| { |
| "model_type": "diffusion_cond", |
| "sample_size": 2097152, |
| "sample_rate": 44100, |
| "audio_channels": 2, |
| "model": { |
| "pretransform": { |
| "type": "autoencoder", |
| "iterate_batch": true, |
| "config": { |
| "encoder": { |
| "type": "oobleck", |
| "requires_grad": false, |
| "config": { |
| "in_channels": 2, |
| "channels": 128, |
| "c_mults": [1, 2, 4, 8, 16], |
| "strides": [2, 4, 4, 8, 8], |
| "latent_dim": 128, |
| "use_snake": true |
| } |
| }, |
| "decoder": { |
| "type": "oobleck", |
| "config": { |
| "out_channels": 2, |
| "channels": 128, |
| "c_mults": [1, 2, 4, 8, 16], |
| "strides": [2, 4, 4, 8, 8], |
| "latent_dim": 64, |
| "use_snake": true, |
| "final_tanh": false |
| } |
| }, |
| "bottleneck": { |
| "type": "vae" |
| }, |
| "latent_dim": 64, |
| "downsampling_ratio": 2048, |
| "io_channels": 2 |
| } |
| }, |
| "conditioning": { |
| "configs": [ |
| { |
| "id": "prompt", |
| "type": "t5", |
| "config": { |
| "t5_model_name": "t5-base", |
| "max_length": 128 |
| } |
| }, |
| { |
| "id": "seconds_start", |
| "type": "number", |
| "config": { |
| "min_val": 0, |
| "max_val": 512 |
| } |
| }, |
| { |
| "id": "seconds_total", |
| "type": "number", |
| "config": { |
| "min_val": 0, |
| "max_val": 512 |
| } |
| } |
| ], |
| "cond_dim": 768 |
| }, |
| "diffusion": { |
| "cross_attention_cond_ids": ["prompt", "seconds_start", "seconds_total"], |
| "global_cond_ids": ["seconds_start", "seconds_total"], |
| "type": "dit", |
| "config": { |
| "io_channels": 64, |
| "embed_dim": 1536, |
| "depth": 24, |
| "num_heads": 24, |
| "cond_token_dim": 768, |
| "global_cond_dim": 1536, |
| "project_cond_tokens": false, |
| "transformer_type": "continuous_transformer" |
| } |
| }, |
| "io_channels": 64 |
| }, |
| "training": { |
| "use_ema": true, |
| "log_loss_info": false, |
| "optimizer_configs": { |
| "diffusion": { |
| "optimizer": { |
| "type": "AdamW", |
| "config": { |
| "lr": 5e-5, |
| "betas": [0.9, 0.999], |
| "weight_decay": 1e-3 |
| } |
| }, |
| "scheduler": { |
| "type": "InverseLR", |
| "config": { |
| "inv_gamma": 1000000, |
| "power": 0.5, |
| "warmup": 0.99 |
| } |
| } |
| } |
| }, |
| "demo": { |
| "demo_every": 2000, |
| "demo_steps": 250, |
| "num_demos": 4, |
| "demo_cond": [ |
| {"prompt": "Amen break 174 BPM", "seconds_start": 0, "seconds_total": 12}, |
| {"prompt": "A beautiful orchestral symphony, classical music", "seconds_start": 0, "seconds_total": 160}, |
| {"prompt": "Chill hip-hop beat, chillhop", "seconds_start": 0, "seconds_total": 190}, |
| {"prompt": "A pop song about love and loss", "seconds_start": 0, "seconds_total": 180} |
| ], |
| "demo_cfg_scales": [3, 6, 9] |
| } |
| } |
| } |
