{"id":338,"date":"2011-08-08T15:48:58","date_gmt":"2011-08-08T14:48:58","guid":{"rendered":"http:\/\/blogjam.name\/sid\/?page_id=338"},"modified":"2011-09-20T11:38:32","modified_gmt":"2011-09-20T10:38:32","slug":"amplitude","status":"publish","type":"page","link":"http:\/\/blogjam.name\/sid\/?page_id=338","title":{"rendered":":Amplitude:"},"content":{"rendered":"<p>Pronunciation <strong>GB<\/strong>: <span style=\"color: navy;\"><strong>\u02c8\u00e6mpl\u026atju\u02d0d<\/strong><\/span>, <strong>GA<\/strong>: <span style=\"color: navy;\"><strong>\u02c8\u00e6mpl\u026atu\u02d0d<\/strong><\/span><\/p>\n<p>The extent of pressure variation above or below atmospheric pressure during the production of a sound. Various measures of amplitude are possible:<\/p>\n<ul>\n<li><strong>Peak amplitude<\/strong>: See 1 in the diagram below.<\/li>\n<li><strong>Peak-to-peak amplitude<\/strong>: See 2 in the diagram below<\/li>\n<li><strong>Root-mean-square (RMS) amplitude<\/strong>: This is calculated from a sampled portion of the waveform according to the formula <br \/><center><img src=\"rms_form.JPG\" alt=\"\" \/><\/center><br \/>where <em>N<\/em> is the total number of samples and <em>x<sub>i<\/sub><\/em> is the amplitude of the <em>i <\/em>th sample<\/li>\n<\/ul>\n<hr>\n<p><center><img src=\"rms_amp.JPG\" alt=\"\" \/><\/center><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pronunciation GB: \u02c8\u00e6mpl\u026atju\u02d0d, GA: \u02c8\u00e6mpl\u026atu\u02d0d The extent of pressure variation above or below atmospheric pressure during the production of a sound. Various measures of amplitude are possible: Peak amplitude: See 1 in the diagram below. Peak-to-peak amplitude: See 2 in &hellip; <a href=\"http:\/\/blogjam.name\/sid\/?page_id=338\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":118,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"http:\/\/blogjam.name\/sid\/index.php?rest_route=\/wp\/v2\/pages\/338"}],"collection":[{"href":"http:\/\/blogjam.name\/sid\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/blogjam.name\/sid\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/blogjam.name\/sid\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/blogjam.name\/sid\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=338"}],"version-history":[{"count":8,"href":"http:\/\/blogjam.name\/sid\/index.php?rest_route=\/wp\/v2\/pages\/338\/revisions"}],"predecessor-version":[{"id":449,"href":"http:\/\/blogjam.name\/sid\/index.php?rest_route=\/wp\/v2\/pages\/338\/revisions\/449"}],"up":[{"embeddable":true,"href":"http:\/\/blogjam.name\/sid\/index.php?rest_route=\/wp\/v2\/pages\/118"}],"wp:attachment":[{"href":"http:\/\/blogjam.name\/sid\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=338"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}