Diplacusis test
Diplacusis, Wikipedia: "...the same tone presented alternately to the two ears may be perceived as having different pitches in the two ears."
This is a test to measure the presence and magnitude of a suspected diplacusis.
Diplacusis, Wikipedia: "...the same tone presented alternately to the two ears may be perceived as having different pitches in the two ears."
This is a test to measure the presence and magnitude of a suspected diplacusis.
The test allows you to play tones to both ears, one ear at a time. The pitch is slightly different for both. Your task is to adjust the pitches until they sound equal.
The test consists of multiple tones tested in multiple frequency ranges. When the last range is tested, the test results are displayed. For maximal test accuracy:
Scroll the wheels to change left and right pitch. Adjust until both sound equal.
The test is now finished. Below you can find a graph illustrating the interval between left and right ear test tones as cents.
Download chart
Each point in the chart represents the interval between left and right ear tones when adjusted to sound equal.
Each interval represents the "pitch correction" required for the left ear in order to match with right ear. However, it's not possible to determine which ear is causing the error since humans generally perceive only intervals and can't identify absolute frequencies.
Concretely the graph can be interpreted as the right ear's perceived interval compared to the left ear.
Interval is presented as musical cents. A musical octave corresponds 1200 cents and a semitone 100 cents.