Add colab notebook
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James Betker
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ad5cbffc71
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tortoise_tts.ipynb
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248
tortoise_tts.ipynb
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{
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"nbformat": 4,
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"nbformat_minor": 0,
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"metadata": {
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"colab": {
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"name": "tortoise-tts.ipynb",
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"provenance": [],
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"collapsed_sections": []
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},
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"kernelspec": {
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"name": "python3",
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"display_name": "Python 3"
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},
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"language_info": {
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"name": "python"
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},
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"accelerator": "GPU"
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},
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"cells": [
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {
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"id": "JrK20I32grP6"
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},
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"outputs": [],
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"source": [
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"!git clone https://github.com/neonbjb/tortoise-tts.git\n",
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"%cd tortoise-tts\n",
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"!pip install -r requirements.txt"
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]
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},
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{
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"cell_type": "code",
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"source": [
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"# Imports used through the rest of the notebook.\n",
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"import torch\n",
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"import torchaudio\n",
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"import torch.nn as nn\n",
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"import torch.nn.functional as F\n",
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"from tqdm import tqdm\n",
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"\n",
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"from utils.tokenizer import VoiceBpeTokenizer\n",
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"from models.discrete_diffusion_vocoder import DiscreteDiffusionVocoder\n",
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"from models.text_voice_clip import VoiceCLIP\n",
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"from models.dvae import DiscreteVAE\n",
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"from models.autoregressive import UnifiedVoice\n",
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"\n",
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"# These have some fairly interesting code that is hidden in the colab. Consider checking it out.\n",
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"from do_tts import download_models, load_discrete_vocoder_diffuser, load_conditioning, fix_autoregressive_output, do_spectrogram_diffusion"
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],
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"metadata": {
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"id": "Gen09NM4hONQ"
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},
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"execution_count": null,
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"outputs": []
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},
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{
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"cell_type": "code",
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"source": [
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"# Download pretrained models and set up pretrained voice bank. Feel free to upload and add your own voices here.\n",
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"# To do so, upload two WAV files cropped to 5-10 seconds of someone speaking.\n",
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"download_models()\n",
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"preselected_cond_voices = {\n",
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" # Male voices\n",
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" 'dotrice': ['voices/dotrice/1.wav', 'voices/dotrice/2.wav'],\n",
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" 'harris': ['voices/harris/1.wav', 'voices/harris/2.wav'],\n",
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" 'lescault': ['voices/lescault/1.wav', 'voices/lescault/2.wav'],\n",
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" 'otto': ['voices/otto/1.wav', 'voices/otto/2.wav'],\n",
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" # Female voices\n",
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" 'atkins': ['voices/atkins/1.wav', 'voices/atkins/2.wav'],\n",
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" 'grace': ['voices/grace/1.wav', 'voices/grace/2.wav'],\n",
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" 'kennard': ['voices/kennard/1.wav', 'voices/kennard/2.wav'],\n",
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" 'mol': ['voices/mol/1.wav', 'voices/mol/2.wav'],\n",
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" }"
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],
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"metadata": {
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"id": "SSleVnRAiEE2"
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},
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"execution_count": null,
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"outputs": []
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},
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{
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"cell_type": "code",
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"source": [
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"# This is the text that will be spoken.\n",
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"text = \"And took the other as just as fair, and having perhaps the better claim, because it was grassy and wanted wear.\"\n",
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"# This is the voice that will speak it.\n",
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"voice = 'atkins'\n",
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"# This is the number of samples we will generate from the DALLE-style model. More will produce better results, but will take longer to produce.\n",
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"# I don't recommend going less than 128.\n",
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"num_autoregressive_samples = 128"
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],
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"metadata": {
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"id": "bt_aoxONjfL2"
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},
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"execution_count": null,
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"outputs": []
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},
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{
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"cell_type": "code",
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"source": [
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"# Prepare data.\n",
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"tokenizer = VoiceBpeTokenizer()\n",
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"text = torch.IntTensor(tokenizer.encode(text)).unsqueeze(0).cuda()\n",
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"text = F.pad(text, (0,1)) # This may not be necessary.\n",
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"cond_paths = preselected_cond_voices[voice]\n",
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"conds = []\n",
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"for cond_path in cond_paths:\n",
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" c, cond_wav = load_conditioning(cond_path)\n",
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" conds.append(c)\n",
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"conds = torch.stack(conds, dim=1) # And just use the last cond_wav for the diffusion model."
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],
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"metadata": {
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"id": "KEXOKjIvn6NW"
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},
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"execution_count": null,
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"outputs": []
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},
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{
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"cell_type": "code",
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"source": [
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"# Load the autoregressive model.\n",
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"autoregressive = UnifiedVoice(max_mel_tokens=300, max_text_tokens=200, max_conditioning_inputs=2, layers=30, model_dim=1024,\n",
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" heads=16, number_text_tokens=256, start_text_token=255, checkpointing=False, train_solo_embeddings=False).cuda().eval()\n",
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"autoregressive.load_state_dict(torch.load('.models/autoregressive.pth'))\n",
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"stop_mel_token = autoregressive.stop_mel_token"
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],
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"metadata": {
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"id": "Z15xFT_uhP8v"
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},
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"execution_count": null,
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"outputs": []
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},
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{
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"cell_type": "code",
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"source": [
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"# Perform inference with the autoregressive model, generating num_autoregressive_samples\n",
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"with torch.no_grad():\n",
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" samples = []\n",
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" for b in tqdm(range(num_autoregressive_samples // 16)):\n",
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" codes = autoregressive.inference_speech(conds, text, num_beams=1, repetition_penalty=1.0, do_sample=True, top_k=50, top_p=.95,\n",
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" temperature=.9, num_return_sequences=16, length_penalty=1)\n",
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" padding_needed = 250 - codes.shape[1]\n",
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" codes = F.pad(codes, (0, padding_needed), value=stop_mel_token)\n",
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" samples.append(codes)\n",
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"\n",
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"# Delete model weights to conserve memory.\n",
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"del autoregressive"
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],
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"metadata": {
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"id": "xajqWiEik-j0"
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},
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"execution_count": null,
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"outputs": []
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},
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{
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"cell_type": "code",
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"source": [
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"# Load the CLIP model.\n",
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"clip = VoiceCLIP(dim_text=512, dim_speech=512, dim_latent=512, num_text_tokens=256, text_enc_depth=8, text_seq_len=120, text_heads=8,\n",
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" num_speech_tokens=8192, speech_enc_depth=10, speech_heads=8, speech_seq_len=250).cuda().eval()\n",
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"clip.load_state_dict(torch.load('.models/clip.pth'))"
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],
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"metadata": {
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"id": "KNgYSyuyliMs"
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},
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"execution_count": null,
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"outputs": []
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},
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{
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"cell_type": "code",
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"source": [
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"# Use the CLIP model to select the best autoregressive output to match the given text.\n",
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"clip_results = []\n",
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"with torch.no_grad():\n",
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" for batch in samples:\n",
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" for i in range(batch.shape[0]):\n",
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" batch[i] = fix_autoregressive_output(batch[i], stop_mel_token)\n",
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" text = text[:, :120] # Ugly hack to fix the fact that I didn't train CLIP to handle long enough text.\n",
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" clip_results.append(clip(text.repeat(batch.shape[0], 1),\n",
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" torch.full((batch.shape[0],), fill_value=text.shape[1]-1, dtype=torch.long, device='cuda'),\n",
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" batch, torch.full((batch.shape[0],), fill_value=batch.shape[1]*1024, dtype=torch.long, device='cuda'),\n",
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" return_loss=False))\n",
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" clip_results = torch.cat(clip_results, dim=0)\n",
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" samples = torch.cat(samples, dim=0)\n",
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" best_results = samples[torch.topk(clip_results, k=1).indices]\n",
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"\n",
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"# Save samples to CPU memory, delete clip to conserve memory.\n",
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"samples = samples.cpu()\n",
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"del clip"
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],
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"metadata": {
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"id": "DDXkM0lclp4U"
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},
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"execution_count": null,
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"outputs": []
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},
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{
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"cell_type": "code",
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"source": [
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"# Load the DVAE and diffusion model.\n",
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"dvae = DiscreteVAE(positional_dims=1, channels=80, hidden_dim=512, num_resnet_blocks=3, codebook_dim=512, num_tokens=8192, num_layers=2,\n",
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" record_codes=True, kernel_size=3, use_transposed_convs=False).cuda().eval()\n",
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"dvae.load_state_dict(torch.load('.models/dvae.pth'), strict=False)\n",
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"diffusion = DiscreteDiffusionVocoder(model_channels=128, dvae_dim=80, channel_mult=[1, 1, 1.5, 2, 3, 4, 6, 8, 8, 8, 8], num_res_blocks=[1, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1],\n",
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" spectrogram_conditioning_resolutions=[2,512], attention_resolutions=[512,1024], num_heads=4, kernel_size=3, scale_factor=2,\n",
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" conditioning_inputs_provided=True, time_embed_dim_multiplier=4).cuda().eval()\n",
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"diffusion.load_state_dict(torch.load('.models/diffusion.pth'))\n",
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"diffuser = load_discrete_vocoder_diffuser(desired_diffusion_steps=100)"
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],
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"metadata": {
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"id": "97acSnBal8Q2"
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},
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"execution_count": null,
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"outputs": []
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},
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{
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"cell_type": "code",
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"source": [
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"# Decode the (best) discrete sequence created by the autoregressive model.\n",
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"with torch.no_grad():\n",
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" for b in range(best_results.shape[0]):\n",
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" code = best_results[b].unsqueeze(0)\n",
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" wav = do_spectrogram_diffusion(diffusion, dvae, diffuser, code, cond_wav, spectrogram_compression_factor=256, mean=True)\n",
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" torchaudio.save(f'{voice}_{b}.wav', wav.squeeze(0).cpu(), 22050)"
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],
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"metadata": {
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"id": "HEDABTrdl_kM"
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},
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"execution_count": null,
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"outputs": []
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},
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{
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"cell_type": "code",
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"source": [
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"# Listen to your text! (told you that'd take a long time..)\n",
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"from IPython.display import Audio\n",
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"Audio(data=wav.squeeze(0).cpu().numpy(), rate=22050)"
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],
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"metadata": {
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"id": "EyHmcdqBmSvf"
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},
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"execution_count": null,
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"outputs": []
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}
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]
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}
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