ComfyUI Node: Kokoro TextToSpeech

Kokoro TextToSpeech:

Kokoro TextToSpeech is a powerful node designed to convert written text into spoken audio using the Kokoro TTS engine. This node is particularly beneficial for AI artists and creators who wish to add a vocal element to their projects, providing a seamless way to generate high-quality speech from text inputs. The node leverages pre-trained models and a variety of voice options to produce natural-sounding audio, making it an essential tool for enhancing multimedia content with voiceovers or narration. Its primary function is to transform text into audio, offering a range of speaker voices to suit different stylistic needs, and ensuring that the generated speech is clear and engaging.

Kokoro TextToSpeech Input Parameters:

text

The text parameter is a string input that represents the written content you wish to convert into speech. This parameter is crucial as it forms the basis of the audio output. The text should be a coherent and grammatically correct sentence or set of sentences to ensure the generated speech is understandable and natural. There are no specific minimum or maximum length restrictions mentioned, but keeping the text concise can help maintain clarity in the audio output.

speaker

The speaker parameter allows you to select the voice that will be used to generate the speech. This parameter offers a variety of options, including voices like "af_sarah", "af_bella", "am_adam", and more, each providing a unique vocal tone and style. The default value is "af_sarah", but you can choose any available speaker to match the desired tone or character for your project. Selecting the right speaker can significantly impact the emotional and stylistic delivery of the text, making it an important consideration for achieving the desired effect in your audio output.

Kokoro TextToSpeech Output Parameters:

audio

The audio output parameter provides the generated speech in an audio format. This output includes a waveform tensor and a sample rate, which are essential for further processing or playback. The waveform represents the audio signal, while the sample rate indicates the number of samples per second, ensuring the audio quality is maintained. This output is crucial for integrating the generated speech into multimedia projects, allowing you to add a vocal dimension to your creative work.

Kokoro TextToSpeech Usage Tips:

• Ensure that the text input is clear and free of errors to produce the best quality audio output. Proper punctuation and grammar can enhance the naturalness of the generated speech.
• Experiment with different speaker options to find the voice that best fits the tone and style of your project. Each speaker has a unique vocal quality that can influence the overall impact of the audio.

Kokoro TextToSpeech Common Errors and Solutions:

ERROR: could not load kokoro-onnx in generate

• Explanation: This error occurs when the Kokoro TTS engine fails to initialize, possibly due to missing or incorrect model files.
• Solution: Verify that the model and voice files are correctly placed in the specified directory. Ensure that the paths to these files are correct and that the files are not corrupted.

ERROR: could not generate speech using kokoro.create

• Explanation: This error indicates a failure in the speech generation process, which could be due to an invalid text input or an issue with the selected speaker.
• Solution: Check the text input for any errors or unsupported characters. Ensure that the selected speaker is available and correctly specified.

ERROR: the text-to-speech generation did not return audio

• Explanation: This error suggests that the text-to-speech process did not produce any audio output, possibly due to an empty or invalid text input.
• Solution: Make sure the text input is not empty and is formatted correctly. Double-check the input parameters to ensure they are valid and properly configured.