{"id":4203,"date":"2018-09-24T01:00:50","date_gmt":"2018-09-23T22:00:50","guid":{"rendered":"http:\/\/www.ufukonen.com\/tr\/?p=4203"},"modified":"2018-09-23T14:21:28","modified_gmt":"2018-09-23T11:21:28","slug":"ses-seviyesi-a-c-weighting","status":"publish","type":"post","link":"https:\/\/www.ufukonen.com\/tr\/ses-seviyesi-a-c-weighting.html","title":{"rendered":"Ses Bas\u0131n\u00e7 Seviyesi \u00d6l\u00e7\u00fcmleri: A-Weighting ve C-Weighting Dengeleri"},"content":{"rendered":"

\"\"<\/p>\n

Ses ve ses cihazlar\u0131 ile ilgili \u00f6l\u00e7\u00fcmler yap\u0131l\u0131rken al\u0131nan sonu\u00e7lar genelde insan kula\u011f\u0131n\u0131n hassasiyeti ve insan\u0131n alg\u0131s\u0131 ile uyu\u015fmaz. Bu sebepten dolay\u0131, \u00f6zellikle ses \u015fiddeti ile ilgili \u00f6l\u00e7\u00fcmlerde, farkl\u0131 frekans dengesi i\u00e7eren metotlar kullan\u0131l\u0131r. Bu dengeler ‘weighting’ olarak adland\u0131r\u0131l\u0131r. Ses seviyesi (ya da daha do\u011fru bir ifade ile ses bas\u0131n\u00e7 seviyesi) \u00f6l\u00e7\u00fcmlerinde standart olarak kullan\u0131lan iki farkl\u0131 denge vard\u0131r: A\u2013weighting ve C\u2013weighting.<\/p>\n

 <\/p>\n

A\u2013Weighting Dengesi<\/h3>\n

A\u2013weighting dengesi Fletcher-Munson equal loudness contours \u00e7izelgesindeki 1 kHz\u2019de 30 dB SPL\u2019e (ya da 30 phon\u2019a) denk gelen e\u011frinin tam tersidir. A\u2013weighting dengesi d\u00fc\u015f\u00fck seviyelerde insan\u0131n alg\u0131lad\u0131\u011f\u0131 ses seviyesine e\u015f de\u011ferdir, bu sebepten dolay\u0131 A\u2013weighting d\u00fc\u015f\u00fck seviyelerin \u00f6l\u00e7\u00fcm\u00fc i\u00e7in idealdir.<\/p>\n

Belediyeler ve benzeri kurumlarca yap\u0131lan g\u00fcr\u00fclt\u00fc \u00f6l\u00e7\u00fcmlerinde A\u2013weighting dengesi kullan\u0131l\u0131r.\u00a0Y\u00fcksek ses seviyelerinde A\u2013weighting ile yap\u0131lan \u00f6l\u00e7\u00fcmler C\u2013weighting ile yap\u0131lan \u00f6l\u00e7\u00fcmlere g\u00f6re daha d\u00fc\u015f\u00fck de\u011ferler verir.<\/p>\n

\"\"<\/a>

A-Weighting Dengesi<\/p><\/div>\n

 <\/p>\n

C\u2013Weighting Dengesi<\/h3>\n

Fletcher-Munson e\u011frilerini inceledi\u011fimizde ses \u015fiddeti artt\u0131k\u00e7a farkl\u0131 frekanslarda alg\u0131lanan ses seviye de\u011ferlerinin birbirlerine yakla\u015ft\u0131\u011f\u0131n\u0131, di\u011fer bir deyi\u015fle alg\u0131lanan seviyelerin ‘flat’ h\u00e2le yak\u0131nla\u015ft\u0131\u011f\u0131n\u0131 g\u00f6r\u00fcyoruz. Bu sebepten dolay\u0131 y\u00fcksek seviyelerdeki ses \u00f6l\u00e7\u00fcmlerinde C\u2013weighting dengesini kullanmak daha mant\u0131kl\u0131d\u0131r. C\u2013weighting dengesi flat bir dengeye sahiptir; 31.5 Hz ve 8 kHz noktalar\u0131nda \u20133 dB de\u011ferinde d\u00fc\u015f\u00fc\u015f g\u00f6sterir. Sinema ses sistemleri ve st\u00fcdyo monit\u00f6rlerinin kalibrasyonu i\u00e7in\u00a0C\u2013weighting dengesi kullan\u0131lmaktad\u0131r.<\/p>\n

\"\"<\/a>

C-Weighting Dengesi<\/p><\/div>\n

 <\/p>\n

dB(A) ve dB(C)<\/h3>\n

A\u2013weighting ile yap\u0131lan \u00f6l\u00e7\u00fcmler \u201cdB SPL (A\u2013weighting)\u201d ya da k\u0131saca \u201cdB(A)\u201d; C\u2013weighting ile yap\u0131lan \u00f6l\u00e7\u00fcmler ise \u201cdB SPL (C\u2013weighting)\u201d veya k\u0131saca \u201cdB(C)\u201d olarak belirtilir.<\/p>\n

 <\/p>\n

Ses Bas\u0131n\u00e7 Seviyesi \u00d6l\u00e7\u00fcm Cihaz\u0131<\/h3>\n

Ses seviyesi (dB SPL) \u00f6l\u00e7\u00fcmleri \u0130ngilizcede ‘dB SPL meter’ ya da ‘sound level meter’ olarak adland\u0131r\u0131lan cihazlar ile yap\u0131l\u0131r.<\/p>\n

\"\"

NTi XL2 (foto\u011fraf NTi Audio web sitesinden al\u0131nm\u0131\u015ft\u0131r)<\/p><\/div>\n

 <\/p>\n

iPhone \u00fczerinde \u00e7al\u0131\u015fan ses bas\u0131n\u00e7 seviyesi \u00f6l\u00e7me programlar\u0131, profesyonel cihazlar ile yap\u0131lan \u00f6l\u00e7\u00fcmlere yak\u0131n sonu\u00e7lar verebilmektedir. Ben profesyonel i\u015fler i\u00e7in NTi firmas\u0131n\u0131n XL2 kodlu cihaz\u0131n\u0131 (T\u00fcrkiye distrib\u00fct\u00f6r\u00fc SF Ses ve I\u015f\u0131k Sistemleri<\/a>), telefonum ile yapt\u0131\u011f\u0131m \u00f6l\u00e7\u00fcmler i\u00e7in de \u00a0Decibel X adl\u0131 uygulamay\u0131 tercih ediyorum. Decibel X’i \u00fccretsiz olarak indirmek i\u00e7in buraya t\u0131klay\u0131n\u0131z<\/a>.<\/p>\n

\"\"

Decibel X<\/p><\/div>\n

 <\/p>\n

Teknik terimler i\u00e7in m\u00fczik teknolojisi, m\u00fczik prod\u00fcksiyonu ve ses kay\u0131t terimleri s\u00f6zl\u00fc\u011f\u00fcne<\/a> g\u00f6z atabilirsiniz.<\/p>\n

Benzer payla\u015f\u0131mlar i\u00e7in beni Facebook<\/a> ve Twitter<\/a>‘da takip edebilir, haberler i\u00e7in mesaj listeme \u00fcye olabilirsiniz<\/a>. Te\u015fekk\u00fcrler.<\/p>\n

Ba\u015fl\u0131k foto\u011fraf\u0131: Sasint<\/a> | Pixabay<\/a><\/p>\n

NTi XL2 foto\u011fraf\u0131 NTi Audio web sitesinden<\/a> al\u0131nm\u0131\u015ft\u0131r |\u00a0T\u00fcrkiye distrib\u00fct\u00f6r\u00fc:\u00a0SF Ses ve I\u015f\u0131k Sistemleri<\/a><\/p>\n

A-Weighting ve C-Weighting e\u011frilerinin \u00e7izimleri Ses Kay\u0131t ve M\u00fczik Teknolojileri<\/a> adl\u0131 kitab\u0131mdan al\u0131nm\u0131\u015ft\u0131r.<\/p>\n

\u00a9 2018 Ufuk \u00d6nen. Her hakk\u0131 sakl\u0131d\u0131r. \u0130zinsiz kullan\u0131lamaz.<\/p>\n","protected":false},"excerpt":{"rendered":"

Ses ve ses cihazlar\u0131 ile ilgili \u00f6l\u00e7\u00fcmler yap\u0131l\u0131rken al\u0131nan sonu\u00e7lar genelde insan kula\u011f\u0131n\u0131n hassasiyeti ve insan\u0131n alg\u0131s\u0131 ile uyu\u015fmaz. Bu…<\/p>\n","protected":false},"author":2,"featured_media":4210,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"spay_email":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true},"categories":[18],"tags":[],"jetpack_featured_media_url":"https:\/\/www.ufukonen.com\/tr\/wp-content\/uploads\/Ses_Basinc_Seviyesi_A-C-Weighting.jpg","jetpack_publicize_connections":[],"jetpack_shortlink":"https:\/\/wp.me\/p3rjsG-15N","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":4820,"url":"https:\/\/www.ufukonen.com\/tr\/mikrofonlar-equivalent-noise-level.html","url_meta":{"origin":4203,"position":0},"title":"Mikrofonlar ve Equivalent Noise Level","date":"May 27, 2019","format":false,"excerpt":"'Equivalent noise level' ya da di\u011fer ad\u0131yla 'equivalent self rating', basit\u00e7e mikrofonun kendi dip g\u00fcr\u00fclt\u00fcs\u00fc olarak tan\u0131mlanabilir. Bu sebepten dolay\u0131 'self noise' olarak da bilinir. Self noise, mikrofonun diyafram\u0131na ula\u015fan herhangi bir ses dalgas\u0131 olmasa bile mikrofonun \u00e7\u0131k\u0131\u015f\u0131nda hep vard\u0131r. Mikrofonlarda farkl\u0131 sebeplerden dolay\u0131 olu\u015fan farkl\u0131 tip dip g\u00fcr\u00fclt\u00fcler olur:\u2026","rel":"","context":"In "Ses ve M\u00fczik Teknolojileri"","img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.ufukonen.com\/tr\/wp-content\/uploads\/Mikrofon_Equivalent_Noise_Level.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":4836,"url":"https:\/\/www.ufukonen.com\/tr\/mikrofonlar-signal-to-noise-ratio.html","url_meta":{"origin":4203,"position":1},"title":"Mikrofonlar ve Signal-to-Noise Ratio","date":"June 3, 2019","format":false,"excerpt":"Bir \u00f6nceki hafta mikrofonlar\u0131n kendi dip g\u00fcr\u00fclt\u00fcleri ile ilgili \"Mikrofonlar ve Equivalent Noise Level\" ba\u015fl\u0131kl\u0131 bir yaz\u0131 yazm\u0131\u015f, 'self noise' olarak da bilinen bu g\u00fcr\u00fclt\u00fclerin neden olu\u015ftu\u011funu ve nas\u0131l \u00f6l\u00e7\u00fcld\u00fc\u011f\u00fcn\u00fc anlatm\u0131\u015ft\u0131m. 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B\u00f6l\u00fcm)","date":"November 5, 2018","format":false,"excerpt":"Bu yaz\u0131 dizisi \u00fc\u00e7 b\u00f6l\u00fcmden olu\u015fmaktad\u0131r. \u0130kinci b\u00f6l\u00fcm i\u00e7in t\u0131klay\u0131n\u0131z. \u00dc\u00e7\u00fcnc\u00fc b\u00f6l\u00fcm i\u00e7in t\u0131klay\u0131n\u0131z. \u00a0 St\u00fcdyo monit\u00f6rlerinin kalibrasyonu arkas\u0131nda yatan mant\u0131k asl\u0131nda sinema end\u00fcstrisine dayanmaktad\u0131r. Filmlerin st\u00fcdyolarda yap\u0131lan ses miksleri, st\u00fcdyo ve sinema salonlar\u0131 aras\u0131ndaki ses seviyesi farkl\u0131l\u0131klar\u0131ndan dolay\u0131 ama\u00e7land\u0131\u011f\u0131 gibi duyulmuyordu. 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Birinci b\u00f6l\u00fcm i\u00e7in t\u0131klay\u0131n\u0131z. \u0130kinci b\u00f6l\u00fcm i\u00e7in t\u0131klay\u0131n\u0131z. \u00a0 K\u00fc\u00e7\u00fck St\u00fcdyolar, Televizyon ve Video \u0130\u00e7in Kalibrasyon Seviyeleri K\u00fc\u00e7\u00fck st\u00fcdyolar ve evler i\u00e7in haz\u0131rlanan televizyon ve video programlar\u0131 i\u00e7in kalibrasyon seviyeleri biraz daha farkl\u0131. 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