{"id":5595,"date":"2016-03-04T17:04:56","date_gmt":"2016-03-05T01:04:56","guid":{"rendered":"http:\/\/www.realhd-audio.com\/?p=5595"},"modified":"2016-03-05T11:33:22","modified_gmt":"2016-03-05T19:33:22","slug":"going-wireless-for-hra","status":"publish","type":"post","link":"https:\/\/www.realhd-audio.com\/?p=5595","title":{"rendered":"Going Wireless For HRA"},"content":{"rendered":"<p>This morning I head about a new Kickstarter campaign that is offering a wireless transmitter and receiver (with amplifier option) that purports to go beyond the limitations of WiFi and Bluetooth. Their innovative approach is called Dual Uncompressed Audio Link technology and it &#8220;truly delivers lossless 384KHz\/32bit audio quality to as many speakers as you can possibly imagine&#8221;. And once the signal is sent from one room to another, they needed an amplifier capable of &#8220;matching its muscle&#8221;. The associated amplifier delivers &#8220;true 5Hz ~ 200KHz sound quality that is absolutely perfect for vinyl&#8221;. These are real quotes from their project description. &#8220;Audiophiles everywhere rejoice! For the time has come for truly lossless high quality streaming audio&#8221;.<\/p>\n<p>I understand the need to get people excited about your new crowdsourcing campaign, but throwing about ridiculously high numbers is reaching a bit. Does anyone really think that they need an amplifier that claims a 5 Hz to 200 kHz frequency range is &#8220;perfect for vinyl?&#8221; The hype is excessive and unnecessary. But it dominates their promotional video and every paragraph of their written materials.<\/p>\n<p>The technical specifications include mention of the chips used which run up to 384 kHz and 32-bits. So I send along a question asking where I could find audio recordings made at that rate. To my surprise I received a KS message back from the company within a couple of hours directing me to the usual &#8220;high-resolution&#8221; digital music sites including HDtracks, PonoMusic, HighResAudio etc. When I pointed out that none of the tracks on these sites were recorded at 384 kHz\/32-bit, they didn&#8217;t respond. No big surprise there.<\/p>\n<p>Maybe a picture is worth a thousand words. Take a look at the following graphic that I pulled from their Kickstarter page:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.realhd-audio.com\/wp-content\/uploads\/2016\/03\/160302_bacon_ks.jpg\" alt=\"160302_bacon_ks\" width=\"600\" height=\"812\" class=\"alignnone size-full wp-image-5597\" srcset=\"https:\/\/www.realhd-audio.com\/wp-content\/uploads\/2016\/03\/160302_bacon_ks.jpg 600w, https:\/\/www.realhd-audio.com\/wp-content\/uploads\/2016\/03\/160302_bacon_ks-222x300.jpg 222w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>Figure 1 &#8211; AN illustration purporting to show the inherent benefits of 384 kHz\/32-bit digital audio. Everything in this image is misleading or wrong.<\/p>\n<p>How are we supposed to get behind their wireless strategy when they fail to understand the way PCM digital audio functions? The waveform at 384\/32 is virtually the same as the original smooth analog waveform. What happened to the conversion to a digital data stream? And then they proceed to show the stair steps of a CD, which doesn&#8217;t happen either. But the frequency plot is beyond imaginable. If we were to believe their graphics, we&#8217;ve been missing out on all of that fidelity above 20 kHz.<\/p>\n<p><strong>&#8220;As you can see from this image, the difference of quality between CD and HRA is immense. Compression is to blame in the huge loss of detail.&#8221;<\/strong><\/p>\n<p>The image is completely wrong. They&#8217;re wrong about the &#8220;immense&#8221; difference between a CD and a high-res music file and mentioning &#8220;compression&#8221; has no relevance.<\/p>\n<p>This company is trying to raise $200K over the next 43 days. 4 days into their campaign, they&#8217;ve managed to convince 20 people to back them&#8230;and 8 of them have pledged a dollar. It&#8217;s almost as if all you have to do is assemble a nice video, create some nice graphics, and spew a bunch of big numbers and then site back an watch the backers throw money at you.<\/p>\n<p>The only good thing I can say about this campaign is that I like the industrial design. Otherwise, I hope people will see past the hyperbole and avoid this product. I have purposely not provided a link, I don&#8217;t want to encourage visitors.  <\/p>\n","protected":false},"excerpt":{"rendered":"<p>This morning I head about a new Kickstarter campaign that is offering a wireless transmitter and receiver (with amplifier option)<\/p>\n","protected":false},"author":2,"featured_media":5599,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[45],"tags":[97,657,50,1041,83,40,1085,172,57,1089,1087,1032,1088,70,640,26,639,1043,980,1061,42,298,251,645,638,637,227,643,169,863,1026,1027,150,309,347,27,116,659,660,1086],"class_list":["post-5595","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dr_aixs_posts","tag-5-1-surround","tag-advanced-resolution","tag-aix-records","tag-analog-copies","tag-analog-tape","tag-analog-vs-digital","tag-audio-cables","tag-audio-resolution","tag-audio-specifications","tag-audio-wiring","tag-axpona-2016","tag-dvd_audio","tag-elco","tag-hd-downloads","tag-hd-music","tag-hd-audio","tag-hi-res-audio","tag-hi-res","tag-hi-res-music","tag-hi-res-sound","tag-high-resolution-audio","tag-high-res-music","tag-high-resolution","tag-high-resolution-audio-experience","tag-hires-audio","tag-hires-music","tag-hra","tag-hra-listening-experience","tag-mark-waldrep","tag-mobile-fidelity","tag-music-and-audio","tag-music-and-audio-a-user-guide-to-better-sound","tag-pcm","tag-snake-oil","tag-spectragram","tag-spectragraphs","tag-surround-music","tag-uhd-audio","tag-ultra-high-definition-audio","tag-usb-cables"],"_links":{"self":[{"href":"https:\/\/www.realhd-audio.com\/index.php?rest_route=\/wp\/v2\/posts\/5595","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.realhd-audio.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.realhd-audio.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.realhd-audio.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.realhd-audio.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5595"}],"version-history":[{"count":2,"href":"https:\/\/www.realhd-audio.com\/index.php?rest_route=\/wp\/v2\/posts\/5595\/revisions"}],"predecessor-version":[{"id":5600,"href":"https:\/\/www.realhd-audio.com\/index.php?rest_route=\/wp\/v2\/posts\/5595\/revisions\/5600"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.realhd-audio.com\/index.php?rest_route=\/wp\/v2\/media\/5599"}],"wp:attachment":[{"href":"https:\/\/www.realhd-audio.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5595"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.realhd-audio.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5595"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.realhd-audio.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5595"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}