Re: Rational resample before FFT, and FFT rate

[John Ackermann N8UR]

On 4/30/24 21:40, Gary Schafer wrote:

> Sorry about my misunderstanding. I recreated a portion of your flowgraph 
> just to see what it would do. I left the 16 kHz sample rate but with a 
> 2^15 time record size. Once I ran the flowgraph, it was 17.5 seconds 
> before the Number Sink updated, and 34 seconds before the spectral 
> display (vector sink) updated. However, after that time, each update 
> roughly twice per second. Is that different from what you're seeing?

I disabled the rational resample so I'm using 500 samples/sec and 500 
bins rather than 512/512, and that has broken the vector sink,.  It's 
getting late here so let me experiment more tomorrow and get back with 
some results.

Thanks!
John