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HEBU Hartmann Stemmegaffel

HEBU Hartmann Stemmegaffel

Varenummer: B30203510

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Stemmegaffel fra HEBU:

HB 180-00: C128:  128 HZ: Lavfrekvent
HB 180-01: C¹ 256:  256 HZ
HB 180-02: C² 512:  512 HZ: Høyfrekvent

Frekvensen er et utrykk for antall svingninger pr. sek., altså hvor mange ganger i sekundet lydtrykket varierer. Høy-frekvent lyd (diskant) har mange svingninger pr. sek. Lav-frekvent lyd (bass) har få svingninger pr. sek. De laveste frekvensene vi kan høre er på ca. 20 Hz. De høyeste frekvensene vi kan høre er på ca. 20.000 Hz. Frekvenser lavere enn 20 Hz kalles Infralyd. Frekvenser høyere enn 20.000 Hz kalles ultralyd.
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