The present invention relates to an audio encoding apparatus.
An audio encoding method that enables fast-forward play when reproducing data encoded by an MPEG (Moving Picture Expert Group) Audio Layer 3 (hereinafter referred to as MP3) method has heretofore been known.
For example, Patent Document 1 (Japanese Published Unexamined Patent Application No. 2006-190362) discloses an audio encoding method that quickly acquires information indicating a current play position and shortens a transition time from a normal play to a fast-forward or fast-backward play, and thus can avoid that a listener feels a temporary delay or stop in reproduction.
In this audio encoding method, an auxiliary data appender appends auxiliary data of 32×5 bits which are all defaulted to “0” to audio encoded data. An LBA writer overwrites a first 32-bit part of the auxiliary data with a value of LBA which is given by an LB counter. Further, a jump to position LBA writer overwrites the remaining parts of 32×4 bits with LBA_f4, LBA_f8, LBA_b4, and LBA_b8 to jump to which are given by the LB counter.