Music Style Transfer with Time-Varying Inversion of Diffusion Models

Description

This repo contains code, data samples and user guide for our AAAI2024 paper "Music Style Transfer with Time-Varying Inversion of Diffusion Models".

Setup

Our code builds on, and shares requirements with Textual Inversion (LDM). To set up their environment, please run:

conda env create -f environment.yaml
conda activate ldm

You will also need the official Riffusion text-to-image checkpoint, available through the Riffusion project page.

Currently, the model can be downloaded by running:

mkdir -p models/ldm/sd/
wget -O models/ldm/sd/model.ckpt https://huggingface.co/riffusion/riffusion-model-v1/resolve/main/riffusion-model-v1.ckpt

Usage

Inversion

To invert an image set, run:

python main.py --base configs/stable-diffusion/v1-finetune.yaml
               -t 
               --actual_resume /path/to/pretrained/model.ckpt 
               -n <run_name> 
               --gpus 0, 
               --data_root /path/to/directory/with/style mel-spectrograms

In the paper, we use 3k training iterations. However, some concepts (particularly styles) can converge much faster.

Embeddings and output images will be saved in the log directory.

See configs/stable-diffusion/v1-finetune.yaml for more options, such as: changing the placeholder string which denotes the concept (defaults to "*"), changing the maximal number of training iterations, changing how often checkpoints are saved and more.

Generation

To generate new images of the learned concept, run:

python scripts/txt2img.py --ddim_eta 0.0 
                          --n_samples 1 
                          --n_iter 2 
                          --scale 5.0 
                          --ddim_steps 50 
                          --strength 0.7
                          --content_path /path/to/directory/with/content mel-spectrograms
                          --embedding_path /path/to/logs/trained_model/checkpoints/ 
                          --ckpt_path /path/to/pretrained/model.ckpt 
                          --prompt "*"

where * is the placeholder string used during inversion. Several model files can be downloaded from Google drive.

Performing conversion between mel-spectrograms and audio

Please refer to Riffusion project page.

Data

We provide some samples of our data in ./images folder.

Tips and Tricks

• Results can be seed sensititve. If you're unsatisfied with the model, try re-inverting with a new seed (by adding --seed <#> to the prompt).

Results

Samples are available at MusicTI.

Evaluation

We utilize [CLAP] (https://github.com/LAION-AI/CLAP) ( Contrastive Language-Audio Pretraining) for quantitative evaluation.

Comparision

We compare the results obtained by running the official code and models provided for the following two methods on our collected dataset. [SSVQVAE] (https://github.com/cifkao/ss-vq-vae) [MUSICGEN] (https://github.com/facebookresearch/audiocraft)