vocoder_config.json

{
    "model": "multiband_melgan",
    "run_name": "coqui_tts",
    "run_description": "",
    "epochs": 2000,
    "batch_size": 32,
    "eval_batch_size": 16,
    "mixed_precision": true,
    "scheduler_after_epoch": false,
    "run_eval": true,
    "test_delay_epochs": 5,
    "print_eval": false,
    "dashboard_logger": "tensorboard",
    "print_step": 25,
    "plot_step": 100,
    "model_param_stats": false,
    "project_name": null,
    "log_model_step": null,
    "wandb_entity": null,
    "save_step": 10000,
    "checkpoint": true,
    "keep_all_best": false,
    "keep_after": 10000,
    "num_loader_workers": 12,
    "num_eval_loader_workers": 12,
    "use_noise_augment": true,
    "output_path": "/home/robinhad/Projects/TTS/recipes/ljspeech/multiband_melgan",
    "distributed_backend": "nccl",
    "distributed_url": "tcp://localhost:54321",
    "audio": {
        "fft_size": 1024,
        "win_length": 1024,
        "hop_length": 256,
        "frame_shift_ms": null,
        "frame_length_ms": null,
        "stft_pad_mode": "reflect",
        "sample_rate": 16000,
        "resample": false,
        "preemphasis": 0.0,
        "ref_level_db": 20,
        "do_sound_norm": false,
        "log_func": "np.log10",
        "do_trim_silence": true,
        "trim_db": 45,
        "power": 1.5,
        "griffin_lim_iters": 60,
        "num_mels": 80,
        "mel_fmin": 0.0,
        "mel_fmax": null,
        "spec_gain": 20,
        "do_amp_to_db_linear": true,
        "do_amp_to_db_mel": true,
        "signal_norm": true,
        "min_level_db": -100,
        "symmetric_norm": true,
        "max_norm": 4.0,
        "clip_norm": true,
        "stats_path": null
    },
    "eval_split_size": 10,
    "data_path": "../Data/uk_UK/by_book/female",
    "feature_path": null,
    "seq_len": 8192,
    "pad_short": 2000,
    "conv_pad": 0,
    "use_cache": true,
    "wd": 0.0,
    "optimizer": "AdamW",
    "optimizer_params": {
        "betas": [
            0.8,
            0.99
        ],
        "weight_decay": 0.0
    },
    "use_stft_loss": true,
    "use_subband_stft_loss": true,
    "use_mse_gan_loss": true,
    "use_hinge_gan_loss": false,
    "use_feat_match_loss": false,
    "use_l1_spec_loss": false,
    "stft_loss_weight": 0.5,
    "subband_stft_loss_weight": 0,
    "mse_G_loss_weight": 2.5,
    "hinge_G_loss_weight": 0,
    "feat_match_loss_weight": 108,
    "l1_spec_loss_weight": 0,
    "stft_loss_params": {
        "n_ffts": [
            1024,
            2048,
            512
        ],
        "hop_lengths": [
            120,
            240,
            50
        ],
        "win_lengths": [
            600,
            1200,
            240
        ]
    },
    "l1_spec_loss_params": {
        "use_mel": true,
        "sample_rate": 16000,
        "n_fft": 1024,
        "hop_length": 256,
        "win_length": 1024,
        "n_mels": 80,
        "mel_fmin": 0.0,
        "mel_fmax": null
    },
    "target_loss": "loss_0",
    "grad_clip": [
        5,
        5
    ],
    "lr_gen": 0.0001,
    "lr_disc": 0.0001,
    "lr_scheduler_gen": "MultiStepLR",
    "lr_scheduler_gen_params": {
        "gamma": 0.5,
        "milestones": [
            100000,
            200000,
            300000,
            400000,
            500000,
            600000
        ]
    },
    "lr_scheduler_disc": "MultiStepLR",
    "lr_scheduler_disc_params": {
        "gamma": 0.5,
        "milestones": [
            100000,
            200000,
            300000,
            400000,
            500000,
            600000
        ]
    },
    "use_pqmf": true,
    "diff_samples_for_G_and_D": false,
    "discriminator_model": "melgan_multiscale_discriminator",
    "discriminator_model_params": {
        "base_channels": 16,
        "max_channels": 512,
        "downsample_factors": [
            4,
            4,
            4
        ]
    },
    "generator_model": "multiband_melgan_generator",
    "generator_model_params": {
        "upsample_factors": [
            8,
            4,
            2
        ],
        "num_res_blocks": 4
    },
    "steps_to_start_discriminator": 200000,
    "subband_stft_loss_params": {
        "n_ffts": [
            384,
            683,
            171
        ],
        "hop_lengths": [
            30,
            60,
            10
        ],
        "win_lengths": [
            150,
            300,
            60
        ]
    }
}