{"id":3457,"date":"2019-06-09T10:58:03","date_gmt":"2019-06-09T08:58:03","guid":{"rendered":"https:\/\/demdlx704as001.ad.harman.com\/?p=3457"},"modified":"2020-04-12T21:47:49","modified_gmt":"2020-04-12T19:47:49","slug":"eq-panel","status":"publish","type":"post","link":"https:\/\/audioworx.transfunnel.co\/old\/?p=3457","title":{"rendered":"bass enhancer"},"content":{"rendered":"

The EqPanel can be used to apply Biquad filters to the signal.\u00a0 This panel is launched for Normal biquad object and Parameter biquad audio object with different modes.\u00a0 In the case of Parameter one modes,\u00a0 there will be no channel selections as the same biquad parameters is applied to all the other channels inside the device.<\/p>\n

\"EQ
EQ Panel<\/figcaption><\/figure>\n

Channel List<\/p>\n

You can select a channel for the current core from a list on the top left of the EqPanel.<\/p>\n

\"EQ
EQ Panel: Channel List<\/figcaption><\/figure>\n

The current channel is marked with a green square and its number is displayed in the header of the channel list.<\/p>\n

EQ Chart<\/p>\n

This chart represents the influence of all Biquads on the frequency and phase response. The left axis shows the amplitude in dB, and the right axis shows the phase in degrees.<\/p>\n

The number of Biquads are defined with the Signal Flow Designer. The Biquads get dynamically managed inside the GTT. Most of the Biquads are represented by appropriate markers.<\/p>\n

\"EQ
EQ Chart<\/figcaption><\/figure>\n

Markers<\/p>\n

Markers are movable. Moving them allows you to amend the current Biquad parameters. Each marker corresponds to one or two Biquad parameters. For example, the equalizer shown below has three markers.<\/p>\n

\"EQ
EQ Panels: Marker<\/figcaption><\/figure>\n

Biquad Settings<\/p>\n

\"Biquad
Biquad Settings<\/figcaption><\/figure>\n

In the Biquad settings you can:<\/p>\n

change the Frequency<\/em>, Gain<\/em> and Quality<\/em><\/p>\n

Frequency<\/em> <\/span>is used to set the center frequency of each filter.<\/p>\n

Gain<\/em> <\/span>is used to set the center frequency gain of each band of the filter. Not all filter types offer a variable gain.<\/p>\n

Quality<\/em> <\/span>is used to set the width of each band pass or notch type band of the filter. Not all filter types offer a variable quality factor.<\/p>\n

Change\/remove a Biquad<\/p>\n

Change\/Remove Biquad<\/p>\n

\"Biquad
Biquad Filer Menu<\/figcaption><\/figure>\n

The Biquad Filter Menu shows a list of all Biquads that are set up in the amplifier for the current channel.<\/p>\n

You can change the Biquad type or remove the Biquad by setting it to Bypass (at top of the list).<\/p>\n

You cannot add new filters to the EQ Panel. All available filters are added and bypassed at panel startup.<\/p>\n

Biquad Chart Type Bar<\/p>\n

\"EQ
EQ Panel: Chart Type Bar<\/figcaption><\/figure>\n

Click on Chart Type<\/em>.<\/p>\n

The Chart Type bar will be opened.<\/p>\n

\"Chart
Chart Type Bar<\/figcaption><\/figure>\n

The Amplitude phase<\/em><\/span> is used to turn on and off appropriate charts.<\/p>\n

Phase unwrapped<\/em><\/span> is displayed in absolute values. If the phase is wrapped, the display is limited to +-180 \u00b0. If it exceeds 180 \u00b0 or -180 \u00b0 it is continued on the other side of the vertical scale.<\/p>\n

Used Biquads<\/em><\/span> informs you about the available Biquads. The first number is the number of Biquads that have not been bypassed. The second number is the number of available Biquads.<\/p>\n

Sample rate<\/em><\/span> shows the sample rate at which the filters are operated.<\/p>\n

The sample rate is not connected yet to the virtual amplifier, so this value will not change when you update the signal flow with the Signal Flow Designer.<\/p>\n

High order filters<\/p>\n

The biquad object does not support natively high order filters. To allow users work with high order filters, biquad panel can merge two low order filters into one high order filter automatically. Table below describes the rules of combining the filters.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n
First biquad type<\/span><\/td>\nSecond biquad type<\/span><\/td>\nComparision<\/span><\/td>\nResult<\/span><\/td>\n<\/tr>\n
HighPass2<\/td>\nHighPass1<\/td>\nB1Freq<\/sub> = B2Freq<\/sub> and B1Q<\/sub> = 1<\/td>\nHighButterworth3<\/td>\n<\/tr>\n
HighPass2<\/td>\nHighPass1<\/td>\n1.03*B1Freq<\/sub> = 0.93*B2Freq<\/sub> and B1Q<\/sub> = 0.69<\/td>\nHighBessel3<\/td>\n<\/tr>\n
HighPass2<\/td>\nHighPass2<\/td>\nB1Freq<\/sub> = B2Freq<\/sub> and B1Q<\/sub> = 1.31 and B2Q<\/sub> = 0.54<\/td>\nHighButterworth4<\/td>\n<\/tr>\n
HighPass2<\/td>\nHighPass2<\/td>\nB1Freq<\/sub> = B2Freq<\/sub> and B1Q<\/sub> = 0.71 and B2Q<\/sub> = 0.71<\/td>\nHighLinkwitzRiley4<\/td>\n<\/tr>\n
HighPass2<\/td>\nHighPass2<\/td>\n1.04*B1Freq<\/sub> = 0.93*B2Freq<\/sub> and B1Q<\/sub> = 0.81 and B2Q<\/sub> = 0.52<\/td>\nHighBessel4<\/td>\n<\/tr>\n
LowPass2<\/td>\nLowPass1<\/td>\nB1Freq<\/sub> = B2Freq<\/sub> and B1Q<\/sub> = 1<\/td>\nLowButterworth3<\/td>\n<\/tr>\n
LowPass2<\/td>\nLowPass1<\/td>\nB1Freq<\/sub>\/1.03 = B2Freq<\/sub>\/0.93 and B1Q<\/sub> = 0.69<\/td>\nLowBessel3<\/td>\n<\/tr>\n
LowPass2<\/td>\nLowPass2<\/td>\nB1Freq<\/sub> = B2Freq<\/sub> and B1Q<\/sub> = 1.31 and B2Q<\/sub> = 0.54<\/td>\nLowButterworth4<\/td>\n<\/tr>\n
LowPass2<\/td>\nLowPass2<\/td>\nB1Freq<\/sub> = B2Freq<\/sub> and B1Q<\/sub> = 0.71 and B2Q<\/sub> = 0.71<\/td>\nLowLinkwitzRiley4<\/td>\n<\/tr>\n
LowPass2<\/td>\nLowPass2<\/td>\nB1Freq<\/sub>\/1.04 = B2Freq<\/sub>\/0.93 and B1Q<\/sub> = 0.81 and B2Q<\/sub> = 0.52<\/td>\nLowBessel4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

    \n
  • B1Freq<\/sub> \u2013 first biquad frequency<\/li>\n
  • B2Freq<\/sub> \u2013 second biquad frequency<\/li>\n
  • B1Q<\/sub> \u2013 first biquad quality<\/li>\n
  • B2Q<\/sub> \u2013 second biquad quality<\/li>\n<\/ul>\n

     <\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

    The EqPanel can be used to apply Biquad filters to the signal.\u00a0 This panel is launched for Normal biquad object and Parameter biquad audio object with different modes.\u00a0 In the case of Parameter one modes,\u00a0 there will be no channel selections as the same biquad parameters is applied to all the other channels inside the […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ocean_post_layout":"","ocean_both_sidebars_style":"","ocean_both_sidebars_content_width":0,"ocean_both_sidebars_sidebars_width":0,"ocean_sidebar":"0","ocean_second_sidebar":"0","ocean_disable_margins":"enable","ocean_add_body_class":"","ocean_shortcode_before_top_bar":"","ocean_shortcode_after_top_bar":"","ocean_shortcode_before_header":"","ocean_shortcode_after_header":"","ocean_has_shortcode":"","ocean_shortcode_after_title":"","ocean_shortcode_before_footer_widgets":"","ocean_shortcode_after_footer_widgets":"","ocean_shortcode_before_footer_bottom":"","ocean_shortcode_after_footer_bottom":"","ocean_display_top_bar":"default","ocean_display_header":"default","ocean_header_style":"","ocean_center_header_left_menu":"0","ocean_custom_header_template":"0","ocean_custom_logo":0,"ocean_custom_retina_logo":0,"ocean_custom_logo_max_width":0,"ocean_custom_logo_tablet_max_width":0,"ocean_custom_logo_mobile_max_width":0,"ocean_custom_logo_max_height":0,"ocean_custom_logo_tablet_max_height":0,"ocean_custom_logo_mobile_max_height":0,"ocean_header_custom_menu":"0","ocean_menu_typo_font_family":"0","ocean_menu_typo_font_subset":"","ocean_menu_typo_font_size":0,"ocean_menu_typo_font_size_tablet":0,"ocean_menu_typo_font_size_mobile":0,"ocean_menu_typo_font_size_unit":"px","ocean_menu_typo_font_weight":"","ocean_menu_typo_font_weight_tablet":"","ocean_menu_typo_font_weight_mobile":"","ocean_menu_typo_transform":"","ocean_menu_typo_transform_tablet":"","ocean_menu_typo_transform_mobile":"","ocean_menu_typo_line_height":0,"ocean_menu_typo_line_height_tablet":0,"ocean_menu_typo_line_height_mobile":0,"ocean_menu_typo_line_height_unit":"","ocean_menu_typo_spacing":0,"ocean_menu_typo_spacing_tablet":0,"ocean_menu_typo_spacing_mobile":0,"ocean_menu_typo_spacing_unit":"","ocean_menu_link_color":"","ocean_menu_link_color_hover":"","ocean_menu_link_color_active":"","ocean_menu_link_background":"","ocean_menu_link_hover_background":"","ocean_menu_link_active_background":"","ocean_menu_social_links_bg":"","ocean_menu_social_hover_links_bg":"","ocean_menu_social_links_color":"","ocean_menu_social_hover_links_color":"","ocean_disable_title":"default","ocean_disable_heading":"default","ocean_post_title":"","ocean_post_subheading":"","ocean_post_title_style":"","ocean_post_title_background_color":"","ocean_post_title_background":0,"ocean_post_title_bg_image_position":"","ocean_post_title_bg_image_attachment":"","ocean_post_title_bg_image_repeat":"","ocean_post_title_bg_image_size":"","ocean_post_title_height":0,"ocean_post_title_bg_overlay":0.5,"ocean_post_title_bg_overlay_color":"","ocean_disable_breadcrumbs":"default","ocean_breadcrumbs_color":"","ocean_breadcrumbs_separator_color":"","ocean_breadcrumbs_links_color":"","ocean_breadcrumbs_links_hover_color":"","ocean_display_footer_widgets":"default","ocean_display_footer_bottom":"default","ocean_custom_footer_template":"0","footnotes":"","ocean_post_oembed":"","ocean_post_self_hosted_media":"","ocean_post_video_embed":"","ocean_link_format":"","ocean_link_format_target":"self","ocean_quote_format":"","ocean_quote_format_link":"post","ocean_gallery_link_images":"off","ocean_gallery_id":[]},"categories":[81,3,7],"tags":[],"coauthors":[165],"_links":{"self":[{"href":"https:\/\/audioworx.transfunnel.co\/old\/index.php?rest_route=\/wp\/v2\/posts\/3457"}],"collection":[{"href":"https:\/\/audioworx.transfunnel.co\/old\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/audioworx.transfunnel.co\/old\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/audioworx.transfunnel.co\/old\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/audioworx.transfunnel.co\/old\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3457"}],"version-history":[{"count":5,"href":"https:\/\/audioworx.transfunnel.co\/old\/index.php?rest_route=\/wp\/v2\/posts\/3457\/revisions"}],"predecessor-version":[{"id":9496,"href":"https:\/\/audioworx.transfunnel.co\/old\/index.php?rest_route=\/wp\/v2\/posts\/3457\/revisions\/9496"}],"wp:attachment":[{"href":"https:\/\/audioworx.transfunnel.co\/old\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3457"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/audioworx.transfunnel.co\/old\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3457"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/audioworx.transfunnel.co\/old\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3457"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/audioworx.transfunnel.co\/old\/index.php?rest_route=%2Fwp%2Fv2%2Fcoauthors&post=3457"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}