Note: This article refers to the BOSS MICRO BR® Digital Recorder that was released in 2006. If you're looking for information on the 2011 MICRO BR® BR-80 Digital Recorder, please click this link:
MICRO BR® BR-80.

The MICRO BR's Time Stretch function allows you to change the playback speed of an audio file in MP3 TRAINER mode. This is useful for practicing different parts of a song. The following instructions will guide you through changing the playback speed of a file.

1. Press the MP3 TRAINER button until "MP3" appears on the bottom left of the screen.
2. Use the CURSOR buttons to move the cursor icon to the file number.
3. Use the VALUE (+ & -) buttons to select an audio file that you would like to play.
4. Use the CURSOR buttons to select "100%" on the bottom right of the screen.
5. Use the VALUE (+ & -) buttons to change the speed of the audio file.