| 1. | Electroacoustics . octave - band and fractional - octave - band filters
电声学.倍频带和分倍频带滤波器 |
| 2. | Electroacoustics - octave - band and fractional - octave - band filters
电声学.倍频带和分倍频带滤波器 |
| 3. | Electroacoustics - octave - band and fractional - octave - band filters
电声学.倍频带和分倍频带滤波器 |
| 4. | Octave - band and third - octave - band analyzers for sounds and vibrations
声和振动用的倍频带及三分之一倍频带分析器 |
| 5. | Electroacoustics - octave - band and fractional - octave - band filters ; amendment 1
电声学.倍频带和分倍频带滤波器.修改件1 |
| 6. | Octave - band and fractional octave - band analog and digital filters , specifications for
倍频带和分数倍频带模拟及数字滤波器的规范 |
| 7. | Standard test method for evaluating masking sound in open offices using a - weighted and one - third octave band sound pressure levels
用a加权和1 3倍频带声压级评价敞开式办公间掩蔽声的标准试验方法 |
| 8. | Electroacoustics . instruments for measurement of aircraft noise . performance requirements for systems to measure one - thirs - octave band sound pressure levels in noise certification of transport - category aeroplanes
电声学.航空噪声测量仪.运输机噪声检定的三分之一倍频带声压级系统测量用性能要求 |
