AudioStretch for Android

So, right of the bat. I love this app.

I often need to work on tunes in a different key than the recording, and this is my go-to helper app. The key can be changed without affecting the speed of the song, and the speed can be changed without affecting the key. Of course any vocals will sound a bit odd depending on how much the key is changed, but that is not a glitch with the app at all. You can also slow down the speed of a song to hear details or play along at a slower pace without changing the key, until you get familiar enough with the song to play at normal speed. I play lots of musical genres. One way that I use this: I find instrumental versions of fav rap songs and rewrite the lyrics. Sometimes I just need to backing tracks 5-10% slower so I can keep up with the bpm's. Highly recommended!

If they added even a basic EQ to this, it would be much easier on the ear to hear notes more clearly and filter out cymbals and other noise. I see this as an oversight. It would be nice to see this fixed. The app does work well to slow down and also loop audio and video.

Use it for editing. Works great!

I’m not paid to write this review, idk if there are other good reviews that were paid for out there but I kinda doubt it cuz the app is genuinly a good one. it costs $10, but if u often transpose music, this is a great investment. App has a great interface and it’s and it’s transposing software sounds great as well and maintains the timbre/formant of the sound well (which can be difficult at times) Although, one thing that I’d like to see as an added feature, if it doesn’t exist already, is the option to transpose audio by however many cents you want. The only intervals I can transpose by are 100 cent intervals, but some old recordings are tuned down a bit and in between half steps, which can make things a bit more difficult depending on how you transpose recordings.