---
title: DDSP
emoji: 🎻
colorFrom: blue
colorTo: indigo
sdk: docker
sdk_version: 6.24.0
app_file: app.py
pinned: false
license: apache-2.0
short_description: Magenta DDSP timbre transfer and synthesis
tags:
  - category:effects
  - subcategory:timbre-transfer
  - input:audio
  - output:audio
app_port: 7860
---

# DDSP Timbre Transfer

Differentiable DSP timbre transfer: recast your audio in the timbre of a pretrained instrument (Violin, Flute, Trumpet, ...). Runs the original, unmodified DDSP stack in an isolated Python 3.9 backend.

Dual-interpreter HARP Space: a pyharp/Gradio frontend (Python 3.10) drives an isolated model backend (Python 3.9) via a one-shot subprocess, so the backend's pinned dependencies never touch pyharp/Gradio.

- Inputs: audio, dropdown, slider, checkbox, slider, slider, slider, slider
- Outputs: audio

Generated by the HARP model agent from a recipe.