If you’ve ever wanted to analyze pitch from recorded audio instead of singing or playing directly into a microphone, an Audio-File Pitch Detector is the perfect tool. It takes MP3, WAV, or M4A files and shows the pitch, note name, and accuracy for each sound segment — all directly in your browser.
In this guide, we’ll cover what it is, how it works, and why musicians, singers, and teachers use it every day.
What Is an Audio-File Pitch Detector?
An Audio-File Pitch Detector is a browser-based tool that analyzes pitch in recorded audio files rather than live input. It tells you:
- Note name (e.g., A4, C#3)
- Frequency in Hz (e.g., A4 = 440 Hz)
- ±Cents deviation (how sharp or flat the note is)
Unlike a live pitch detector, this tool works on existing recordings — perfect for choirs, vocal students, or music producers analyzing previously recorded material.
Try it now: Audio-File Pitch Detector — no sign-up, no software installation needed.
How It Works: Simple Explanation
- Upload a File: MP3, WAV, or M4A formats are supported.
- On-Device Processing: Audio is analyzed directly in your browser for privacy.
- Pitch Analysis: The tool detects fundamental frequencies, converts them to musical notes, and calculates ±cents deviation for accuracy.
- Display Results: Visual feedback shows pitch stability across the file.
For algorithm details like autocorrelation and smoothing, visit our Methodology page.
Why Musicians and Teachers Use It
- Choir Directors: Check intonation in rehearsal recordings.
- Vocal Coaches: Give students visual feedback on singing accuracy.
- Music Producers: Analyze vocals or instrumental tracks for pitch stability.
- Instrumentalists: Verify tuning accuracy in practice recordings.
See Pitch Flicker: 9 Causes & Fixes if your recordings show unstable readings.
Step-by-Step: How to Use the Audio-File Pitch Detector
- Open Audio-File Pitch Detector.
- Click Upload File and select an MP3, WAV, or M4A file.
- Wait for the analysis to complete (processing happens locally).
- View pitch data: note names, frequencies, and ±cents deviation appear on screen.
- Save or export results (optional).
Supported File Types
| File Format | Typical Use Case | Supported? |
|---|---|---|
| MP3 | Common for music recordings | ✅ Yes |
| WAV | High-quality, uncompressed audio | ✅ Yes |
| M4A | Apple devices, compressed audio | ✅ Yes |
| FLAC | Lossless format | ❌ Not yet |
Privacy & Security
All audio files are processed locally in your browser.
- No uploads to external servers.
- No audio is stored after analysis.
- Works offline after loading in some browsers.
See Privacy-First Pitch Detection for full details.
FAQs
1. Can I analyze multiple files at once?
Currently, the tool processes one file at a time for accuracy.
2. Does it work offline?
Yes, in some browsers after the page loads fully.
3. Is my audio secure?
Completely. Everything happens on your device — no cloud processing.
4. Can I use it for speech analysis?
Yes, as long as the speech is recorded in a supported format.
The Audio-File Pitch Detector is perfect for analyzing pitch from MP3, WAV, or M4A recordings with real-time accuracy, privacy, and ease of use.
Pitch Detector is a project by Ornella, blending audio engineering and web technology to deliver precise, real-time pitch detection through your browser. Designed for musicians, producers, and learners who want fast, accurate tuning without installing any software.