[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.rekoscb.cz\/technicke-parametry-sluchatek\/#Article","mainEntityOfPage":"https:\/\/www.rekoscb.cz\/technicke-parametry-sluchatek\/","headline":"Technick\u00e9 parametry sluch\u00e1tek","name":"Technick\u00e9 parametry sluch\u00e1tek","description":"Kmito\u010dtov\u00fd rozsah sluch\u00e1tek (frekven\u010dn\u00ed rozsah) Ka\u017ed\u00e1 sluch\u00e1tka na trhu ud\u00e1vaj\u00ed rozsah frekvence, ve kter\u00e9 pracuj\u00ed. Frekvence je stanovena v\u00a0Hertz (Hz nebo KHz) a znamen\u00e1 to \u00a0spektrum sly\u0161iteln\u00fdch t\u00f3n\u016f. Zpravidla m\u00edvaj\u00ed sluch\u00e1tka b\u011b\u017en\u00fd rozsah od 20 Hz do 20 tis\u00edc Hz.... ","datePublished":"2023-05-06","dateModified":"2023-05-06","author":{"@type":"Person","@id":"https:\/\/www.rekoscb.cz\/author\/devene\/#Person","name":"devene","url":"https:\/\/www.rekoscb.cz\/author\/devene\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/87132efef9f5972c3e770e1fb0907fb3dcc1311f82da5f30bffbae0bd81cf8c0?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/87132efef9f5972c3e770e1fb0907fb3dcc1311f82da5f30bffbae0bd81cf8c0?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"rekoscb.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.rekoscb.cz\/wp-content\/uploads\/img_a308379_w2392_t1519469322.jpg","url":"https:\/\/www.rekoscb.cz\/wp-content\/uploads\/img_a308379_w2392_t1519469322.jpg","height":0,"width":0},"url":"https:\/\/www.rekoscb.cz\/technicke-parametry-sluchatek\/","wordCount":468,"articleBody":"\tKmito\u010dtov\u00fd rozsah sluch\u00e1tek (frekven\u010dn\u00ed rozsah)Ka\u017ed\u00e1 sluch\u00e1tka na trhu ud\u00e1vaj\u00ed rozsah frekvence, ve kter\u00e9 pracuj\u00ed. Frekvence je stanovena v\u00a0Hertz (Hz nebo KHz) a znamen\u00e1 to \u00a0spektrum sly\u0161iteln\u00fdch t\u00f3n\u016f. Zpravidla m\u00edvaj\u00ed sluch\u00e1tka b\u011b\u017en\u00fd rozsah od 20 Hz do 20 tis\u00edc Hz. N\u00edzk\u00e9 t\u00f3ny odpov\u00eddaj\u00ed n\u00edzk\u00e9 frekvenci a naopak. N\u00edzk\u00fd t\u00f3n, to jsou zjednodu\u0161en\u011b \u0159e\u010deno basy, vysok\u00e9 t\u00f3ny naopak v\u00fd\u0161ky. N\u011bkter\u00e1 sluch\u00e1tka m\u00edvaj\u00ed rozsah frekvenc\u00ed vy\u0161\u0161\u00ed, b\u00fdvaj\u00ed to zpravidla \u0161pi\u010dkov\u00e9 studiov\u00e9 modely, ale t\u00f3ny pod 15 Hz ji\u017e b\u011b\u017en\u011b \u010dlov\u011bk nesly\u0161\u00ed, stejn\u011b tak t\u00f3ny nad 22 KHz, kter\u00e9 se bl\u00ed\u017e\u00ed ultrazvuku. U sluch\u00e1tek se tedy p\u0159edev\u0161\u00edm hodnot\u00ed rozsah bas\u016f od 20 Hz do 200 Hz, rozsah st\u0159edn\u00edch t\u00f3n\u016f od 200 do 2000 Hz a zbytek t\u00f3n\u016f p\u0159ipad\u00e1 na v\u00fd\u0161ky. Za rozsahem frekvence se je\u0161t\u011b ud\u00e1v\u00e1 tzv. \u00fatlum v\u00a0decibelech, co\u017e zna\u010d\u00ed hlasitost, p\u0159i jej\u00edm\u017e poklesu bude tento rozsah je\u0161t\u011b sly\u0161et.\tCo je to impedance?Zn\u00ed to jako intendant, n\u011bjak\u00fd \u00fa\u0159edn\u00edk v\u00a0kr\u00e1lovsk\u00e9 monarchii, ale impedance s\u00a0t\u00edm nem\u00e1 nic spole\u010dn\u00e9ho. Je to celkov\u00fd sou\u010det odporu sou\u010d\u00e1stek a tzv. f\u00e1zov\u00e9ho posuvu nap\u011bt\u00ed v\u016f\u010di proudu, kter\u00fd zp\u016fsobuje pr\u016fchod st\u0159\u00eddav\u00e9ho proudu o ur\u010dit\u00e9 frekvenci. Pro praktick\u00fd p\u0159\u00edklad posta\u010d\u00ed v\u011bd\u011bt, \u017ee se sluch\u00e1tka zapojen\u00e1 do p\u0159\u00edstroje (zesilova\u010de) chovaj\u00ed jako z\u00e1t\u011b\u017e s\u00a0n\u011bjak\u00fdm odporem. \u010c\u00edm je z\u00e1t\u011b\u017e (odpor, impedance) vy\u0161\u0161\u00ed, t\u00edm bude i ni\u017e\u0161\u00ed hlasitost sluch\u00e1tek. Nej\u010dast\u011bji jsou sluch\u00e1tka vyr\u00e1b\u011bna s\u00a0impedanc\u00ed 32 ohm. Kvalita poslechu je v\u0161ak d\u00e1na vy\u0161\u0161\u00ed impedanc\u00ed sluch\u00e1tek. Studiov\u00e1 sluch\u00e1tka se b\u011b\u017en\u011b vyr\u00e1b\u00ed s\u00a0impedanc\u00ed 150 \u2013 600 ohm, tomu tak\u00e9 odpov\u00edd\u00e1 jejich cena. Naopak oby\u010dejn\u00e1 \u201echrast\u00edtka\u201c pro p\u0159enosn\u00e9 MP3 p\u0159ehr\u00e1va\u010de a mobiln\u00ed telefony maj\u00ed impedanci jen kolem 20 ohm.\tZkreslen\u00ed sluch\u00e1tekJe to jeden z\u00a0parametr\u016f, kter\u00fd zna\u010d\u00ed pod\u00edl zkreslen\u00ed zvuku v\u00a0procentech. Pochopiteln\u011b, \u010d\u00edm men\u0161\u00ed procento, t\u00edm kvalitn\u011bj\u0161\u00ed poslech.\tCitlivost v decibelechJe to m\u00edra hlasitosti, kter\u00e1 je prim\u00e1rn\u011b z\u00e1visl\u00e1 na v\u00fdkonu zdroje p\u0159\u00edjmu zvuku. V podstat\u011b se jedn\u00e1 o objem akustick\u00e9 tlakov\u00e9 vlny v\u00a0ose reproduktor\u016f nebo sluch\u00e1tek.\u00a0 V\u00e1s bude zaj\u00edmat rozsah od 95 do 120 dB, p\u0159i\u010dem\u017e hodnota nad 100 dB ji\u017e ozna\u010duje velmi kvalitn\u00ed sluch\u00e1tka.\tV\u00fdkon sluch\u00e1tekV\u00fdkon uv\u00e1d\u011bn\u00fd v\u00a0mili wattech (mW) je schopnost sluch\u00e1tek (reproduktor\u016f) zvl\u00e1dnout ur\u010ditou z\u00e1t\u011b\u017e, kterou ud\u00e1v\u00e1 zesilova\u010d, v\u00a0tomto p\u0159\u00edpad\u011b MP3 p\u0159ehr\u00e1va\u010d, mobiln\u00ed telefon, mix\u00e1\u017en\u00ed pult, stereofonn\u00ed zesilova\u010d apod.)                                                                                                                                                                                                                                                                                                                                                                                        4.4\/5 - (11 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Technick\u00e9 parametry sluch\u00e1tek","item":"https:\/\/www.rekoscb.cz\/technicke-parametry-sluchatek\/#breadcrumbitem"}]}]