Fix illegal offset tempo and tempo_value

1.2.6

fix illegal offset value

replace (float) with floatval()

1.2.5

replace (float) with floatval()

1.2.4

Fixing delay issue due to atempo increase.

printing command before execution

1.2.3

Update MusicCombine.php

Fix tempo speed to be always greater than 1.0

1.2.2

Fix tempo speed to be always greater than 1.0

Solve: Undefined index playtime_seconds

1.2.1

solve: Undefined index playtime_seconds

Fixes atempo duration issue

Update MusicCombine.php

fixes tempo duration

Add script to exception message

Update MusicCombine.php

added script to exception message

Add use getID3; statement

add  use getID3;

add use statement

Add audio tempo

Increase the tempo as required