how does one measure these with an oscilloscope??
I am playing with a horn design but would like to measure these against frequency response and waterfall plots.
computer software free🙄 or buy oscilloscope if so how do i 😕do it
I am playing with a horn design but would like to measure these against frequency response and waterfall plots.
computer software free🙄 or buy oscilloscope if so how do i 😕do it
PC, built in sound chipset or soundcard and interface hardware (protection, amplification/attenuation) and software do most everything better than a 'scope for loudspeaker measurement frequencies
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A scope measures time so you would have to convert time to frequency.
Time=1/Frequency.
Having said that you can sweep your signal generator and watch the waveform increase and decrease on the scope. The sig gen will have frequencies marked on it.
Time=1/Frequency.
Having said that you can sweep your signal generator and watch the waveform increase and decrease on the scope. The sig gen will have frequencies marked on it.
Hey Charlie!
Commercial tools include OmniMic and Clio.
Free include Room EQ Wizard.
Why don't you start with REW first?
Best,
E
Commercial tools include OmniMic and Clio.
Free include Room EQ Wizard.
Why don't you start with REW first?
Best,
E
For electronics get a scope ( they work at much higher freqs. To see instability), for speaker testing a sound card is much better, the software does a lot more ( freq. plots, thd , waterfalls etc. ) and it will also generate test signals.
Also, a goood book to get you started in measurements, is Testing Loudspeakers by D'Appolito.
http://amzn.to/2lAGmuH
Best,
E
http://amzn.to/2lAGmuH
Best,
E
Sorry been a bit vague in my question.
I have REW. Berihnger mic etc and using laptop for general measuring but looking into trying to see the wave exiting the horn? If this is possible
I have seen pics of oscilloscope displays attached to certain speaker builds Danley, XRK build? Small syns, or bwaslow i think regards square wave
In other words do you simply connect a mic up to an oscilloscope and plonk a frequency through the driver?
I have REW. Berihnger mic etc and using laptop for general measuring but looking into trying to see the wave exiting the horn? If this is possible
I have seen pics of oscilloscope displays attached to certain speaker builds Danley, XRK build? Small syns, or bwaslow i think regards square wave
In other words do you simply connect a mic up to an oscilloscope and plonk a frequency through the driver?
Get a software oscilloscope. Hook up your mic to your sound card. Choose that sound card inlet as Ch1 on your oscilloscope. Feed your speaker suitable signal; triangle, square etc.
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The question would be - what do you think you'll see with the mic feeding the oscilloscope vs software on the PC?
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