Re: Nyquist Rate & Distortion, A Visual Example: Issues

2021-05-02 Thread James Hayek
Thanks, Christophe and Jerry. Using the cos(x) wave makes sense, providing a value of 1 and explains why I had a ridiculously small number when using sin(x). Next, I will try to output all the time domain signals onto one output sink (spec-a) to keep the scaling the same and show the difference mo

Re: Nyquist Rate & Distortion, A Visual Example: Issues

2021-04-26 Thread Christophe Seguinot
of course twice not half. Thanks Jerry and sorry for writing to fast without correcting these evidences! On 26/04/2021 16:58, geraldfenkell wrote: is it not: The sampling frequency must be twice the max f

Re: Nyquist Rate & Distortion, A Visual Example: Issues

2021-04-26 Thread Christophe Seguinot
Hi James Your first signal (upper branch) is one of those I like to show to my students to explain the Nyquist sampling theorem. 1- As Daniel said, sampling frequency Fs  must be higher than half the maximum frequency Fmax: This is the Nyquist Sampling

Re: Nyquist Rate & Distortion, A Visual Example: Issues

2021-04-25 Thread James Hayek
It definitely helps, thank you. One thing I noticed, and don't know how to address is why the ""Correctly Sampled Signal"" Time Sink shows the amplitude on the nanoscale.My signal source has an amplitude of one and the Time Sink should be displaying a range from -1 to 1. I placed a rational resamp

Re: Nyquist Rate & Distortion, A Visual Example: Issues

2021-04-25 Thread Daniel Estévez
El 25/4/21 a las 18:42, James Hayek escribió: Apologies if I missed any response from my prior thread. I wanted to elaborate more here, on what I am attempting to do. The goal is to create a GRC file to show how sampling rates affect a generated signal. Knowing, for real samples, fs (sampling r