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tortoise-tts-models
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name: james-finetune
model: extensibletrainer
scale: 1
gpu_ids: [0] # Superfluous, redundant, unnecessary, the way you launch the training script will set this
start_step: 0
checkpointing_enabled: true 
fp16: false
wandb: false 
use_tb_logger: true

datasets:
  train:
    name: james-train
    n_workers: 2
    batch_size: 68
    mode: paired_voice_audio
    path: ./training/james/train.txt
    fetcher_mode: ['lj']
    phase: train
    max_wav_length: 255995
    max_text_length: 200
    sample_rate: 22050
    load_conditioning: True
    num_conditioning_candidates: 2
    conditioning_length: 44000
    use_bpe_tokenizer: True
    tokenizer_vocab: ./models/tortoise/bpe_lowercase_asr_256.json
    load_aligned_codes: False
  val: # I really do not care about validation right now
    name: james-val
    n_workers: 1
    batch_size: 1
    mode: paired_voice_audio
    path: ./training/james/train.txt
    fetcher_mode: ['lj']
    phase: val
    max_wav_length: 255995
    max_text_length: 200
    sample_rate: 22050
    load_conditioning: True
    num_conditioning_candidates: 2
    conditioning_length: 44000
    use_bpe_tokenizer: True
    tokenizer_vocab: ./models/tortoise/bpe_lowercase_asr_256.json
    load_aligned_codes: False

steps:        
  gpt_train:
    training: gpt
    loss_log_buffer: 500

    # Generally follows the recipe from the DALLE paper.
    optimizer: adamw # this should be adamw_zero if you're using distributed training
    optimizer_params:
      lr: !!float 1e-05 # originally: 1e-4
      weight_decay: !!float 1e-2
      beta1: 0.9
      beta2: 0.96
    clip_grad_eps: 4

    injectors:
      paired_to_mel:
        type: torch_mel_spectrogram
        mel_norm_file: ./models/tortoise/clips_mel_norms.pth
        in: wav
        out: paired_mel
      paired_cond_to_mel:
        type: for_each
        subtype: torch_mel_spectrogram
        mel_norm_file: ./models/tortoise/clips_mel_norms.pth
        in: conditioning
        out: paired_conditioning_mel
      to_codes:
        type: discrete_token
        in: paired_mel
        out: paired_mel_codes
        dvae_config: "./models/tortoise/train_diffusion_vocoder_22k_level.yml"
      paired_fwd_text:
        type: generator
        generator: gpt
        in: [paired_conditioning_mel, padded_text, text_lengths, paired_mel_codes, wav_lengths]
        out: [loss_text_ce, loss_mel_ce, logits]      
    losses:
      text_ce:
        type: direct
        weight: 0.01
        key: loss_text_ce
      mel_ce:
        type: direct
        weight: 1
        key: loss_mel_ce

networks:
  gpt:
    type: generator 
    which_model_G: unified_voice2 # none of the unified_voice*.py files actually match the tortoise inference code... 4 and 3 have "alignment_head" (wtf is that?), 2 lacks the types=1 parameter.
    kwargs:
      layers: 30 # originally: 8
      model_dim: 1024 # originally: 512
      heads: 16 # originally: 8
      max_text_tokens: 402 # originally: 120
      max_mel_tokens: 604 # originally: 250
      max_conditioning_inputs: 2 # originally: 1
      mel_length_compression: 1024
      number_text_tokens: 256 # supposed to be 255 for newer unified_voice files 
      number_mel_codes: 8194
      start_mel_token: 8192
      stop_mel_token: 8193
      start_text_token: 255
      train_solo_embeddings: False # missing in uv3/4
      use_mel_codes_as_input: True # ditto
      checkpointing: True
      #types: 1 # this is MISSING, but in my analysis 1 is equivalent to not having it.
      #only_alignment_head: False  # uv3/4

path:
  # pretrain_model_gpt: './models/tortoise/autoregressive.pth' 
  strict_load: true
  resume_state: './training/james-finetune//training_state//500.state'

train:
  niter: 2000
  warmup_iter: -1
  mega_batch_factor: 34
  val_freq: 2000

  ema_enabled: false # I really don't think EMA matters

  default_lr_scheme: MultiStepLR
  gen_lr_steps: [9, 18, 25, 33] #[50000, 100000, 140000, 180000]
  lr_gamma: 0.5

eval:
  output_state: gen
  injectors:
    gen_inj_eval:
      type: generator
      generator: generator
      in: hq
      out: [gen, codebook_commitment_loss]

logger: 
  print_freq: 5
  save_checkpoint_freq: 50
  visuals: [gen, mel]
  visual_debug_rate: 5
  is_mel_spectrogram: true