Prism4music

Separate music and video into vocals and various instruments. For karaoke or instrumental practice. 1. Prism4Music is the Prism for Music.
Vocals, bass, piano, guitar, drums (snare, bass drum, cymbals, toms), and can be separated into 9 tones.

2. Also supports Video.
Enjoy your favorite music videos while using for karaoke or instrument practice.

3. Music Source Separation Technology
Prism4music has achieved state-of-the-art sound source separation by customizing and incorporating 'Demucs' known for its superior sound source separation technology, for the iPhone.
Implemented as parallel processing, allowing seamless music playback even during conversion.

4. Import music files (including videos) such as mp4, mov, m4a, mp3, wav, etc. from the Music, Files, and Photos apps.
The free version can only isolate the first 60 seconds of a file (limit can be removed with in-app purchase).

5. Each separate tone can be turned on/off individually and the volume can be adjusted.

6. Pitch shift (raise or lower the key by a semitone) and time stretch (increase or decrease the speed without changing the pitch) are also available.

7. Pinch and Pan
You can pinch a graph with two fingers to expand it, or pan it back and forth with two fingers to the left or right.

8. Playback History
Instantly open previously separated music using cache.
Key, tempo, and AB repeat settings are also recorded.
The free version allows up to 2 playback history entries, while the premium version has no limit.

9. Automatic BPM detection and BPM specification function (in-app purchase)
Automatic BPM (beats per minute) detection when music files (including videos) are loaded.
Based on this BPM, the tempo can be set to a higher or lower level. Please use this function for practicing musical instruments.

10. Export function of separated songs (in-app purchase)
The Premium version can export separated songs.