Support for Eleven Labs TTS

As per your suggestion at https://github.com/oobabooga/text-generation-webui/issues/159 here's my attempt.

I'm brand new to python and github. Completely different from unreal + visual coding, so forgive my amateurish code. This essentially adds support for Eleven Labs TTS. Tested it without major issues, and I believe it's functional (hopefully).

Extra requirements: elevenlabslib https://github.com/lugia19/elevenlabslib, sounddevice0.4.6, and soundfile

Folder structure is the same as the SileroTTS Extension.

extensions/silero_tts/script.py

@@ -3,26 +3,55 @@ from pathlib import Path
 
 import gradio as gr
 import torch
+import io
+import json
+import os
 
-torch._C._jit_set_profiling_mode(False)
+import requests
+
+from elevenlabslib.helpers import *
+from elevenlabslib import *
 
 params = {
     'activate': True,
-    'speaker': 'en_56',
-    'language': 'en',
-    'model_id': 'v3_en',
-    'sample_rate': 48000,
-    'device': 'cpu',
+    'api_key': '12345',
+    'selected_voice': 'None',
 }
-current_params = params.copy()
-voices_by_gender = ['en_99', 'en_45', 'en_18', 'en_117', 'en_49', 'en_51', 'en_68', 'en_0', 'en_26', 'en_56', 'en_74', 'en_5', 'en_38', 'en_53', 'en_21', 'en_37', 'en_107', 'en_10', 'en_82', 'en_16', 'en_41', 'en_12', 'en_67', 'en_61', 'en_14', 'en_11', 'en_39', 'en_52', 'en_24', 'en_97', 'en_28', 'en_72', 'en_94', 'en_36', 'en_4', 'en_43', 'en_88', 'en_25', 'en_65', 'en_6', 'en_44', 'en_75', 'en_91', 'en_60', 'en_109', 'en_85', 'en_101', 'en_108', 'en_50', 'en_96', 'en_64', 'en_92', 'en_76', 'en_33', 'en_116', 'en_48', 'en_98', 'en_86', 'en_62', 'en_54', 'en_95', 'en_55', 'en_111', 'en_3', 'en_83', 'en_8', 'en_47', 'en_59', 'en_1', 'en_2', 'en_7', 'en_9', 'en_13', 'en_15', 'en_17', 'en_19', 'en_20', 'en_22', 'en_23', 'en_27', 'en_29', 'en_30', 'en_31', 'en_32', 'en_34', 'en_35', 'en_40', 'en_42', 'en_46', 'en_57', 'en_58', 'en_63', 'en_66', 'en_69', 'en_70', 'en_71', 'en_73', 'en_77', 'en_78', 'en_79', 'en_80', 'en_81', 'en_84', 'en_87', 'en_89', 'en_90', 'en_93', 'en_100', 'en_102', 'en_103', 'en_104', 'en_105', 'en_106', 'en_110', 'en_112', 'en_113', 'en_114', 'en_115']
+initial_voice = ['None']
 wav_idx = 0
+user = ElevenLabsUser(params['api_key'])
+user_info = None
+
 
-def load_model():
-    model, example_text = torch.hub.load(repo_or_dir='snakers4/silero-models', model='silero_tts', language=params['language'], speaker=params['model_id'])
-    model.to(params['device'])
-    return model
-model = load_model()
+"Check if the API is valid and refresh the UI accordingly."
+def check_valid_api():
+    
+    global user, user_info, params
+
+    user = ElevenLabsUser(params['api_key'])
+    user_info = user._get_subscription_data()
+    print('checking api')
+    if params['activate'] == False:
+        return gr.update(value='Disconnected')
+    elif user_info is None:
+        print('Incorrect API Key')
+        return gr.update(value='Disconnected')
+    else:
+        print('Got an API Key!')
+        return gr.update(value='Connected')
+    
+"Once the API is verified, get the available voices and update the dropdown list"    
+def refresh_voices():
+    
+    global user, user_info
+    
+    your_voices = [None]
+    if user_info is not None:
+        for voice in user.get_available_voices():
+            your_voices.append(voice.initialName)
+        return  gr.Dropdown.update(choices=your_voices)
+    else:
+        return
 
 def remove_surrounded_chars(string):
     new_string = ""
@@ -46,17 +75,12 @@ def output_modifier(string):
     """
     This function is applied to the model outputs.
     """
-
-    global wav_idx, model, current_params
-
-    for i in params:
-        if params[i] != current_params[i]:
-            model = load_model()
-            current_params = params.copy()
-            break
-
+    global params, wav_idx, user, user_info
+    
     if params['activate'] == False:
         return string
+    elif user_info == None:
+        return string
 
     string = remove_surrounded_chars(string)
     string = string.replace('"', '')
@@ -66,29 +90,31 @@ def output_modifier(string):
 
     if string == '':
         string = 'empty reply, try regenerating'
+        
+    output_file = Path('extensions/elevenlabs_tts/outputs/{}.wav'.format(wav_idx))
+    voice = user.get_voices_by_name(params['selected_voice'])[0]
+    audio_data = voice.generate_audio_bytes(string)
+    save_bytes_to_path("extensions/elevenlabs_tts/outputs/{}.wav".format(wav_idx), audio_data)
 
-    output_file = Path(f'extensions/silero_tts/outputs/{wav_idx:06d}.wav')
-    audio = model.save_wav(text=string, speaker=params['speaker'], sample_rate=int(params['sample_rate']), audio_path=str(output_file))
 
     string = f'<audio src="file/{output_file.as_posix()}" controls></audio>'
     wav_idx += 1
-
     return string
 
-def bot_prefix_modifier(string):
-    """
-    This function is only applied in chat mode. It modifies
-    the prefix text for the Bot and can be used to bias its
-    behavior.
-    """
-
-    return string
 
 def ui():
     # Gradio elements
-    activate = gr.Checkbox(value=params['activate'], label='Activate TTS')
-    voice = gr.Dropdown(value=params['speaker'], choices=voices_by_gender, label='TTS voice')
-
+    with gr.Row():
+        activate = gr.Checkbox(value=params['activate'], label='Activate TTS')
+        connection_status = gr.Textbox(value='Disconnected', label='Connection Status')
+    voice = gr.Dropdown(value=params['selected_voice'], choices=initial_voice, label='TTS Voice')
+    with gr.Row():
+        api_key = gr.Textbox(placeholder="Enter your API key.", label='API Key')
+        connect = gr.Button(value='Connect')
     # Event functions to update the parameters in the backend
-    activate.change(lambda x: params.update({"activate": x}), activate, None)
-    voice.change(lambda x: params.update({"speaker": x}), voice, None)
+    activate.change(lambda x: params.update({'activate': x}), activate, None)
+    voice.change(lambda x: params.update({'selected_voice': x}), voice, None)
+    api_key.change(lambda x: params.update({'api_key': x}), api_key, None)
+    connect.click(check_valid_api, [], connection_status)
+    connect.click(refresh_voices, [], voice)
+