Psychoacoustic Characterisation of a Small Fixed-pitch Quadcopter
Psychoacoustic Characterisation of a Small Fixed-pitch Quadcopter
复制标题
小型定距四轴飞行器的心理声学表征
DOI：
--
复制
发表时间：
2019
期刊：
影响因子：
--
通讯作者：
J. Lawrence
中科院分区：
文献类型：
--
作者：
AJ Torija Martinez;R. Self;J. Lawrence
在这项研究中，在一个小型固定间距四轴飞行器上进行了一系列声学测量，包括在受控的室内声学环境中和在室外飞行时。在受控的室内条件下，将四轴飞行器固定在水平支架上，使用1个、2个和4个转子叶片操作，并且仅使用电动机工作，记录音频特征。在现场条件下，在地面上记录音频签名，改变四轴飞行器飞行轨迹和麦克风之间的相对（横向）距离和高度，以及四轴飞行器有效载荷。频谱，在窄带声级的形式，和一系列的声音质量指标（响度，锐度，粗糙度，波动强度和音调）从记录的音频签名计算，以调查特定的心理声学特性的小型四轴飞行器下的整套实验条件下测试。另一方面，在预测在城市环境中操作的四轴飞行器的潜在噪声问题的第一步骤中，在小型四轴飞行器与多个道路车辆和飞行器之间执行基于频率特性和声音质量度量的客观比较。
In this study, a series of acoustic measurements were taken on a small fixed-pitch quadcopter, both in a controlled indoor acoustic environment and while flying outdoors. At controlled indoor conditions, audio signatures were recorded with the quadcopter fixed to a horizontal stand, with 1, 2 and 4 rotor blades operating, and only with the electric motors working. At field conditions, audio signatures were recorded on the ground, varying the relative (lateral) distance and altitude between the quadcopter flight track and the microphone, and the quadcopter payload. Frequency spectra, in the form of narrowband sound-levels, and a series of sound quality metrics (loudness, sharpness, roughness, fluctuation strength and tonality) were calculated from the recorded audio signatures to investigate the specific psychoacoustic characteristics of the small quadcopter under the whole set of experimental conditions tested. On the other hand, at a first step to anticipate potential noise issues of quadcopters operating in urban environments, an objective comparison on the basis of frequency characteristics and sound quality metrics is performed between the small quadcopter and a number of road vehicles and aircraft.
当代飞机噪声音调内容的主观反应评估
影响因子：
3.4
作者：
Torija A
通讯作者：
Torija A