HW 2: Source Separation
PAT 463/563: Music and AI (Fall 2025)
Due at 11:59pm ET on October 15
Instructions
- All assignments must be completed on your own. You are welcome to exchange ideas with your peers, but this should be in the form of concepts and discussion, not in the form of writing and code.
- Provide proper citations/references for any external resources you use in your writing and code.
- Submit your work to Gradescope.
- Late submissions will be accepted for up to a week with 1 point deducted per day.
Moises
Moises is an AI-powered suite for music makers to learn, practice, produce, and collaborate. With the Moises Educator’s Pilot Program, all enrolled students have access to Moises Pro until Summer 2026. Please register here.
- Use your U-M email (@umich.edu)
- Sign up using a desktop browser
- Ignore the prompt to upgrade your account
Q1: Music Source Separation (2pt)
Find the track separation feature at the left navigation bar.
Pick a song you like and separate it using Moises’ track separation feature. Choose the separation targets according to the song you select.
For copyright-safe music, you can find CC-licensed music on Jamendo, such as Like Before by Bessonn&sa and Only Drums Jazzy Hip-Hop by Oleg Silukov. You can also find several demo songs provided by Moises at “Setlists > Moises Collection”:
Tasks & Questions:
- Q1.1: Upload the input mixture and one of the separated tracks that you find interesting (either positive or negative) as MP3/WAV files. (1pt)
- Q1.2: What did you find interesting about the selected track? (1pt)
Q2: Cinematic Sound Separation (2pt)
Beyond music source separation, a broader task called cinematic sound separation aims to separate an audio mixture into music, dialogue and sound effects. On Moises, you may use the cinematic sound separation feature by selecting “Dialogue, Soundtrack, Effects”.
Pick one of the following videos (all in public domain) and separate the audio using Moises’ track separation feature. You can save the audio file by right clicking on the audio player.
| Steamboat Willie (1928) | The Jungle Book (1942) |
|---|---|
| The Wabbit Who Came to Supper (1942) | The Stranger (1946) |
|---|---|
| Robinson Crusoe (1954) | Charade (1963) |
|---|---|
Tasks & Questions:
- Q2.1: Upload the three separated tracks as MP3/WAV files. (1pt)
- Q2.2: Did you notice any errors or artifacts? (1pt)
Q3: Share Your Experience (1pt)
Share your experience briefly, including:
- When can such features be useful? Who might want to use these features?
- What works well? What can be improved?
- What are some risks and concerns of these features?