| 摘要 |
PROBLEM TO BE SOLVED: To exactly identify and process L and R channels by adding identifiers to identify either even sectors or odd sectors to the sectors to be stored and storing these sectors in accordance with the results of discrimination as to whether the stored sectors are the even sectors or the odd sectors. SOLUTION: A memory controller 12 outputs a channel identification signal in order to enable an encoder/decoder section 14 to identify that a sound frame of the two sectors is L channel data at a ratio of once per two sector. For example, the controller emits the channel identification signal at the output timing of the top sound frame of the even sector and has this signal recognized with the L channel by the encoder/decoder section 14. At this time, this identification signal is not outputted in the odd sector. Then, the sound frame is known to be the sound frame of the L channel data captured at the time the identification signal is supplied in the decoder section 14 and thereafter, the processing is successively executed as the R, L and R channels by every sound frame to be captured thereafter and, therefore, the erroneous processing of L as R does not occur. |
