{"id":24985,"date":"2023-10-26T06:34:00","date_gmt":"2023-10-26T04:34:00","guid":{"rendered":"https:\/\/demdlx704as001.ad.harman.com\/?post_type=documentor-sections&p=24985"},"modified":"2023-11-27T06:18:36","modified_gmt":"2023-11-27T05:18:36","slug":"noise-generator-2","status":"publish","type":"post","link":"https:\/\/audioworx.transfunnel.co\/old\/?p=24985","title":{"rendered":"Noise Generator"},"content":{"rendered":"

The Noise Generator audio object generates noise audio samples scaled by a specified gain value.<\/span><\/p>\n

Use Case:<\/strong> This object can be deployed to generate noise of different types with different gain values.<\/em><\/span><\/p>\n

Noise Generator Properties<\/strong><\/span><\/p>\n

Below table describes about the Noise Generator audio object properties and functionality.<\/span><\/p>\n

<\/span><\/p>\n\n\n\n\n\n\n
Properties<\/strong><\/span><\/td>\nDescription<\/strong><\/span><\/td>\n<\/tr>\n
# of Audio Out<\/strong><\/span><\/td>\nEnter the number of output channels.<\/span><\/p>\n
    \n
  • Range: 1 to 255<\/span><\/li>\n
  • Data type: Unsigned Short<\/span><\/li>\n
  • The default value is set to 1.<\/span><\/li>\n<\/ul>\n<\/td>\n<\/tr>\n
Display Name<\/strong><\/span><\/td>\nDisplay the name of the Noise Generator audio object in signal flow design. It can be changed based on the intended usage of the object.<\/span><\/td>\n<\/tr>\n
Object Mode<\/strong><\/span><\/td>\nNoise generator operates in one of the following two modes.<\/span><\/p>\n
    \n
  • WhiteNoise<\/span><\/li>\n
  • PinkNoise<\/span><\/li>\n
  • Pro-Prbs<\/span><\/li>\n
  • Pro-Lcg<\/span><\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Mode<\/strong><\/span><\/p>\n

    The Noise generator object supports four different modes of operation.<\/span><\/p>\n\n\n\n\n\n\n\n
    Mode<\/strong><\/span><\/td>\nDescription<\/strong><\/span><\/td>\n<\/tr>\n
    White Noise <\/strong>(Mode 0)<\/strong><\/span><\/td>\nThe White noise is generated based on the initial seed value. The initial seed value is multiplied by a scale factor to get white noise. <\/span>This is the default mode.<\/span><\/td>\n<\/tr>\n
    Pink Noise <\/strong>(Mode 1)<\/strong><\/span><\/td>\nTo generate pink noise, white noise is generated first and pink filter is applied over that.<\/span><\/td>\n<\/tr>\n
    Pro-Prbs <\/strong>(Mode 2)<\/strong><\/span><\/td>\nThe Pro-Prbs (Pseudo Random Bit Sequence) mode generates white and pink noise that can be chosen through tuning parameter.<\/span><\/p>\n
      \n
    • White Noise Generation: In this mode pseudo random binary sequence generator is used to generate the white noise signal. It is a deterministic algorithm.<\/span><\/li>\n
    • Pink Noise Generation: In this mode Paul kellet\u2019s algorithm is used to generate Pink noise signal.<\/span><\/li>\n<\/ul>\n<\/td>\n<\/tr>\n
    Pro-Lcg <\/strong>(Mode 3)<\/strong><\/span><\/td>\nThe Pro-Lcg (Linear Congruential Generator) mode generates white and pink noise that can be chosen through tuning parameter.<\/span><\/p>\n
      \n
    • White Noise Generation: In this mode \u201cMinimal\u201d random number generator of Park and Miller with Bays-Durham shuffle method is used to generate white noise.<\/span><\/li>\n
    • Pink Noise Generation: In this mode the White Noise that is generated through the linear congruential method is passed through Pink filter 0 and Pink filter 1 to generate the pink noise. The pink noise is passed through the HPF and LPF filters to limit the frequency spectrum to 20 to 20 kHz.<\/span><\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      In all the modes, the gain (Noise Level) is in dB scale ranging from -128 dB to 0 dB. The same gain value applies to all channels of the Noise Generator object. It also exposes that same variable for control purposes.<\/span><\/p>\n

      Additional Parameters<\/strong><\/span><\/p>\n

      There are no additional parameters available for Noise Generator audio object .<\/span><\/p>\n

      Tuning Parameters<\/strong><\/span><\/p>\n

      Below table describes the tuning parameters of Noise Generator audio object.<\/span><\/p>\n

      For White Noise and Pink Noise mode<\/strong><\/span><\/p>\n\n\n\n\n
      Parameter<\/strong><\/span><\/td>\nDescription<\/strong><\/span><\/td>\nUnit<\/strong><\/span><\/td>\nData Type<\/strong><\/span><\/td>\nDefault<\/strong><\/span><\/td>\nRange<\/strong><\/span><\/td>\n<\/tr>\n
      Noise Level<\/strong><\/span><\/td>\nGenerates noise in output channel with gain as tuneable.<\/span><\/td>\ndb<\/span><\/td>\nFloat<\/span><\/td>\n-60<\/span><\/td>\n-128 to 0<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      For Pro-Prbs and Pro-Lcg modes<\/strong><\/span><\/p>\n\n\n\n\n\n
      Parameter<\/strong><\/span><\/td>\nDescription<\/strong><\/span><\/td>\nUnit<\/strong><\/span><\/td>\nData Type<\/strong><\/span><\/td>\nDefault<\/strong><\/span><\/td>\nRange<\/strong><\/span><\/td>\n<\/tr>\n
      Noise Level<\/strong><\/span><\/td>\nGenerates noise in output channel with gain as tuneable.<\/span><\/td>\ndb<\/span><\/td>\nFloat<\/span><\/td>\n-100<\/span><\/td>\n-128 to 0<\/span><\/td>\n<\/tr>\n
      Noise Type<\/strong><\/span><\/td>\nGenerates white or pink noise in output channel with noise type as a tuneable parameter.
      \n<\/span>This is applicable only for Mode 2 (Pro-Prbs) and Mode 3 (Pro-Lcg).<\/span>The noise type parameter allows the user to choose white noise or pink noise dynamically.<\/span><\/td>\n      		None<\/span><\/td>\nFloat<\/span><\/td>\n1<\/span><\/td>\n\n

      0 (White)<\/span><\/p>\n

      or<\/span><\/p>\n

      1 (Pink)<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      Control Parameters<\/strong><\/span><\/p>\n

      The Noise Generator object has one control input \u2013 Gain (Noise Level) ranging from -128 dB to 0 dB and this value is applicable to all the channels. This control input is available in all the four modes.<\/span><\/p>\n

      This\u00a0 audio object does not have any control output.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

      The Noise Generator audio object generates noise audio samples scaled by a specified gain value. Use Case: This object can be deployed to generate noise of different types with different gain values. Noise Generator Properties Below table describes about the Noise Generator audio object properties and functionality. Properties Description # of Audio Out Enter the […]<\/p>\n","protected":false},"author":107,"featured_media":0,"comment_status":"closed","ping_status":"closed","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":[315],"tags":[],"coauthors":[292],"_links":{"self":[{"href":"https:\/\/audioworx.transfunnel.co\/old\/index.php?rest_route=\/wp\/v2\/posts\/24985"}],"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\/107"}],"replies":[{"embeddable":true,"href":"https:\/\/audioworx.transfunnel.co\/old\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=24985"}],"version-history":[{"count":17,"href":"https:\/\/audioworx.transfunnel.co\/old\/index.php?rest_route=\/wp\/v2\/posts\/24985\/revisions"}],"predecessor-version":[{"id":25768,"href":"https:\/\/audioworx.transfunnel.co\/old\/index.php?rest_route=\/wp\/v2\/posts\/24985\/revisions\/25768"}],"wp:attachment":[{"href":"https:\/\/audioworx.transfunnel.co\/old\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=24985"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/audioworx.transfunnel.co\/old\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=24985"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/audioworx.transfunnel.co\/old\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=24985"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/audioworx.transfunnel.co\/old\/index.php?rest_route=%2Fwp%2Fv2%2Fcoauthors&post=24985"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}