How accurate is the pitch detector?

Our tool is highly accurate, with a precision of within ±5 cents of a note. It uses the industry-standard YIN algorithm for reliable, real-time analysis suitable for both musicians and audio professionals. For more details, see our accuracy tests .

Is my audio data private and secure?

Absolutely. Your privacy is our top priority. All audio processing is done locally in your browser. No audio is ever recorded, stored, or sent to a server. You can read our full data security policy for more information.

The detector isn't working. What should I do?

First, ensure you have granted microphone access in your browser. If it's still not working, try using a quiet, echo-free environment and holding a clear, steady note. For a complete list of solutions, please visit our troubleshooting page .

What are 'cents' in music?

A 'cent' is a unit of measurement for musical intervals. There are 100 cents in one semitone (the distance between two adjacent notes on a piano). Our meter shows how many cents sharp (positive value) or flat (negative value) your note is, allowing for very precise tuning.

What is the difference between pitch and frequency?

Frequency is the scientific measurement of a sound wave's vibrations per second, measured in Hertz (Hz). Pitch is the musical term for how high or low a note sounds to our ears. While they are related, pitch is a subjective perception, whereas frequency is an objective measurement. Learn more in our glossary .

Can I use this to tune my guitar?

Yes! This tool works perfectly as an online guitar tuner. Simply play each string one at a time and use the feedback to adjust the tuning pegs until the note is perfect. It works for acoustic and electric guitars (if played through an amplifier).

How to Convert Frequency (Hz) to Musical Notes: Step-by-Step Tutorial

Musicians, singers, and audio engineers often need to translate frequencies (Hz) into musical notes for tuning, analysis, or training. The Frequency → Note Converter makes this process simple and accurate with real-time results.

This tutorial walks you through the step-by-step process of converting frequencies to musical notes and understanding what the results mean.

Why Convert Frequency to Musical Notes?

Tuning Instruments: Convert Hz readings into note names for tuning guitars, violins, and pianos.
Vocal Training: Check what notes singers hit in real time or from recordings.
Audio Analysis: Understand pitch stability in music production or speech analysis.
Music Education: Teach students how pitch and frequency relate mathematically.

For recorded pitch analysis, try the Audio-File Pitch Detector.

Step-by-Step: Frequency → Note Conversion

Step 1: Open the Frequency → Note Converter

Visit Frequency → Note Converter on any device — no installation required.

Step 2: Input Frequency (Hz)

Enter any value in Hertz (Hz) into the input box.
Example: Type 440 Hz to find the note name and pitch accuracy.

Step 3: View Note Name & ±Cents Deviation

The tool displays:

Note Name: e.g., A4 for 440 Hz.
Octave Number: Determines register (e.g., A4 vs A3).
±Cents Deviation: Shows how sharp (+) or flat (−) the frequency is compared to the perfect pitch center.

Step 4: Adjust Tuning or Singing

For instruments: Tighten or loosen strings to center the note.
For singers: Practice holding notes until ±cents deviation is below 5¢.

See Breath Support & Pitch Accuracy for improving vocal stability.

Example Frequency → Note Table

Frequency (Hz)	Musical Note	Octave	Use Case
440 Hz	A4	4	Standard tuning reference
261.63 Hz	C4 (Middle C)	4	Piano, vocal training
329.63 Hz	E4	4	Guitar string tuning
196 Hz	G3	3	Lower register instruments

Tips for Accurate Results

Quiet Environment: Background noise can interfere with readings.
Proper Mic Placement: Keep 20–30 cm away from the source.
Standard Tuning: Default is A4 = 440 Hz; orchestras often use A4 = 442 Hz.

Learn more about calibration in Accuracy & Calibration: Frequency → Note Conversion.

Common Applications

Music Teachers: Demonstrate frequency-to-pitch relationships in lessons.
Choirs: Check vocal harmonies for tuning consistency.
Audio Engineers: Analyze recordings before pitch correction in DAWs.

FAQs

1. Does the tool work for live audio?
Yes, live input works with our Pitch Detector tool.

2. Can I analyze recordings?
Yes, use the Audio-File Pitch Detector for files.

3. How accurate is the conversion?
Within ±1 cent under optimal conditions.

Ornella

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.