Akai DD1500 User Manual page 209

UTILITIES - DSP FUNCTIONS - 20
In all cases, however you set the STRETCH AMOUNT parameter, whether it's entering a
value specifically in the STRETCH AMOUNT field or using STRETCH IN/OUT, when you
initiate the process using the EXECUTE key, you will see this progress display:
A highlighted bar will move across the screen to indicate progress. If you change your
mind during the process, press EXIT to abort the process.
At the end of the process, you will see this display:
If you complete the process, the processed version will replace the original. Use PLAY
IN>OUT to check the results. If you are not happy with the results, press UNDO to undo
the process. This will replace the processed version with the original and you may try
again.
Version 2.00 - March, 1996 Page 201