1. I use this app so much that my car speakers have died.. yes; when you play the same narrow bandwidth and the same volume for extended periods of time; it kills your speakers.. But not the apps fault! Sometimes the widget control on android doesn't work; but all that is minor; this is a great app for anybody who drives for long periods of time or has long commutes.
2. I've been able to listen at up to 2.5x without any difficulty in making out the words, when the quality of the recording was ok.opus audio files aren't showing in folder but will play by this app if browsed by another.
3. It's great to be able to slow down the speed and change the pitch, also to mark short sections to repeat until I get it.since i started using it, there have been tracks i have that will not play through it.
4. Thank you! Update: I recently had a book in which the reader was a bit too "Hollywood" and so the softer parts of the reading and the louder parts were so varied that I couldn't hear the softer parts while driving; so I hope there's a "Normalize" function to be added in later versions.
5. It saves me so much time for my audiobooks! On the good readers; I can do up to 2.50x playback speed without a problem; so I'm able to finish a book in about 3 hours.
6. Multiple marks, Speed change up to 400%, and separate pitch change, Lot's of useful functions even in free version.
7. You can adjust the speed precisely, which you might want to vary based on tye quality of the audio.
8. Secondary importance 2) allowing the volume to decrease when the interruption happens.(Update) I received developer's email just in a day, and an instruction how to reset Preamp level.
9. Consistent quality playback, with simple interface to control speed and browse for new media.
10. The added noise is not helpful when analyzing musical passages that are difficult to dissect when played at full speed.
11. Clicking on playing file from folder restarts it.I've found this app very useful so far to learn Irish tunes by ear.