{"id":364,"date":"2010-09-21T17:27:59","date_gmt":"2010-09-21T23:27:59","guid":{"rendered":"http:\/\/blog.faberacoustical.com\/?p=364"},"modified":"2014-02-28T12:41:01","modified_gmt":"2014-02-28T18:41:01","slug":"guitarjack-rocks-3rd-gen-iphone-and-ipod-touch","status":"publish","type":"post","link":"https:\/\/blog.faberacoustical.com\/wpblog\/2010\/ios\/iphone\/guitarjack-rocks-3rd-gen-iphone-and-ipod-touch\/","title":{"rendered":"GuitarJack Rocks 3rd Gen iPhone and iPod touch"},"content":{"rendered":"<p>While the <a href=\"http:\/\/www.sonomawireworks.com\/guitarjack\/\" target=\"_blank\">GuitarJack<\/a>, from Sonoma Wire Works, was obviously designed with music recording in mind, it also works well as an I\/O interface for test and measurement apps, like <a href=\"http:\/\/click.linksynergy.com\/fs-bin\/stat?id=CGm2XgsdXYg&#038;offerid=146261&#038;type=3&#038;subid=0&#038;tmpid=1826&#038;RD_PARM1=http%253A%252F%252Fitunes.apple.com%252Fus%252Fapp%252Fsignalscope-pro%252Fid316467618%253Fmt%253D8%2526uo%253D6%2526partnerId%253D30\" target=\"_blank\">SignalScope Pro<\/a> and <a href=\"http:\/\/click.linksynergy.com\/fs-bin\/stat?id=CGm2XgsdXYg&#038;offerid=146261&#038;type=3&#038;subid=0&#038;tmpid=1826&#038;RD_PARM1=http%253A%252F%252Fitunes.apple.com%252Fus%252Fapp%252Fioscope%252Fid327376319%253Fmt%253D8%2526uo%253D6%2526partnerId%253D30\" target=\"_blank\">IOScope<\/a>. The GuitarJack, and the iAudioInterface from Studio Six Digital, are the only two iPod accessories I&#8217;m aware of that properly support both line level input and output via the 30-pin dock connector of iPhone and iPod touch devices. (The Alesis ProTrack supports line-level input and output, but not both simultaneously.)<\/p>\n<p style=\"text-align: center;\"><a href=\"http:\/\/www.faberacoustical.com\/wpblog\/wp-content\/uploads\/2010\/09\/GuitarJack.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-368 aligncenter\" title=\"GuitarJack\" src=\"http:\/\/www.faberacoustical.com\/wpblog\/wp-content\/uploads\/2010\/09\/GuitarJack.jpg\" alt=\"GuitarJack and iPod touch 3G\" width=\"576\" height=\"281\" \/><\/a><\/p>\n<p><strong>GuitarJack In Brief<\/strong><\/p>\n<ul>\n<li>Simultaneous stereo line-level input and output<\/li>\n<li>Compatible with 2nd and 3rd generation iPhone and iPod touch devices (Sonoma recommends using Airplane mode when using GuitarJack with an iPhone. Also, I had success using GuitarJack with the 1st generation iPhone and the 1st generation iPod touch, although I noticed that the GuitarJack&#8217;s low frequency rolloff was worse with those devices.)<\/li>\n<li>High-impedance input available<\/li>\n<li>Software-programmable input gain (Currently, gain settings are only accessible from within Sonoma&#8217;s FourTrack iPhone app.)<\/li>\n<li>Reasonably flat frequency response over the audio band<\/li>\n<li>Built to last (Its case is metal instead of flimsy plastic, like so many other iPod accessories.)<\/li>\n<\/ul>\n<p><strong>GuitarJack Frequency Response<\/strong><\/p>\n<p>The following plots of GuitarJack&#8217;s frequency response were produced with <a href=\"http:\/\/click.linksynergy.com\/fs-bin\/stat?id=CGm2XgsdXYg&#038;offerid=146261&#038;type=3&#038;subid=0&#038;tmpid=1826&#038;RD_PARM1=http%253A%252F%252Fitunes.apple.com%252Fus%252Fapp%252Fioscope%252Fid327376319%253Fmt%253D8%2526uo%253D6%2526partnerId%253D30\" target=\"_blank\">IOScope<\/a> running on an iPod touch 3G. It&#8217;s important to note that these measurements include the response of both the output and input circuitry.<\/p>\n<div style=\"width: 100%; float: left;\">\n<div id=\"attachment_371\" style=\"width: 178px\" class=\"wp-caption alignleft\"><a href=\"http:\/\/www.faberacoustical.com\/wpblog\/wp-content\/uploads\/2010\/09\/IMG_0020.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-371\" class=\"size-full wp-image-371        \" title=\"1\/4\" Hi-Z Input Response\" src=\"http:\/\/www.faberacoustical.com\/wpblog\/wp-content\/uploads\/2010\/09\/IMG_0020.jpg\" alt=\"\" width=\"168\" height=\"105\" \/><\/a><p id=\"caption-attachment-371\" class=\"wp-caption-text\">1\/4<\/p><\/div>\n<div id=\"attachment_372\" style=\"width: 178px\" class=\"wp-caption alignleft\"><a href=\"http:\/\/www.faberacoustical.com\/wpblog\/wp-content\/uploads\/2010\/09\/IMG_0021.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-372\" class=\"size-full wp-image-372        \" title=\"1\/4\" Lo-Z Input Response\" src=\"http:\/\/www.faberacoustical.com\/wpblog\/wp-content\/uploads\/2010\/09\/IMG_0021.jpg\" alt=\"1\/4\" Lo-Z Input Response\" width=\"168\" height=\"105\" \/><\/a><p id=\"caption-attachment-372\" class=\"wp-caption-text\">1\/4<\/p><\/div>\n<div id=\"attachment_373\" style=\"width: 178px\" class=\"wp-caption alignleft\"><a href=\"http:\/\/www.faberacoustical.com\/wpblog\/wp-content\/uploads\/2010\/09\/IMG_0022.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-373\" class=\"size-full wp-image-373        \" title=\"1\/8\" Input Response\" src=\"http:\/\/www.faberacoustical.com\/wpblog\/wp-content\/uploads\/2010\/09\/IMG_0022.jpg\" alt=\"1\/8\" Input Response\" width=\"168\" height=\"105\" \/><\/a><p id=\"caption-attachment-373\" class=\"wp-caption-text\">1\/8<\/p><\/div>\n<\/div>\n<p>The frequency response magnitude is down by 2.6 dB at 20 Hz, relative to 1 kHz, when working with the 1\/8&#8243; input or the 1\/4&#8243; input in Lo-Z mode. As can be seen in the plots, the Hi-Z mode produces more low-frequency rolloff than the Lo-Z mode (its response is down by about 3 dB at 40 Hz). The GuitarJack rolls off the low end more than I would like, but it&#8217;s response is still pretty good for an iPod accessory.<\/p>\n<p>GuitarJack is not compatible with iPhone 4, iPad, or iPod touch 4G. Fortunately, Sonoma appears to be working on a solution for the new iOS devices with <a href=\"http:\/\/www.sonomawireworks.com\/guitarjack\/upgrade\/\" target=\"_blank\">model 2<\/a>.<\/p>\n<p>GuitarJack is available now for $199.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>While the GuitarJack, from Sonoma Wire Works, was obviously designed with music recording in mind, it also works well as an I\/O interface for test and measurement apps, like SignalScope Pro and IOScope.<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[72,3],"tags":[28,15,19,98,9,30,29],"class_list":["post-364","post","type-post","status-publish","format-standard","hentry","category-hardware","category-iphone","tag-audio","tag-frequency-response","tag-ioscope","tag-iphone","tag-ipod-touch","tag-measurement","tag-test"],"_links":{"self":[{"href":"https:\/\/blog.faberacoustical.com\/wpblog\/wp-json\/wp\/v2\/posts\/364","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.faberacoustical.com\/wpblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.faberacoustical.com\/wpblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.faberacoustical.com\/wpblog\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.faberacoustical.com\/wpblog\/wp-json\/wp\/v2\/comments?post=364"}],"version-history":[{"count":26,"href":"https:\/\/blog.faberacoustical.com\/wpblog\/wp-json\/wp\/v2\/posts\/364\/revisions"}],"predecessor-version":[{"id":945,"href":"https:\/\/blog.faberacoustical.com\/wpblog\/wp-json\/wp\/v2\/posts\/364\/revisions\/945"}],"wp:attachment":[{"href":"https:\/\/blog.faberacoustical.com\/wpblog\/wp-json\/wp\/v2\/media?parent=364"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.faberacoustical.com\/wpblog\/wp-json\/wp\/v2\/categories?post=364"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.faberacoustical.com\/wpblog\/wp-json\/wp\/v2\/tags?post=364"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}