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Normalize Loudness

Audio → -16 LUFS2 credits per file

Quiet voice memos and loud music bounces → every file at -16 LUFS, the loudness podcast and streaming platforms target.

Files are encrypted
EXAMPLE
UPLOADED · MIXED LEVELS
arrow_forward
NORMALIZED · -16 LUFS
voice-memo.m4a → voice-memo-normalized.m4a -27 → -16 LUFS
interview.mp3 → interview-normalized.mp3 -21 → -16 LUFS
intro-music.wav → intro-music-normalized.wav -9 → -16 LUFS
lecture.flac → lecture-normalized.flac -24 → -16 LUFS

What you get

check_circleEvery file normalized to -16 LUFS integrated (EBU R128)
check_circleTrue peaks capped at -1.5 dBTP so nothing clips
check_circleEach file measured and normalized independently, whatever the batch
check_circleFormat preserved: mp3 in → mp3 out (aac → m4a; opus and wma → mp3)
check_circleA single file downloads on its own; a batch comes back as one zip

How it works

1Upload your audioDrop in any mix of MP3, M4A, WAV, AAC, FLAC, OGG, OPUS, and WMA files, a single clip or a whole batch, recorded at whatever levels they happen to be.
2Every file is normalizedEach upload is measured and brought to -16 LUFS integrated with true peaks capped at -1.5 dBTP, per EBU R128, independently of the rest of the batch. No AI model touches your audio; the normalization is fully deterministic.
3Download at one levelOne output per upload, named after the original: voice-memo.m4a → voice-memo-normalized.m4a, format preserved. A single file downloads on its own; a batch comes back as one zip.

Who uses this tool

PODCASTING
Guests at the same volume
Segments recorded on different mics and calls land at the -16 LUFS level podcast platforms expect, so listeners stop reaching for the volume control between speakers.
VOICE NOTES
Memos you can actually hear
Phone recordings made at arm's length come back at a normal listening level instead of a whisper buried in room tone.
TEAMS & MEETINGS
Recordings from different rooms, one level
Normalize a batch of meeting and call recordings so playback volume is consistent across the whole archive.
EDUCATION
Lecture audio students can play anywhere
Recordings captured from the back of the room or a quiet laptop mic come back loud enough for earbuds on a bus.
MUSIC & AUDIO
Demos at streaming loudness
Bring rough bounces and reference tracks to the same integrated loudness so A/B comparisons are about the mix, not the level.
CUSTOMER SUPPORT
Call recordings ready for review
Exports from different phone systems arrive at wildly different volumes; normalize the batch so QA can listen straight through.
SECURITY

Built for sensitive documents

Bank statements, medical files, case records. Security isn't a feature we added — it's the foundation.

lock
Encrypted in transit
Encrypted in transit over TLS 1.2+, and stored in access-controlled, encrypted object storage. Files are protected the moment they leave your browser.
admin_panel_settings
Your files stay yours
Workspaces are isolated per account. Role-based access shows teammates only what they need.
auto_delete
Deleted, not stored
Files are deleted after processing. Everything runs on our own hardware and is never sent to an outside AI service, so your data is never used to train models.
dnsProcessed on our own hardwareauto_deleteDeleted after processinglockEncrypted in transit

Questions

Every file is normalized to -16 LUFS integrated with a -1.5 dBTP true-peak ceiling and a loudness range target of 11 LU, per EBU R128. That is the level most podcast and streaming platforms target, so normalized files play at a consistent, comfortable volume.

Related tools

Audio → smaller MP3
Compress Audio
Heavy recordings, voice memos, and podcast files → small MP3s that fit email limits and archives, a whole batch at once.
Audio → tighter audio
Remove Silence
Voice notes, dictation, and raw podcast takes → the same recording with dead air stripped and long pauses tightened.
Many clips → one
Merge Audio
Voice memos, episode parts, or interview sides → one continuous audio file, joined in the order you upload them.
Try it free. 50 credits every month.
No card needed. Files are deleted after processing.
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Normalize Audio Loudness Online: EBU R128, -16 LUFS — 42tools