Audio process and apparatus
AssigneeSony Computer Entertainment Europe Limited
InventorBenjamin Fawcett
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Abstract
An audio apparatus is suitable for generating crowd sounds from an audio signal is disclosed in which the apparatus comprises modulation means operable to modulate a noise signal in response to the audio signal to generate a modulated noise signal, and diffusion delay means. The diffusion delay means is operable to apply a series of two or more delay operations, the input signal to a first such delay operation in the series being the modulated noise signal, and input to each subsequent delay operation in the series being the output signal generated by a preceding delay operation. Each delay operation comprises modifying that operation's input signal by the addition of a delayed version of that operation's input signal.
Claims26
An audio apparatus for generating crowd sounds from an audio signal, the apparatus comprising:
- a modulator operable to modulate a noise signal in response to the audio signal to generate a modulated noise signal;
- and
- a diffusion delay arrangement;
- in which:
- the diffusion delay arrangement is operable to apply a series of two or more delay operations, the input signal to a first such delay operation in the series being the modulated noise signal, input to each subsequent delay operation in the series being the output signal generated by a preceding delay operation;
- each delay operation comprising modifying that operation's input signal by the addition of a delayed version of that operation's input signal and outputting the result.
A method of audio processing for generating crowd sounds from an audio signal, the method comprising the steps of:
- modulating a noise signal in response to an audio signal to generate a modulated noise signal, and;
- applying a series of two or more delay operations, the input signal to a first such delay operation in the series being the modulated noise signal, and input to each subsequent delay operation in the series being the output signal generated by a preceding delay operation, and in which:
- each delay operation comprises modifying that operation's input signal by the addition of a delayed version of that operation's input signal and outputting the result.
Dependencies are inferred from the claim text.