{"id":907,"date":"2024-01-26T14:18:46","date_gmt":"2024-01-26T14:18:46","guid":{"rendered":"https:\/\/www.leaff.it\/new_site\/?page_id=907"},"modified":"2025-10-07T13:40:15","modified_gmt":"2025-10-07T12:40:15","slug":"percept","status":"publish","type":"page","link":"https:\/\/www.leaff.it\/?page_id=907","title":{"rendered":"PERCEPT"},"content":{"rendered":"\t\t
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A Tiny Bit of History<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Equalising room and loudspeaker response in the digital domain dates back to 80’s, but only recently, thanks to the increase of DSP processing power at affordable prices, it has became an attractive and widespread technology<\/span>. In Leaff it all started with s<\/span>mall acoustic spaces such as cars, helicopters and yacht cabins:\u00a0 harsh and challenging listening environments making it difficult for any sound system to perform decently. We needed a tool that could help any non-professional to get the best out of their installation in few minutes. I<\/span>n the early 2000s,\u00a0<\/span>\u00a0<\/span>PERCEPT\u00a0<\/span>algorithm began to take shape.<\/span>\u00a0<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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What is PERCEPT<\/i>?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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It falls within the category of Digital Room Correction algorithms. There is a big debate around DRC technology. Most highly-regarded systems on the market state they can turn “<\/span>any<\/b><\/span>” installation into a perfect listening room using advanced DSP techniques . Simply they can’t. Quoting  the eminent Dr. Floyd Toole…”<\/span>Sorry, but a small omni mic and an analyzer are not the equivalent of two ears and a brain<\/i>“. We absolutely agree and want to to make this clear…in the absence of comprehensive anechoic data on the loudspeakers, any blind auto equalization process may improve or may deteriorate the performance. Said that, there are situations where DRC techniques may help to cut tuning time dramatically.<\/p>\n

PERCEPT <\/i><\/b>can be summarized as a process that involves <\/span>collecting data<\/b> about the acoustic space, <\/span>analysing<\/b> such information and finally <\/span>generating a set of filters<\/b> to correct the response. <\/span>It’s important to note that a DRC solution usually allows for manual refinement (i.e. personalised target curves), so the term “system calibration” isn’t really appropriate: a subjective judgment based on a specific piece of audio can’t be said to be a generic solution.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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#1<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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SYSTEM SETUP<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t
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DATA ACQUISITION<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t
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#3<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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REAL TIME TUNING<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t
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How Do I Use PERCEPT?<\/i><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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PERCEPT<\/b> <\/i>can be run from within our “beindSP<\/span>“\u00a0tool <\/span>: when connected to one of our NU-Core based DSP modules, the procedure is smoothly controlled and tightly integrated with our hardware.<\/span><\/p>

If PERCEPT <\/i><\/b>is to be used on a new design, we can customise the entire process, integrating the commands into the product firmware, developing software interfaces to match the company’s look and feel, and creating any customisation that may be required.\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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<\/i><\/b>Major Features of PERCEPT 3.0<\/i><\/span>
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    \n
  • Single or multipoint (2D\/3D) setup<\/span><\/li>\n
  • Time-frequency analysis<\/span><\/li>\n
  • Psychoacoustic based analysis<\/span><\/li>\n
  • New and improved impulse responses optimization<\/li>\n
  • Phase linearization<\/li>\n
  • Target curve (free drawing mode, save, load)<\/li>\n
  • Subwoofer cross-over optimization (time-frequency)<\/li>\n
  • Up to 9.1.6 channels Dolby Atmos setups*<\/li>\n
  • Atmos Bass management*<\/li>\n
  • Multiway setups (in-car, high-end home systems)* <\/li>\n
  • Filter output: FIR, IIR, Mixed<\/li>\n
  • Scalable complexity <\/li>\n<\/ul>\n

     * Depending on product integration.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

    A Tiny Bit of History Equalising room and loudspeaker response in the digital domain dates […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"no-sidebar","site-content-layout":"page-builder","ast-site-content-layout":"full-width-container","site-content-style":"unboxed","site-sidebar-style":"unboxed","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","theme-transparent-header-meta":"enabled","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-907","page","type-page","status-publish","hentry"],"rttpg_featured_image_url":null,"rttpg_author":{"display_name":"LeaffAdmin","author_link":"https:\/\/www.leaff.it\/?author=1"},"rttpg_comment":0,"rttpg_category":null,"rttpg_excerpt":"A Tiny Bit of History Equalising room and loudspeaker response in the digital domain dates […]","_links":{"self":[{"href":"https:\/\/www.leaff.it\/index.php?rest_route=\/wp\/v2\/pages\/907","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.leaff.it\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.leaff.it\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.leaff.it\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.leaff.it\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=907"}],"version-history":[{"count":427,"href":"https:\/\/www.leaff.it\/index.php?rest_route=\/wp\/v2\/pages\/907\/revisions"}],"predecessor-version":[{"id":8700,"href":"https:\/\/www.leaff.it\/index.php?rest_route=\/wp\/v2\/pages\/907\/revisions\/8700"}],"wp:attachment":[{"href":"https:\/\/www.leaff.it\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=907"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}