Audio Editing

Explore & Discover

Audio editing is the skill behind every podcast, YouTube video, song, and film you've ever heard — and it's way more accessible than people think. Start by really listening. Pick any song you know well and listen to it through headphones. Focus on just the drums for 30 seconds, then just the bass, then just the vocals. Notice how many separate sounds are layered together. Then find a podcast episode you like — maybe from a Utah-based podcast or NPR's RadioLab — and listen for the editing. Notice where the host's voice sounds different, where there's music underneath talking, where background noise cuts in and out. Sound is invisible craft. You're ready for the next step when you can listen to a piece of audio and identify at least three separate sound layers and describe how they work together.

Learn the Basics

Download Audacity (audacityteam.org — it's free and runs on any computer). Open it and record yourself speaking for 60 seconds — just talk about your day. Now look at the waveform: those tall peaks are loud sounds, the flat sections are silence. Zoom in on a spot where you said "um" or paused and select it with your cursor. Hit delete. You just made your first edit. Now try the Noise Reduction effect: record 2 seconds of pure silence in your room, select it, go to Effect > Noise Reduction > Get Noise Profile, then select your whole recording and run Noise Reduction. Notice how the background hiss reduces. This is one of the most-used tricks in audio production. You're ready for the next step when you've recorded your voice in Audacity, made at least three cuts to remove mistakes, and applied Noise Reduction to clean up the background.

Build Your First Project

Produce a 3–5 minute mini-documentary about something in your Utah neighborhood — a local business, a nearby trail, your school, a neighbor with an interesting job. Record your narration in Audacity. Then record at least one other person talking (an interview). Download two or three royalty-free background music tracks from Free Music Archive (freemusicarchive.org) or YouTube Audio Library. Import all your audio files into Audacity as separate tracks. Now arrange them: narration on top, interview below it, music at the bottom. Use the time shift tool to slide clips around. Lower the music volume during talking using the track gain slider. Fade the music in and out at the start and end using Effect > Fade In / Fade Out. Export the final file as an MP3. You're ready for the next step when you have a finished 3–5 minute mini-documentary MP3 that combines narration, at least one interview clip, and background music.

Experiment & Iterate

Take your mini-documentary and push the audio quality further. Learn three new techniques in Audacity. First, EQ (Equalization): go to Effect > Filter Curve EQ and boost around 3000–5000 Hz on a voice track to make it sound clearer and cut around 200–300 Hz to reduce muddiness. Second, Compression: Effect > Compressor levels out the loud and quiet parts so your voice sounds more consistent — radio stations use this constantly. Third, Stereo panning: if you have two people talking, try panning one slightly left and one slightly right so they feel like they're in different spots in the room. Re-export your documentary with these improvements applied and compare it to your original. You're ready for the next step when you've applied EQ, compression, and stereo panning to a project and you can hear a clear difference between the before and after versions.

Advanced Techniques

Podcasters and video producers use advanced techniques that make content sound professional. Learn these three: First, sidechain ducking — making music automatically get quieter when someone speaks. GarageBand (free on Mac) and DaVinci Resolve (free) handle this automatically. Second, room acoustics — learn why audio recorded in a closet sounds better than in a big empty room (the clothes absorb echo) and experiment by recording the same sentence in different spots in your house. Third, loudness normalization — export your audio and check it against the podcast standard of -16 LUFS using the free online tool Auphonic (auphonic.com). Professional podcasts hit this target so they're not too quiet or too loud on any platform. You're ready for the next step when you can explain sidechain ducking, have tested room acoustics in at least two locations, and normalized a file to podcast loudness standards.

Final Project Showcase

Produce a complete, polished 8–12 minute podcast episode on any topic you're passionate about. It should have a proper intro with music, at least one interview or co-host segment, sound effects or ambient audio where it fits, proper EQ and compression on every voice track, music that ducks under speech, and a clean outro. Upload your finished episode to Anchor (now Spotify for Podcasters — free) which automatically distributes to Spotify, Apple Podcasts, and others. Write a show description and title. Share the real, live podcast link with friends and family. If you're proud of it, post it in Utah's teen creator communities or local subreddits. You're ready for the next step when your episode is live on a public podcast platform with a real episode description, and you've shared the link with at least five people outside your household.