A free app for Android, by yimanxinshenzhen.
How does the app work?
If you have an audio file that you would like to loop, select the desired parts and drag them to the playfield. A new window will appear where you can set the playback speed (tempo).
For example, if you want to practice your Russian, select all the words and drag them to the playfield. You will be able to practice in real-time and see the results in the form of a visual graph.
You can choose to compare your pronunciation with the original audio or with a transcription. The audio file will be compared with the original and with the transcript to give you an idea of how your pronunciation is doing.
What does the app have?
If you want to practice your Russian, select all the words and drag them to the playfield.
In addition, you can use this app to help transcribing audio, listening to audiobooks/podcasts efficiently.