说明：  多媒體通訊期末報告， AAC 的全名為 Advanced Audio Coding，其意為高階音訊編碼，是 國際標準組織 (ISO)訂的音訊標準格式，也是 MPEG 規格的一部分。取樣 頻率選擇性更高，更接近 CD 音質；並採用了分辨率更高的濾波器組，達
(Final report of multimedia communications, AAC' s full name is Advanced Audio Coding, it means high-end audio encoding, is the International Standards Organization (ISO) set the standard audio format, is also part of MPEG specifications. Higher sampling frequency selective closer to CD quality sound and adopted the higher resolution of the filter, up to)