Beats created by different sound frequencies can be heard as a distinct tone
Multiple studies and psychoacoustic principles confirm that presenting slightly different sound frequencies separately to each ear produces the perception of a distinct third tone known as a binaural beat.
The claim asks whether beats created by different sound frequencies can be heard as a distinct tone. This refers to the psychoacoustic phenomenon of binaural beats. Papers [1], [4], [7], and [9] explicitly describe this phenomenon, noting that presenting two slightly different pure tones to each ear results in the perception of a third, fused auditory image or beat at a frequency equal to the difference between the two tones. Therefore, the claim is well supported by the literature.
Brittany Munro, G. Searchfield. The short-term effects of recorded ocean sound with and without alpha frequency binaural beats on tinnitus perception.. 2019. https://doi.org/10.1016/j.ctim.2019.05.005
States that dichotic presentation of two auditory stimuli with a small frequency difference produces the perception of a third, fused auditory image known as a binaural beat.
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Jeahong Kim, Hyun-Woong Kim, Jessica Kovar, Yune Sang Lee. Neural consequences of binaural beat stimulation on auditory sentence comprehension: an EEG study. 2023. https://doi.org/10.1093/cercor/bhad459
Explains that binaural beats are generated by the dichotic presentation of slightly mismatched pure tones.
Hector D Orozco Perez, Guillaume Dumas, Alexandre Lehmann. Binaural Beats through the auditory pathway: from brainstem to connectivity patterns. 2019. https://doi.org/10.1101/623231
Defines binaural beating as a perceptual auditory illusion occurring when two neighboring frequencies are presented to each ear separately.
Salomé Sudre, R. Kronland-Martinet, Laetitia Petit, J. Rozé, S. Ystad, M. Aramaki. A new perspective on binaural beats: Investigating the effects of spatially moving sounds on human mental states. 2024. https://doi.org/10.1371/journal.pone.0306427
Reiterates that individuals exposed to two pure tones with close frequencies presented separately in each ear perceive a third sound known as binaural beats.
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