https://www.szynalski.com/tone-generator/
Online Tone Generator - generate pure tones of any frequency
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https://www.jstage.jst.go.jp/article/ast/27/1/27_1_12/_article/-char/en
Hearing threshold for pure tones above 20 kHz
Access full-text academic articles: J-STAGE is an online platform for Japanese academic journals.
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https://www.rexaroar.com/
Rexa | Focus App with Pure Tones and App Blocking
Rexa is a focus app with pure tones, Auditory Beat Stimulation (ABS), immersive audio, app blocking, and tools for deep work, study, sleep, and reset.
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https://impact.ornl.gov/en/datasets/oak-ridge-spoofing-and-interference-test-battery-oakbat-pure-tone/
Oak Ridge Spoofing and Interference Test Battery (OAKBAT) - Pure Tones - Oak Ridge National...
oak ridgepure tonesspoofinginterference
https://pubmed.ncbi.nlm.nih.gov/15376658/
Equal-loudness-level contours for pure tones
Equal-loudness-level contours provide the foundation for theoretical and practical analyses of intensity-frequency characteristics of auditory systems. Since...
equalloudnesslevelcontourspure