wiro / audio-fade

## Overview Audio Fade is a Wiro-native audio utility that applies a volume envelope to an existing track. It fades audio up from silence at the start and down to silence at the end. You get a new audio file with cleaner intros and outros. This helps remove hard cuts that cause clicks or abrupt starts. ## What you can build - Podcast intro and outro cleanup before publishing - Music previews that start and end smoothly for social posts - App UI sounds that fade out instead of cutting off - Voiceover clips with a gentle ramp-in and ramp-out - Ringtone or notification edits that don’t end abruptly - Batch-ready exports to a standard delivery format ## Inputs - An audio file you provide. Upload a file or pass an existing hosted file. - A fade-in length in seconds for the start of the track. Use 0 seconds to disable it. - A fade-out length in seconds for the end of the track. Use 0 seconds to disable it. - An optional output audio format selection. Leave it unset to keep the input format. - An optional bitrate target for lossy formats, measured in kbps. This setting doesn’t apply to lossless exports. ## Outputs - One processed audio file in the selected format. - The same content as the input, with a smooth ramp at the beginning and end. - If you choose a lossy format, the output is re-encoded at the chosen bitrate. ## Limitations - Fade-in and fade-out are limited to 30 seconds each. - The two fades together can’t be longer than the audio itself. - The fade-out is always placed at the end of the audio. - Lossless outputs ignore bitrate controls. - Re-encoding to a lossy format can change sound quality. - Low-quality inputs can cause weak results. This includes clipped audio, heavy distortion, or strong background noise. - Tracks with long leading or trailing silence may make the fades hard to notice. ## Safety & compliance - Only upload audio you own or have the rights to use. - Don’t upload sensitive audio if you can’t share it by link. Generated file URLs can be publicly accessible to anyone with the URL. - Download and store outputs you need to keep long-term. Hosted output links may not be permanent.