{"id":21166,"date":"2025-10-14T10:11:27","date_gmt":"2025-10-14T03:11:27","guid":{"rendered":"https:\/\/bell24vietnam.vn\/?p=21166"},"modified":"2025-10-15T11:58:28","modified_gmt":"2025-10-15T04:58:28","slug":"voice-data-collection-for-ai-training","status":"publish","type":"post","link":"https:\/\/bell24vietnam.vn\/en\/case-study\/voice-data-collection-for-ai-training\/","title":{"rendered":"Voice Data for AI Training \u2013 Project of Recording 3,000 Voice Samples Nationwide"},"content":{"rendered":"<h2>CHALLENGES AND PROBLEM<\/h2>\n\n<table id=\"tablepress-23\" class=\"tablepress tablepress-id-23\">\n<thead>\n<tr class=\"row-1\">\n\t<th class=\"column-1\">Challenge<\/th><th class=\"column-2\">Specific requirements<\/th>\n<\/tr>\n<\/thead>\n<tbody class=\"row-striping row-hover\">\n<tr class=\"row-2\">\n\t<td class=\"column-1\">Large data volume, urgent timeline<\/td><td class=\"column-2\">Complete 3,000 voice samples in 80 days. <\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\">Ensure recording quality according to technical standards<\/td><td class=\"column-2\">Correct recording script; noise, reverberation, RMS reaching permissible thresholds.<\/td>\n<\/tr>\n<tr class=\"row-4\">\n\t<td class=\"column-1\">Diverse voice distribution<\/td><td class=\"column-2\">Region, gender, age must match committed ratios.<\/td>\n<\/tr>\n<tr class=\"row-5\">\n\t<td class=\"column-1\">Support both online and offline forms<\/td><td class=\"column-2\">Distribute work flexibly according to actual conditions.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<!-- #tablepress-23 from cache -->\n<h2>SOLUTION<\/h2>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/bell24vietnam.vn\/wp-content\/uploads\/2025\/11\/Project-of-Recording-3000-Voice-Samples-Nationwide.webp\" alt=\"Project of Recording 3,000 Voice Samples Nationwide\" width=\"800\" height=\"365\" \/><\/p>\n<h3>1. Preparation<\/h3>\n<ul>\n<li>Recruitment of recording personnel from regions according to requirements.<\/li>\n<li>Skill training, instruction on using online\/offline recording software.<\/li>\n<li>Studio testing regarding soundproofing standards, equipment, and noise levels.<\/li>\n<\/ul>\n<h3>2. Recording Activities<\/h3>\n<ul>\n<li>Offline recording (14 days): Executed in 3 regions, each sample taking 24\u201332 minutes.<\/li>\n<li>Online recording (60 days): Using the partner's compatible recording software.<\/li>\n<li>Progress management, quality control of each sample throughout the process.<\/li>\n<\/ul>\n<h3>3. Inspection &amp; Calibration<\/h3>\n<ul>\n<li>Each sample not meeting requirements will be requested to be re-recorded.<\/li>\n<li>Client's audio engineers coordinate to inspect and evaluate quality.<\/li>\n<li>Ensure all data meets standards before handover.<\/li>\n<\/ul>\n<blockquote><p><em><strong>Only approved samples will be counted. Any rejected samples will be re-recorded by Bellsystem24 Vietnam until they meet the requirements.<\/strong><\/em><\/p><\/blockquote>\n<h3>Some preparations for the recording studio<\/h3>\n<p>General requirements for the recording studio: <span style=\"font-size: 16px;\">The studio must be <\/span><strong style=\"font-size: 16px;\" data-start=\"47\" data-end=\"62\">well soundproofed<\/strong><span style=\"font-size: 16px;\">, <\/span><strong style=\"font-size: 16px;\" data-start=\"64\" data-end=\"125\">with noise and reverberation kept within the allowed technical limits<\/strong><span style=\"font-size: 16px;\">, ensuring professional-grade audio quality<\/span>\u00a0The studio must also be prepared and <strong>ready for use at least 3 days prior to the recording date.\u201d<\/strong><\/p>\n<p>Recording studio layout<\/p>\n<p><img decoding=\"async\" class=\"wp-image-21168 size-full aligncenter\" style=\"font-style: inherit; font-weight: 600; text-align: center;\" src=\"https:\/\/bell24vietnam.vn\/wp-content\/uploads\/2025\/11\/Recording-studio-layout.webp\" alt=\"Recording studio layout\" width=\"800\" height=\"548\" srcset=\"https:\/\/bell24vietnam.vn\/wp-content\/uploads\/2025\/11\/Recording-studio-layout.webp 800w, https:\/\/bell24vietnam.vn\/wp-content\/uploads\/2025\/11\/Recording-studio-layout-300x206.webp 300w, https:\/\/bell24vietnam.vn\/wp-content\/uploads\/2025\/11\/Recording-studio-layout-768x526.webp 768w, https:\/\/bell24vietnam.vn\/wp-content\/uploads\/2025\/11\/Recording-studio-layout-18x12.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>Equipment for each recording room<\/p>\n<p><img decoding=\"async\" class=\"wp-image-21170 aligncenter\" style=\"font-style: inherit; font-weight: 600; text-align: center;\" src=\"https:\/\/bell24vietnam.vn\/wp-content\/uploads\/2025\/11\/Equipment-for-each-recording-room.webp\" alt=\"Equipment for each recording room\" width=\"700\" height=\"480\" srcset=\"https:\/\/bell24vietnam.vn\/wp-content\/uploads\/2025\/11\/Equipment-for-each-recording-room.webp 800w, https:\/\/bell24vietnam.vn\/wp-content\/uploads\/2025\/11\/Equipment-for-each-recording-room-300x206.webp 300w, https:\/\/bell24vietnam.vn\/wp-content\/uploads\/2025\/11\/Equipment-for-each-recording-room-768x526.webp 768w, https:\/\/bell24vietnam.vn\/wp-content\/uploads\/2025\/11\/Equipment-for-each-recording-room-18x12.webp 18w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/p>\n<h2>RESULT<\/h2>\n<div>\n<ul>\n<li>100% of the project completed on schedule, no delays.<\/li>\n<li>3,000 voice samples collected fully and meeting technical standards.<\/li>\n<li>Data distributed diversely by region, gender, and age according to partner requirements.<\/li>\n<li>Each recorded sample meets standards, ready to serve as input for AI training.<\/li>\n<li>Ensured high data quality, supporting effective AI system development.<\/li>\n<\/ul>\n<p class=\"elementor-slide-heading\"><span style=\"color: #ff6600;\"><a style=\"color: #ff6600;\" href=\"https:\/\/bell24vietnam.vn\/en\/ai-training-services\/\" target=\"_blank\" rel=\"noopener\"><strong>Ai training data services  \u2192<\/strong><\/a><\/span><\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>TH\u00c1CH TH\u1ee8C V\u00c0 B\u00c0I TO\u00c1N T\u1eea KH\u00c1CH H\u00c0NG GI\u1ea2I PH\u00c1P TRI\u1ec2N KHAI 1 Chu\u1ea9n b\u1ecb &amp; \u0111\u00e0o t\u1ea1o Tuy\u1ec3n d\u1ee5ng [&hellip;]<\/p>","protected":false},"author":1,"featured_media":21173,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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