Error running manim voice over examples

[brasilJ]

Preliminaries

• I have followed the latest version of the
  installation instructions.

Description of error

My manim voice over started to throw this error all of a sudden:

JSONDecodeError: Invalid control character at line 4906 column 19 (char 147456)

Initially, it was working fine, but at some point, it started to raise that error. I have reinstalled the package and tried to run the examples on the repo but without success.

[02/11/23 10:20:15] ERROR module_ops.py:90
whatIsAVector is not in the script

╭─────────────────────────────── Traceback (most recent call last) ────────────────────────────────╮
│ /Users/jorgebrasil/PycharmProjects/manim/venv/lib/python3.9/site-packages/manim/cli/render/comma │
│ nds.py:115 in render │
│ │
│ 112 │ │ │ try: │
│ 113 │ │ │ │ with tempconfig({}): │
│ 114 │ │ │ │ │ scene = SceneClass() │
│ ❱ 115 │ │ │ │ │ scene.render() │
│ 116 │ │ │ except Exception: │
│ 117 │ │ │ │ error_console.print_exception() │
│ 118 │ │ │ │ sys.exit(1) │
│ │
│ /Users/jorgebrasil/PycharmProjects/manim/venv/lib/python3.9/site-packages/manim/scene/scene.py:2 │
│ 23 in render │
│ │
│ 220 │ │ """ │
│ 221 │ │ self.setup() │
│ 222 │ │ try: │
│ ❱ 223 │ │ │ self.construct() │
│ 224 │ │ except EndSceneEarlyException: │
│ 225 │ │ │ pass │
│ 226 │ │ except RerunSceneException as e: │
│ │
│ /Users/jorgebrasil/PycharmProjects/manim/main.py:21 in construct │
│ │
│ 18 │ │ │
│ 19 │ │ question = Text("What is a vector ?", weight=BOLD, color='ORANGE') │
│ 20 │ │ │
│ ❱ 21 │ │ with self.voiceover(text="""You can think of a vector in simple terms as a list │
│ 22 │ │ │ │ │ │ each item in this structure matters. │
│ 23 │ │ │ │ │ │ In machine learning, this will often be the case.""") as trac │
│ 24 │ │ │ self.play(Write(question)) │
│ │
│ /opt/homebrew/Caskroom/miniforge/base/lib/python3.9/contextlib.py:119 in enter │
│ │
│ 116 │ │ # they are only needed for recreation, which is not possible anymore │
│ 117 │ │ del self.args, self.kwds, self.func │
│ 118 │ │ try: │
│ ❱ 119 │ │ │ return next(self.gen) │
│ 120 │ │ except StopIteration: │
│ 121 │ │ │ raise RuntimeError("generator didn't yield") from None │
│ 122 │
│ │
│ /Users/jorgebrasil/PycharmProjects/manim/venv/lib/python3.9/site-packages/manim_voiceover/voiceo │
│ ver_scene.py:180 in voiceover │
│ │
│ 177 │ │ │
│ 178 │ │ try: │
│ 179 │ │ │ if text is not None: │
│ ❱ 180 │ │ │ │ yield self.add_voiceover_text(text, **kwargs) │
│ 181 │ │ │ elif ssml is not None: │
│ 182 │ │ │ │ yield self.add_voiceover_ssml(ssml, **kwargs) │
│ 183 │ │ finally: │
│ │
│ /Users/jorgebrasil/PycharmProjects/manim/venv/lib/python3.9/site-packages/manim_voiceover/voiceo │
│ ver_scene.py:63 in add_voiceover_text │
│ │
│ 60 │ │ │ │ "You need to call init_voiceover() before adding a voiceover." │
│ 61 │ │ │ ) │
│ 62 │ │ │
│ ❱ 63 │ │ dict_ = self.speech_service.wrap_generate_from_text(text, **kwargs) │
│ 64 │ │ tracker = VoiceoverTracker(self, dict, self.speech_service.cache_dir) │
│ 65 │ │ self.add_sound(str(Path(self.speech_service.cache_dir) / dict_["final_audio"])) │
│ 66 │ │ self.current_tracker = tracker │
│ │
│ /Users/jorgebrasil/PycharmProjects/manim/venv/lib/python3.9/site-packages/manim_voiceover/servic │
│ es/base.py:85 in wrap_generate_from_text │
│ │
│ 82 │ │ # Replace newlines with lines, reduce multiple consecutive spaces to single │
│ 83 │ │ text = " ".join(text.split()) │
│ 84 │ │ │
│ ❱ 85 │ │ dict = self.generate_from_text(text, cache_dir=None, path=path, **kwargs) │
│ 86 │ │ original_audio = dict_["original_audio"] │
│ 87 │ │ │
│ 88 │ │ # Check whether word boundaries exist and if not run stt │
│ │
│ /Users/jorgebrasil/PycharmProjects/manim/venv/lib/python3.9/site-packages/manim_voiceover/servic │
│ es/azure.py:135 in generate_from_text │
│ │
│ 132 │ │ │ }, │
│ 133 │ │ } │
│ 134 │ │ │
│ ❱ 135 │ │ cached_result = self.get_cached_result(input_data, cache_dir) │
│ 136 │ │ if cached_result is not None: │
│ 137 │ │ │ return cached_result │
│ 138 │
│ │
│ /Users/jorgebrasil/PycharmProjects/manim/venv/lib/python3.9/site-packages/manim_voiceover/servic │
│ es/base.py:166 in get_cached_result │
│ │
│ 163 │ def get_cached_result(self, input_data, cache_dir): │
│ 164 │ │ json_path = os.path.join(cache_dir / DEFAULT_VOICEOVER_CACHE_JSON_FILENAME) │
│ 165 │ │ if os.path.exists(json_path): │
│ ❱ 166 │ │ │ json_data = json.load(open(json_path, "r")) │
│ 167 │ │ │ for entry in json_data: │
│ 168 │ │ │ │ if entry["input_data"] == input_data: │
│ 169 │ │ │ │ │ return entry │
│ │
│ /opt/homebrew/Caskroom/miniforge/base/lib/python3.9/json/init.py:293 in load │
│ │
│ 290 │ To use a custom JSONDecoder subclass, specify it with the cls │
│ 291 │ kwarg; otherwise JSONDecoder is used. │
│ 292 │ """ │
│ ❱ 293 │ return loads(fp.read(), │
│ 294 │ │ cls=cls, object_hook=object_hook, │
│ 295 │ │ parse_float=parse_float, parse_int=parse_int, │
│ 296 │ │ parse_constant=parse_constant, object_pairs_hook=object_pairs_hook, **kw) │
│ │
│ /opt/homebrew/Caskroom/miniforge/base/lib/python3.9/json/init.py:346 in loads │
│ │
│ 343 │ if (cls is None and object_hook is None and │
│ 344 │ │ │ parse_int is None and parse_float is None and │
│ 345 │ │ │ parse_constant is None and object_pairs_hook is None and not kw): │
│ ❱ 346 │ │ return _default_decoder.decode(s) │
│ 347 │ if cls is None: │
│ 348 │ │ cls = JSONDecoder │
│ 349 │ if object_hook is not None: │
│ │
│ /opt/homebrew/Caskroom/miniforge/base/lib/python3.9/json/decoder.py:337 in decode │
│ │
│ 334 │ │ containing a JSON document). │
│ 335 │ │ │
│ 336 │ │ """ │
│ ❱ 337 │ │ obj, end = self.raw_decode(s, idx=_w(s, 0).end()) │
│ 338 │ │ end = _w(s, end).end() │
│ 339 │ │ if end != len(s): │
│ 340 │ │ │ raise JSONDecodeError("Extra data", s, end) │
│ │
│ /opt/homebrew/Caskroom/miniforge/base/lib/python3.9/json/decoder.py:353 in raw_decode │
│ │
│ 350 │ │ │
│ 351 │ │ """ │
│ 352 │ │ try: │
│ ❱ 353 │ │ │ obj, end = self.scan_once(s, idx) │
│ 354 │ │ except StopIteration as err: │
│ 355 │ │ │ raise JSONDecodeError("Expecting value", s, err.value) from None │
│ 356 │ │ return obj, end │
╰──────────────────────────────────────────────────────────────────────────────────────────────────╯
JSONDecodeError: Invalid control character at: line 4906 column 19 (char 147456)
(venv) (base) jorgebrasil@jorges-air manim % manim -pql --disable_caching main.py GTTSExample
Manim Community v0.17.2

[02/11/23 10:22:00] ERROR module_ops.py:90
GTTSExample is not in the script

╭─────────────────────────────── Traceback (most recent call last) ────────────────────────────────╮
│ /Users/jorgebrasil/PycharmProjects/manim/venv/lib/python3.9/site-packages/manim/cli/render/comma │
│ nds.py:115 in render │
│ │
│ 112 │ │ │ try: │
│ 113 │ │ │ │ with tempconfig({}): │
│ 114 │ │ │ │ │ scene = SceneClass() │
│ ❱ 115 │ │ │ │ │ scene.render() │
│ 116 │ │ │ except Exception: │
│ 117 │ │ │ │ error_console.print_exception() │
│ 118 │ │ │ │ sys.exit(1) │
│ │
│ /Users/jorgebrasil/PycharmProjects/manim/venv/lib/python3.9/site-packages/manim/scene/scene.py:2 │
│ 23 in render │
│ │
│ 220 │ │ """ │
│ 221 │ │ self.setup() │
│ 222 │ │ try: │
│ ❱ 223 │ │ │ self.construct() │
│ 224 │ │ except EndSceneEarlyException: │
│ 225 │ │ │ pass │
│ 226 │ │ except RerunSceneException as e: │
│ │
│ /Users/jorgebrasil/PycharmProjects/manim/main.py:21 in construct │
│ │
│ 18 │ │ │
│ 19 │ │ question = Text("What is a vector ?", weight=BOLD, color='ORANGE') │
│ 20 │ │ │
│ ❱ 21 │ │ with self.voiceover(text="""You can think of a vector in simple terms as a list │
│ 22 │ │ │ │ │ │ each item in this structure matters. │
│ 23 │ │ │ │ │ │ In machine learning, this will often be the case.""") as trac │
│ 24 │ │ │ self.play(Write(question)) │
│ │
│ /opt/homebrew/Caskroom/miniforge/base/lib/python3.9/contextlib.py:119 in enter │
│ │
│ 116 │ │ # they are only needed for recreation, which is not possible anymore │
│ 117 │ │ del self.args, self.kwds, self.func │
│ 118 │ │ try: │
│ ❱ 119 │ │ │ return next(self.gen) │
│ 120 │ │ except StopIteration: │
│ 121 │ │ │ raise RuntimeError("generator didn't yield") from None │
│ 122 │
│ │
│ /Users/jorgebrasil/PycharmProjects/manim/venv/lib/python3.9/site-packages/manim_voiceover/voiceo │
│ ver_scene.py:180 in voiceover │
│ │
│ 177 │ │ │
│ 178 │ │ try: │
│ 179 │ │ │ if text is not None: │
│ ❱ 180 │ │ │ │ yield self.add_voiceover_text(text, **kwargs) │
│ 181 │ │ │ elif ssml is not None: │
│ 182 │ │ │ │ yield self.add_voiceover_ssml(ssml, **kwargs) │
│ 183 │ │ finally: │
│ │
│ /Users/jorgebrasil/PycharmProjects/manim/venv/lib/python3.9/site-packages/manim_voiceover/voiceo │
│ ver_scene.py:63 in add_voiceover_text │
│ │
│ 60 │ │ │ │ "You need to call init_voiceover() before adding a voiceover." │
│ 61 │ │ │ ) │
│ 62 │ │ │
│ ❱ 63 │ │ dict_ = self.speech_service.wrap_generate_from_text(text, **kwargs) │
│ 64 │ │ tracker = VoiceoverTracker(self, dict, self.speech_service.cache_dir) │
│ 65 │ │ self.add_sound(str(Path(self.speech_service.cache_dir) / dict_["final_audio"])) │
│ 66 │ │ self.current_tracker = tracker │
│ │
│ /Users/jorgebrasil/PycharmProjects/manim/venv/lib/python3.9/site-packages/manim_voiceover/servic │
│ es/base.py:85 in wrap_generate_from_text │
│ │
│ 82 │ │ # Replace newlines with lines, reduce multiple consecutive spaces to single │
│ 83 │ │ text = " ".join(text.split()) │
│ 84 │ │ │
│ ❱ 85 │ │ dict = self.generate_from_text(text, cache_dir=None, path=path, **kwargs) │
│ 86 │ │ original_audio = dict_["original_audio"] │
│ 87 │ │ │
│ 88 │ │ # Check whether word boundaries exist and if not run stt │
│ │
│ /Users/jorgebrasil/PycharmProjects/manim/venv/lib/python3.9/site-packages/manim_voiceover/servic │
│ es/azure.py:135 in generate_from_text │
│ │
│ 132 │ │ │ }, │
│ 133 │ │ } │
│ 134 │ │ │
│ ❱ 135 │ │ cached_result = self.get_cached_result(input_data, cache_dir) │
│ 136 │ │ if cached_result is not None: │
│ 137 │ │ │ return cached_result │
│ 138 │
│ │
│ /Users/jorgebrasil/PycharmProjects/manim/venv/lib/python3.9/site-packages/manim_voiceover/servic │
│ es/base.py:166 in get_cached_result │
│ │
│ 163 │ def get_cached_result(self, input_data, cache_dir): │
│ 164 │ │ json_path = os.path.join(cache_dir / DEFAULT_VOICEOVER_CACHE_JSON_FILENAME) │
│ 165 │ │ if os.path.exists(json_path): │
│ ❱ 166 │ │ │ json_data = json.load(open(json_path, "r")) │
│ 167 │ │ │ for entry in json_data: │
│ 168 │ │ │ │ if entry["input_data"] == input_data: │
│ 169 │ │ │ │ │ return entry │
│ │
│ /opt/homebrew/Caskroom/miniforge/base/lib/python3.9/json/init.py:293 in load │
│ │
│ 290 │ To use a custom JSONDecoder subclass, specify it with the cls │
│ 291 │ kwarg; otherwise JSONDecoder is used. │
│ 292 │ """ │
│ ❱ 293 │ return loads(fp.read(), │
│ 294 │ │ cls=cls, object_hook=object_hook, │
│ 295 │ │ parse_float=parse_float, parse_int=parse_int, │
│ 296 │ │ parse_constant=parse_constant, object_pairs_hook=object_pairs_hook, **kw) │
│ │
│ /opt/homebrew/Caskroom/miniforge/base/lib/python3.9/json/init.py:346 in loads │
│ │
│ 343 │ if (cls is None and object_hook is None and │
│ 344 │ │ │ parse_int is None and parse_float is None and │
│ 345 │ │ │ parse_constant is None and object_pairs_hook is None and not kw): │
│ ❱ 346 │ │ return _default_decoder.decode(s) │
│ 347 │ if cls is None: │
│ 348 │ │ cls = JSONDecoder │
│ 349 │ if object_hook is not None: │
│ │
│ /opt/homebrew/Caskroom/miniforge/base/lib/python3.9/json/decoder.py:337 in decode │
│ │
│ 334 │ │ containing a JSON document). │
│ 335 │ │ │
│ 336 │ │ """ │
│ ❱ 337 │ │ obj, end = self.raw_decode(s, idx=_w(s, 0).end()) │
│ 338 │ │ end = _w(s, end).end() │
│ 339 │ │ if end != len(s): │
│ 340 │ │ │ raise JSONDecodeError("Extra data", s, end) │
│ │
│ /opt/homebrew/Caskroom/miniforge/base/lib/python3.9/json/decoder.py:353 in raw_decode │
│ │
│ 350 │ │ │
│ 351 │ │ """ │
│ 352 │ │ try: │
│ ❱ 353 │ │ │ obj, end = self.scan_once(s, idx) │
│ 354 │ │ except StopIteration as err: │
│ 355 │ │ │ raise JSONDecodeError("Expecting value", s, err.value) from None │
│ 356 │ │ return obj, end │
╰──────────────────────────────────────────────────────────────────────────────────────────────────╯
JSONDecodeError: Invalid control character at: line 4906 column 19 (char 147456)

System specifications

System Details

• MackBook Air M1 2020 BigSur
• RAM: 16
• Python version 3.9:
• Installed modules (provide output from pip list):

Additional comments