Not Specified
Bass
Baritone
Tenor
Alto
Mezzo-Soprano
Soprano
Your calculated voice range will appear here.
Understanding Your Voice Range
A voice range calculator helps determine the span of musical pitches a person can comfortably produce. It's calculated by identifying the lowest and highest frequencies (in Hertz) that a voice can sing. This range is a fundamental aspect of vocal classification and is crucial for singers, vocal coaches, and music educators.
How it Works: The Math
The core of this calculator is straightforward:
Lowest Note Frequency: Measured in Hertz (Hz), representing the vibrations per second of the sound wave produced by the lowest note you can sing.
Highest Note Frequency: Measured in Hertz (Hz), representing the vibrations per second of the sound wave produced by the highest note you can sing.
Octave Span: This is a measure of how many octaves your voice covers. An octave represents a doubling of frequency. For example, A3 is approximately 220 Hz, and A4 is approximately 440 Hz.
Note Names (Approximate): Converting precise frequencies to musical notes (like C4, G5) involves comparing them to standard pitch references (like A4 = 440 Hz) and using logarithmic scales. This calculator simplifies by directly using your input frequencies.
The range itself is often expressed as the lowest note to the highest note (e.g., E2 to G5). The size of the range is also significant, often measured in semitones or octaves.
Frequency to Musical Note Conversion (Simplified):
The relationship between frequency (f) and the note number (n) in the equal temperament scale can be approximated using the formula:
n = 12 * log2(f / 440) + 69
where 440 Hz is the standard pitch for A4. The resulting 'n' can be used to determine the note name. While this calculator focuses on frequency input for accuracy, understanding this underlying principle is key.
Use Cases:
Vocal Classification: Helps categorize a singer's voice (Soprano, Tenor, Bass, etc.) based on their pitch capabilities.
Repertoire Selection: Assists singers in choosing songs that lie comfortably within their natural vocal range.
Vocal Training: Useful for coaches to track progress and tailor exercises to a student's specific range and capabilities.
Choral Arrangement: Aids in assigning parts to singers based on their vocal range.
Disclaimer: This calculator provides an estimate based on user-provided frequency data. For precise vocal analysis and classification, consulting with a qualified vocal coach or audiologist is recommended. Optimal vocal performance depends on technique, resonance, and health, not solely on range.
function calculateVoiceRange() {
var lowestNoteInput = document.getElementById("lowestNote");
var highestNoteInput = document.getElementById("highestNote");
var voiceTypeSelect = document.getElementById("voiceType");
var resultDiv = document.getElementById("result");
var lowestFreq = parseFloat(lowestNoteInput.value);
var highestFreq = parseFloat(highestNoteInput.value);
var voiceType = voiceTypeSelect.value;
resultDiv.innerHTML = "Your calculated voice range will appear here."; // Reset message
if (isNaN(lowestFreq) || isNaN(highestFreq)) {
resultDiv.innerHTML = "Please enter valid numerical frequencies for both notes.";
return;
}
if (lowestFreq <= 0 || highestFreq <= 0) {
resultDiv.innerHTML = "Frequencies must be positive numbers.";
return;
}
if (lowestFreq >= highestFreq) {
resultDiv.innerHTML = "The lowest note frequency must be less than the highest note frequency.";
return;
}
// Approximate conversion to musical notes (using A4 = 440 Hz as reference)
// n = 12 * log2(f / 440) + 69
// This is a simplification for display purposes. Accurate note naming is complex.
var noteNames = ["C", "C#", "D", "D#", "E", "F", "F#", "G", "G#", "A", "A#", "B"];
function getNoteName(freq) {
if (freq <= 0) return "Invalid";
var noteNum = 12 * Math.log(freq / 440) / Math.log(2) + 69;
var octave = Math.floor(noteNum / 12) – 1; // Adjust octave based on A4 reference
var noteIndex = Math.round(noteNum) % 12;
return noteNames[noteIndex] + octave;
}
var lowestNoteName = getNoteName(lowestFreq);
var highestNoteName = getNoteName(highestFreq);
// Calculate range span in octaves
var octaveSpan = Math.log(highestFreq / lowestFreq) / Math.log(2);
var resultHTML = "Calculated Range: " + lowestNoteName + " to " + highestNoteName + "";
resultHTML += "Frequency Span: " + lowestFreq.toFixed(2) + " Hz – " + highestFreq.toFixed(2) + " Hz";
resultHTML += "Approximate Octave Span: " + octaveSpan.toFixed(2) + " octaves";
if (voiceType && voiceType !== "Not Specified") {
resultHTML += "Likely Voice Type: " + voiceType + "";
}
resultDiv.innerHTML = resultHTML;
}