特性: | KLIPPEL R&D系统 |
|---|---|
| 远场离轴SPL响应 | NFS, SCN, POL, SCN-NF |
| 方向响应图 | NFS, SCN, POL, SCN-NF |
| 极坐标图和气球图 | NFS, SCN, POL, SCN-NF |
| 覆盖范围和辐射角 | NFS, SCN, POL, SCN-NF |
| 方向性指数 | NFS, SCN, POL, SCN-NF |
| 声功率响应 | NFS, TRF, SCN-NF |
KLIPPEL R&D系统 (开发)
模组 | 备注 |
|---|---|
TRF可测量消声条件下工作的扬声器的声压响应。同样也可以测量扩散声场中运行的扬声器的声压，并考虑房间的混响时间计算声功率响应。 | |
SCN通过激光扫描技术测量辐射器的机械振动和几何结构，来计算其最重要的方向性特性。 | |
POL模块控制传递函数模块 (TRF)和和转台，来测量球坐标系中定义距离处的声压响应。 | |
| 近场扫描仪 (NFS) | 3D近场扫描仪为被测声源辐射的直达声提供全自动声学测量。辐射声可在扫描面外部3D空间内任意所需距离和角度处进行确定。 |
KLIPPEL产品模板
模板名称 | 应用 |
|---|---|
TRF SPL + waterfall | 声压级和累积衰减频谱 |
TRF sensitivity (Mic 2) | 使用麦克风校准器在IN2处校准麦克风 |
TRF true acoustical phase | 无时延的总相位 |
TRF 3rd oct. spectr. analyzer | 连续循环测量得到在IN1采集并通过1/3倍频程积分的信号的频谱 |
IEC 20.6 Mean SPL | 根据IEC 60268-5第20.6章节测量规定频带内的平均声压级 |
IEC 21.2 Frequency Range | 根据IEC 60268-5第21.2章节测量有效频率范围 |
IEC 22.4 Mean Efficiency | 根据IEC 60268-5第22.4章节测量频带内的平均效率 |
Response Smoothness | 频率响应平滑 |
SPL Merging Near/Farfield | 根据应用笔记AN39合并近场和远场响应 |
音频工程学会
AES2 Recommended practice Specification of Loudspeaker Components Used in Professional Audio and Sound Reinforcement (AES2推荐的用于专业音频和声音增强的扬声器组件的实用规范)
AES56 Standard on acoustics – Sound source modeling – Loudspeaker polar radiation measurement (AES56 声学标准 - 声源建模 - 扬声器极平面辐射测量)
消费电子协会
CEA-2034 Standard Method of Measurement for In-Home Loudspeakers (CEA-2034 测量家用扬声器的标准方法)
国际电工委员会
IEC 60268-5 Sound System Equipment, Part 5: Loudspeakers ( IEC 60268-5声音系统设备，第5部分: 扬声器)
Mark R. Gander, “Ground Plane Acoustic Measurement of Loudspeaker Systems, ” J. of Audio Eng. Soc., Volume 30, Issue 10, pp.723-731, October 1982.
W. Ahnert, et al., “Accurate Electroacoustic Prediction Utilizing the Complex Frequency Response of Far-Field Polar Measurements,” presented at the 108th Convention of the Audio Eng. Soc. (February 2000), Paper no. 5129.
W. Klippel, et al., “Distributed Mechanical Parameters of Loudspeakers Part 2: Diagnostics,” J. of Audio Eng. Soc. 57, No. 9, pp. 696-708 (2009 Sept.).
W. Klippel, et al., “Distributed Mechanical Parameters of Loudspeakers Part 1: Measurement,” J. of Audio Eng. Soc. 57, No. 9, pp. 500-511 (2009 Sept.).
J. Baird, et al., “The Analysis, Interaction, and Measurement of Loudspeaker Far-Field Polar Patterns,” presented at 106th Convention of Audio Eng. Soc., May 1999, Paper no. 4949.