ComfyUI  >  Nodes  >  ComfyUI-AudioScheduler >  Audio to Amplitude Graph

ComfyUI Node: Audio to Amplitude Graph

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How to Install ComfyUI-AudioScheduler

Install this extension via the ComfyUI Manager by searching for  ComfyUI-AudioScheduler
  • 1. Click the Manager button in the main menu
  • 2. Select Custom Nodes Manager button
  • 3. Enter ComfyUI-AudioScheduler in the search bar
After installation, click the  Restart button to restart ComfyUI. Then, manually refresh your browser to clear the cache and access the updated list of nodes.

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Audio to Amplitude Graph Description

Converts audio data to visual amplitude graph for AI artists to analyze audio signals, leveraging matplotlib for clarity.

Audio to Amplitude Graph:

The AudioToAmplitudeGraph node is designed to convert audio data into a visual representation of its amplitude over time. This node is particularly useful for AI artists who want to analyze or visualize the dynamic range and intensity of audio signals. By transforming audio data into an amplitude graph, you can gain insights into the audio's structure, identify patterns, and use this information for further audio processing or creative projects. The node leverages matplotlib to generate a clear and informative graph, making it easier to understand the amplitude variations in the audio signal.

Audio to Amplitude Graph Input Parameters:


The amplitude parameter represents the audio data that you want to visualize. This data is typically a sequence of amplitude values that correspond to the audio signal's intensity over time. The node processes this data to create a graph that visually represents the amplitude variations. The amplitude parameter is required and must be provided for the node to function correctly.

Audio to Amplitude Graph Output Parameters:


The graph_image output parameter is the visual representation of the audio amplitude data. This output is an image that shows the amplitude variations over time, making it easier to analyze and understand the audio signal's dynamics. The graph includes labeled axes for frames and amplitude, a legend, and a grid for better readability. This image can be used for further analysis, presentations, or as a visual aid in creative projects.

Audio to Amplitude Graph Usage Tips:

  • Ensure that the amplitude data you provide is clean and free of noise to get a clear and accurate graph.
  • Adjust the length of the amplitude data to control the width of the graph. Longer data sequences will result in wider graphs.
  • Use the graph to identify patterns or anomalies in the audio signal, which can be useful for audio editing or creative effects.

Audio to Amplitude Graph Common Errors and Solutions:

ValueError: min_amplitude cannot be higher than max_amplitude

  • Explanation: This error occurs when the minimum amplitude value is set higher than the maximum amplitude value.
  • Solution: Ensure that the min_amplitude parameter is less than or equal to the max_amplitude parameter.

BufferError: Unable to save plot to buffer

  • Explanation: This error may occur if there is an issue with the in-memory buffer used to store the graph image.
  • Solution: Check the available memory and ensure that there is enough space to store the image. If the problem persists, try reducing the size of the amplitude data.

TypeError: Invalid data type for amplitude

  • Explanation: This error occurs if the amplitude data provided is not in the correct format or data type.
  • Solution: Ensure that the amplitude data is a sequence of numerical values representing the audio signal's amplitude.

Audio to Amplitude Graph Related Nodes

Go back to the extension to check out more related nodes.

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