ᎠᏍᏓᏩᏛᏍᏙᏗ

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ᎠᎷᏚᎧᏘ ᏓᏍᏟᏁᎦ ᏧᏓᎴᏅᏓ frequencies; ᎯᎠ ᎡᎳᏗᎨ ᎠᎺᏉᎯ ᎤᎭ ᎦᎸᎳᏗᎨᏍᏙᏗ frequencies ᎬᎾᏬᏍᎬ ᎾᏍᎩ ᎦᎸᎳᏗᏢ.

ᎠᏍᏓᏩᏛᏍᏙᏗ ᎨᏒᎢ ᎯᎠ ᎠᏓᏃᎮᏗ ᎯᎠ ᏎᏍᏗ itsuwakodi Ꮎ ᏄᏩᎫᏔᏅ ᏂᎦᎵᏍᏔᏂᏙᎲ ᏄᎵᏍᏔᏅ ᎾᏍᎩ ᎢᎬᏂᏏᏍᎩ ᏌᏊᎭ iyuwakodi. ᎾᏍᎩ ᎨᏒᎢ ᎾᏍᎩ ᎾᏍᏇ ᎧᏁᎢᏍᏔᏅᎯ ᏥᏄᏍᏗ ᎯᎠ ᏓᎬᏩᎶᏛ ᏧᎾᏍᏗ dadanetlivysegv sinusoidᎦᎾᏄᎪᏫᏒ waveform.

1 ᎠᏓᏃᎮᏗ
2 ᎠᏍᏓᏩᏛᏍᏙᏗ ᎠᎺᏉᎯ
3 ᏱᏓᏟᎶᏍᏔᏅ
4 ᎠᎪᏩᏛᏗ ᎾᏍᎩ ᎾᏍᏇ
5 ᎤᏓᏎᎦᏤᏗ ᏗᏕᎬᏔᏛ

ᎠᏓᏃᎮᏗ

ᎠᏎᏍᏗᏱ ᎯᎠ ᎠᏍᏓᏩᏛᏍᏙᏗ ᏂᎦᎵᏍᏔᏂᏙᎲ, ᎯᎠ ᏎᏍᏗ ᏄᏍᏗᏓᏅ ᎯᎠ ᏂᎦᎵᏍᏔᏂᏙᎲ ᎭᏫᏂᏗᏢ ᎣᏍᏛ ᏄᏩᏁᎸ iyuwakodi ᏰᎵ ᎤᏝᏅᏛ ᎠᎴ ᏗᏎᎸᎯ, ᎠᎴ ᎾᎯᏳᎢ uniyatolv ᎾᎥᎢ ᎯᎠ ᏂᎦᏅᎯᏒ ᎯᎠ iyuwakodi ᏰᎵ ᎤᏝᏅᏛ.

ᎭᏫᎾᏗᏢ Ꮟ ᏌᏊᎭ, ᎯᎠ ᏄᎵᏍᏔᏅ ᎨᏒᎢ ᎡᎷᏪᎢ ᎭᏫᎾᏗᏢ hertz (Hz), ᏓᎪᎥᎩ ᎤᎶᏐᏅ ᎯᎠ ᎠᏓᏥ ᎢᏳᏍᏗ ᏯᏛᎿ Heinrich Rudolf Hertz. 1 Hz ᎤᏅᏔᏂᏓᏍᏗ Ꮎ ᏂᎦᎵᏍᏔᏂᏙᎲ ᏅᎬᎪᎪᎩ ᏌᏊ ᎢᏳᏩᎫᏗ ᎾᏍᎩ ᎢᎬᏂᏏᏍᎩ ᏔᎵᏁ, 2 Hz ᎨᏒᎢ ᏔᎵ ᎢᏳᏩᎫᏗ ᎾᏍᎩ ᎢᎬᏂᏏᏍᎩ ᏔᎵᏁ, ᎠᎴ ᎾᏍᎩ ᎢᎬᏂᏏᏍᎩ ᎾᎿ. ᎪᎯ ᏌᏊᎭ ᏥᏄᏍᏛᎩ ᎠᎴᏅᏔᏅ ᎤᏯᏅᎲ ᎠᏓᏠᎯᏍᏗ ᎾᏍᎩ ᎢᎬᏂᏏᏍᎩ ᏔᎵᏁ (cps), ᎦᏙ ᎤᏍᏗ ᎨᏒᎢ ᏙᎢ ᎬᏔᏅᎯ ᏱᏓᏟᎶᏍᏔᏅ. ᏐᎢ ᏌᏊᎭ Ꮎ ᎠᎴ ᎬᏔᏅᎯ ᎠᏟᎶᏍᏗ ᎠᏍᏓᏩᏛᏍᏙᏗ ᎠᏠᏯᏍᏛ ᎠᏕᏲᎲ ᎾᏍᎩ ᎢᎬᏂᏏᏍᎩ ᎢᏯᏔᏬᏍᏔᏅ (rpm) ᎠᎴ radians ᎾᏍᎩ ᎢᎬᏂᏏᏍᎩ ᏔᎵᏁ (rad/). ᎠᏓᏅᏙ ᏓᎬᏩᎶᏛ ᎠᎴ ᏗᎧᏃᎩᏛ ᎦᏃᏢᎩ tempo ᎠᎴ ᎡᎷᏪᎢ ᎭᏫᎾᏗᏢ ᎠᏓᏠᎯᏍᏗ ᎾᏍᎩ ᎢᎬᏂᏏᏍᎩ ᎢᏯᏔᏬᏍᏔᏅ (BPM).

ᏅᎪᏢᎯᏐᏗᏱ ᎢᎬᎾᏗ ᎠᏎᏍᏗᏱ ᎠᏍᏓᏩᏛᏍᏙᏗ ᎨᏒᎢ ᎠᏟᎶᏍᏗ ᎯᎠ iyuwakodi ᎠᏰᎵ ᏔᎵ ᎠᏍᏓᏩᏗᏒ ᏄᏍᏗᏓᏅ ᎯᎠ ᏂᎦᎵᏍᏔᏂᏙᎲ (ᎯᎠ ᎠᎴᏫᏍᏙᏗ) ᎠᎴ ᎾᎯᏳᎢ ᎠᏓᏃᎮᏗ ᎯᎠ ᎠᏍᏓᏩᏛᏍᏙᏗ f ᏥᏄᏍᏗ ᎯᎠ ᏗᎵᎪᏔᏅᎯ ᎪᎯ iyuwakodi:

$f = \frac{1}{T}$

ᎭᏢᏃ T ᎨᏒᎢ ᎯᎠ ᎠᎴᏫᏍᏙᏗ. ᎤᏟ ᎢᎦᎢ ᎧᎵ ᏗᏙᎳᎩ ᎠᏓᏃᎮᏗ ᎠᎩᏍᎪᎢ ᎤᎪᏗᏗ ᎠᏓᏠᎯᏍᏗ ᎾᎾᎯ ᎬᏂᎨᏒ ᎢᎬᏁᏗ ᎠᎴ ᎢᎦᏘᎭ ᎢᎬᏁᎸ ᎯᎠ ᎠᎴᏫᏍᏙᏗ ᎠᏰᎵ ᎠᏂᏏᏴᏫᎭ.

ᎠᏍᏓᏩᏛᏍᏙᏗ ᎠᎺᏉᎯ

ᎠᏍᏓᏩᏛᏍᏙᏗ ᎤᎭ ᎠᏨᏍᏙᏗ ᎠᎾᎵᏐᏈᎸᏍᎬ ᎯᎠ ᎠᏓᏅᏖᏗ wavelength. ᎯᎠ ᎠᏍᏓᏩᏛᏍᏙᏗ f ᎨᏒᎢ ᎢᏗᎦᏗ ᎯᎠ ᎦᏣᏄᎳ v ᎯᎠ ᏓᏍᏟᏁᎦ uniyatolv ᎾᎥᎢ ᎯᎠ wavelength λ (lambda) ᎯᎠ ᏓᏍᏟᏁᎦ:

$f = \frac{v}{\lambda}$

ᎭᏫᎾᏗᏢ ᎯᎠ ᎤᏤᎵᏛ ᎦᎸᏛ ᎧᏁᏌᎢ electromagnetic ᎠᎺᏉᎯ ᎠᏓᏅ ᏗᎬᏩᎶᏒ ᏅᏙᎲᏅ, ᎾᎯᏳᎢ v = c, ᎭᏢᏃ c ᎨᏒᎢ ᎯᎠ ᎦᏣᏄᎳ ᎠᏨᏍᏛ ᎭᏫᎾᏗᏢ ᏅᏙᎲᏅ, ᎠᎴ ᎪᎯ ᎢᎦᏪᏛ ᏗᏙᎳᎩ:

$f = \frac{c}{\lambda}$

ᎯᎳᎪ ᎢᏳ ᎠᎺᏉᎯ ᎡᏙᎵᏙᎲ ᏂᏛᎴᏅᏓ ᏌᏊ ᎠᏰᎵᏇ ᎢᏴ ᏄᏓᎴ, ᎤᎾᏤᎵ ᎠᏍᏓᏩᏛᏍᏙᏗ ᎤᎾᎵᏃᎯᏴᎯ ᎧᎵ ᏗᏙᎳᎩ ᎯᎠ ᎤᏠᏱ — ᎾᏍᎩ ᎤᏩᏒ ᎤᎾᏤᎵ wavelength ᎠᎴ ᎦᏣᏄᎳ ᏧᎾᏍᏗ.

ᏧᎦᎴᏅᏓ ᏂᏛᎴᏅᏓ ᎠᎴᏂᏙᎲ ᏧᏓᎴᎿᎢ ᎾᎥᎢ ᎯᎠ Doppler ᎢᏳᎵᏍᏙᏗ, ᎠᏍᏓᏩᏛᏍᏙᏗ ᎨᏒᎢ invariant ᎢᎦᎢ ᎭᏫᎾᏗᏢ ᎯᎠ ᎡᎶᎯ. Ꮎ ᎨᏒᎢ, ᎾᏍᎩ ᏝᏰᎵ ᎾᏍᏋ ᎦᏁᏟᏴᏓ ᎾᎥᎢ ᏂᎦᎵᏍᏗᏍᎬᎫ ᏄᎵᏂᎬᎬ ᏧᎵᎬᏩᎳᏅᎯ ᏧᏓᎴᎿᎢ ᎠᏓᏁᎳᏅᎯ ᎠᏛᎯᏍᏙᏗ ᎠᎴ wavelength.

ᏱᏓᏟᎶᏍᏔᏅ

ᎯᎠ ᎠᏍᏓᏩᏛᏍᏙᏗ ᎯᎠ ᏰᎵᏊ ᏗᏙᎳᎩ ᎠᏗᏅᏗ ᎦᎸᎳᏗᏢ ᎠᏰᎵ C ᎨᏒᎢ ᎤᏠᏱᎭ ᎧᏁᎢᏍᏔᏅᎯ ᏥᏄᏍᏗ 440 Hz, Ꮎ ᎨᏒᎢ, 440 ᎠᏓᏠᎯᏍᏗ ᎾᏍᎩ ᎢᎬᏂᏏᏍᎩ ᏔᎵᏁ (Template:Audio) ᎠᎴ ᎤᎾᏅᏛ ᏥᏄᏍᏗ ᏓᏂᏃᎩᏍᏗᏍᎬ ᎠᏗᏅᏗ, ᎦᏙ ᎤᏍᏗ ᏗᏂᏃᎩᏍᏗᏍᎩ ᎤᏃᏴᎬ.
ᎤᏍᏗ ᏰᎵᏇ ᎠᏛᎩ ᎤᏃᏴᎬ ᎬᏙᏗ ᎠᏓᏠᎯᏍᏗ ᎦᎸᎳᏗᏢ ᎾᎥᏂᎨᏍᏙᏗᏇ 20,000 Hz, ᎠᎴ ᎾᏍᎩ ᎯᎠ frequencies ᏗᏙᎳᎩ ᎤᏟ ᎢᎦᎢ ᎤᏦᏍᏗ ᎠᏛᎩ ᏥᏄᏍᏗ ᏴᏫ lyudetiyvda.
ᎭᏫᎾᏗᏢ Europe, ᎯᎠ ᎠᏍᏓᏩᏛᏍᏙᏗ ᎯᎠ ᏒᏃᏱ ᎡᎯ ᏅᏙ ᎠᎵᏱᎵᏒ ᎧᏃᎮᏗ ᎭᏫᎾᏗᏢ ᏄᎬᏫᏳᏒ ᎨᏒᎢ 50 Hz (ᎠᏍᏚᏗ ᎯᎠ ᎤᏃᏴᎬ G), ᏱᏂᎬᏛᎾ, ᎭᏫᎾᏗᏢ ᎤᏴᏢ ᎠᎺᎵᎨ, ᎯᎠ ᎠᏍᏓᏩᏛᏍᏙᏗ ᎯᎠ ᏒᏃᏱ ᎡᎯ ᏅᏙ ᎠᎵᏱᎵᏒ ᎧᏃᎮᏗ ᎨᏒᎢ 60 Hz (ᎠᏍᏚᏗ ᎯᎠ ᎤᏃᏴᎬ B ᎤᏩᎾᏕᏍᎩ — Ꮎ ᎨᏒᎢ, ᎠᏲᎵ ᏦᎢᏁ ᎦᎸᎳᏗᏢ ᎯᎠ European ᎠᏍᏓᏩᏛᏍᏙᏗ). ᎯᎠ ᎠᏍᏓᏩᏛᏍᏙᏗ ᎯᎠ 'ᎧᏬᎳᏕᏍᎬ' ᎭᏫᎾᏗᏢ audio ᏗᏟᎶᏍᏔᏅ ᏰᎵᏇ ᎤᎾᏛᏁᎸᏗ ᎭᏢᏃ ᎯᎠ ᏗᏟᎶᏍᏔᏅ ᏥᏄᏍᏛᎩ ᎪᏢᏅᎯ — ᎭᏫᎾᏗᏢ Europe ᎠᎴ ᎭᏫᎾᏗᏢ ᎠᎺᎵᎨ.