1. An apparatus comprising: a coder/decoder (CODEC) including a first processor and a first buffer, wherein the first processor is configured to analyze audio data samples to detect a keyword and the CODEC is configured to store a set of audio data samples at the first buffer; and an application processor configured to receive the set of audio data samples from the CODEC via a bus, wherein the application processor is configured to initialize a speech recognition engine (SRE) based on the set of audio data samples, and wherein the application processor is further configured to initialize the bus based on an indication from the CODEC that the keyword is detected.
1. An apparatus comprising: a coder/decoder (CODEC) including a first processor and a first buffer, wherein the first processor is configured to analyze audio data samples to detect a keyword and the CODEC is configured to store a set of audio data samples at the first buffer; and an application processor configured to receive the set of audio data samples from the CODEC via a bus, wherein the application processor is configured to initialize a speech recognition engine (SRE) based on the set of audio data samples, and wherein the application processor is further configured to initialize the bus based on an indication from the CODEC that the keyword is detected. 12. The apparatus of claim 1 , further comprising: an audio transducer configured to receive acoustic signals and generate the audio data samples based on the acoustic signals; an audio detector configured to determine whether a particular audio data sample from the audio transducer satisfies a threshold; and a plurality of buffers configured such that, when one of the buffers is in a receive mode, another of the buffers is in a send mode, wherein, when in the receive mode, one of the plurality of buffers is configured to receive the particular audio data sample that satisfies the threshold, and when in the send mode, the one of the plurality of buffers is configured to provide the particular audio data sample to the first processor.