问题 I have a load of 3 hour MP3 files, and every ~15 minutes a distinct 1 second sound effect is played, which signals the beginning of a new chapter. Is it possible to identify each time this sound effect is played, so I can note the time offsets? The sound effect is similar every time, but because it's been encoded in a lossy file format, there will be a small amount of variation. The time offsets will be stored in the ID3 Chapter Frame MetaData. Example Source, where the sound effect plays