Preview mastering styles before you master a track

November 7, 2026 · All posts

Choosing a mastering style from a name is a guess. "Universal", "Warm" and "Classical" tell you what the maker had in mind, not how your track will sound. The Echoteka mastering screen now lets you hear the options on your own file before you run anything, and this guide shows how to use it so the choice is based on sound and not on level.

What you see after you upload

Open the app and add a track. The screen opens with a line that says what will happen: "Auto will do: style and loudness". That is the choice the lab would make for you, and you can leave it as it is.

Once the analysis is done, four sound variants appear on their own. You do not have to ask for them. Their loudness is matched, which is the part that matters most, and a tap on a variant picks that style for the run. Signed-in users get 30 previews a day.

Why matched loudness changes the decision

A louder version almost always sounds better for the first few seconds. That is a trick of the level, not of the sound. When the variants are matched, a difference you hear is a difference in tone, density or brightness, and you can pick the one that fits the song.

Do the same when you compare against your own file. The "Original / Master" player in the result keeps the loudness matched, so the switch shows what the processing changed, not how much louder it got. The same idea is behind the LUFS meter guide: compare sound at the same level.

A short routine for choosing

1. Listen to the variants on one part. Pick the chorus or the busiest bars, not the intro. Switch between the variants without stopping the music.
2. Close your eyes for the first pass. Names bias you. Decide which one you would keep, then look at the style name.
3. Name the problem in one word. Harsh, dull, thin, small. Then use the two quick controls: "Soften harshness" if the top is sharp, "Louder and denser" if the track feels light next to others.
4. Check the format. Choose WAV or another format and 44.1, 48 or 96 kHz before you press "Master". On a desktop the settings sit in two columns and the "Master" button stays in view.

If you are unsure, leave the choice to "Auto". It is a reasonable default, and you can still try differently from the result page.

After the run: was it the right call?

The result starts with a summary: what was done, the style, loudness before and after, the format and the sample rate. Below it:

• "Not right? Try differently" gives a Spotify or Apple Music version, louder or quieter, and more bass or more top, so one wrong guess does not mean starting over.
• "Loudness over time" shows how the level moves through the song, and "Spectrum before/after" shows where the tone changed. If you chose a style to fix a dull top, the spectrum is where you check that the top really moved.
• The loop in the "Original / Master" player lets you select a part and listen to it on repeat. A hard transition or a vocal line is much easier to judge on a loop.

When a master sounds dull

If every variant sounds a little dull, the cause may be the file and not the style. In the Universal and Trap styles there is now more air and less dullness: the assistant's tonal correction switches on only when a defect is found. We checked this on 159 tracks, and loudness and peaks do not change. If a track still sounds closed, check the level of the source file, then run the preview again. How to master a Suno song walks through the order of checks.

Try it on your track

Upload a song, wait for the analysis, and listen to the four variants on your chorus. Open the app and try it.