Dsp memory management for audio stream offloads
AssigneeAdvanced Micro Devices, Inc.
InventorsRavikumar Badam, Nagabhushana Rao Modalavalasa
Life of this patent
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Abstract
In order to conserve central processing unit (CPU) power during audio signal processing of ongoing audio streams, processing of the streams is offloaded to a digital signal processor (DSP) in some implementations. In some implementations, this offload includes storing data of the audio stream in DSP memory, where the DSP processes the audio stream data in the DSP memory. Different techniques for allocating DSP memory and/or storing audio stream data in the DSP memory have different advantages, such as power savings, in different implementations.
Claims20
A method for processing audio streams by a digital signal processor (DSP), the method comprising:
- allocating a first portion of DSP memory to store data of a first audio stream;
- and
- storing the data of the first audio stream in the first portion;
- wherein a size of the first portion of DSP memory is based on a number of streams offloaded to the DSP.
A digital signal processor (DSP) comprising:
- circuitry configured to allocate a first portion of DSP memory to store data of a first audio stream;
- and
- circuitry configured to store the data of the first audio stream in the first portion;
- wherein a size of the first portion of DSP memory is based on a number of streams offloaded to the DSP.
Dependencies are inferred from the claim text.