Merge in audio generation only on text stream finish., postpone audioblock autoplay

- Keeping simpleaudio until audio block "autoplay" doesn't play previous messages
- Only generate audio for finished messages
- Better name for autoplay, clean up comments
- set default to unlimited wav files. Still a few bugs when wav id resets

Co-Authored-By: Christoph Hess <9931495+ChristophHess@users.noreply.github.com>

extensions/silero_tts/script.py

@@ -15,14 +15,15 @@ params = {
     'model_id': 'v3_en',
     'sample_rate': 48000,
     'device': 'cpu',
-    'max_wavs': 20,
-    'play_audio': True,
+    'max_wavs': -1,
+    'autoplay': True,
     'show_text': True,
 }
 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']
 wav_idx = 0
 
+#Used for making text xml compatible, needed for voice pitch and speed control
 table = str.maketrans({
     "<": "&lt;",
     ">": "&gt;",
@@ -88,27 +89,32 @@ def output_modifier(string):
 
     #x-slow, slow, medium, fast, x-fast
     #x-low, low, medium, high, x-high
-    #prosody='<prosody rate="fast" pitch="medium">'
-    prosody='<prosody rate="fast">'
+    prosody='<prosody rate="medium" pitch="medium">'
     string ='<speak>'+prosody+xmlesc(string)+'</prosody></speak>'
         
     output_file = Path(f'extensions/silero_tts/outputs/{wav_idx:06d}.wav')
-    model.save_wav(ssml_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>'
+    autoplay_str = ''
+    if not shared.still_streaming:
+        model.save_wav(ssml_text=string, speaker=params['speaker'], sample_rate=int(params['sample_rate']), audio_path=str(output_file))
+        #diabled until autoplay doesn't run on previous messages
+        #autoplay = 'autoplay' if (params['autoplay'] and auto_playable) else ''
+        string = f'<audio src="file/{output_file.as_posix()}" controls {autoplay_str}></audio>\n\n'
+    else:
+        #placeholder so text doesnt shift around so much
+        string =f'<audio controls {autoplay_str}></audio>\n\n'
     
     #reset if too many wavs. set max to -1 for unlimited.
     if wav_idx < params['max_wavs'] or params['max_wavs'] < 0:
-        #only increment if starting a new stream, else replace during streaming. Does not update duration on webui sometimes?
+        #only increment if starting a new stream, else replace during streaming.
         if not shared.still_streaming:
             wav_idx += 1
     else:
         wav_idx = 0
 
     if params['show_text']:
-        string+='\n\n'+orig_string
+        string+=orig_string
 
-    #if params['play_audio'] == True and auto_playable and shared.stop_everything:
-    if params['play_audio'] == True and auto_playable and not shared.still_streaming:
+    if params['autoplay'] == True and auto_playable and not shared.still_streaming:
         stop_autoplay()
         wave_obj = sa.WaveObject.from_wave_file(output_file.as_posix())
         wave_obj.play()
@@ -131,13 +137,13 @@ def ui():
     # Gradio elements
     activate = gr.Checkbox(value=params['activate'], label='Activate TTS')
     show_text = gr.Checkbox(value=params['show_text'], label='Show message text under audio player')
-    play_audio = gr.Checkbox(value=params['play_audio'], label='Play TTS automatically')
+    autoplay = gr.Checkbox(value=params['autoplay'], label='Play TTS automatically')
     stop_audio = gr.Button("Stop Auto-Play")
     voice = gr.Dropdown(value=params['speaker'], choices=voices_by_gender, label='TTS voice')
 
     # Event functions to update the parameters in the backend
     activate.change(lambda x: params.update({"activate": x}), activate, None)
-    play_audio.change(lambda x: params.update({"play_audio": x}), play_audio, None)
+    autoplay.change(lambda x: params.update({"autoplay": x}), autoplay, None)
     show_text.change(lambda x: params.update({"show_text": x}), show_text, None)
     stop_audio.click(stop_autoplay)
     voice.change(lambda x: params.update({"speaker": x}), voice, None)