| { | |
| "model_type": "diffusion_cond", | |
| "sample_size": 524288, | |
| "sample_rate": 44100, | |
| "audio_channels": 2, | |
| "model": { | |
| "pretransform": { | |
| "type": "autoencoder", | |
| "iterate_batch": false, | |
| "model_half": 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": 64 } }, | |
| { "id": "seconds_total", "type": "number", "config": { "min_val": 0, "max_val": 256 } } | |
| ], | |
| "cond_dim": 768 | |
| }, | |
| "diffusion": { | |
| "cross_attention_cond_ids": ["prompt", "seconds_total"], | |
| "global_cond_ids": ["seconds_total"], | |
| "diffusion_objective": "rectified_flow", | |
| "distribution_shift_options": { "min_length": 256, "max_length": 4096 }, | |
| "type": "dit", | |
| "config": { | |
| "io_channels": 64, | |
| "embed_dim": 1024, | |
| "depth": 16, | |
| "num_heads": 8, | |
| "cond_token_dim": 768, | |
| "global_cond_dim": 768, | |
| "transformer_type": "continuous_transformer", | |
| "attn_kwargs": { "qk_norm": "ln" } | |
| } | |
| }, | |
| "io_channels": 64 | |
| }, | |
| "training": { | |
| "use_ema": true, | |
| "log_loss_info": false, | |
| "pre_encoded": false, | |
| "timestep_sampler": "trunc_logit_normal", | |
| "optimizer_configs": { | |
| "diffusion": { | |
| "optimizer": { | |
| "type": "AdamW", | |
| "config": { | |
| "lr": 5e-5, | |
| "betas": [0.9, 0.95], | |
| "eps": 1e-8, | |
| "weight_decay": 0.01, | |
| "foreach": true | |
| } | |
| }, | |
| "scheduler": { | |
| "type": "InverseLR", | |
| "config": { "inv_gamma": 500000, "power": 0.5, "warmup": 0.999 } | |
| } | |
| } | |
| }, | |
| "demo": { | |
| "demo_every": 2000, | |
| "demo_steps": 50, | |
| "num_demos": 8, | |
| "demo_cond": [ | |
| {"prompt": "Amen break 174 BPM", "seconds_total": 6}, | |
| {"prompt": "People talking in a crowded cafe", "seconds_total": 10}, | |
| {"prompt": "chillhop 91 bpm", "seconds_total": 6}, | |
| {"prompt": "trap 120bpm", "seconds_total": 12}, | |
| {"prompt": "A dog barking next to a waterfall", "seconds_total": 6}, | |
| {"prompt": "Glitchy bass design, I used Serum for this", "seconds_total": 4}, | |
| {"prompt": "chillhop 132 bpm", "seconds_total": 12}, | |
| {"prompt": "Birds singing in the forest", "seconds_total": 10} | |
| ], | |
| "demo_cfg_scales": [1, 4, 7] | |
| } | |
| } | |
| } | |