我想用声卡采集一段声音,然后使用SV Continuous Swept-Sine Frequency Response VI,进行分析,但是总是出错,错误信息,
错误-1916发生于 sv_Get Continuous Swept Sine Settings (1 Ch).vi:1610008
可能原因
Sound & Vibration: Expected waveform attribute was not found.
请问大家,这个是什么原因造成的呢,我该怎么用声卡产生scaled signals [EU] 的信号呢?
您好!
这是一个潜在的问题,给出的解释如下:
The lower-level VI that is generating this error is located at the following path: SoundVib_ContSweptSine.lvlib:SV Continuous Swept-Sine Frequency Response.vi -> SoundVib_ContSweptSine.lvlib:sv_Get Even-Angle Signal.vi -> SoundVib_ContSweptSine.lvlib:sv_Get Stimulus Amplitdue.vi -> SoundVib_ContSweptSine.lvlib:sv_Check for Continuous Swept Settings.vi.
您可以通过以下方法验证并复现问题:
1) Run Sine-Swept VI Error.vi (attached)
2) Notice the error that is generated
3) Run Continuous Swept-Sine Measurements (DAQmx) (Located in Example Finder > Toolkits and Modules > Sound and Vibration > Analyzing and Processing Signals > Swept Sine Measurements > Continuous Swept-Sine Measurements (DAQmx))
4) Notice that no error is generated
您可以参考范例“Continuous Swept-Sine Measurements (DAQmx)”是如何获取该信号成分的。