Background noise analyzer

Measure the background noise in a recording, free and private in your browser. Drop in a take to see the noise floor, an estimated signal to noise ratio, and whether there is mains hum, along with a plain reading of what kind of noise it is. Nothing is uploaded. Nothing is changed.

브라우저에서
Drop a recording here, or choose one
WAV, MP3, M4A or OGG. Analysed on your device, never uploaded.
파일 선택
브라우저에서 실행되며 업로드되지 않습니다. Vocast의 무료 도구입니다.

작동 방식

1
Add your file

Drop or choose a recording. It stays on your device.

2
Profile

The quietest window is used as the noise profile.

3
Read

Read the noise floor, signal to noise ratio and hum check.

4
Clean

Fix the room if you can, or clean the file with the free noise remover.

자주 묻는 질문

No. The analysis runs in your browser and the file never leaves your device.

Below -60 dB RMS is quiet enough for audiobook submission. Home rooms often sit between -45 dB and -55 dB.

A narrow tone at 50 Hz or 60 Hz picked up from power wiring or a poorly shielded cable. It shows up as a single spike in the profile.

No. This tool only diagnoses. The free noise remover cleans the file, and Vocast on Mac does deeper cleanup alongside voice cloning.

관련 도구

노이즈 제거
말소리는 깨끗하게 남기고 히스, 험, 룸 톤을 걷어냅니다. 결과를 A/B로 비교하고 내려받습니다.
ACX checker
Check an audiobook file against the ACX submission spec before you upload it.
마이크 테스트
안전 구간에 대비해 입력 레벨을 확인하고, 실시간 파형을 보며 짧은 샘플을 들어 봅니다.

A quieter take, in your own voice

This is the free analyzer. To narrate and clean up long scripts in a voice cloned from your own, fully local and one time, get Vocast for $49.

Vocast $49에 받기기능 보기