{"id":12620,"date":"2024-05-28T07:19:33","date_gmt":"2024-05-28T07:19:33","guid":{"rendered":"https:\/\/dailyai.com\/?p=12620"},"modified":"2024-05-28T06:24:06","modified_gmt":"2024-05-28T06:24:06","slug":"ai-headphones-let-users-focus-on-a-single-voice-in-noisy-environments","status":"publish","type":"post","link":"https:\/\/dailyai.com\/pt\/2024\/05\/ai-headphones-let-users-focus-on-a-single-voice-in-noisy-environments\/","title":{"rendered":"Os auscultadores com IA permitem que os utilizadores se concentrem numa \u00fanica voz em ambientes ruidosos"},"content":{"rendered":"

Os investigadores da Universidade de Washington desenvolveram um sistema de IA que permite que os auscultadores com cancelamento de ru\u00eddo isolem e amplifiquem uma \u00fanica voz num ambiente lotado e ruidoso.\u00a0<\/b><\/p>\n

A tecnologia, denominada Target Speech Hearing (TSH), permite aos utilizadores selecionar uma pessoa espec\u00edfica para ouvir, bastando olhar para ela durante alguns segundos.<\/span><\/p>\n

O sistema TSH aborda um desafio comum enfrentado pelos auscultadores com cancelamento de ru\u00eddo: embora reduzam eficazmente o ru\u00eddo ambiente, fazem-no indiscriminadamente, dificultando a audi\u00e7\u00e3o de sons espec\u00edficos em que os utilizadores se queiram concentrar.\u00a0<\/span><\/p>\n

Como Shyam Gollakota, professor da Universidade de Washington e investigador principal do projeto, <\/span>explica<\/span><\/a>A audi\u00e7\u00e3o de pessoas espec\u00edficas \u00e9 um aspeto fundamental da forma como comunicamos e interagimos com outros seres humanos. Mas pode ser realmente dif\u00edcil, mesmo que n\u00e3o tenha problemas de perda de audi\u00e7\u00e3o, concentrar-se em pessoas espec\u00edficas quando se trata de situa\u00e7\u00f5es ruidosas.\"<\/span><\/p>\n

Como funciona<\/h2>\n

O <\/span>estudo<\/span><\/a> combina de forma inteligente os auscultadores com cancelamento de ru\u00eddo e a IA para se concentrar em vozes individuais em ambientes ruidosos e com muita gente.\u00a0<\/span><\/p>\n

    \n
  1. Durante a fase de \"inscri\u00e7\u00e3o\", o utilizador olha para o orador alvo durante alguns segundos, permitindo que os microfones binaurais dos auscultadores captem uma amostra de \u00e1udio com as caracter\u00edsticas vocais do orador, mesmo na presen\u00e7a de outros oradores e ru\u00eddos.<\/span><\/li>\n
  2. O sinal binaural captado \u00e9 processado por uma rede neural que aprende as caracter\u00edsticas do orador alvo, separando a sua voz dos oradores interferentes atrav\u00e9s de informa\u00e7\u00f5es direccionais.<\/span><\/li>\n
  3. As caracter\u00edsticas aprendidas do orador alvo, representadas como um vetor de incorpora\u00e7\u00e3o, s\u00e3o depois introduzidas numa rede neuronal diferente concebida para extrair o discurso alvo de uma cacofonia de oradores.<\/span><\/li>\n
  4. Depois de as caracter\u00edsticas do altifalante alvo terem sido aprendidas durante a fase de registo, o utilizador pode olhar em qualquer dire\u00e7\u00e3o, mover a cabe\u00e7a ou andar de um lado para o outro enquanto continua a ouvir o altifalante alvo.<\/span><\/li>\n
  5. O sistema TSH processa continuamente o \u00e1udio de entrada, utilizando a incorpora\u00e7\u00e3o do altifalante aprendida para isolar e amplificar a voz do altifalante alvo, suprimindo outras vozes e o ru\u00eddo de fundo.<\/span><\/li>\n<\/ol>\n

    O prot\u00f3tipo atual s\u00f3 pode registar eficazmente um orador espec\u00edfico cuja voz seja a mais alta numa determinada dire\u00e7\u00e3o, mas a equipa est\u00e1 a trabalhar em<\/span>\u00a0melhorando o sistema para lidar com cen\u00e1rios mais complexos com fontes de \u00e1udio diversas e variadas.<\/span><\/p>\n

    Samuele Cornell, investigador do Instituto de Tecnologias da Linguagem da Universidade Carnegie Mellon, elogia a investiga\u00e7\u00e3o pelas suas claras aplica\u00e7\u00f5es no mundo real, afirmando: \"Penso que \u00e9 um passo na dire\u00e7\u00e3o certa. \u00c9 uma lufada de ar fresco\".<\/span><\/p>\n

    Embora o sistema TSH seja atualmente uma prova de conceito, os investigadores est\u00e3o em negocia\u00e7\u00f5es para incorporar a tecnologia em marcas populares de auriculares com cancelamento de ru\u00eddo e torn\u00e1-la dispon\u00edvel para aparelhos auditivos.\u00a0<\/span><\/p>\n

    Juntamente com uma melhor an\u00e1lise de \u00e1udio e de voz, que deu um salto em frente com GPT-4o<\/a>Com a ajuda de um sistema de gest\u00e3o de res\u00edduos, as pessoas com defici\u00eancias visuais e auditivas poder\u00e3o ligar-se melhor ao mundo sensorial que as rodeia.<\/span><\/p>","protected":false},"excerpt":{"rendered":"

    Os investigadores da Universidade de Washington desenvolveram um sistema de IA que permite que os auscultadores com cancelamento de ru\u00eddo isolem e amplifiquem uma \u00fanica voz num ambiente lotado e ruidoso. A tecnologia, denominada Target Speech Hearing (TSH), permite aos utilizadores selecionar uma pessoa espec\u00edfica para ouvir, bastando olhar para ela durante alguns segundos. O sistema TSH aborda um desafio comum enfrentado pelos auscultadores com cancelamento de ru\u00eddo: embora reduzam eficazmente o ru\u00eddo ambiente, fazem-no indiscriminadamente, tornando dif\u00edcil para os utilizadores ouvir sons espec\u00edficos em que se queiram concentrar. Como Shyam Gollakota, professor da Universidade de Washington e<\/p>","protected":false},"author":2,"featured_media":12621,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[88],"tags":[596],"class_list":["post-12620","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ethics","tag-text-to-audio"],"yoast_head":"\nAI headphones let users focus on a single voice in noisy environments | DailyAI<\/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:\/\/dailyai.com\/pt\/2024\/05\/ai-headphones-let-users-focus-on-a-single-voice-in-noisy-environments\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"AI headphones let users focus on a single voice in noisy environments | DailyAI\" \/>\n<meta property=\"og:description\" content=\"Researchers at the University of Washington have developed an AI system that allows noise-canceling headphones to isolate and amplify a single voice in a crowded, noisy environment.\u00a0 The technology, called Target Speech Hearing (TSH), enables users to select a specific person to listen to by simply looking at them for a few seconds. The TSH system addresses a common challenge faced by noise-canceling headphones: while they effectively reduce ambient noise, they do so indiscriminately, making it difficult for users to hear specific sounds they might want to focus on.\u00a0 As Shyam Gollakota, a professor at the University of Washington and\" \/>\n<meta property=\"og:url\" content=\"https:\/\/dailyai.com\/pt\/2024\/05\/ai-headphones-let-users-focus-on-a-single-voice-in-noisy-environments\/\" \/>\n<meta property=\"og:site_name\" content=\"DailyAI\" \/>\n<meta property=\"article:published_time\" content=\"2024-05-28T07:19:33+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/dailyai.com\/wp-content\/uploads\/2024\/05\/DALL\u00b7E-2024-05-28-07.17.49-A-high-quality-landscape-image-depicting-a-person-using-AI-powered-headphones-in-a-noisy-environment-such-as-a-busy-cafe-or-street.-The-headphones-ar.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"1792\" \/>\n\t<meta property=\"og:image:height\" 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