Harmonic Frequency yog dab tsi? Koj Tej Zaj Kawm Tamsis No Tuaj Teb

Harmonics pab koj paub qhov txawv cov twj suab paj nruag

Yog tias koj tau kawm cov kev qhuab qhia ntawm cov suab paj nruag , xov tooj cua teebmeem, los yog kev tsim hluav taws xob, koj yuav nco ntsoov tuav lub npe ntawm kev sib raug zoo. Nws yog ib qho tseem ceeb ntawm kev mloog suab nkauj li cas thiab pom tau tias. Kev sib txawv harmonic yog ib qho uas yuav pab kom peb paub meej qhov suab nrov zoo los ntawm ntau yam twj paj nruag, txawm tias thaum lawv ua si hauv tib daim ntawv.

Kev txhais ntawm Harmonic zaus

Ib qho kev sib ntau harmonic yog ib qho tsis tu ncua thiab rov ua ntau yam ntawm tus qauv yoj ib txwm, uas yog hu ua zaus. Yog hais tias tus qauv siv nthwv dej muaj li ntawm 500 hertz , nws tau ntsib thawj qhov sib txawv ntawm 1000 hertz, los yog ob zaug siv lub zog. Qhov thib ob harmonic zaus tshwm sim ntawm 1500 hertz, uas yog triple tus zaus siv, thiab qhov thib peb harmonic zaus yog 2000 hertz, uas yog quadruple tus zaus zaus, thiab li ntawm.

Nyob rau hauv lwm cov piv txwv, thawj harmonic ntawm tus zaus siv 750 hertz yog 1500 hertz, thiab tus thib ob harmonic ntawm 750 hertz yog 2250 hertz. Tag nrho cov kev sib haum xeeb yog lub caij nyoog ntawm kev siv zaus thiab tuaj yeem tawg ua rau hauv cov ntshav thiab antinodes.

Teebmeem ntawm Harmonic zaus

Yuav luag tag nrho cov suab paj nruas ua suab paj nruag tsim ib yam dab tsi sawv yoj qauv uas muaj qhov sib txuas thiab kev sib raug zoo. Lub sijhawm pes tsawg ntawm cov zaus no tso cai rau tib neeg lub pob ntseg kom pom qhov sib txawv nruab nrab ntawm ob tug neeg hu nkauj nyob rau hauv tib lub suab sib tw (zaus) thiab qhov siab (qhov siab). Qhov no kuj yog li cas peb paub tias ib tug guitar suab zoo li ib tug guitar thiab tsis yog ib qho kev ua yeeb yam los yog ib lub trumpet los yog ib tug piano los yog ib lub nruas. Txwv tsis pub, txhua tus thiab txhua yam yuav tsum zoo ib yam. Cov neeg txawj ntaus suab paj nruag tuaj yeem instinctively qhib suab paj nruag los mloog thiab sib piv harmonic frequencies ntawm kev hloov.

Harmonics Versus Overtones

Lo lus "overtones" feem ntau siv rau cov lus sib tham txog kev sib raug zoo heev. Txawm tias zoo sib xws-qhov thib ob qhov kev sib raug zoo yog qhov thib ib, qhov kev sib raug zoo thib peb yog qhov thib ob, thiab yog li ntawd-rau ob nqe lus yog qhov tseeb thiab txawv. Overtones ua rau kom tag nrho qhov zoo lossis lub sijhawm ntawm cov suab paj nruag.

Harmonic Frequency Distortion hauv Kev Hais Lus

Cov neeg tham yog ua haujlwm nrog kev xa cov lus sib raug zoo ntawm cov khoom siv uas lawv tab tom ua. Yuav kom ntsuas tau qhov txawv ntawm cov suab thiab cov lus tso tawm, ib qho kev qhia txog Harmonic Distortion (THD) raug xa mus rau txhua tus neeg hais lus-tus nqi qis dua, qhov zoo dua tus neeg hais lus lub suab. Piv txwv li, ib THD ntawm 0.05 txhais tias 0.05 feem pua ​​ntawm lub suab tuaj ntawm tus neeg hais lus yog distorted lossis contaminated.

THD tseem ceeb rau cov neeg yuav khoom hauv tsev vim lawv muaj peev xwm siv THD qhab nia rau tus neeg hais lus los ntsuam xyuas lub suab zoo uas lawv xav tau los ntawm tus neeg hais lus. Qhov tseeb tiag, qhov txawv ntawm qhov sib txawv me me, thiab feem ntau cov neeg yuav tsis pom ib nrab feem pua ​​ntawm THD los ntawm ib tus neeg hais lus rau lwm tus.

Txawm li cas los xij, thaum cov teeb meem kev sib raug zoo sib cuam tshuam los ntawm 1 feem pua, cov cuab yeej hauv lub suab kaw suab tsis zoo, yog li nws yog qhov zoo los nyob ntawm cov neeg hais lus nyob hauv siab kawg ntawm THD.