Timeline for How many samples per cycle(time period) is actually enough to reproduce the sine wave sound properly?
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Dec 29, 2015 at 13:12 | vote | accept | charansai | ||
| Dec 28, 2015 at 20:23 | comment | added | charansai | Eventually I will be working on Fan noise after sinusoidal noise so I was asking. Thanks for your time :))) | |
| Dec 28, 2015 at 20:12 | comment | added | robert bristow-johnson | and i have no idea what this has to do with Fan noise. | |
| Dec 28, 2015 at 20:11 | comment | added | robert bristow-johnson | first of all, the Sampling theorem actually tells you, independently of the sample rate, that at a very minimum you need something more than two samples per sinusoidal period. if your sample rate is 172.5 kHz, you can conceptually output a sinusoid of 86 kHz with that. but that is pushing the edges. | |
| Dec 28, 2015 at 12:28 | comment | added | charansai | And one more help, How many samples are good enough for good interpolation of Fan noise.? Any insight regarding this would be appreciated, I am out of thoughts as to how to approach this number (number of samples) | |
| Dec 28, 2015 at 12:28 | comment | added | charansai | Thank you. The point I missed is sampling rate. I guess my platform NI myRIO 1900 is sampling the output audio @172.5 kHz. How does this affect the audio quality ? I found here the higher sampling rates will introduce non linear distortion as sound cards will have non linear response for high frequencies. | |
| Dec 27, 2015 at 17:07 | history | answered | robert bristow-johnson | CC BY-SA 3.0 |