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Enhance (AI mixing and mastering)
Enhance (AI mixing and mastering)

How to mix and master your podcast with AI

Updated this week

Mixing and mastering your podcast audio is HARD work. That’s probably why you’re reading this article in the first place.

In the past, removing background noise, balancing the volume of speakers, removing unwanted frequencies, and achieving a professional sound for your podcast meant you needed to learn audio production from the ground up. You needed to get a Digital Audio Workstation (DAW), and learn how to use plugins like equalizers, compressors, spectrograms, and more.

It was a LOT of work.

But now, thanks to advances in AI, there’s an easier way. In this article, we’ll show you how to automatically mix and master your podcast with Enhance by Resound.

How it works (Step-by-step)

Note: This video contains outdated UI. We will update the video soon.

1. Log into Resound at app.resound.fm

2. Upload your file(s)

3. Click “process audio” to begin processing with AI

This step will detect filler sounds like um and ah in your audio using Resound’s proprietary machine learning models! It’s important to note this is not enhancing your audio… That comes next!

4. Adjust settings and start Enhance

  • Click “Review edits” to open your project

  • Click the “Enhance” section in the right sidebar to open up settings

  • Select your AI Voice Filter

  • Adjust De-Noise (optional)

  • Click Advanced Settings to adjust all other parameters (optional)

  • Click “Enhance” or click the grey toggle switch on

5. Wait for Enhance to process

Enhance can take anywhere from a minute to ten minutes, depending on the length of your audio or video, the file size, the number of files, and your settings. The De-Click setting is one that takes the most time to run, so if you wish to speed up the process you can consider disabling that under Advanced Settings.

6. Listen to your mixed file

Once Enhance is done, you can listen to your audio. Click the green toggle in the Enhance section on and off to compare how your audio sounds before and after.

7. Re-Enhance until your mix is just right (optional)

If your audio sounds great the first time, feel free to skip this step! But if it’s not quite right yet, simply repeat step #4 above. As soon as you start changing your settings you will see the big button appear that says “Re-Enhance.” Click this to start the Enhance process over again. No need to re-upload your file or waste precious usage time!

8. Review other edits Resound detected (optional)

While you wait for Resound to Enhance feel free to review all the filler sounds and long silences that Resound detected during step #3. Click Cut to remove, Keep to leave content alone, or adjust the boundaries as needed. You can also skip this step if you only want to enhance.

9. Export Enhanced file(s)

Ready to upload your file to your RSS feed or use it in a final video? Great!

  • Click on the Export section

  • Select the file format(s) you want

  • Click the green Export button to begin

Enhance FAQs

What Enhance features are included in my plan?

Enhance is available to all paying users on Creator, Pro, Studio, and Enterprise plans.

Creator:

  • ✅ Enhance

  • ✅ 2 AI Voice Filters

  • ✅ Advanced Settings

  • ✅ Re-Enhance until it’s just right

Professional:

  • ✅ Enhance

  • ✅ 4 AI Voice Filters

  • ✅ Advanced Settings

  • ✅ Re-Enhance until it’s just right

Studio:

  • ✅ Enhance

  • ✅ 4 AI Voice Filters

  • ✅ Advanced Settings

  • ✅ Re-Enhance until it’s just right

Exporting Enhanced Files

To export your enhanced files, simply make sure Enhance is turned on, then click Export and select the right file format. Resound will export whatever files you are currently listening to in the app. If Enhance is on, the exported files will be enhanced. If Enhance is off, the exported files will be your original audio files.

You can export both a merged Enhanced file in Resound AND individual enhanced files. Simply click the button to include individual tracks when exporting if you wish to do so.

How do I compare my original audio and Enhanced audio in Resound?

If you want to compare your Original audio to the Enhanced audio, simply click the toggle switch next to “Enhance” in the right side panel. This will switch the editor back to your old files so you can hear and see the difference. You can toggle this on and off as many times as you want.

How will I know when my file is done Enhancing?

If your Enhanced file is still processing when you click the “Enhance toggle”, you will see an indicator that says “Enhancing” at the top of the Editor. You will also see a message pop up in the bottom right corner of the app once it’s done. If your file is already DONE being enhanced, the file will swap out instantly and you can just click play to hear the results.

How does Resound work behind the scenes?

Resound's Enhance features runs your audio file(s) through a series of audio algorithms powered by AI. We developed this feature in collaboration with a Lead Mixing Engineer from Resonate Recordings to dial in our enhancement algorithm to meet their high-quality standards. The results speak for themselves.

👉 The bottom line? If you export an Enhanced MP3 file from Resound, you can rest assured that your file has been optimized to meet the streaming standard for podcast apps like Apple Podcasts and Spotify. That means it’s been mastered to -16 LUFS and has a 128 kbps bitrate.

Want even more detail? Let’s break down the processes Resound is doing behind the scenes.

AI Voice Filters:

  • Normalize: Tracks are normalized to ensure a smooth volume across the entire audio file.

  • Equalize: Make your voices sound better by removing unwanted frequencies.

  • Correct Levels: Automatically sets your podcast at a range around -16 LUFS (loudness units full scale) which is the recognized industry standard for mastering podcasts.

  • Limiter: A brick-wall limiter is at the very end of the chain (though it’s not shown in the app interface), which reduces chances of your audio clipping.

Want to bypass the AI voice filters entirely? Simply select the “None” profile to bypass all of the features listed above.

Additional Audio Processing:

  • De-Noise: Uses AI to reduce constant background noises like hiss, hum, and static that will distract your listener from your voice(s). Typically performs best at 100%.

  • De-Click: Reduces clicks and pops in your audio. The higher the sensitivity, the more clicks removed and slower the processing time. Typically performs best at 99%.

  • High Pass Filter: Reduces the lower frequencies in your voice and let the high frequencies pass. We recommend starting at 80Hz.

  • Low Pass Filter: Reduces the higher frequencies in your voice and let the low frequencies pass. We recommend starting at 16kHz (16,000Hz).

  • De-Esser: Reduces harsh sibilant sounds like s’s, t’s, and z’s (also known as “esses”). Typically performs best from 25-45%

Do I have to keep the window open when enhancing audio?

No, you do not need to keep the project or app open in order for Enhance to process. You acn safely close the Editor or even leave the app and Enhance will keep working in the background. You can come back later to hear the results!

Why is Enhance preventing me from exporting?

Sometimes you'll see the export button is greyed out, and you cannot export a file.

If you hover it says "Can't export until at least one edit is made or Enhance is enabled and completed." This means you have to made one Cut, wait for Enhance to complete, or disable Enhance to export your project.

If Enhance is on, Resound will export your enhanced file. If Enhance is off, Resound will export your unmixed file with any edits you made applied as well.

Does Enhance work with files that have music in them?

For an optimal mix and master, we recommend uploading your individual speech tracks to Resound without music. If you have multiple speakers, try to record each speaker on a dedicated track and upload each track to Resound.

Learn more about multitrack editing in Resound here. That said, you can upload a single track with music and speakers directly into Resound and still get a decent result.

How long does it take to enhance an audio/video file?

Enhance mixes and masters your audio with AI and signal processing. How long it takes to enhance your audio depends on a few factors: How long your project is, the file size (MB/GB), how many tracks are in your project, and a few others.

It’s difficult to give an estimate of how long Enhance takes, but you can expect a 30-minute podcast will take 5-10 minutes to enhance. Sometimes it will take more, sometimes less.

Here’s a breakdown of how long the different processes of Enhance take:

  • AI Voice filters: Slow (this takes the most time of the entire process)

  • De-noise: Fast

  • De-click: Slow

  • High pass: Fast

  • Low pass: Fast

  • De-esser: Fast

New around here? Start editing your podcast with AI for FREE at resound.fm!


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