摘要
为了合理的评价室内机噪声中的音调声的可接受度,采取主观评价的方法,确定室内机噪声中混入的单频音的不可接受声压幅值,计算对应的音噪比,并拟合了音噪比的阈值公式,当音调的音噪比大于阈值时,室内机音调不可接受,反之可接受,采用音噪比阈值判断方法比OA差判断方法准确,比现场主观评价更加客观、便捷。
In order to reasonably evaluate the tone in indoor unit noise, a pure tone is implanted in indoor unit noise,and the sound pressure amplitude of tone is gradually increased, when subjective judgment result is unacceptable, then tone-to-noise ratio is calculated, and the value of tone-to-noise ratio is defined as the threshold, finally a formula of threshold is fitted, when the value of tone-to-noise ratio is greater than the value of threshold, the tone is unacceptable, otherwise is acceptable. It＇s more accurate to use tone-to-noise ratio method than use OA difference method, and is more objective and convenient than site subjective evaluation.
出处
《家用电器》
2017年第9期44-46,共3页
Home Appliance
关键词
空调
噪声
音调
音噪比
Airconditioner
Noise
Tone
Tone-to-noise ratio
