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# How to find sampling rate watch

1. on a grapgh of p.d against time, with sample points indicated, how can i find the sampling rate?

A bit like the grapgh i have attached

Attachment 698104

H3n
2. it's the number of samples per unit time, i.e. 1/(interval between samples)
3. (Original post by Joinedup)
it's the number of samples per unit time, i.e. 1/(interval between samples)
Oh i see, Thank you.
Is there any chance you could explain to me what Aliasing is?
4. (Original post by joyoustele)
Oh i see, Thank you.
Is there any chance you could explain to me what Aliasing is?
You're probably interested in temporal aliasing but it also occurs in imaging.

https://en.wikipedia.org/wiki/Aliasing

You probably can see the effect of a low sampling rate from one of the diagrams in that article...

https://en.wikipedia.org/wiki/Aliasi...asingSines.svg

say the input signal is the red waveform - with an insufficient sampling rate it would be be impossible to tell from the output of the sampling that the input wasn't the blue signal - and an audio system would play back the blue note - which wasn't there in the input.
5. (Original post by Joinedup)
You're probably interested in temporal aliasing but it also occurs in imaging.

https://en.wikipedia.org/wiki/Aliasing

You probably can see the effect of a low sampling rate from one of the diagrams in that article...

https://en.wikipedia.org/wiki/Aliasi...asingSines.svg

say the input signal is the red waveform - with an insufficient sampling rate it would be be impossible to tell from the output of the sampling that the input wasn't the blue signal - and an audio system would play back the blue note - which wasn't there in the input.
Thanks

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