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Update app.py
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from __future__ import annotations
import os
# we need to compile a CUBLAS version
# Or get it from https://jllllll.github.io/llama-cpp-python-cuBLAS-wheels/
os.system('CMAKE_ARGS="-DLLAMA_CUBLAS=on" pip install llama-cpp-python==0.2.11')
# By using XTTS you agree to CPML license https://coqui.ai/cpml
os.environ["COQUI_TOS_AGREED"] = "1"
# NOTE: for streaming will require gradio audio streaming fix
# pip install --upgrade -y gradio==0.50.2 git+https://github.com/gorkemgoknar/gradio.git@patch-1
import textwrap
from scipy.io.wavfile import write
from pydub import AudioSegment
import gradio as gr
import numpy as np
import torch
import nltk # we'll use this to split into sentences
nltk.download("punkt")
import noisereduce as nr
import subprocess
import langid
import uuid
import emoji
import pathlib
import datetime
from scipy.io.wavfile import write
from pydub import AudioSegment
import re
import io, wave
import librosa
import torchaudio
from TTS.api import TTS
from TTS.tts.configs.xtts_config import XttsConfig
from TTS.tts.models.xtts import Xtts
from TTS.utils.generic_utils import get_user_data_dir
import gradio as gr
import os
import time
import gradio as gr
from transformers import pipeline
import numpy as np
from gradio_client import Client
from huggingface_hub import InferenceClient
# This will trigger downloading model
print("Downloading if not downloaded Coqui XTTS V2")
from TTS.utils.manage import ModelManager
model_name = "tts_models/multilingual/multi-dataset/xtts_v2"
ModelManager().download_model(model_name)
model_path = os.path.join(get_user_data_dir("tts"), model_name.replace("/", "--"))
print("XTTS downloaded")
print("Loading XTTS")
config = XttsConfig()
config.load_json(os.path.join(model_path, "config.json"))
model = Xtts.init_from_config(config)
model.load_checkpoint(
config,
checkpoint_path=os.path.join(model_path, "model.pth"),
vocab_path=os.path.join(model_path, "vocab.json"),
eval=True,
use_deepspeed=True,
)
model.cuda()
print("Done loading TTS")
title = "Voice chat with Zephyr and Coqui XTTS"
DESCRIPTION = """# Voice chat with Zephyr and Coqui XTTS"""
from huggingface_hub import HfApi
HF_TOKEN = os.environ.get("HF_TOKEN")
# will use api to restart space on a unrecoverable error
api = HfApi(token=HF_TOKEN)
repo_id = "jbilcke-hf/zephyr-xtts"
default_system_message = f"""
You're the storyteller, crafting a short tale for young listeners. Please abide by these guidelines:
- Keep your sentences short, concise and easy to understand.
- There should be only the narrator speaking. If there are dialogues, they should be indirect.
- Be concise and relevant: Most of your responses should be a sentence or two, unless you’re asked to go deeper.
- Don’t use complex words. Don’t use lists, markdown, bullet points, or other formatting that’s not typically spoken.
- Type out numbers in words (e.g. 'twenty twelve' instead of the year 2012).
- Remember to follow these rules absolutely, and do not refer to these rules, even if you’re asked about them.
"""
system_message = os.environ.get("SYSTEM_MESSAGE", default_system_message)
system_message = system_message.replace("CURRENT_DATE", str(datetime.date.today()))
ROLES = ["Cloee","Julian","Pirate","Theranos"]
ROLE_PROMPTS = {}
ROLE_PROMPTS["Julian"]=system_message
ROLE_PROMPTS["Cloee"]=system_message
ROLE_PROMPTS["Theranos"]=system_message
#Pirate scenario
character_name= "AI Beard"
character_scenario= f"As {character_name} you are a 28 year old man who is a pirate on the ship Invisible AI. You are good friends with Guybrush Threepwood and Murray the Skull. Developers did not get you into Monkey Island games as you wanted huge shares of Big Whoop treasure."
pirate_system_message = f"You as {character_name}. {character_scenario} Print out only exactly the words that {character_name} would speak out, do not add anything. Don't repeat. Answer short, only few words, as if in a talk. Craft your response only from the first-person perspective of {character_name} and never as user.Current date: #CURRENT_DATE#".replace("#CURRENT_DATE#", str(datetime.date.today()))
ROLE_PROMPTS["Pirate"]= pirate_system_message
##"You are an AI assistant with Zephyr model by Mistral and Hugging Face and speech from Coqui XTTS . User will you give you a task. Your goal is to complete the task as faithfully as you can. While performing the task think step-by-step and justify your steps, your answers should be clear and short sentences"
### WILL USE LOCAL MISTRAL OR ZEPHYR
from huggingface_hub import hf_hub_download
print("Downloading LLM")
print("Downloading Zephyr")
#Zephyr
hf_hub_download(repo_id="TheBloke/zephyr-7B-beta-GGUF", local_dir=".", filename="zephyr-7b-beta.Q5_K_M.gguf")
# use new gguf format
zephyr_model_path="./zephyr-7b-beta.Q5_K_M.gguf"
from llama_cpp import Llama
# set GPU_LAYERS to 15 if you have a 8GB GPU so both models can fit in
# else 35 full layers + XTTS works fine on T4 16GB
# 5gb per llm, 4gb XTTS -> full layers should fit T4 16GB , 2LLM + XTTS
GPU_LAYERS=int(os.environ.get("GPU_LAYERS", 35))
LLM_STOP_WORDS= ["</s>","<|user|>","/s>"]
LLAMA_VERBOSE=False
print("Running LLM Zephyr")
llm_zephyr = Llama(model_path=zephyr_model_path,n_gpu_layers=GPU_LAYERS-10,max_new_tokens=256, context_window=4096, n_ctx=4096,n_batch=128,verbose=LLAMA_VERBOSE)
# <|system|>
# You are a friendly chatbot who always responds in the style of a pirate.</s>
# <|user|>
# How many helicopters can a human eat in one sitting?</s>
# <|assistant|>
# Ah, me hearty matey! But yer question be a puzzler! A human cannot eat a helicopter in one sitting, as helicopters are not edible. They be made of metal, plastic, and other materials, not food!
# Zephyr formatter
def format_prompt_zephyr(message, history, system_message=system_message):
prompt = (
"<|system|>\n" + system_message + "</s>"
)
for user_prompt, bot_response in history:
prompt += f"<|user|>\n{user_prompt}</s>"
prompt += f"<|assistant|>\n{bot_response}</s>"
if message=="":
message="Hello"
prompt += f"<|user|>\n{message}</s>"
prompt += f"<|assistant|>"
print(prompt)
return prompt
def generate_local(
prompt,
history,
system_message=None,
temperature=0.8,
max_tokens=256,
top_p=0.95,
stop = LLM_STOP_WORDS
):
temperature = float(temperature)
if temperature < 1e-2:
temperature = 1e-2
top_p = float(top_p)
generate_kwargs = dict(
temperature=temperature,
max_tokens=max_tokens,
top_p=top_p,
stop=stop
)
sys_message= system_message.replace("##LLM_MODEL###","Zephyr").replace("##LLM_MODEL_PROVIDER###","Hugging Face")
formatted_prompt = format_prompt_zephyr(prompt, history,system_message=sys_message)
llm = llm_zephyr
try:
print("LLM Input:", formatted_prompt)
stream = llm(
formatted_prompt,
**generate_kwargs,
stream=True,
)
output = ""
for response in stream:
character= response["choices"][0]["text"]
if "<|user|>" in character:
# end of context
return
if emoji.is_emoji(character):
# Bad emoji not a meaning messes chat from next lines
return
output += response["choices"][0]["text"].replace("<|assistant|>","").replace("<|user|>","")
yield output
except Exception as e:
if "Too Many Requests" in str(e):
print("ERROR: Too many requests on mistral client")
gr.Warning("Unfortunately Mistral is unable to process")
output = "Unfortunately I am not able to process your request now !"
else:
print("Unhandled Exception: ", str(e))
gr.Warning("Unfortunately Mistral is unable to process")
output = "I do not know what happened but I could not understand you ."
return output
def get_latents(speaker_wav,voice_cleanup=False):
if (voice_cleanup):
try:
cleanup_filter="lowpass=8000,highpass=75,areverse,silenceremove=start_periods=1:start_silence=0:start_threshold=0.02,areverse,silenceremove=start_periods=1:start_silence=0:start_threshold=0.02"
resample_filter="-ac 1 -ar 22050"
out_filename = speaker_wav + str(uuid.uuid4()) + ".wav" #ffmpeg to know output format
#we will use newer ffmpeg as that has afftn denoise filter
shell_command = f"ffmpeg -y -i {speaker_wav} -af {cleanup_filter} {resample_filter} {out_filename}".split(" ")
command_result = subprocess.run([item for item in shell_command], capture_output=False,text=True, check=True)
speaker_wav=out_filename
print("Filtered microphone input")
except subprocess.CalledProcessError:
# There was an error - command exited with non-zero code
print("Error: failed filtering, use original microphone input")
else:
speaker_wav=speaker_wav
# create as function as we can populate here with voice cleanup/filtering
(
gpt_cond_latent,
speaker_embedding,
) = model.get_conditioning_latents(audio_path=speaker_wav)
return gpt_cond_latent, speaker_embedding
def wave_header_chunk(frame_input=b"", channels=1, sample_width=2, sample_rate=24000):
# This will create a wave header then append the frame input
# It should be first on a streaming wav file
# Other frames better should not have it (else you will hear some artifacts each chunk start)
wav_buf = io.BytesIO()
with wave.open(wav_buf, "wb") as vfout:
vfout.setnchannels(channels)
vfout.setsampwidth(sample_width)
vfout.setframerate(sample_rate)
vfout.writeframes(frame_input)
wav_buf.seek(0)
return wav_buf.read()
#Config will have more correct languages, they may be added before we append here
##["en","es","fr","de","it","pt","pl","tr","ru","nl","cs","ar","zh-cn","ja"]
xtts_supported_languages=config.languages
def detect_language(prompt):
# Fast language autodetection
if len(prompt)>15:
language_predicted=langid.classify(prompt)[0].strip() # strip need as there is space at end!
if language_predicted == "zh":
#we use zh-cn on xtts
language_predicted = "zh-cn"
if language_predicted not in xtts_supported_languages:
print(f"Detected a language not supported by xtts :{language_predicted}, switching to english for now")
gr.Warning(f"Language detected '{language_predicted}' can not be spoken properly 'yet' ")
language= "en"
else:
language = language_predicted
print(f"Language: Predicted sentence language:{language_predicted} , using language for xtts:{language}")
else:
# Hard to detect language fast in short sentence, use english default
language = "en"
print(f"Language: Prompt is short or autodetect language disabled using english for xtts")
return language
def get_voice_streaming(prompt, language, latent_tuple, suffix="0"):
gpt_cond_latent, speaker_embedding = latent_tuple
try:
t0 = time.time()
chunks = model.inference_stream(
prompt,
language,
gpt_cond_latent,
speaker_embedding,
#repetition_penalty=5.0,
temperature=0.85,
)
first_chunk = True
for i, chunk in enumerate(chunks):
if first_chunk:
first_chunk_time = time.time() - t0
metrics_text = f"Latency to first audio chunk: {round(first_chunk_time*1000)} milliseconds\n"
first_chunk = False
#print(f"Received chunk {i} of audio length {chunk.shape[-1]}")
# directly return chunk as bytes for streaming
chunk = chunk.detach().cpu().numpy().squeeze()
chunk = (chunk * 32767).astype(np.int16)
yield chunk.tobytes()
except RuntimeError as e:
if "device-side assert" in str(e):
# cannot do anything on cuda device side error, need tor estart
print(
f"Exit due to: Unrecoverable exception caused by prompt:{prompt}",
flush=True,
)
gr.Warning("Unhandled Exception encounter, please retry in a minute")
print("Cuda device-assert Runtime encountered need restart")
# HF Space specific.. This error is unrecoverable need to restart space
api.restart_space(repo_id=repo_id)
else:
print("RuntimeError: non device-side assert error:", str(e))
# Does not require warning happens on empty chunk and at end
###gr.Warning("Unhandled Exception encounter, please retry in a minute")
return None
return None
except:
return None
# Will be triggered on text submit (will send to generate_speech)
def add_text(history, text):
history = [] if history is None else history
history = history + [(text, None)]
return history, gr.update(value="", interactive=False)
# Will be triggered on voice submit (will transribe and send to generate_speech)
def add_file(history, file):
history = [] if history is None else history
try:
text = transcribe(file)
print("Transcribed text:", text)
except Exception as e:
print(str(e))
gr.Warning("There was an issue with transcription, please try writing for now")
# Apply a null text on error
text = "Transcription seems failed, please tell me a joke about chickens"
history = history + [(text, None)]
return history, gr.update(value="", interactive=False)
def get_sentence(history, chatbot_role):
history = [["", None]] if history is None else history
history[-1][1] = ""
sentence_list = []
sentence_hash_list = []
text_to_generate = ""
stored_sentence = None
stored_sentence_hash = None
print(chatbot_role)
for character in generate_local(history[-1][0], history[:-1], system_message=ROLE_PROMPTS[chatbot_role]):
history[-1][1] = character.replace("<|assistant|>","")
# It is coming word by word
text_to_generate = nltk.sent_tokenize(history[-1][1].replace("\n", " ").replace("<|assistant|>"," ").replace("<|ass>","").replace("[/ASST]","").replace("[/ASSI]","").replace("[/ASS]","").replace("","").strip())
if len(text_to_generate) > 1:
dif = len(text_to_generate) - len(sentence_list)
if dif == 1 and len(sentence_list) != 0:
continue
if dif == 2 and len(sentence_list) != 0 and stored_sentence is not None:
continue
# All this complexity due to trying append first short sentence to next one for proper language auto-detect
if stored_sentence is not None and stored_sentence_hash is None and dif>1:
#means we consumed stored sentence and should look at next sentence to generate
sentence = text_to_generate[len(sentence_list)+1]
elif stored_sentence is not None and len(text_to_generate)>2 and stored_sentence_hash is not None:
print("Appending stored")
sentence = stored_sentence + text_to_generate[len(sentence_list)+1]
stored_sentence_hash = None
else:
sentence = text_to_generate[len(sentence_list)]
# too short sentence just append to next one if there is any
# this is for proper language detection
if len(sentence)<=15 and stored_sentence_hash is None and stored_sentence is None:
if sentence[-1] in [".","!","?"]:
if stored_sentence_hash != hash(sentence):
stored_sentence = sentence
stored_sentence_hash = hash(sentence)
print("Storing:",stored_sentence)
continue
sentence_hash = hash(sentence)
if stored_sentence_hash is not None and sentence_hash == stored_sentence_hash:
continue
if sentence_hash not in sentence_hash_list:
sentence_hash_list.append(sentence_hash)
sentence_list.append(sentence)
print("New Sentence: ", sentence)
yield (sentence, history)
# return that final sentence token
try:
last_sentence = nltk.sent_tokenize(history[-1][1].replace("\n", " ").replace("<|ass>","").replace("[/ASST]","").replace("[/ASSI]","").replace("[/ASS]","").replace("","").strip())[-1]
sentence_hash = hash(last_sentence)
if sentence_hash not in sentence_hash_list:
if stored_sentence is not None and stored_sentence_hash is not None:
last_sentence = stored_sentence + last_sentence
stored_sentence = stored_sentence_hash = None
print("Last Sentence with stored:",last_sentence)
sentence_hash_list.append(sentence_hash)
sentence_list.append(last_sentence)
print("Last Sentence: ", last_sentence)
yield (last_sentence, history)
except:
print("ERROR on last sentence history is :", history)
from scipy.io.wavfile import write
from pydub import AudioSegment
second_of_silence = AudioSegment.silent() # use default
second_of_silence.export("sil.wav", format='wav')
def generate_speech(history,chatbot_role):
# Must set autoplay to True first
yield (history, chatbot_role, "", wave_header_chunk() )
for sentence, history in get_sentence(history,chatbot_role):
if sentence != "":
print("BG: inserting sentence to queue")
generated_speech = generate_speech_for_sentence(history, chatbot_role, sentence,return_as_byte=True)
if generated_speech is not None:
_, audio_dict = generated_speech
# We are using byte streaming
yield (history, chatbot_role, sentence, audio_dict["value"] )
# will generate speech audio file per sentence
def generate_speech_for_sentence(history, chatbot_role, sentence, return_as_byte=False):
language = "autodetect"
wav_bytestream = b""
if len(sentence)==0:
print("EMPTY SENTENCE")
return
# Sometimes prompt </s> coming on output remove it
# Some post process for speech only
sentence = sentence.replace("</s>", "")
# remove code from speech
sentence = re.sub("```.*```", "", sentence, flags=re.DOTALL)
sentence = re.sub("`.*`", "", sentence, flags=re.DOTALL)
sentence = re.sub("\(.*\)", "", sentence, flags=re.DOTALL)
sentence = sentence.replace("```", "")
sentence = sentence.replace("...", " ")
sentence = sentence.replace("(", " ")
sentence = sentence.replace(")", " ")
sentence = sentence.replace("<|assistant|>","")
if len(sentence)==0:
print("EMPTY SENTENCE after processing")
return
# A fast fix for last character, may produce weird sounds if it is with text
#if (sentence[-1] in ["!", "?", ".", ","]) or (sentence[-2] in ["!", "?", ".", ","]):
# # just add a space
# sentence = sentence[:-1] + " " + sentence[-1]
# regex does the job well
sentence= re.sub("([^\x00-\x7F]|\w)(\.|\。|\?|\!)",r"\1 \2\2",sentence)
print("Sentence for speech:", sentence)
try:
SENTENCE_SPLIT_LENGTH=350
if len(sentence)<SENTENCE_SPLIT_LENGTH:
# no problem continue on
sentence_list = [sentence]
else:
# Until now nltk likely split sentences properly but we need additional
# check for longer sentence and split at last possible position
# Do whatever necessary, first break at hypens then spaces and then even split very long words
sentence_list=textwrap.wrap(sentence,SENTENCE_SPLIT_LENGTH)
print("SPLITTED LONG SENTENCE:",sentence_list)
for sentence in sentence_list:
if any(c.isalnum() for c in sentence):
if language=="autodetect":
#on first call autodetect, nexts sentence calls will use same language
language = detect_language(sentence)
#exists at least 1 alphanumeric (utf-8)
audio_stream = get_voice_streaming(
sentence, language, latent_map[chatbot_role]
)
else:
# likely got a ' or " or some other text without alphanumeric in it
audio_stream = None
# XTTS is actually using streaming response but we are playing audio by sentence
# If you want direct XTTS voice streaming (send each chunk to voice ) you may set DIRECT_STREAM=1 environment variable
if audio_stream is not None:
frame_length = 0
for chunk in audio_stream:
try:
wav_bytestream += chunk
frame_length += len(chunk)
except:
# hack to continue on playing. sometimes last chunk is empty , will be fixed on next TTS
continue
# Filter output for better voice
filter_output=True
if filter_output:
data_s16 = np.frombuffer(wav_bytestream, dtype=np.int16, count=len(wav_bytestream)//2, offset=0)
float_data = data_s16 * 0.5**15
reduced_noise = nr.reduce_noise(y=float_data, sr=24000,prop_decrease =0.8,n_fft=1024)
wav_bytestream = (reduced_noise * 32767).astype(np.int16)
wav_bytestream = wav_bytestream.tobytes()
if audio_stream is not None:
if not return_as_byte:
audio_unique_filename = "/tmp/"+ str(uuid.uuid4())+".wav"
with wave.open(audio_unique_filename, "w") as f:
f.setnchannels(1)
# 2 bytes per sample.
f.setsampwidth(2)
f.setframerate(24000)
f.writeframes(wav_bytestream)
return (history , gr.Audio.update(value=audio_unique_filename, autoplay=True))
else:
return (history , gr.Audio.update(value=wav_bytestream, autoplay=True))
except RuntimeError as e:
if "device-side assert" in str(e):
# cannot do anything on cuda device side error, need tor estart
print(
f"Exit due to: Unrecoverable exception caused by prompt:{sentence}",
flush=True,
)
gr.Warning("Unhandled Exception encounter, please retry in a minute")
print("Cuda device-assert Runtime encountered need restart")
# HF Space specific.. This error is unrecoverable need to restart space
api.restart_space(repo_id=repo_id)
else:
print("RuntimeError: non device-side assert error:", str(e))
raise e
print("All speech ended")
return
latent_map = {}
latent_map["Cloee"] = get_latents("voices/cloee-1.wav")
latent_map["Julian"] = get_latents("voices/julian-bedtime-style-1.wav")
latent_map["Pirate"] = get_latents("voices/pirate_by_coqui.wav")
latent_map["Theranos"] = get_latents("voices/theranos-1.wav")
#### GRADIO INTERFACE ####
with gr.Blocks(title=title) as demo:
chatbot = gr.Chatbot(
[],
elem_id="chatbot",
bubble_full_width=False,
)
chatbot_role = gr.Dropdown(
label="Role of the Chatbot",
info="How should Chatbot talk like",
choices=ROLES,
max_choices=1,
value=ROLES[0],
)
txt = gr.Textbox(
scale=3,
show_label=False,
placeholder="Enter text and press enter, or speak to your microphone",
container=False,
interactive=True,
)
txt_btn = gr.Button(value="Submit text", scale=1)
with gr.Row():
sentence = gr.Textbox(visible=False)
audio = gr.Audio(
value=None,
label="Generated audio response",
streaming=True,
autoplay=True,
interactive=False,
show_label=True,
)
def clear_inputs(chatbot):
return None
clear_btn = gr.ClearButton([chatbot, audio])
chatbot_role.change(fn=clear_inputs, inputs=[chatbot], outputs=[chatbot])
txt_msg = txt_btn.click(add_text, [chatbot, txt], [chatbot, txt], queue=False).then(
generate_speech, [chatbot,chatbot_role], [chatbot,chatbot_role, sentence, audio]
)
txt_msg.then(lambda: gr.update(interactive=True), None, [txt], queue=False)
txt_msg = txt.submit(add_text, [chatbot, txt], [chatbot, txt], queue=False).then(
generate_speech, [chatbot,chatbot_role], [chatbot,chatbot_role, sentence, audio]
)
txt_msg.then(lambda: gr.update(interactive=True), None, [txt], queue=False)
demo.queue()
demo.launch(debug=True)