Editing Podcasts With Audacity: A Comprehensive Tutorial

Enabling a Few Shortcuts

Editing speed matters when you’re trimming hours of conversation. Open Preferences > Keyboard and map common actions like “Play/Stop,” “Cut,” and “Split.” If you prefer, you can also turn on Transport > Scrubbing to quickly audition rough spots.

Installing Essential Plugins (Optional)

Audacity ships with a solid set of effects, but you can extend it. The Ladspa and VST3 formats allow you to add third‑party tools like a de‑esser or a better noise gate. A great starting point is the free Audacity Plugin Suite that includes a more advanced compressor.

Importing and Organising Your Audio

Open Audacity and create a new project (File > New Project). Then import your raw recordings. You can drag and drop audio files directly onto the timeline or go to File > Import > Audio. Audacity supports WAV, AIFF, MP3, FLAC, OGG, and many other formats.

When you import multiple speakers (e.g., host and guest), each file lands on its own track. This is essential—it lets you edit each voice independently. Label each track by double‑clicking the track name (e.g., “Host – Mike,” “Guest – Sarah”) so you can quickly tell them apart.

Backup Before You Cut

Make it a habit to save a project file (File > Save Project > Save Project As…) before you start deleting audio. Audacity’s project format (.aup3) is non‑destructive—you can always go back to the raw files if needed.

Basic Editing: Cuts, Trims, and Splits

The foundation of every podcast edit is removing content that doesn’t serve your listener: long pauses, mistakes, off‑topic tangents, or awkward breaths. Here’s how to do it efficiently.

Silence the Unwanted with the Selection Tool

Click the Selection Tool icon (or press F1). Click and drag over a section of the waveform to highlight it. Press Delete (or Backspace on Windows) to remove that region. The remaining waveform will snap together automatically.

To quickly find silent gaps, use Analyze > Silence Finder. Set a threshold (e.g., -30 dB) and a minimum silence duration (e.g., 0.5 seconds). It will place labels wherever silence occurs, making mass removal a breeze.

Splitting a Clip to Rearrange Content

Sometimes you need to move a sentence from later in the episode to an earlier spot. Place the cursor where you want to split, then go to Edit > Clip Boundaries > Split (or press Ctrl+I / Cmd+I). Now you have two independent clips. Click anywhere on the second clip and drag it left or right along the timeline.

When you have multiple tracks, splits affect only the selected track. That’s handy if you want to move a guest’s response but leave the host track untouched.

Smoothing Edits with Crossfades

Sudden cuts can sound jarring. After deleting a section, create a tiny crossfade between the two adjacent clips. Select a few milliseconds at the split point and apply Effect > Crossfade Clips (or manually fade in and fade out). This is especially important when you’re cutting out a “um” or a breath.

Advanced Audio Cleanup: Removing Noise and Clicks

Podcasts are rarely recorded in a perfect studio. You’ll often face background hum, fan noise, mouth clicks, or room echo. Audacity provides powerful tools to scrub those problems without ruining the vocal quality.

Step-by-Step Noise Reduction

1. Capture a noise profile. Find a few seconds where only the background noise is audible (no speech or music). Select that region.
2. Go to Effect > Noise Reduction. Click Get Noise Profile.
3. Select the entire track (or the portion you want to denoise). Open the effect again and adjust the Noise Reduction (dB) slider. Start around 12–15 dB. Preview the result. If you hear warbling (artifacts), lower the reduction or increase the Sensitivity setting.
4. Click OK to apply.

Pro tip: Use two passes if noise is heavy. First pass at 6–9 dB, second at 6–9 dB. This reduces artifacts while still cleaning up a surprising amount of hiss.

De‑Esser Workaround (Reduce Harsh Sibilance)

Audacity doesn’t include a built‑in de‑esser, but you can approximate one. Duplicate your vocal track, then use Effect > Filter Curve EQ to boost frequencies around 5–8 kHz by 3–6 dB on the copy. Apply heavy compression to that copy and mix it back into the original at very low volume. The result: the compressor hits the sibilant parts before they become unpleasant. Alternatively, use a free VST de‑esser (like RoughRider 3) loaded via Effect > Add / Remove Plugins.

Click and Pop Repair

Mouth clicks and plosives can be removed individually. Zoom in to the waveform until you see the sharp transient spike. Use the Selection Tool to highlight just that spike (a few samples) and press Delete. The very short gap will be almost inaudible. For a smoother fix, use Effect > Click Removal (set threshold around 20–40). Be careful not to over‑apply, as it can cause boxy audio.

Levelling Your Podcast: Compression, EQ, and Normalisation

Your listeners shouldn’t have to adjust their volume between a whisper and a laugh. Using compression and EQ creates a consistent, voice‑friendly mix.

Using the Compressor

Select the track (or all tracks) you want to compress. Go to Effect > Compressor. Start with these settings:

• Threshold: -20 dB
• Ratio: 3:1
• Attack time: 0.2 seconds
• Release time: 1.0 seconds
• Make‑up gain: 0 dB (we’ll normalise later)

Preview with a section that has both loud and quiet parts. If the loud parts are still too dominant, lower the threshold to -24 dB. If the audio sounds crushed, increase the ratio to 4:1 for more aggressive leveling.

Equalising for Clarity

Open Effect > Filter Curve EQ. For a typical voice, apply a high‑pass filter below 80 Hz to remove rumble. Add a gentle boost (2–3 dB) at 150–200 Hz for warmth, and another boost around 2.5–3 kHz for presence. Avoid boosting above 10 kHz to keep out hiss. You can save this EQ curve as a preset for future episodes.

Normalise at the End

After compression and EQ, normalise your final mix to -1 dB or -0.5 dB. Select all tracks and choose Effect > Normalize. Check “Normalize peak amplitude to -1.0 dB.” This ensures your podcast won’t clip during encoding and leaves headroom for loudness normalisation (like LUFS).

Working with Multiple Tracks and Music

Most podcasts include an intro jingle, background music or sound effects. Audacity’s multitrack design makes it easy to layer audio.

Adding an Intro or Outro Track

Import your music file (e.g., an MP3 of your intro). It will appear as a new track. Use the Time Shift Tool (F5) to slide the music to the very start of the timeline. If you want the music to fade out before speech begins, add a Fade Out effect on the track. To blend smoothly, create an envelope point: click the Envelope Tool (F2), then click on the music track’s waveform to add a control point, dragging it down to lower the volume where the vocals start.

Volume Automation (Envelopes)

Rather than chopping and applying fade effects, you can ride the volume in real time. With the Envelope Tool active, click anywhere on a track to create a control point. Drag that point up or down to change gain. Add more points to create curves. This is perfect for ducking the music under speech.

Exporting: Choosing the Right Format and Settings

Your final step is generating the audio file you’ll upload to platforms like Spotify, Apple Podcasts, or Buzzsprout. Format choice matters for compatibility and quality.

Export as MP3

Go to File > Export > Export as MP3. The most widely accepted settings for podcasts are:

• Bit Rate Mode: Constant
• Quality: 192 kbps (mono) or 256 kbps (stereo)
• Channel Mode: Joint Stereo (or Mono for solo voice)

Most hosting platforms recommend a sample rate of 44100 Hz. Check File > Export Audio… to see all options; ensure the format dropdown says “MP3 Files.”

Export as WAV or FLAC (for Lossless Archiving)

If you want a master copy before compressing to MP3, export as WAV (24‑bit, 44100 Hz) or FLAC (for smaller file sizes without quality loss). You can always compress later for distribution.

Loudness Normalisation (LUFS)

Many podcast directories expect a loudness of -16 LUFS or -19 LUFS. After exporting, you can analyse your file with a tool like Loudness.io or the free Youlean Loudness Meter 2 (VST). If your episode is too quiet or too loud, apply Effect > Loudness Normalization in Audacity before final export. Set the target to -16 LUFS and choose “Perceived loudness.”

Final Checks and Troubleshooting

Before you hit export, run through this short checklist:

• Listen to the entire episode end‑to‑end with headphones. Watch for pops, abrupt edits, or uneven volume.
• Check that the intro and outro music fades correctly.
• Verify there’s no clipping (red stripes in the waveform). If you see any, lower the gain before exporting.
• Use Analyze > Contrast Analysis to compare the quietest and loudest parts of your mix.

Common Pitfalls and Fixes

Problem: Volume is very low after noise reduction.
Fix: Apply makeup gain via Amplify or increase normalisation target.

Problem: Audio sounds “tinny” after equalisation.
Fix: Check your high‑pass filter. You may have removed too much low end. Try a gentler slope (6 dB/octave).

Problem: Background buzz remains.
Fix: Apply a narrow notch filter (Effect > Notch Filter) centred on the hum frequency (60 Hz in the US, 50 Hz in Europe).

Continuous Improvement: Templates & Presets

Editing time is precious. As you refine your workflow, save your go‑to effects as presets. In the compressor or EQ window, use Manage Presets to save and load settings. You can also create a blank project with tracks already named, silence‑finder labels prepared, and a default compressor/EQ chain. Then every new episode starts with a consistent foundation.

For an exhaustive list of keyboard shortcuts and hidden features, refer to the official Audacity Manual.

Final Thoughts

Editing a podcast with Audacity can feel overwhelming at first, especially when you’re juggling multiple tracks, noise, and levels. But by breaking the process into clear phases—setup, cleanup, leveling, and export—you can turn chaotic raw audio into a polished episode that keeps listeners engaged.

Audacity’s power is in its flexibility: the tools are simple enough for a first‑episode edit, yet deep enough for post‑production that rivals paid software. Experiment with the effects, listen critically, and your ears will quickly learn what sounds right. With practice, your editing sessions will shrink from hours to minutes—and your audience will hear the difference.