Comparison

slowandreverb vs Audacity for slowed and reverb

Slowandreverb vs Audacity for slowed and reverb, compared on speed control, reverb settings, export formats, batch work and learning curve.

Audacity is the tool most people reach for the first time they try to make a slowed and reverb edit, and for good reason. It is free, it runs on Windows, macOS and Linux, and it has every effect the style needs. The question is not whether Audacity can do it. It can. The question is how many clicks it takes, what you get at the end, and whether you want a full waveform editor for a job that is really three sliders.

This page compares Audacity with the slowed reverb maker on this site. Both are free. One is a desktop program with hundreds of features; the other is a browser page that does one thing. Below is what each does to speed, pitch and reverb, what each exports, how each handles a stack of files, and when you should pick which. If you also want to know how a browser tool stacks up against a full DAW, read online tool vs DAW. For the step-by-step Audacity recipe, see the Audacity vs online walkthrough.

Feature table

Audacity facts below come from the Audacity manual at the time of writing. Our facts are the editor as shipped.

How speed and pitch work in each

Audacity gives you three separate effects for this and the names matter.

Change Speed and Pitch is the one that makes a classic slowed edit. It changes tempo and pitch together, exactly like slowing a record. The controls are linked: a Speed Multiplier, a Percent Change from -99% to 4900%, a standard vinyl rpm converter and a New Length box. Set the multiplier to 0.85 and you have the same move as our Speed slider at 0.85x with Preserve pitch off.

Change Tempo changes length without changing pitch. It has Percent Change, BPM from and to, and a Length field, plus a "high quality stretching" checkbox that uses the SBSMS algorithm. This is the equivalent of our Preserve pitch switch, with one important difference: Preserve pitch changes the live preview only; exported files keep the speed-linked pitch. Change Tempo writes the result to the file, so it is the tool to use for a slower file in the original key.

Change Pitch changes pitch without changing length, in semitones, note names or frequency. There is no equivalent in our editor. If you want a song two semitones lower at the original tempo, Audacity does it and we do not.

On this site the Speed control is a single slider from 0.50x to 1.50x. With Preserve pitch off, the pitch follows the speed, so 0.84x is roughly three semitones down. With it on, the key stays put in the preview. That covers slowed, daycore, sped up and nightcore edits, but it does not cover "same tempo, different key".

How reverb works in each

Audacity's Reverb is based on the freeverb algorithm. You get Room Size from 0 to 100%, Pre-delay up to 200 ms, Reverberance, Damping, Tone Low, Tone High, Wet Gain, Dry Gain, Stereo Width and a Wet Only checkbox. It ships with factory presets named after spaces, from Bathroom to Cathedral. That is a lot of knobs, and the sound you get depends on how Reverberance, Room Size and Damping interact, which takes a few tries to learn.

Our Reverb control is a convolution reverb with two parameters: the wet mix and the decay time, which we call Space. A long Space with a low mix gives distance; a short Space with a high mix gives a small wet room. Bass and Tone shelves sit after it. It is less flexible than Audacity but faster to get a usable result, and the preview is the full chain, so you hear speed, reverb, bass, tone and width together before you export.

A matching recipe

Here is a slowed edit done both ways, so you can hear the same idea in each program.

The Audacity version gives you more control at every step and a lossless file at the end. The browser version gets there in under a minute with no menus.

Export quality, honestly

This is where Audacity wins outright. It exports WAV, FLAC and WavPack losslessly, plus MP3 from 8 to 320 kbps in constant, average or variable modes, plus OGG, Opus and M4A. If you are sending a master to a distributor or a client, Audacity, or a DAW, is the correct tool.

Our editor exports MP3 at 96 kbps and 32 kHz, nothing else. That rate is chosen so encoding finishes quickly inside a browser tab, including on phones. It is fine for YouTube, TikTok and Shorts, because those platforms re-encode whatever you upload. It is not a distribution master. We say that plainly because most online tools do not.

Batch work

Audacity can batch, but through Macros. You build a macro that chains Change Speed and Pitch, Reverb, EQ and an Export command, then apply it to a folder of files. The manual recommends keeping runs to about 500 files. It works, but you cannot audition the result on each song before it renders, and setting it up the first time takes real effort.

In the browser editor, batch is the default behaviour. Drop in an album, click Select All Tracks, move the sliders once, press play on any track to check, then Download All for a ZIP. Select a subset to give those tracks different settings. The bulk slowed reverb page covers the workflow in detail.

Learning curve and speed

Audacity is an editor first. You need to know where the effects live, that they apply to a selection, that you should select all before applying, and that Export Audio is a separate step with its own dialog. None of that is hard, but a first slowed edit in Audacity usually takes a while with a tutorial open. After that it is a few minutes per song.

The web editor takes about as long as the song's encode time. Open the page, drop the file, pick Haze Chamber or Wave Drift, nudge Speed, download. There is nothing to learn beyond what each slider does.

When to pick Audacity

• You need WAV or FLAC output, or an MP3 above 96 kbps.
• You want to change pitch without changing tempo, or tempo and pitch by different amounts.
• You need to trim the intro, cut a section, fade the ending or splice two songs.
• You want fine reverb control: pre-delay, damping, separate low and high tone.
• You are producing a master for distribution or a client, not a social upload.
• You are already comfortable in a waveform editor.

When to pick slowandreverb

• You want the edit done in a minute, with no installation.
• You are processing many songs with the same settings and want one ZIP.
• You are on a phone or a locked-down work or school computer.
• You want to hear the full chain live before exporting.
• You care that the audio never leaves your device and you do not want an account.
• The destination is YouTube, TikTok or Shorts, where 96 kbps is more than the platform keeps anyway.

Using both

Plenty of people do. Dial in the sound here because the live preview makes it fast to find a speed and reverb amount that fits a song. Note the values. Then, if you need a lossless master, recreate them in Audacity with Change Speed and Pitch and the Reverb effect, and export WAV. The browser editor becomes your sketchpad and Audacity becomes your print shop.

Open the free editor: upload MP3, WAV, AAC, OGG or FLAC, adjust speed, reverb, bass, tone, width and space, then export MP3 or a ZIP of many tracks. Everything runs in your browser.