Pitch Test
Online ear training & pitch test with Perfect Pitch, Relative Pitch, and Pitch Discrimination modes.
- This tool is not a medical device and is not intended for medical evaluation of hearing or pitch perception. Consult a physician for hearing concerns.
- Results are an estimate dependent on audio equipment (speakers/headphones) and environment. Results will vary with different equipment.
- When using headphones or earphones, please start from minimum volume and increase gradually.
Perfect Pitch Test (Identify note names)
Test Results
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About Pitch Test
Pitch Test is a comprehensive online ear training and auditory perception tool designed to test your musical pitch skills directly in your web browser. Utilizing the Web Audio API with real-time harmonic additive synthesis, it produces natural, pleasant tones with controlled attack and release envelopes. No audio files are downloaded, and no microphone input is needed, ensuring instant loading and complete privacy.
The application features three specialized testing modes: Absolute Pitch Test (identifying isolated note names without a reference), Relative Pitch Test (recognizing musical intervals between consecutive tones), and Pitch Discrimination Test (measuring fine pitch difference thresholds in cents using an adaptive 2-down-1-up staircase method). Ideal for vocalists, instrumentalists, sound engineers, and music enthusiasts.
Functional Boundaries with Related Audio Tools:
- Frequency Generator outputs tones at a designated frequency to test audibility; Pitch Test tests whether you can recognize the pitch of played sounds.
- Vocal Range Tester measures your vocal range via microphone; Pitch Test is a listening quiz and uses no microphone.
- Instrument Tuner measures the pitch of an incoming live sound for tuning; Pitch Test plays synthesized tones for you to identify.
- Metronome and BPM Tap measure rhythm, tempo, and timing; they do not evaluate pitch.
How to Use Pitch Test
Select Mode & Settings
Choose between Absolute Pitch, Relative Pitch, or Pitch Discrimination. Configure octave range, trial count, and interval direction to match your training goals.
Listen & Answer
Press Play to hear high-precision synthesized tones. Click the note button, interval name, or higher/lower button. You can replay the sound before confirming.
View Results & Analysis
Review your final score, percentage accuracy, confusion matrix of mistakes, or your estimated fine pitch discrimination threshold in cents.
Glossary of Terms
- Absolute Pitch (Perfect Pitch)
- The ability to identify or recreate a given musical note without the benefit of a reference tone. In psychoacoustics, it is studied as an auditory memory process where acoustic frequencies are directly matched to internal musical pitch categories.
- Relative Pitch
- The ability to determine the pitch of a tone by comparing it to a previously heard reference tone. It forms the core foundation of musical literacy, allowing musicians to transcribe melodies, recognize harmonic progressions, and sing in tune.
- Musical Interval
- The difference in pitch between two sounds. In Western music theory, intervals are classified by diatonic degree and quality, such as minor second, major third, perfect fifth, and octave, corresponding directly to integer semitone distances.
- Semitone & Whole Tone
- A semitone (half step) is the smallest interval commonly used in standard Western music, equal to 100 cents in equal temperament. A whole tone (whole step) consists of two semitones or 200 cents, such as the interval between C and D.
- Cent (cents)
- A logarithmic unit of measure used for musical intervals, defined as 1/1200 of an octave. Because pitch perception is proportional to the logarithm of frequency, cents allow precise description of minute tuning differences and auditory thresholds.
- 12-Tone Equal Temperament (12-TET)
- A tuning system in which the octave is divided into 12 semitones that are mathematically equal in frequency ratio (2^(1/12)). This standard system enables modulation between all keys without altering instrument tuning.
- Reference Pitch (Concert Pitch A4 = 440 Hz)
- The standard acoustic tuning frequency for the note A above middle C (A4). Widely accepted in modern performance, it serves as the baseline calibration from which all other notes in the 12-TET scale are calculated.
- Harmonic Overtones
- Integer multiples of a fundamental frequency that give musical instruments their distinctive timbre. Adding controlled harmonics (2nd, 3rd, and 4th overtones) creates natural-sounding tones that are much more comfortable to evaluate than raw sine waves.
- Just Intonation vs Equal Temperament
- Just intonation tunes intervals based on simple whole-number frequency ratios (such as 3:2 for a pure fifth), creating beatless chords. Equal temperament slightly compromises interval purity (a 12-TET fifth is 700 cents vs 701.96 cents) to achieve key flexibility.
- Adaptive Staircase Method (2-down-1-up)
- A classic psychophysical testing procedure that dynamically adjusts stimulus difficulty based on participant responses. Requiring two consecutive correct answers to decrease stimulus difference converges mathematically to a 70.7% perceptual threshold.
Frequently Asked Questions
- Q. Do I need a microphone or special hardware to take the test?
- No microphone or special hardware is required. The test relies solely on audio playback synthesized directly within your browser. You simply listen through your speakers or headphones and click the answer buttons on screen.
- Q. How does this pitch test differ from a medical hearing test?
- A clinical hearing test evaluates hearing thresholds and audibility across frequencies (whether you can detect a sound). In contrast, this pitch test evaluates cognitive pitch perception (identifying note names, intervals, or fine frequency differences). It is not a medical examination.
- Q. What is the difference between perfect pitch and relative pitch?
- Perfect pitch (absolute pitch) is the ability to identify a musical note instantaneously without any reference tone. Relative pitch is the ability to recognize the pitch distance (musical interval) between two consecutive tones. Relative pitch is widely trained and utilized by musicians at all stages.
- Q. How is the pitch discrimination threshold (in cents) calculated?
- Pitch discrimination uses a psychophysical 2-down-1-up adaptive staircase method. Two consecutive correct answers decrease the frequency difference, while a single error increases it. The final threshold is computed as the geometric mean of the last 6 reversal values.
- Q. Is it recommended to wear headphones or earphones?
- Yes, using headphones or quality earphones provides clearer frequency separation and reduces environmental background noise. Please start with your system volume low and adjust upward gradually to protect your hearing.
- Q. How does this tool differ from the Vocal Range Tester?
- The Vocal Range Tester (/vocal-range-tester/) requires microphone access to measure the highest and lowest pitches you can sing. This Pitch Test requires no microphone and evaluates your auditory listening perception rather than your vocal production.
- Q. How does this tool differ from the Frequency Generator?
- The Frequency Generator (/frequency-generator/) outputs continuous pure or shaped waveforms at a chosen frequency to check speaker output or audibility limits. This Pitch Test presents blind listening challenges to test your ear's recognition accuracy.
- Q. How does this tool differ from the Instrument Tuner?
- The Tuner (/tuner/) analyzes live incoming audio from an instrument or microphone to display its current pitch. The Pitch Test generates its own calibrated test tones for you to evaluate by ear.
- Q. Are my answers, test scores, or audio sent to an external server?
- No. All audio generation, scoring logic, and staircase calculations run entirely in your local browser memory. No audio streams, personal information, or test results are ever transmitted to or stored on any remote server.
- Q. Can adults train and improve relative pitch and fine discrimination?
- Yes. Relative pitch recognition and frequency discrimination can be developed through consistent ear training practice at any age. Recognizing interval relationships and active focused listening build lasting neural musical associations.
Practical Use Cases
Instrumentalists & Ear Transcribers
Musicians and producers can sharpen their pitch accuracy to transcribe chords and melodies by ear more rapidly during rehearsal and arrangement.
Vocalists & Choral Singers
Singers can develop stable mental pitch references and refine interval recognition for confident sight-singing and accurate ensemble intonation.
Audio Engineers & Mixers
Sound designers and mixing engineers can verify their critical listening acuity in discerning minute frequency discrepancies down to several cents.
Music Students & Enthusiasts
Anyone interested in understanding their auditory capabilities can explore interactive pitch recognition and track personal ear training progress.
Acoustic Synthesis and Measurement Specifications
1. Harmonic Additive Synthesis via Web Audio API
The human ear often struggles to identify the pitch of pure sine waves in isolation, particularly in very low or high frequency registers. This tool synthesizes a fundamental tone combined with the 2nd, 3rd, and 4th harmonics with amplitude ratios of 1.0 : 0.5 : 0.333 : 0.25, normalized by the sum of amplitudes. To prevent audible click transients, a linear gain envelope (linearRampToValueAtTime) with 20 ms attack and 80 ms release is applied.
2. 2-Down-1-Up Adaptive Staircase Method
The pitch discrimination test implements the transformed 2-down-1-up adaptive staircase procedure from psychophysics. Starting at an initial difference of 50 cents, two consecutive correct responses decrease the interval (increasing difficulty), while a single incorrect response increases it. Step size scaling is 2.0 for the first two reversals and √2 (approx. 1.414) thereafter. The test terminates upon 8 reversals or 40 trials, and the geometric mean of the final 6 reversals estimates the discrimination threshold corresponding to approximately 70.7% detection probability.
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