signals to a plurality of fixed loudspeaker channels, comprising: recording originating sound signals onto a replayable track in digitized form wherein said sound signals are recorded as digital samples and are replayable at an appropriate sample rate; defining movement of a sound source with respect to specified points, each of which defines the position of said sound source at a specified time; calculating gain values for each originating sound track for each of said respective sound output signals and for each of said specified points; interpolating calculated gain values to produce gain values for each loudspeaker channel at said sample rate, wherein the calculation of interpolated gain values is multiplexed so as to generate gain values for thirty-eight recorded audio tracks; and displaying the position of said sound source, a notional listening position and the movement path of said sound source over time.

Claim 27

A method of creating the effect of a sound source moving in space, by supplying respective sound output signals to a plurality of fixed loudspeaker channels, comprising: recording originating sound signals onto a replayable track in digitized form wherein said sound signals are recorded as digital samples and are replayable at an appropriate sample rate; defining movement of a sound source with respect to specified points, each of which defines the position of said sound source at a specified time; calculating gain values for each originating sound track for each of said respective sound output signals and for each of said specified points; interpolating calculated gain values to produce gain values for each loudspeaker channel at said sample rate, wherein the calculation of interpolated gain values is multiplexed so as to generate gain values for thirty-eight recorded audio tracks; and displaying the position of said sound source, a notional listening position and the movement path of said sound source over time.