Audio codec with audio buffer to store decoded audio data wherein decoding processor enters low power mode during playback

摘要

Systems, methods, and other embodiments associated with a low power audio codec are described. According to one embodiment, an audio codec includes an audio buffer configured to store decoded audio data received from an application processor external to the audio codec. The application processor is configured to decode audio data in a RUN mode. The audio codec is configured to store, in the audio buffer, decoded audio data received from the application processor when the application processor is in IDLE mode and provide the stored decoded audio data to an audio device while the application processor is in a low power mode.

主权项

1. An audio codec apparatus, comprising:
an audio codec comprising
an audio buffer configured to store decoded audio data received from an application processor external to the audio codec, wherein the application processor is configured to decode audio data in a RUN mode, wherein the audio codec is configured to play the decoded audio data without performing decoding operations on the decoded audio data; andwherein the audio codec is configured to:
store, in the audio buffer, decoded audio data received from the application processor when the application processor is in IDLE mode; andprovide the stored decoded audio data to an audio device while the application processor is in a low power mode such that the application processor is not decoding audio data and the application processor is not transmitting audio data to the audio codec; andfurther wherein the application processor consumes less power in low power mode than in IDLE mode and less power in IDLE mode than RUN mode.