Time-scaling an audio signal
AssigneeNokia Corporation
InventorsAri Lakaniemi, Pasi Ojala
Life of this patent
Estimating the term…
Abstract
For time-scaling an audio signal that is distributed to a sequence of frames, frames of the sequence of frames are time scaled whenever needed, resulting in a sequence of variable sized frames. An audio signal in the sequence of variable sized frames is then re-divided into a sequence of equal sized frames for further processing.
Claims19
A method for time-scaling an audio signal, wherein said audio signal is distributed to a sequence of frames, said method comprising
- time-scaling frames of said sequence of frames whenever needed, resulting in a sequence of variable sized frames;
- and
- re-dividing an audio signal in said sequence of variable sized frames into a sequence of equal sized frames.
A chipset with at least one chip for time-scaling an audio signal that is distributed to a sequence of frames, said at least one chip comprising:
- a time scaling component adapted to time-scale frames of an input sequence of frames whenever needed, resulting in a sequence of variable sized frames;
- and
- a re-dividing component adapted to re-divide an audio signal in a sequence of variable sized frames provided by said time scaling component into a sequence of equal sized frames.
An audio receiver comprising a time scaling component and a re-dividing component for time-scaling an audio signal that is distributed to a sequence of frames,
- said time scaling component being adapted to time-scale frames of an input sequence of frames whenever needed, resulting in a sequence of variable sized frames;
- and
- said re-dividing component being adapted to re-divide an audio signal in a sequence of variable sized frames provided by said time scaling component into a sequence of equal sized frames.
An electronic device comprising a time scaling component and a re-dividing component for time-scaling an audio signal that is distributed to a sequence of frames,
- said time scaling component being adapted to time-scale frames of an input sequence of frames whenever needed, resulting in a sequence of variable sized frames;
- and
- said re-dividing component being adapted to re-divide an audio signal in a sequence of variable sized frames provided by said time scaling component into a sequence of equal sized frames.
A system comprising a transmission network adapted to transmit audio signals, a transmitter adapted to provide audio signals for transmission via said transmission network and a receiver adapted to receive audio signals via said transmission network, said receiver including a time scaling component and a re-dividing component for time-scaling an audio signal that is distributed to a sequence of frames,
- said time scaling component being adapted to time-scale frames of an input sequence of frames whenever needed, resulting in a sequence of variable sized frames;
- and
- said re-dividing component being adapted to re-divide an audio signal in a sequence of variable sized frames provided by said time scaling component into a sequence of equal sized frames.
A software program product in which a software code for time-scaling an audio signal is stored in a readable medium, wherein said audio signal is distributed to a sequence of frames, said software code realizing the following steps when being executed by a processor:
- time-scaling frames of said sequence of frames whenever needed, resulting in a sequence of variable sized frames;
- and
- re-dividing an audio signal in said sequence of variable sized frames into a sequence of equal sized frames.
Dependencies are inferred from the claim text.