ICS33.160.99 CCSM74 世界超高清视频产业联盟标准 T/UWA009.3-4-2024 2024-06-14发布 2024-06-14实施 世界超高清视频产业联盟三维声技术规范第3-4部分：技术要求和 测试方法车载音频系统 3DAudioTechnologySpecificationPart3-4： TechnicalRequirementandTestMethod-AutomotiveAudioSystem （V1.0） 全国团体标准信息平台 全国团体标准信息平台 UWA009.3-4-2024 I目次 前言....................................................................................................................................................................II 1范围.....................................................................................................................................................................1 2规范性引用文件................................................................................................................................................1 3术语和定义.........................................................................................................................................................1 4缩略语.................................................................................................................................................................3 5音频系统组成.....................................................................................................................................................3 6技术要求.............................................................................................................................................................3 6.1功能................................................................................................................................................................3 6.2电性能............................................................................................................................................................5 6.3声性能............................................................................................................................................................5 7一般测试条件.....................................................................................................................................................5 7.1环境条件........................................................................................................................................................5 7.2额定工作状态的调整...................................................................................................................................5 8测试信号.............................................................................................................................................................6 8.1声道映射相关...............................................................................................................................................6 8.2信源格式-采样率和量化比特......................................................................................................................6 8.3信源格式、解码-AudioVivid比特率.........................................................................................................7 8.4信源格式、解码、渲染-音频对象和ADM元数据..................................................................................7 8.5渲染-最佳听音位、按默认元数据渲染......................................................................................................7 8.6扬声器组和分频支持...................................................................................................................................8 9测试方法.............................................................................................................................................................8 9.1功能................................................................................................................................................................8 9.2电性能............................................................................................................................................................9 9.3声性能............................................................................................................................................................9 附录A车载音频系统典型扬