ComfyUI Node: Audio Fade

Audio Fade:

SaltAudioFade is a versatile node designed to apply fade-in or fade-out effects to audio segments, enhancing the auditory experience by smoothly transitioning the volume at the beginning or end of an audio clip. This node is particularly useful for creating professional-sounding audio tracks, eliminating abrupt starts or stops, and ensuring a more polished and cohesive sound. By allowing you to specify the type and duration of the fade, SaltAudioFade provides precise control over the audio dynamics, making it an essential tool for audio processing and editing tasks.

Audio Fade Input Parameters:

audio

This parameter accepts the audio data that you want to process. The audio should be in a format that the node can read, typically a WAV file. The audio data is the primary input on which the fade effect will be applied.

fade_type

This parameter determines the type of fade effect to apply. It can be either "in" for a fade-in effect or "out" for a fade-out effect. A fade-in effect gradually increases the volume from silence to full volume, while a fade-out effect gradually decreases the volume from full volume to silence. This choice directly impacts how the audio transitions at the beginning or end.

fade_duration

This parameter specifies the duration of the fade effect in seconds. It is a floating-point value with a minimum of 0.01 seconds. The duration determines how long the fade effect will take to reach full volume (for fade-in) or silence (for fade-out). A longer duration results in a more gradual transition, while a shorter duration creates a quicker fade.

fade_start

This optional parameter sets the starting point of the fade effect in seconds. It is a floating-point value with a default of 0 and a minimum of 0. This parameter allows you to delay the start of the fade effect, providing additional control over when the fade begins within the audio segment.

Audio Fade Output Parameters:

audio

The output parameter is the processed audio data with the applied fade effect. This audio will have the specified fade-in or fade-out effect, starting at the defined point and lasting for the specified duration. The output is ready for further processing or final use in your audio project.

Audio Fade Usage Tips:

• To create a smooth introduction to your audio, use the fade-in effect with a duration that matches the desired transition time.
• For a professional-sounding ending, apply a fade-out effect to gradually reduce the volume at the end of your audio clip.
• Experiment with different fade durations to find the perfect balance between a quick transition and a gradual fade.
• Use the fade_start parameter to delay the fade effect, which can be useful for applying fades to specific sections of longer audio tracks.

Audio Fade Common Errors and Solutions:

"Invalid audio format"

• Explanation: The input audio is not in a supported format.
• Solution: Ensure the audio file is in WAV format before processing.

"Fade duration too short"

• Explanation: The specified fade duration is below the minimum allowed value.
• Solution: Increase the fade duration to at least 0.01 seconds.

"Fade start out of range"

• Explanation: The fade start time is set to a value beyond the length of the audio.
• Solution: Adjust the fade_start parameter to a value within the audio segment's duration.