Sabis na ƙwaƙwalwar sauti da kuma dalilin da ya sa yake da matsala

Kila ka ga samfurin samfurin da aka lissafa, ko watakila ma ya ji ko karanta tattaunawa game da fasalin sigina. Sau da yawa an rage shi azaman SNR ko S / N, wannan ƙayyadewa zai iya zama abin ƙyama ga talakawan mabukaci. Duk da yake matsa a bayan siginar siginar-sautin shi ne fasaha, manufar ba ita ce ba, kuma darajan wannan zai iya tasiri kyakkyawan sauti na tsarin.

Lambar Siginar Ƙaddamarwa da aka Yi Magana

Yanayin siginar-mota yana kwatanta matakin ƙarfin sigina zuwa matakin ƙarfin murmushi. An fi sau da yawa aka nuna shi a matsayin auna na decibels (dB) . Lambobi mafi girma suna nufin ƙayyadewa mafi kyau, tun da akwai ƙarin bayani mai amfani (siginar) fiye da akwai bayanan da ba a so ba (bugu).

Alal misali, lokacin da wani ɓangaren murya ya ƙunshi siginar sigina na 100 dB, yana nufin cewa matakin siginar sauti shine 100 dB mafi girma fiye da matakin muryar. Bayanan fasalin sigina na 100 dB yana da kyau fiye da ɗaya wanda yake 70 dB (ko žasa).

Don zane, bari mu ce kuna tattaunawa da wani a cikin ɗakin abincin da ya faru da samun firiji mai mahimmanci. Bari mu kuma ce firiji na haifar da 50 dB na hum (la'akari da wannan a matsayin motsi) yayin da yake riƙe da abinda ke cikin sanyi-babbar firiji. Idan mutumin da kake magana da shi ya zaɓa ya yi magana a cikin raɗaɗɗa (la'akari da wannan a matsayin alamar) a 30 dB, ba za ku iya ji kalma guda ba saboda kullin firiji ya shafe shi! Don haka, ka tambayi mutumin ya yi magana da ƙarfi, amma ko da a 60 dB, har yanzu ana iya tambayar su su sake maimaita abubuwa. Da yake jawabi a 90 dB na iya zama alama kamar wasa, amma a kalla kalmomi za a fahimta sosai. Wannan shine ra'ayin bayan siginar sigina-to-noise.

Me yasa Shirye-shiryen Bincike na Muhimmiyar Muhimmanci ne

Za'a iya samo bayani game da ragowar siginar murya a yawancin samfurori da aka gyara wanda ke magance sauti kamar masu magana, wayar hannu (mara waya ko in ba haka ba), masu kunne, microphones, amplifiers , receivers, turbibles, radios, CD / DVD / PC sauti katunan, wayowin komai da ruwan, Allunan, da sauransu. Duk da haka, ba duka masana'antun sunyi darajar wannan darajar ba.

Ainihin motsa jiki yana kasancewa a matsayin launin fata ko kayan lantarki ko tsaka-tsalle, ko hum mai sauƙi ko tsinkaye. Crank ƙarar masu magana a duk hanyar haɓaka yayin da babu abin da ke wasa-idan kun ji sauti, wannan muryar ce, wanda ake kira "filin sauti." Kamar firiji a cikin bayanin da aka fada a baya, wannan filin bashi yana koyaushe.

Dangane da siginar mai shigowa yana da karfi kuma sama da saman ƙasa, to, murya zai iya kula da mafi girma. Wannan shi ne irin kyakkyawar sakonnin sakonni-da-noise da mutane suka fi so don sauti mai tsabta.

Amma idan siginar ya kasance mai rauni, wasu za suyi tunani don kawai ƙara ƙarar don ƙara bunkasa fitarwa. Abin baƙin ciki, daidaitawa ƙarar sama da ƙasa yana rinjayar duka murmushi da sigina. Kiɗa na iya ƙara ƙarfafawa, amma haka zai zama maɗaukaki. Kuna buƙatar ƙarfafa ƙarfin sigina na tushen don cimma burin da ake so. Wasu na'urori suna ƙunshe da kayan aiki da / ko abubuwan software waɗanda aka tsara don inganta fasalin sigina-rikitarwa.

Abin takaici, duk kayan aiki, har ma da igiyoyi, ƙara ƙarar murya zuwa sigina. Ya fi kyau waɗanda aka tsara don ci gaba da ƙwaƙwalwar ƙasa a matsayin ƙananan ƙarancin yadda zai yiwu don kara yawan rabo. Ayyukan Analog, irin su amplifiers da turntables, yawanci suna da ƙananan siginar ƙararrawa fiye da na'urorin dijital.

Yana da kyau daraja kauce wa samfurori tare da matalauta mararrawa sigina. Duk da haka, ba a yi amfani da ragowar siginar murya-kira-mota azaman kawai ƙayyadewa don auna girman sauti na kayan. Dole ne kuma a yi la'akari da yadda za a yi amfani da karɓan lokaci da kuma jituwa tare .