CPB 分析仪对时域数据进行滤波分析，主要用于声学信号分析。 Overall Bands Weighting：对 L 和 A 计权总值计权,是对总级值计权,该选项相当于提供了一个”声级计”功能。 Linear 即线性平均，主要用于分析稳态信号，对参与平均的各次样本取等权重加权，平均将去除外界随机噪声的影响。 Exponential 即指数平均，主要用于非稳态信号测量。 指数平均对最近时刻的样本加权权重最大，可用于观察信号的当前趋势。 Enable Hold 峰值保持方式，将保持分析过程中每个频段滤波 …

1 倍频程（CPB /Constant PercentBandwidth等比带宽） 倍频程：频谱横坐标非等间隔，而是等比间隔，通常按1/n倍频进行增加。 效果：低频处，频率分辨率高；高频时，频率分辨率低。

2022年4月22日 · CPB is an abbreviation and stands for constant percentage bandwidth. But what does it mean? Let’s approach the subject by analyzing the terms one by one: Bandwidth: The bandwidth describes an environment around a chosen center value. A bandwidth of ±4 Hz around a center value of 40 Hz means that we consider values in the range of 36-44 Hz.

As opposed to FFT analysis, which has a specific number of lines per linear frequency (x axis), CPB (constant percentage bandwidth, called also octave) has a specific number of lines if logarithmic frequency x axis is used.

倍频程 (CPB /Constant PercentBandwidth等比带宽) 倍频程： 频谱横坐标非等间隔，而是等比间隔，通常按1/ n 倍频进行增加。 效果： 低频处，频率分辨率高；高频时，频率分辨率低。

2002年8月6日 · The CPB (constant percentage bandwidth) concept is applied to time-frequency analysis. The immediate CPB equivalent of the most common constant bandwidth approach, namely the STFTs (short-time Fourier transforms), turned out to be the WTs (wavelet transforms).

此BK Connect®应用程序能进行1/n倍频（或恒定百分比带宽(CPB)）分析。 数据可以通过从只有一个到数百个通道采集，这些通道通过采集硬件连接到一台记录信号的PC上。

Octave band analysis has been defined as a standard for acoustic analysis. This type of spectrum is called constant percentage band (CPB) because each frequency band is a constant percentage of its center frequency. In other words, the analysis bands become wider in proportion to their center frequencies.