This shortcut does 2 things for audio and video files:

• Apply audio equalizer presets
• Boost audio volume if needed

The a-Shell mini app is required because it provides FFmpeg.

Instructions

1. Install a-Shell mini
2. Run this shortcut
3. Select a file to equalize

The shortcut will prompt for an equalizer preset.

Features

• Over a dozen presets
• 10-band equalizer
• Automatically boosts volume to optimum levels
• Apply optional filters (see below)

Presets

• Acoustic
• Bass Booster
• Cinematic
• Classical
• Deep
• Electronic
• Flat
• Hip Hop
• Latin
• Mid Booster
• Pop
• Rock
• Treble Booster
• Vocals
• Custom

Notes

• The “Deep” preset is a favorite.
• Try the “Classical” preset along with the “Extra Stereo” filter.
• Easily edit existing presets in JSON format.
• There are about 11 prompts for permissions.

Filters

Apply one or more optional filter effects to clean up speech or enhance stereo and more.

Filter Descriptions

• Equalizer: Choose from a dozen EQ presets. [firequalizer]
• Dynamic Normalize: Even out the file’s volume with dynamic normalization. [dynaudnorm]
• Loud Normalize: Even out the file’s loudness with loudness normalization. [loudnorm]
• Stereo Widen: Insert a delay to make stereo sound wider. [stereowiden]
• Extra Stereo: Increase the stereo effect. [extrastereo]
• Speech Isolation: Isolate speech in challenging or noisy environments. [lowpass] [highpass] [compand]
• Speech Normalize: Even out the speech volume with speech normalization. [speechnorm]
• Noise Reduction: Mildly reduce noise in audio. [afftdn]
• Lower Pitch: Lower the audio’s pitch without changing the tempo. [asetrate] [aresample] [atempo]
• Raise Pitch: Raise the audio’s pitch without changing the tempo. [asetrate] [aresample] [atempo]
• Chorus: Apply a mild chorus effect [chorus]
• Reverb: Apply a mild reverb effect [aecho]