missing fundamental


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Related to missing fundamental: Harmonic frequency

missing fundamental

n
(Music, other) a tone, not present in the sound received by the ear, whose pitch is that of the difference between the two tones that are sounded
References in periodicals archive ?
Let's not make the mistake of missing fundamental opportunities to chase secondary needs.
This trick results in brass instruments having a missing fundamental, known as the pedal tone.
TRUEViEW aims to provide the currently missing fundamental knowledge, by implementing innovative electron imaging techniques as the ultimate tools to directly visualize and characterize photonic and plasmonic nanostructures in both space and time with nanometer and femtosecond resolution.
Founded on the principle of the "missing fundamental," MaxxBass creates harmonics that mimic the original bass sound--a strategy often used in the professional audio world where large speakers are impractical.
MaxxBass is an algorithm that utilizes the psychoacoustic "Phenomenon of the Missing Fundamental" to extended perceived bass frequency response by up to 1.5 octaves.
At that time, organ builders discovered and applied the phenomenon of "the missing fundamental" and used it to produce an impression of larger, deeper bass from smaller pipes than would actually produce the lowest notes.
They outfitted smaller organs with sets of pipes that would produce harmonics of the missing fundamental. Those harmonics would be carefully shaped to imply that they were being heard as a result of that non-existent lower fundamental tone.
The MaxxBass system applies this missing fundamental principle to small speaker systems, allowing them to produce apparent bass that they are technically incapable of emitting.
Since the 1960s, researchers have developed several models to account for pitch perception, but all have shared the idea that the brain sorts through incoming overtones one by one until it has enough information to infer a missing fundamental. This process demands a lot of resources, and scientists believe it could only take place in the auditory cortex, the final and most powerful part of the brain's hearing system.
The researchers theorize that the brain uses that resonance frequency to determine the missing fundamental.
And if all the frequencies in the input signal are multiples of a missing fundamental frequency, the circuit's output conveys only the missing element.
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