Preset

Haze Chamber Preset

Haze Chamber preset values explained: 0.85x speed, 54% reverb, 1.2 s space, +12 bass, -10 tone, 1.5 width, plus variations so your edit sounds deep, not muddy.

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.

Haze Chamber is the heaviest of the four built-in presets in the slowed reverb maker. It is the one to pick when you want the deep, dark, wide sound most people picture when they hear the words slowed + reverb. The editor above loads it with one click. This page explains why each number is where it is, what the preset does to a track, and how to move away from it when a song needs something different.

The exact values are:

Four of the six sliders sit at the edge of their range. Bass, Tone and Width are maxed in their respective directions and Space is at its minimum. That is deliberate. Haze Chamber is a reference point for one extreme of the style, the way Wave Drift is a reference for the clean end and Dry is the untouched original.

What each value does

Speed 0.85x

With Preserve pitch off, slowing to 0.85x drops the pitch by about 2.8 semitones, so a song in C major comes out a little below A. A 140 BPM track lands at 119 BPM and a 3:30 song runs about 4:07. This is the middle of the classic slowed range. It is slow enough that the voice sits lower in the chest and the drums lose their snap, but not so slow that consonants smear. If you want to understand the speed slider on its own, the speed control page has a full semitone table.

Reverb 54%

Reverb in this editor is a wet mix between the dry signal and the output of a convolution reverb. The two are blended linearly, so at 54% you are hearing 46% dry and 54% wet. That is past the halfway point, which is why the preset sounds wet even though the decay is short. Anything above 50% means the room is louder than the performance.

Space 1.2 s

Space is the decay time of the reverb tail, and 1.2 s is the shortest the slider allows. This surprises people, because they assume the classic slowed sound is a cathedral. It is not. A 1.2 s decay with a 54% mix behaves like a dense, close room with very wet walls. Every note gets a thick cloud right behind it, but the cloud dies before the next beat. That keeps the groove readable at 0.85x. Pair the same 54% mix with a 4 s decay and the result is a wash with no rhythm left in it.

The impulse response that produces the tail is generated in the browser. It starts with a 10 ms pre-delay, adds a small set of early reflections in the first 60 ms, then follows a noise-based tail whose high-frequency cutoff slides from 9 kHz down to 1.2 kHz as the tail decays. With a 1.2 s decay that sweep happens fast, so the late reflections darken almost immediately. That is a large part of why Haze Chamber sounds smoky rather than splashy.

Bass +12 dB

The bass control is a low shelf at 180 Hz, and Haze Chamber pushes it to the maximum. Slowing a track moves all of its energy down, so the original kick now sits lower, and +12 dB on top of that gives a very heavy low end. On headphones this is the physical, chest-thumping weight the style is known for. On small speakers it can either vanish or distort, which is one of the first things to check. The bass control page covers headroom in more detail.

Tone -10 dB

Tone is a high shelf at 2600 Hz, and -10 dB is the darkest setting available. Two things happen. First, the hiss, sibilance and cymbal detail above 2.6 kHz are pulled down hard, which hides the slight graininess that playback-rate stretching adds to the top end. Second, the whole mix tilts toward the low mids, which the ear reads as distance and age. Combined with the maxed bass, the tilt is extreme. This is the "underwater" or "heard through a wall" character.

Width 1.5

The width stage mixes a portion of each channel into the other. At 1.0 the channels are untouched. At 1.5 the stage pushes the difference between left and right outward, so panned elements and the stereo reverb tail spread beyond where they sat in the original. The result is big on headphones. Summed to mono, as on a phone speaker or a Bluetooth puck, some of that spread cancels, so the reverb can seem to shrink. The stereo width control page explains the maths.

What Haze Chamber sounds like

Play a bright pop record through it and the first impression is weight. The kick becomes a slow thud, the voice drops to a lower register and gains a thick halo, and all the sparkle on top disappears. The reverb is everywhere, but because the decay is short it feels like a packed room rather than an empty hall. It reads as late night, nostalgic and slightly muffled.

The honest downside is clarity. At 54% mix and -10 dB tone, fast lyrics in a dense arrangement will lose their edges. Haze Chamber is a mood, and some songs are too wordy for it.

Genres and sources that suit it

Haze Chamber works best on material with room in it:

• Trap and modern rap. Sparse 808-driven beats with a few vocal lines take the bass boost well and the short decay keeps the hi-hat pattern from becoming a smear.
• R&B and slow pop. Long-held vocal notes love the thick halo. The pitch drop adds warmth to a high voice.
• Synthwave and ambient pop. Pads already have space in them; the preset just makes it darker and wider.
• Instrumentals and beats. Without lyrics to protect, the 54% mix is never a problem.

It struggles on:

• Dense rock mixes, where the bass boost turns the guitars to sludge.
• Acoustic songs with lots of air on top, since the -10 dB tone removes exactly what made them pretty.
• Any source already heavy in sub bass. Stacking +12 dB on a mix that is already at the limit causes clipping.
• Low-bitrate MP3s. Slowing exposes compression artifacts and the dark tone can only hide so much.

How to adjust from Haze Chamber

Treat the preset as a ceiling and back off one control at a time. Change one slider, listen for ten seconds, then decide.

1. Lyrics are unclear. Lower Reverb from 54% to 40% before touching anything else. Mix level, not decay, is what buries words. The guide on why slowed and reverb sounds muddy walks through this.
2. Too dark. Raise Tone from -10 toward -5. Each 2 dB step brings back a noticeable amount of air.
3. Bass distorts or disappears on a phone. Drop Bass to +7 or +8. You will still have plenty of weight.
4. You want a bigger room, not a wetter one. Raise Space to 2.4 or 3.0 s and lower Reverb to 40%. The tail gets longer and the words stay in front.
5. Collapses in mono. Pull Width back to 1.2.
6. Too slow for the song. Move Speed to 0.88x. Very fast songs can even take 0.90x and still feel slowed.

Once you have a version you like, click Create preset and save it under your own name. Custom presets live in your browser's local storage and sit next to the built-in ones.

Variations built from Haze Chamber

Each row changes as few values as possible from the original so you can hear what the change does.

The "bigger room" row is the most instructive. It swaps the preset's short decay for a 3 s tail and lowers the mix. It sounds more spacious and less wet at the same time, which demonstrates that Reverb and Space are separate decisions.

Using Haze Chamber on a batch

If you run a channel, Haze Chamber is a reasonable house sound for instrumentals and slow vocal tracks. Add every file, click Select All Tracks, pick the preset, then listen to the wordiest song in the set. If that one survives at 54%, the rest will. If it does not, select just the wordy tracks and give them the vocal safe variation while leaving the others on the original. Download All then renders each track with its own settings into one ZIP.

Exports are MP3 at 96 kbps and 32 kHz, encoded in your browser. For YouTube, TikTok and Shorts that is fine, because those platforms re-encode whatever you upload. If you need a lossless master, process a WAV source and finish in a DAW. Heavy bass and dark tone actually compress well at 96 kbps, since there is less high-frequency detail for the encoder to spend bits on.