{"id":506938,"date":"2024-11-05T13:55:57","date_gmt":"2024-11-05T13:55:57","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/as-nzs-iso-8253-22019\/"},"modified":"2024-11-05T13:55:57","modified_gmt":"2024-11-05T13:55:57","slug":"as-nzs-iso-8253-22019","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/as\/as-nzs-iso-8253-22019\/","title":{"rendered":"AS\/NZS ISO 8253.2:2019"},"content":{"rendered":"<p>The objective of this Standard is to specify relevant test signal characteristics, requirements for free, diffuse, and quasi-free sound fields, and procedures for sound field audiometry using pure tones, frequency-modulated tones or other narrow-band test signals presented by means of one or more loudspeakers. <\/p>\n<p><b>Scope<\/b><\/p>\n<p> This part of ISO 8253 specifies relevant test signal characteristics, requirements for free, diffuse, and quasi-free sound fields, and procedures for sound field audiometry using pure tones, frequency-modulated tones or other narrow-band test signals presented by means of one or more loudspeakers. The primary purpose is the determination of hearing threshold levels in the frequency range 125 Hz to 8 000 Hz, but this range can be extended to 20 Hz to 16 000 Hz. <br \/> This part of ISO 8253 does not include specifications for the use of hand-held loudspeakers. Speech as a test signal is not covered. <br \/> The purpose of this part of ISO 8253 is to ensure that tests of hearing, using sound field audiometry, give as high a degree of accuracy and reproducibility as possible. <br \/> Examples of graphical representations of the results are given in Annex A.<\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Acoustics &#8211; Audiometric test methods &#8211; Sound field audiometry with pure-tone and narrow-band test signals<\/b><\/p>\n<table style=\"width: 100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>Published By<\/td>\n<td>Publication Date<\/td>\n<td>Number of Pages<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pdfstandards.shop\/product-category\/publishers\/as\/\"><b>AS<\/b><\/a><\/td>\n<td>2019-03-11<\/td>\n<td>27<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":506953,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[231,2633],"product_tag":[],"class_list":{"0":"post-506938","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-13-140","7":"product_cat-as","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/506938","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/506953"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=506938"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=506938"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=506938"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}