2. The method of claim 1 , wherein a plurality of candidate keywords, including the candidate keyword, are determined for the current frame of the audio frame sequence, and each candidate keyword is associated with at least one word option, and wherein a subset of the plurality of candidate keyword are determined to be included in the audio frame sequence together with their respective at least one word options based on the keyword determination criterion.
2. The method of claim 1 , wherein a plurality of candidate keywords, including the candidate keyword, are determined for the current frame of the audio frame sequence, and each candidate keyword is associated with at least one word option, and wherein a subset of the plurality of candidate keyword are determined to be included in the audio frame sequence together with their respective at least one word options based on the keyword determination criterion. 3. The method of claim 2 , wherein the subsequent frame is the last frame of the audio frame sequence, and in accordance with the keyword determination criterion, a candidate keyword that is associated with a preferred confidence score among is selected from the plurality of candidate keywords as a keyword associated with the current frame of the audio frame sequence.