Lessons
Audio mixing for video: levels, ducking, busses and stems
Audio mixing for video in Sharpy: level each voice, duck music under speech, group tracks into busses and deliver stems that add up to the mix.
18 October 2026 · 7 min read
Sound and audio for video: clean, level and mix your sound
Good sound is half of a good video. Cleaning a voice, taking out noise and echo, loudness for YouTube and broadcast, music that ducks under speech, syncing a recorder to a camera, and mixing it all on your Mac.
Lessons
Cut video to music: find a track, fit it and cut to the beat
Cut video to music in Sharpy: find licensed music by mood, fit it to your edit's exact length so it ends on its own ending, and cut every shot on the beat.
18 October 2026 · 7 min read
Guides
Royalty-free music for YouTube and sound effects: where to find them
Where to find royalty-free music for YouTube and free sound effects, what each library's licence asks of you, and how to credit it without a claim.
18 October 2026 · 7 min read
Guides
How to sync audio and video recorded separately on a Mac
How to sync audio and video recorded on separate devices: by clap, waveform or timecode, why sound drifts, and how Sharpy lines them up to the sample.
18 October 2026 · 6 min read
Guides
How to remove background noise from video on a Mac
Remove background noise from video on a Mac: hum, hiss, room noise and echo, what iMovie offers, and how Sharpy cleans a voice without losing its words.
18 October 2026 · 6 min read
Explainers
What LUFS for YouTube? Loudness and true peak explained
LUFS for YouTube: aim for about −14 LUFS with true peaks under −1 dBTP. What LUFS and true peak mean, each platform's target, and why louder costs you.
18 October 2026 · 6 min read
Lessons
What is ADR? How to re-record and replace a line of dialogue
What is ADR: re-recording a line after the shoot and fitting it to the picture. How to record a good take, and how Sharpy lays it in on your Mac.
18 October 2026 · 7 min read
Lessons
Sound effects for video: where to put them and how to find them
Sound effects for video, placed well: whooshes on movement, hits on text, room under it all, found by describing them and credited for you.
18 October 2026 · 7 min read
Guides
Auto ducking: how to lower music under speech automatically
Auto ducking lowers music while someone speaks and lifts it between lines. How deep and how fast to duck, and how to stop it pumping between words.
18 October 2026 · 7 min read
Explainers
What is room tone, and why does every edit need it?
Room tone is the sound of a room with nobody speaking. Why cuts sound wrong without it, how long to record, and how Sharpy fills every gap a cut leaves.
18 October 2026 · 6 min read
Guides
How to extract audio from video on a Mac: M4A, WAV or MP3
Extract audio from video on a Mac with QuickTime, the Finder or the Music app, and when to export WAV, M4A or stems from Sharpy instead.
18 October 2026 · 6 min read
Guides
How to add music to a video without it drowning the voice
How to add music to a video on a Mac: pick a track you may use, set it under the voice, duck it, end it on its own ending and credit it properly.
18 October 2026 · 7 min read
