前几天和大家分享了如何从0到1搭建一套语音交互系统。

其中，语音合成（TTS）是提升用户体验的关键所在。于是，上一篇接着和大家聊了聊：全网爆火的AI语音合成工具-ChatTTS，有人已经拿它赚到了第一桶金，送增强版整合包。

后台有小伙伴反应实测中发现了一些常见的问题，今天，单独开一篇关于ChatTTS的进阶教程，手把手带你实现如何固定音色、设置语速、添加停顿词、口头语、笑声等，以及超长文本生成背后的原理。

全程干货满满，赶紧上车~

全文目录

# ChatTTS 简介
# ChatTTS 基础-环境准备
# ChatTTS 进阶-固定音色
# ChatTTS 进阶-固定语速
# ChatTTS 进阶-添加停顿
## 添加停顿词
## 添加笑声
## 添加口头语
# ChatTTS 进阶-超长文本语音生成

ChatTTS 简介

GitHub 仓库地址：https://github.com/2noise/ChatTTS

ChatTTS 是一个文本转语音的开源项目，短短2周左右的时间，在 GitHub 上已经斩获了 24.4k 的 Star，绝对的爆火级项目。
在这里插入图片描述
还没有体验过 ChatTTS 的小伙伴，出门右转看这篇👉：：全网爆火的AI语音合成工具-ChatTTS，有人已经拿它赚到了第一桶金，送增强版整合包。

下面我们直接进入实操，先准备好本地环境，然后开启进阶用法。

ChatTTS 基础-环境准备

1. 安装环境

在自己本地，打开一个终端：

git clone https://github.com/2noise/ChatTTS
cd ChatTTS
pip install -r requirements.txt

2.下载模型

最后先下载模型到本地（代码中自动下载非常慢）。

**方式一：**从huggingface下载（太慢了，很有可能失败，不推荐）

# 先安装需要用到的包
pip install huggingface-hub
pip install hf_transfer
conda install -c conda-forge pynini=2.1.5 && pip install WeTextProcessing
pip install nemo_text_processing

# 编写代码
import os
os.environ['HF_ENDPOINT']="https://hf-mirror.com"
os.environ['HF_HUB_ENABLE_HF_TRANSFER']="1"
from huggingface_hub import snapshot_download

snapshot_download(
    repo_id="2Noise/ChatTTS", # 模型名称 or 地址
    local_dir='../models/ChatTTS', # 保存模型到指定位置，供下次加载使用
    cache_dir='../models' # 缓存地址
    )

方式二：从modelscope上下载 （速度更快，强烈推荐）

git clone https://www.modelscope.cn/henjicc/ChatTTS.git

3.小试牛刀-文本转语音

进行模型推理实现中文文本转语音，注意将 local_path 改为你自己下载好的模型地址。

import torch
import torchaudio
import ChatTTS

torch._dynamo.config.cache_size_limit = 64
torch._dynamo.config.suppress_errors = True
torch.set_float32_matmul_precision('high')

chat = ChatTTS.Chat()
# compile=True效果好，但是更慢
chat.load_models(source='local', local_path='/path/to/models/ChatTTS', compile=False)

texts = [
    "你好啊，我是猴哥，欢迎您关注 猴哥的AI知识库 公众号，下次更新不迷路",
    ]
wavs = chat.infer(texts)

torchaudio.save("output.wav", torch.from_numpy(wavs[0]), 24000)

如果没有报错，上述代码会将生成结果保存在当前目录，打开试试吧~

你会发现每次生成的音频音色是不一样的，这是因为 ChatTTS 每次都会随机选择一个音色进行合成。

如果想要固定音色，以及更多个性化设置，继续往下看~

ChatTTS 进阶-固定音色

在ChatTTS中，控制音色的主要是参数 spk_emb，让我们看下源码：

def sample_random_speaker(self, ):
  dim = self.pretrain_models['gpt'].gpt.layers[0].mlp.gate_proj.in_features
  # dim=768
  std, mean = self.pretrain_models['spk_stat'].chunk(2)
  # std.size:(768),mean.size(768)
  return torch.randn(dim, device=std.device) * std + mean

sample_random_speaker 返回的是一个 768 维的向量，也就是说如果你把这个 768 维的向量固定住，就可以获取一个固定的音色了。

为了节省大家抽卡获取音色的时间，这里猴哥梳理了两个有特点的音色。保存下来，直接取用~

音色一:男-铿锵有力:

'3.281,2.916,2.316,2.280,-0.884,0.723,-10.224,-0.266,2.000,4.442,1.427,-1.075,-3.027,0.438,1.224,1.043,-0.423,-3.808,0.740,-4.704,10.824,-0.362,-0.291,10.761,1.843,6.068,-4.458,5.142,4.183,4.333,-4.859,-1.444,0.901,3.424,-0.992,-1.645,0.230,0.818,-2.294,1.417,2.839,-0.533,-2.302,-1.379,-3.898,0.998,-0.196,14.249,1.641,-6.927,-1.283,6.005,-0.125,1.531,3.420,8.003,-0.202,-2.823,4.435,2.378,5.186,4.951,1.945,-2.100,1.644,1.921,-1.138,6.229,-5.203,3.610,-0.919,-5.326,2.130,-4.196,21.073,-0.012,11.642,-4.142,-0.581,-0.138,0.882,-1.235,2.377,6.930,3.499,-0.239,4.493,0.411,-2.122,-7.575,0.809,0.885,0.008,0.900,9.930,-3.983,-0.462,-0.699,-4.674,5.071,-3.361,-2.448,0.742,-3.553,-6.620,-0.570,2.859,-3.424,8.462,2.013,-0.204,6.866,-1.946,0.946,-0.440,-4.125,1.194,-2.351,5.368,-5.819,0.049,-0.918,-1.812,-2.288,4.262,12.440,2.084,-0.156,-5.392,0.106,3.279,4.475,0.139,1.006,5.619,0.716,-5.918,-0.774,-5.805,-7.207,-0.402,0.228,-1.422,4.098,1.244,-1.481,-0.672,-3.778,1.220,-0.947,0.807,-1.658,5.977,7.529,-1.070,-2.112,-2.946,-1.739,-2.284,-1.045,-0.442,-1.813,1.269,-2.797,0.321,0.155,-0.379,-2.554,-1.409,2.421,0.318,4.154,0.647,0.610,-3.516,4.489,3.286,3.552,-0.358,1.132,-2.382,-0.612,-5.613,-0.168,-0.680,1.723,-20.408,-2.504,5.870,1.631,4.703,-0.359,0.367,-1.661,-2.172,-9.155,-3.521,-1.058,4.984,-4.086,-3.736,8.959,-1.759,-1.117,17.161,1.497,1.160,2.355,2.584,-2.312,-2.436,0.787,-4.522,5.730,-2.144,1.276,-5.419,-5.749,8.496,5.873,-0.472,-1.497,1.162,8.649,0.326,-0.714,4.123,-3.431,-1.579,0.016,-4.171,-15.907,0.607,1.909,-3.616,-0.803,-0.046,1.836,5.704,-0.730,3.511,7.312,-0.066,0.972,0.199,1.777,-3.750,0.089,18.306,1.156,-2.320,1.280,-2.491,-2.765,-19.535,-1.302,-8.004,-1.833,0.941,-3.547,-0.741,-1.860,-1.626,-2.555,-0.086,0.221,7.494,8.971,-2.007,-2.635,-2.494,-1.794,-5.080,4.963,-1.599,-1.862,-0.225,0.518,2.853,1.657,-0.257,-1.165,-7.366,2.681,5.232,0.592,-2.189,1.606,-1.407,-2.102,-2.945,2.853,8.901,0.029,-5.533,2.786,-0.961,2.544,1.200,-1.171,1.578,-1.681,-0.955,-2.784,2.281,-3.195,2.811,-1.718,0.810,-0.603,-1.736,-1.373,-0.891,-5.330,-1.381,9.614,4.155,0.047,-1.053,3.823,1.010,0.042,-2.849,1.482,0.798,19.538,-12.677,3.608,-1.660,4.493,2.087,-0.906,1.919,1.318,-1.815,-1.287,9.502,0.361,-4.073,-0.589,-1.339,5.567,1.668,0.479,0.333,-26.911,-3.391,-1.020,-4.389,-4.838,2.512,1.478,-3.802,-1.676,-0.469,0.898,3.632,-1.620,0.432,-1.906,-1.674,-7.568,0.361,1.675,-1.164,-13.232,-1.971,-3.983,-2.921,8.597,-0.231,-0.449,0.392,4.953,-5.841,0.047,4.419,-5.355,-4.528,-1.681,-8.136,0.295,3.060,-7.177,-1.483,1.266,2.680,2.265,-8.495,-2.133,1.485,-1.022,-3.286,-1.811,-1.127,-4.633,0.473,6.305,-4.399,-0.452,1.234,-0.245,4.392,2.415,-2.063,3.707,-4.495,3.831,29.219,-11.790,-0.259,1.078,-7.773,1.709,-1.397,-0.067,0.768,2.663,-1.454,-3.022,-1.810,5.015,1.889,1.119,-1.413,-3.240,4.198,14.864,-2.950,1.651,-3.228,-1.095,-2.941,1.231,-8.138,-1.936,-2.160,5.722,-5.481,0.544,-0.786,-1.140,-1.677,2.252,0.031,-2.385,-1.336,3.705,-3.270,-0.495,2.222,1.482,-6.423,-0.509,-1.519,5.775,0.420,-2.140,-3.850,2.567,8.821,-6.976,-6.974,-1.999,-3.226,-1.778,-6.607,9.911,-9.480,1.611,-0.308,-9.211,-1.476,1.751,-0.466,-2.363,-2.358,-4.866,-1.147,-3.444,-6.753,-0.507,-1.245,-2.413,-1.962,2.347,-0.094,-0.745,0.668,2.071,-0.755,-2.450,6.657,7.899,-6.277,2.189,-2.127,2.291,6.095,0.927,-0.250,-1.662,4.031,6.098,-17.201,-9.840,-0.729,1.427,3.222,-0.208,2.380,1.103,1.147,4.051,2.980,0.371,4.143,-1.133,0.486,-0.588,-0.392,-1.507,-0.803,-6.217,-0.947,-5.456,-9.972,-1.221,-1.677,0.376,-0.066,-0.987,-1.144,2.161,-0.282,1.924,1.364,10.975,-6.569,-5.145,-1.047,-1.040,-6.781,-0.387,-21.836,0.683,3.180,-0.757,-0.025,3.418,0.626,1.140,-4.496,-2.867,-2.973,10.865,2.019,-6.465,9.939,-0.107,-2.146,4.367,0.148,-1.867,1.160,-13.273,7.023,0.068,-1.266,-4.770,-1.669,-0.643,1.833,-0.005,-3.790,3.982,-4.962,-0.175,2.481,-0.260,-1.224,1.529,1.225,5.921,5.203,2.303,-2.092,-0.826,5.299,-0.106,0.513,-3.272,1.970,-2.140,-0.033,-3.860,2.144,2.398,-1.478,4.514,1.553,0.901,-2.297,4.627,-0.360,-0.540,0.280,4.952,-2.520,-3.369,19.334,-0.363,0.924,-0.099,-1.544,1.592,-0.163,6.088,-2.863,2.072,-0.336,-1.897,4.755,-3.300,-6.699,-3.852,0.276,-5.298,-0.012,-6.344,3.159,9.078,-2.398,-1.005,-5.604,1.775,4.505,1.172,-3.949,-1.302,5.698,-0.228,-8.495,-4.654,2.533,-4.065,0.098,0.392,2.624,0.928,-0.316,-0.798,-1.814,-3.183,-3.962,-2.339,-2.051,3.898,-1.971,-2.940,8.407,0.673,2.367,7.541,3.822,-6.822,-2.951,-2.204,10.548,-0.255,-1.850,1.263,1.779,1.912,0.608,-1.325,2.220,2.637,1.699,-8.412,-1.397,-0.422,-4.485,3.247,0.382,7.712,-2.262,-1.700,-0.506,7.307,7.266,-0.498,-6.427,-5.879,14.950,0.991,3.057,10.976,-3.662,-0.781,-0.486,7.302,1.052,-3.824,-9.337,-0.783,3.696,-1.935,1.468,-2.889,-1.950,-1.511,2.164,2.791,0.533,-0.986,0.150,1.650,0.909,1.949,-4.902,1.626,0.463,2.622,-1.272,2.164,2.691,-4.966,-0.418,-0.016,-8.490,-3.339,5.198,-3.525,2.392,0.445,1.293,3.217,6.489,1.553,2.088,-1.272,-1.077,3.093,-7.780,4.537,0.824,-1.956,1.215,0.527,2.576,-3.828,2.519,3.089,-4.081,-2.068,-0.241,0.574,-0.245,-1.646,-0.643,3.113,0.861,9.045,-4.593,5.160,3.660,-1.495'

音色二:女-铿锵有力:

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,-0.089,1.301,-4.817'

将音色向量放到代码中，就可以实现生成固定音色的音频，代码奉上：

speaker_vector = ' xxx ' # 768维向量
speaker = torch.tensor([float(x) for x in speaker_vector.split(',')])
my_text = """你好啊，我是猴哥，欢迎您关注 猴哥的AI知识库 公众号，下次更新不迷路"""
params_infer_code = {'prompt':'[speed_2]', 'temperature':.1,'top_P':0.9, 'top_K':1, 'spk_emb' : speaker}
params_refine_text = {'prompt':'[oral_0][laugh_0][break_6]'}

wavs = chat.infer([my_text],
                  do_text_normalization=True,
                  params_refine_text=params_refine_text,
                  params_infer_code=params_infer_code)

torchaudio.save("output.wav", torch.from_numpy(wavs[0]), 24000)

ChatTTS 进阶-固定语速

有心的同学可能已经发现了，上述代码中多了两个参数。

没错，ChatTTS 中，语速是 speed 参数实现的，设置播放的语速，从慢到快，共有10个等级[speed_0]~[speed_9]。

params_infer_code = {'prompt':'[speed_2]'}

ChatTTS 进阶-添加停顿

ChatTTS 中，主要的停顿有三种，分别是：

  • 停顿词
  • 笑声
  • 口头语

添加停顿词

在ChatTTS中，停顿词主要有10个等级 [break_0]~[break_9] 。其中[break_0]是完全没有停顿，[break_9] 停顿最长。当然，模型会根据文本内容自行添加停顿，你也可以在文本中手动添加停顿 [uv_break]。

如果需要 ChatTTS 模型自动添加停顿，只需加上参数 refine_text_only=True：

my_text="""不跟生活认输，不向岁月低头。如果风景不够好，就让我们多走几步。如果道路不好走，就让我们放慢脚步。只要还在路上，总能看到想要的风景，总能找到属于自己的方向。"""
params_infer_code = {'prompt':'[speed_4]', 'temperature':.1,'top_P':0.9, 'top_K':1, 'spk_emb' : girl_speaker}
params_refine_text = {'prompt':'[oral_0][laugh_0][break_6]'}
text = chat.infer([my_text], 
                          skip_refine_text=False,
                          refine_text_only=True,
                          params_refine_text=params_refine_text,
                          params_infer_code=params_infer_code
                          )
print("\n".join(text))

输出效果如下：

'不 跟 生 活 认 输 ， 不 向 岁 月 低 头 [uv_break] 。 如 果 风 景 不 够 好 [uv_break] ， 就 让 我 们 多 走 几 步 。 如 果 道 路 不 好 走 ， 就 让 我 们 放 慢 脚 步 [uv_break] 。 只 要 还 在 路 上 ， 总 能 看 到 想 要 的 风 景 [uv_break] ， 总 能 找 到 属 于 自 己 的 方 向 。'

如果需要自行添加停顿，只需在 文本中添加 [uv_break]。

示例如下：

my_text="不跟生活[uv_break]认输，不向岁月低头[laugh]。"

添加笑声

在ChatTTS中，添加笑声主要是通过 [laugh]， 共有10个等级[laugh_0]~[laugh_9]。其中[laugh_0]是没有笑声，[laugh_9]笑声较多。当然，模型会根据文本自动添加笑声，也可以像上面的示例一样手动添加 [laugh].

添加口头语

口头语，就是：“那么，就是，嗯” 等语气词。

在ChatTTS中，添加口头语主要是通过 [oral]，共有10个等级[oral_0]~[oral_9]。其中[oral-0]基本不添加口头语，[oral_9]添加最多口头语。

举个例子而言，你可以将下面这个参数放入模型试试看哈：

params_refine_text = {'prompt':'[oral_9][laugh_9][break_6]'}

ChatTTS 进阶-超长文本语音生成

目前 ChatTTS ，受模型限制，一次性只支持 30 秒以内的语音生成，当你一次生成文本过多时，模型只会截取前30秒的，之后的文本将被截断。

而要实现超长文本语音生成，只能通过过将文本拆分成多个句子，然后在合并音频的方式。

比如按行拆分，代码实现如下：

text = 
	"""
	如果本文对你有帮助，欢迎点赞收藏备用！
	猴哥一直在做 AI 领域的研发和探索，会陆续跟大家分享路上的思考和心得。
	最近开始运营一个公众号，旨在分享关于AI效率工具、自媒体副业的一切。用心做内容，不辜负每一份关注。
	新朋友欢迎关注 “猴哥的AI知识库” 公众号，下次更新不迷路。
	"""
params_infer_code = {'prompt':'[speed_2]', 'temperature':.1,'top_P':0.9, 'top_K':1, 'spk_emb' : speaker}
params_refine_text = {'prompt':'[oral_6][laugh_3][break_6]'}
# 将文本按照句号拆分为句子
inputs_text = text.split("\n")
wavs = chat.infer(inputs_text,
                  do_text_normalization=True,
                  params_refine_text=params_refine_text,
                  params_infer_code=params_infer_code)
# 合并音频
finally_wavs = torch.tensor(np.concatenate(wavs,axis=-1))
# 将输出的语音保存为音频文件
torchaudio.save("output.wav",finally_wavs, 24000)

写在最后

这是关于 ChatTTS 的第三篇文章，希望这些进阶用法，可以帮你轻松打造更个性化的 AI 语音助手。

如果本文对你有帮助，欢迎 点赞收藏 备用！

猴哥一直在做 AI 领域的研发和探索，会陆续跟大家分享路上的思考和心得。

最近开始运营一个公众号，旨在分享关于AI效率工具、自媒体副业的一切。用心做内容，不辜负每一份关注。

新朋友欢迎关注 “猴哥的AI知识库” 公众号，下次更新不迷路。

# 人工智能 # python # 语音识别
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