Clear: On-device Speech Enhancement, Denoise and Dereverb

Speech enhancementAvailable

On-device speech enhancement that turns a noisy recording into a podcast-ready 48 kHz file: denoised, dereverbed, and loudness-normalized, all on device.

Clear takes noisy mono or stereo audio, a laptop mic, an untreated room, traffic, and returns a clean 48 kHz result. A fine-tuned DeepFilterNet 3 model handles noise reduction and dereverberation, and an optional pass normalizes loudness to platform spec.

It works on any audio or video file AVFoundation can read; video comes back with the original picture and enhanced audio muxed in. A 10-minute clip processes in about 7 seconds on Apple silicon. Clear is the on-device alternative to cloud tools like Adobe Podcast, Dolby, and Auphonic: audio never leaves the device, with no upload and no per-minute bill. It leads with dereverb and podcast-ready output, the qualities most denoisers skip.

Demo

Performance

Enhances a 5-minute clip in 3.7 s on an iPhone 17 Pro, 81x realtime, on device.

81x

Realtime, mono

2-5 MB

On-device

48 kHz

Output

Time to enhance a 5-minute clip on the Apple Neural Engine (internal)

Device	Mono	Stereo
iPhone 17 Pro (A19 Pro)	3.70 s · 81x	5.16 s · 58x
iPhone 15 Pro (A17 Pro)	4.88 s · 61x	6.53 s · 46x

Use cases

Podcast and video mastering

Clean a laptop-mic or untreated-room recording and normalize to Apple Podcasts, Spotify, YouTube, or EBU R128 in a single pass.

Dereverberation

Remove room reflections, not just hiss. Dereverb is where most denoisers stop and Clear keeps going.

Fast and local

A 10-minute clip processes in about 7 seconds on device, with no upload and no per-minute cost.

Voice and meeting capture

Improve the intelligibility of voice notes and recorded calls before transcription or archiving.

What it does

Denoise plus dereverb from a fine-tuned DeepFilterNet 3 model
Loudness presets: Apple Podcasts, Spotify, YouTube, EBU R128
Strength and Mastering controls
Works on any audio or video AVFoundation can read; video returns enhanced audio muxed with the original picture

Platforms and install

SwiftiOS, macOS

Install

// Swift Package Manager
.package(url: "https://github.com/Desert-Ant-Labs/clear-swift", from: "0.1.0")

Example

import Clear

let clear = try await Clear()
let result = try await clear.enhance(at: inputURL)
// result.outputPath: "in_clear.mp4"

SDK on GitHub

KotlinAndroid

Install

// build.gradle.kts (via JitPack)
implementation("com.github.Desert-Ant-Labs:clear-kotlin:0.1.0")

Example

import ai.desertant.clear.Clear

val clear = Clear.create(context)
val result = clear.enhance(inputWavPath)
// result.outputPath: ".../<stem>_clear.wav"

SDK on GitHub

JavaScript / TypeScriptWeb, Node.js

Install

npm i @desert-ant-labs/clear

Example

import { load, decodeToMono, encodeWav } from "@desert-ant-labs/clear";

const clear = await load({ variant: "studio" });
const { audio } = await clear.enhance(await decodeToMono(file));

SDK on GitHub

Specs

Output: 48 kHz, denoised and dereverbed
Speed: ~10-minute clip in ~7 seconds on Apple silicon
Model: Fine-tuned DeepFilterNet 3
Standards: LUFS / EBU R128 loudness normalization

Resources

Model weights on Hugging Face Full demo on Hugging Face Swift models Kotlin models JS models