{"id":11678,"date":"2023-02-18T10:56:35","date_gmt":"2023-02-18T09:56:35","guid":{"rendered":"https:\/\/gaudiosolutions.com\/?p=11678"},"modified":"2023-06-27T18:26:03","modified_gmt":"2023-06-27T16:26:03","slug":"3-optimizacion-de-sistemas-la-transformada-de-fourier","status":"publish","type":"post","link":"https:\/\/www.gaudiosolutions.com\/pt-br\/3-optimizacion-de-sistemas-la-transformada-de-fourier\/","title":{"rendered":"3- Optimizaci\u00f3n de Sistemas. La Transformada de Fourier"},"content":{"rendered":"<p class=\"p1\"><span class=\"s1\" style=\"color: #000000;\">Vimos en el primer art\u00edculo (fundamentos) como a trav\u00e9s de la FFT pod\u00edamos visualizar el espectro de una se\u00f1al expresada en el dominio del tiempo. Podr\u00edamos decir que la FFT descompone una se\u00f1al en su contenido frecuencial (realmente obtiene las exponenciales complejas que est\u00e1n presentes en la se\u00f1al)<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"color: #000000;\">Si bien en un primer momento el uso de analizadores RTA (Real Time Analyzer) basados en la obtenci\u00f3n del espectro de la se\u00f1al fue una ayuda para empezar a entender el comportamiento de los sistemas de sonido y a visualizar la interferencia constructiva y destructiva, r\u00e1pidamente se encontraron sus limitaciones para el uso en la optimizaci\u00f3n de sistemas de sonido.<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"color: #000000;\">No obstante, todos los analizadores actuales destinados a la optimizaci\u00f3n de sistemas est\u00e1n basados de alg\u00fan modo en la transformada r\u00e1pida de Fourier<\/span><\/p>\n<h5 class=\"p1\"><span class=\"s1\" style=\"color: #000000;\"><b>La respuesta espectral<\/b><\/span><\/h5>\n<p class=\"p1\"><span class=\"s1\" style=\"color: #000000;\">La respuesta espectral de una se\u00f1al es el funcionamiento m\u00e1s b\u00e1sico de un analizador y muestra su contenido en frecuencia.<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"color: #000000;\">Como veremos m\u00e1s adelante, esta t\u00e9cnica nos permite visualizar los problemas pero no nos da informaci\u00f3n de porque estos se producen.<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"color: #000000;\">El siguiente gr\u00e1fico nos muestra el diagrama de bloques del proceso para obtener la respuesta espectral<\/span><\/p>\n<p>&nbsp;<\/p>\n<p class=\"p1\"><a href=\"https:\/\/gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/1.png\"><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter size-full wp-image-11681\" src=\"https:\/\/gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/1.png\" alt=\"\" width=\"795\" height=\"126\" srcset=\"https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/1.png 795w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/1-300x48.png 300w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/1-768x122.png 768w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/1-700x111.png 700w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/1-600x95.png 600w\" sizes=\"(max-width: 795px) 100vw, 795px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"color: #000000;\">La integral de an\u00e1lisis X(\u03c9) extrae la informaci\u00f3n espectral de una se\u00f1al temporal<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/2.png\"><img decoding=\"async\" class=\"aligncenter size-full wp-image-11684\" src=\"https:\/\/gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/2.png\" alt=\"\" width=\"795\" height=\"113\" srcset=\"https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/2.png 795w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/2-300x43.png 300w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/2-768x109.png 768w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/2-700x99.png 700w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/2-600x85.png 600w\" sizes=\"(max-width: 795px) 100vw, 795px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"color: #000000;\">La integral de s\u00edntesis x[ t ] obtiene la se\u00f1al temporal a partir de la informaci\u00f3n espectral<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/3.png\"><img decoding=\"async\" class=\"aligncenter size-full wp-image-11687\" src=\"https:\/\/gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/3.png\" alt=\"\" width=\"794\" height=\"108\" srcset=\"https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/3.png 794w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/3-300x41.png 300w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/3-768x104.png 768w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/3-700x95.png 700w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/3-600x82.png 600w\" sizes=\"(max-width: 794px) 100vw, 794px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"color: #000000;\">Realmente nuestro analizador usa la transformada Discreta de Fourier ya que manejamos se\u00f1ales discretas<\/span><span style=\"color: #000000;\"><a href=\"https:\/\/gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/4.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-11690\" src=\"https:\/\/gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/4.png\" alt=\"\" width=\"295\" height=\"115\" \/><\/a><\/span><\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"color: #000000;\">Aunque existen t\u00e9cnicas mejores para la obtenci\u00f3n de la respuesta al impulso, la IFFT es tambi\u00e9n usada en los analizadores cl\u00e1sicos para obtener el impulso a partir de una funci\u00f3n de trasferencia<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/5.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-11693\" src=\"https:\/\/gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/5.png\" alt=\"\" width=\"794\" height=\"171\" srcset=\"https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/5.png 794w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/5-300x65.png 300w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/5-768x165.png 768w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/5-700x151.png 700w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/5-600x129.png 600w\" sizes=\"(max-width: 794px) 100vw, 794px\" \/><\/a><\/p>\n<h5 class=\"p1\"><span class=\"s1\" style=\"color: #000000;\"><b>El tama\u00f1o de la FFT<\/b><\/span><\/h5>\n<p class=\"p1\"><span class=\"s1\" style=\"color: #000000;\">Si nos fijamos en los analizadores actuales nos daremos cuenta de que todos los tama\u00f1os de FFT que podemos elegir son potencias de 2. Eso es debido a que usan el algoritmo de Cooley-Tukey para la transformada r\u00e1pida.<\/span><\/p>\n<p class=\"p1\"><span style=\"color: #000000;\"><span class=\"s1\">Este algoritmo matem\u00e1tico nos permite, siempre y cuando el tama\u00f1o de la longitud de la se\u00f1al (N) sea potencia 2 reducir los c\u00e1lculos necesarios para obtener la transformada de N\u00b2 a N log<\/span><span class=\"s2\">2 <\/span><span class=\"s1\">N.<\/span><\/span><\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"color: #000000;\">Calculemos para 32768 muestras (2^15):\u00a0 \u00a0 \u00a0 \u00a0<\/span><span style=\"color: #000000;\"><span class=\"s1\">32768^2 = 1073741824<span class=\"Apple-converted-space\">\u00a0 <\/span>vs<span class=\"Apple-converted-space\">\u00a0 <\/span>32768 log<\/span><span class=\"s2\">2 <\/span><span class=\"s1\">32768 = 491520<\/span><\/span><\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"color: #000000;\">Una diferencia de computaci\u00f3n considerable.<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"color: #000000;\">El tama\u00f1o de la FFT determina 2 par\u00e1metros importantes: la Frecuencia de Resoluci\u00f3n y la Constante de Tiempo (TC)\u00a0\u00a0<\/span><\/p>\n<p>&nbsp;<\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"color: #000000;\"><b>La Frecuencia de Resoluci\u00f3n<\/b> determina cu\u00e1l es la m\u00ednima frecuencia que puede ser vista por el analizador. Todas las frecuencias que el analizador detectar\u00e1 son m\u00faltiplos enteros de esta Frecuencia de Resoluci\u00f3n.<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"color: #000000;\">La Frecuencia de Resoluci\u00f3n depende de la frecuencia de muestreo y del tama\u00f1o de la FFT<\/span><\/p>\n<p class=\"p2\" style=\"text-align: center;\"><span class=\"s1\" style=\"color: #000000;\"><strong>FR<\/strong> = Frecuencia de muestreo \/ Tama\u00f1o de la FFT<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"color: #000000;\">Ejemplo: 128 FFT y 32768 FFT<\/span><\/p>\n<p class=\"p2\" style=\"text-align: center;\"><span class=\"s1\" style=\"color: #000000;\">FR = 48000 \/ 128 = 375 Hz\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0FR = 48000 \/ 32768 = 1,46 Hz<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"color: #000000;\">La frecuencia de resoluci\u00f3n no es m\u00e1s que la frecuencia cuyo periodo coincide con la Constante de Tiempo<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/6-1.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-11720\" src=\"https:\/\/gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/6-1.png\" alt=\"\" width=\"844\" height=\"319\" srcset=\"https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/6-1.png 844w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/6-1-300x113.png 300w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/6-1-768x290.png 768w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/6-1-700x265.png 700w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/6-1-600x227.png 600w\" sizes=\"(max-width: 844px) 100vw, 844px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"color: #000000;\">Aumentar la frecuencia de muestreo NO implica mejorar la resoluci\u00f3n en frecuencia<\/span><\/p>\n<p>&nbsp;<\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"color: #000000;\"><b>La Constante de Tiempo<\/b> es el tiempo necesario para capturar determinado n\u00famero de muestras.<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"color: #000000;\">Como veremos mas adelante este valor es determinante para poder obtener un impulso m\u00ednimamente decente usando el m\u00e9todo cl\u00e1sico (IFFT) para largas distancias, por ejemplo medir el sistema principal en una torre de delay.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/7-1.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-11723\" src=\"https:\/\/gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/7-1.png\" alt=\"\" width=\"842\" height=\"319\" srcset=\"https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/7-1.png 842w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/7-1-300x114.png 300w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/7-1-768x291.png 768w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/7-1-700x265.png 700w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/7-1-600x227.png 600w\" sizes=\"(max-width: 842px) 100vw, 842px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p class=\"p1\"><span style=\"color: #000000;\"><span class=\"s1\">S\u00ed visualizamos el espectro de una se\u00f1al aleatoria con los tama\u00f1os de FFT mencionados anteriormente (32768 FFT, 128 FFT) Observaremos que nos muestran un resultado distinto. 32768 FFT tiene un dato cada 1,46 Hz, mientras que 128 FFT obtiene un dato cada 375 Hz. Adem\u00e1s nos muestran una amplitud distinta (el software muestra la potencia de la se\u00f1al convertida a dB<\/span><span class=\"s2\">FS<\/span><\/span><\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"color: #000000;\">Entonces, \u00bfQu\u00e9 tama\u00f1o de FFT deber\u00edamos usar? Pues como casi siempre la respuesta es depende, depende de la frecuencia.<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"color: #000000;\">Un tama\u00f1o grande nos aportar\u00e1 buena resoluci\u00f3n para las frecuencias graves, pero tantos datos para las frecuencias agudas que dificultar\u00e1n su visualizaci\u00f3n, justo lo contrario que un tama\u00f1o peque\u00f1o.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/8.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-11702\" src=\"https:\/\/gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/8.png\" alt=\"\" width=\"797\" height=\"487\" srcset=\"https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/8.png 797w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/8-300x183.png 300w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/8-768x469.png 768w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/8-700x428.png 700w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/8-600x367.png 600w\" sizes=\"(max-width: 797px) 100vw, 797px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"color: #000000;\">Veamos un nuevo ejemplo pero desde el punto de vista de la Constante de Tiempo. Visualicemos el espectrograma de una respuesta al impulso tomada en una sala.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/9.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-11705\" src=\"https:\/\/gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/9.png\" alt=\"\" width=\"796\" height=\"213\" srcset=\"https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/9.png 796w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/9-300x80.png 300w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/9-768x206.png 768w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/9-700x187.png 700w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/9-600x161.png 600w\" sizes=\"(max-width: 796px) 100vw, 796px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/10.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-11708\" src=\"https:\/\/gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/10.png\" alt=\"\" width=\"796\" height=\"484\" srcset=\"https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/10.png 796w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/10-300x182.png 300w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/10-768x467.png 768w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/10-700x426.png 700w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/10-600x365.png 600w\" sizes=\"(max-width: 796px) 100vw, 796px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"color: #000000;\">Ambos gr\u00e1ficos nos muestran la misma respuesta al impulso pero con diferentes tama\u00f1os de FFT (realmente con diferente tama\u00f1o de ventana).<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"color: #000000;\">El gr\u00e1fico superior (128 FFT) es capaz de mostrarnos una muy buena resoluci\u00f3n temporal y, por lo tanto, mostrar claramente la reflexi\u00f3n que produce la pared trasera en una sala. Por contra, un tama\u00f1o grande de FFT nos muestra una buena resoluci\u00f3n en frecuencia a cambio de no poder visualizar la reflexi\u00f3n ya que su constante de tiempo es demasiado grande.<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"color: #000000;\">Al final, como siempre, un valor intermedio puede mostrarnos un equilibrio entre ambos dominios<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/11.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-11711\" src=\"https:\/\/gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/11.png\" alt=\"\" width=\"795\" height=\"487\" srcset=\"https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/11.png 795w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/11-300x184.png 300w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/11-768x470.png 768w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/11-700x429.png 700w, https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/11-600x368.png 600w\" sizes=\"(max-width: 795px) 100vw, 795px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Vimos en el primer art\u00edculo (fundamentos) como a trav\u00e9s de la FFT pod\u00edamos visualizar el espectro de una se\u00f1al expresada en el dominio del tiempo. Podr\u00edamos decir que la FFT descompone una se\u00f1al en su contenido frecuencial (realmente obtiene las exponenciales complejas que est\u00e1n presentes en la se\u00f1al) Si bien en un primer momento el [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":11711,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[40,161,53],"tags":[63,159,42],"class_list":["post-11678","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-analisis","category-articulos","category-rita","tag-analysis","tag-articulos","tag-rita"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>3- Optimizaci\u00f3n de Sistemas. La Transformada de Fourier - Global Audio Solutions<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.gaudiosolutions.com\/3-optimizacion-de-sistemas-la-transformada-de-fourier\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"3- Optimizaci\u00f3n de Sistemas. La Transformada de Fourier - Global Audio Solutions\" \/>\n<meta property=\"og:description\" content=\"Vimos en el primer art\u00edculo (fundamentos) como a trav\u00e9s de la FFT pod\u00edamos visualizar el espectro de una se\u00f1al expresada en el dominio del tiempo. Podr\u00edamos decir que la FFT descompone una se\u00f1al en su contenido frecuencial (realmente obtiene las exponenciales complejas que est\u00e1n presentes en la se\u00f1al) Si bien en un primer momento el [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.gaudiosolutions.com\/3-optimizacion-de-sistemas-la-transformada-de-fourier\/\" \/>\n<meta property=\"og:site_name\" content=\"Global Audio Solutions\" \/>\n<meta property=\"article:published_time\" content=\"2023-02-18T09:56:35+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-06-27T16:26:03+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.gaudiosolutions.com\/wp-content\/uploads\/2023\/02\/11.png\" \/>\n\t<meta property=\"og:image:width\" content=\"795\" \/>\n\t<meta property=\"og:image:height\" content=\"487\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Global Audio Solutions\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Global Audio Solutions\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. tempo de leitura\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.gaudiosolutions.com\/3-optimizacion-de-sistemas-la-transformada-de-fourier\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.gaudiosolutions.com\/3-optimizacion-de-sistemas-la-transformada-de-fourier\/\"},\"author\":{\"name\":\"Global Audio Solutions\",\"@id\":\"https:\/\/www.gaudiosolutions.com\/#\/schema\/person\/3c4165cb7f7ca991112ae57ba88c0e9e\"},\"headline\":\"3- Optimizaci\u00f3n de Sistemas. 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