ComfyUI Node: 📣 Generate Audio

📣 Generate Audio:

The Generate Audio node is designed to facilitate the creation and manipulation of audio data within your AI art projects. This node allows you to load, encode, decode, and save audio files, providing a seamless workflow for integrating audio elements into your creative endeavors. By leveraging advanced audio processing libraries like torchaudio, this node ensures high-quality audio handling, making it an essential tool for artists looking to incorporate sound into their work. Whether you are generating latent audio representations or converting text to speech, the Generate Audio node offers a versatile and user-friendly interface to achieve your audio-related goals.

📣 Generate Audio Input Parameters:

audio

This parameter represents the audio file you wish to load or process. It is a required input and should be a valid audio file located in the specified input directory. The audio file will be loaded and processed to generate the desired output. Ensure that the file path is correct and the file format is supported by the node.

filename_prefix

This parameter is used when saving audio files. It allows you to specify a prefix for the output file names, helping you organize and identify your saved audio files. The default value is "audio/ComfyUI", but you can customize it to suit your project needs. This parameter is particularly useful for batch processing, as it helps maintain a consistent naming convention.

text

This parameter is used in the text-to-speech functionality of the node. It allows you to input the text that you want to convert into speech. The text can include special annotations like [laughter], [music], and capitalization for emphasis. This parameter is essential for generating audio from textual descriptions, making it a powerful tool for creating narrated content or voiceovers.

📣 Generate Audio Output Parameters:

AUDIO

This output parameter represents the processed audio data. It includes the waveform and sample rate of the audio, encapsulated in a dictionary format. The waveform is a tensor containing the audio samples, while the sample rate indicates the number of samples per second. This output is crucial for further audio processing or playback within your project.

LATENT

This output parameter is used when encoding audio into a latent representation. It contains the latent audio samples, which can be used for various generative tasks or further processing. The latent representation is a compressed form of the audio, capturing its essential features while reducing its dimensionality.

STRING

This output parameter is used when saving audio or generating text-to-speech output. It contains the file path of the saved audio file, allowing you to easily locate and use the generated audio in your project. This parameter is particularly useful for verifying the successful completion of the save or text-to-speech operation.

📣 Generate Audio Usage Tips:

• Ensure that your audio files are in a supported format (e.g., WAV, FLAC) to avoid compatibility issues.
• Use descriptive and consistent filename prefixes to organize your saved audio files effectively.
• When using the text-to-speech functionality, experiment with different annotations and capitalization to achieve the desired speech output.
• Leverage the latent audio representation for advanced generative tasks, such as creating new audio samples or transforming existing ones.

📣 Generate Audio Common Errors and Solutions:

Invalid audio file: <audio>

• Explanation: This error occurs when the specified audio file cannot be found or is not in a supported format.
• Solution: Verify that the file path is correct and the audio file is located in the specified input directory. Ensure that the file format is supported by the node.

Error loading audio file: <error_message>

• Explanation: This error occurs when there is an issue loading the audio file, possibly due to file corruption or unsupported format.
• Solution: Check the integrity of the audio file and ensure it is not corrupted. Convert the file to a supported format if necessary.

File not found: <filename_prefix>

• Explanation: This error occurs when the specified filename prefix leads to an invalid or non-existent directory.
• Solution: Ensure that the directory specified in the filename prefix exists and is accessible. Create the directory if it does not exist.

Text-to-speech conversion failed

• Explanation: This error occurs when the text-to-speech conversion process encounters an issue, possibly due to invalid text input or model errors.
• Solution: Verify that the text input is correctly formatted and does not contain unsupported characters. Ensure that the text-to-speech model is properly configured and available.