System and method for frequency domain audio speed up or slow down, while maintaining pitch
AssigneeBroadcom Corporation
InventorManoj Kumar Singhal
Life of this patent
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Abstract
Presented herein are system(s) and method(s) for frequency domain audio speed up or slow down, while maintaining pitch. An encoded audio signal is received. Frames from the encoded audio signal are retrieved. The frames of the audio signal are transformed into a frequency domain, wherein each of said frames are associated with a plurality of initial phases, and a corresponding plurality of ending phases. The initial phases of at least one of the frames are replaced with the ending phases of another frame.
Claims13
A method for changing the speed of an encoded audio signal, said method comprising:
- receiving the encoded audio signal;
- retrieving frames from the encoded audio signal;
- transforming the frames of the audio signal into a frequency domain, wherein each of said frames are associated with a plurality of initial phases, and a corresponding plurality of ending phases;
- and
- replacing the initial phases of at least one of the frames with the ending phases of another frame.
A machine-readable storage having stored thereon, a computer program having at least one code section that changes the speed of an encoded audio signal, the at least one code section being executable by a machine for causing the machine to perform operations comprising:
- receiving the encoded audio signal;
- retrieving frames from the encoded audio signal;
- transforming the frames of the audio signal into a frequency domain, wherein each of said frames are associated with a plurality of initial phases, and a corresponding plurality of ending phases;
- and
- replacing the initial phases of at least one of the frames with the ending phases of another frame.
A system that changes the speed of an encoded audio signal, the system comprising:
- a first circuit for receiving the encoded audio signal;
- a second circuit for retrieving frames from the encoded audio signal;
- a third circuit for transforming the frames of the audio signal into a frequency domain, wherein each of said frames are associated with a plurality of initial phases, and a corresponding plurality of ending phases;
- and
- a fourth circuit for replacing the initial phases of at least one of the frames with the ending phases of another frame.
Dependencies are inferred from the claim text.