{"id":1132,"date":"2026-04-01T10:54:00","date_gmt":"2026-04-01T01:54:00","guid":{"rendered":"https:\/\/www.muratasoftware.com\/en_wacul_new\/fwp-new-wacul\/?post_type=case&#038;p=1132"},"modified":"2026-09-07T17:04:45","modified_gmt":"2026-09-07T08:04:45","slug":"mac007","status":"publish","type":"case","link":"https:\/\/www.muratasoftware.com\/en\/case\/mac007\/","title":{"rendered":"Interference Between Multi Sound Sources"},"content":{"rendered":"\n<figure class=\"wp-block-table blockPattern__table\"><table><thead><tr><th>General<\/th><th>When multiple sound sources are placed in a space, their sound waves overlap, creating variations in sound pressure level depending on location.<br>This example analyzes interference between two sound sources and examines changes in the sound pressure distribution caused by their arrangement.<\/th><\/tr><\/thead><tbody><tr><td>Analysis Model<\/td><td>In a two-dimensional model, two point sound sources with identical conditions are placed in the space.<br>The overlap of the sound waves radiated from the two sources is analyzed to evaluate the spatial distribution of sound pressure levels.<\/td><\/tr><tr><td>Result<\/td><td>The analysis results show how the sound waves radiated from the two sources overlap, producing regions of high and low sound pressure levels.<br>Because the intensity and distribution of interference vary with the distance between the sound sources and the frequency, this analysis can be applied to speaker placement and acoustic design involving multiple sound sources.<\/td><\/tr><tr><td>Keywords<\/td><td>Acoustic Interference, Multiple Sound Sources, Speaker Placement, Sound Pressure Distribution, Sound Field Analysis, Sound Quality Evaluation<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<div style=\"height:15px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"\u97f3\u6e90\u540c\u58eb\u306e\u5e72\u6e09\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/ctkH0bAByBY?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<div class=\"wp-block-columns blockPattern__column is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p><\/p>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6abb6999ce0eb&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6abb6999ce0eb\" class=\"wp-block-image size-full wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"506\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/www.muratasoftware.com\/en\/fwp\/wp-content\/uploads\/2026\/04\/Slide_002-2.png\" alt=\"\" class=\"wp-image-4110\" srcset=\"https:\/\/www.muratasoftware.com\/en\/fwp\/wp-content\/uploads\/2026\/04\/Slide_002-2.png 900w, https:\/\/www.muratasoftware.com\/en\/fwp\/wp-content\/uploads\/2026\/04\/Slide_002-2-300x169.png 300w, https:\/\/www.muratasoftware.com\/en\/fwp\/wp-content\/uploads\/2026\/04\/Slide_002-2-768x432.png 768w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" 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data-wp-key=\"6abb6999cedbf\" class=\"wp-block-image size-full wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"506\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/www.muratasoftware.com\/en\/fwp\/wp-content\/uploads\/2026\/04\/Slide_003-2.png\" alt=\"\" class=\"wp-image-4112\" srcset=\"https:\/\/www.muratasoftware.com\/en\/fwp\/wp-content\/uploads\/2026\/04\/Slide_003-2.png 900w, https:\/\/www.muratasoftware.com\/en\/fwp\/wp-content\/uploads\/2026\/04\/Slide_003-2-300x169.png 300w, https:\/\/www.muratasoftware.com\/en\/fwp\/wp-content\/uploads\/2026\/04\/Slide_003-2-768x432.png 768w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" 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wp-block-column-is-layout-flow\">\n<p><\/p>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6abb6999cf2ae&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6abb6999cf2ae\" class=\"wp-block-image size-full wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"506\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/www.muratasoftware.com\/en\/fwp\/wp-content\/uploads\/2026\/04\/Slide_004-2.png\" alt=\"\" class=\"wp-image-4120\" srcset=\"https:\/\/www.muratasoftware.com\/en\/fwp\/wp-content\/uploads\/2026\/04\/Slide_004-2.png 900w, https:\/\/www.muratasoftware.com\/en\/fwp\/wp-content\/uploads\/2026\/04\/Slide_004-2-300x169.png 300w, https:\/\/www.muratasoftware.com\/en\/fwp\/wp-content\/uploads\/2026\/04\/Slide_004-2-768x432.png 768w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"\u62e1\u5927\u3059\u308b\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p><\/p>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6abb6999cf70e&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6abb6999cf70e\" class=\"wp-block-image size-full wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"506\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/www.muratasoftware.com\/en\/fwp\/wp-content\/uploads\/2026\/04\/Slide_005-2.png\" alt=\"\" class=\"wp-image-4114\" srcset=\"https:\/\/www.muratasoftware.com\/en\/fwp\/wp-content\/uploads\/2026\/04\/Slide_005-2.png 900w, https:\/\/www.muratasoftware.com\/en\/fwp\/wp-content\/uploads\/2026\/04\/Slide_005-2-300x169.png 300w, 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is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p><\/p>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6abb6999cfbe4&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6abb6999cfbe4\" class=\"wp-block-image size-full wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"506\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/www.muratasoftware.com\/en\/fwp\/wp-content\/uploads\/2026\/04\/Slide_006-2.png\" alt=\"\" class=\"wp-image-4115\" srcset=\"https:\/\/www.muratasoftware.com\/en\/fwp\/wp-content\/uploads\/2026\/04\/Slide_006-2.png 900w, 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srcset=\"https:\/\/www.muratasoftware.com\/en\/fwp\/wp-content\/uploads\/2026\/04\/Slide_008-2.png 900w, https:\/\/www.muratasoftware.com\/en\/fwp\/wp-content\/uploads\/2026\/04\/Slide_008-2-300x169.png 300w, https:\/\/www.muratasoftware.com\/en\/fwp\/wp-content\/uploads\/2026\/04\/Slide_008-2-768x432.png 768w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"\u62e1\u5927\u3059\u308b\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 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