Can REW software be used to record noise time waveform from sound source in *.wav or equivalent format?

[ronkini.joseph]

Hi

Can REW software be used to record noise time waveform from sound source in *.wav or equivalent format? If yes, can some one guide thru option.

Thanks in advance
Ronkini

 

[John Mulcahy]

No, REW is not an audio recording application. Audacity can do that.

 

[ronkini.joseph]

Hello

In Audacity there is no provision for microphone to use calibration file. Point is how to ensure correct amplitude of sound signal (time waveform) being measured? If later time waveform of sound signal is to be use for further postprocessing (1/3rd octave band spectrum, level calculations, ...) w/o correct acquisition of amplitude, all calculations are questionable. I am struggling on this aspect for last few days. Appreciate if you can clarify.

Thanks in advance
Ronkini

 

[John Mulcahy]

You can analyse in REW if you wish, there is an import option for audio data as long as the clip isn't too long and WAV files can be dropped onto the RTA. REW applies cal files to the frequency domain results of analysis.

 

[ronkini.joseph]

You can analyse in REW if you wish, there is an import option for audio data as long as the clip isn't too long and WAV files can be dropped onto the RTA. REW applies cal files to the frequency domain results of analysis.

Hi

My question was more related to amplitude of acquired time waveform signal of sound source. As you mentioned REW can't measure time waveform of sound source, Audacity can't use calibration file. How to ensure the amplitude of measured sound signal (time waveform)?

Thanks

 

[John Mulcahy]

If you want to apply calibration file corrections in the time domain you would have to create a filter with the appropriate inverse response and apply it. If the analysis data you want comes from the frequency domain (which can include levels) then the correction can be done much more easily in the frequency domain when generating analysis results, as REW does.