Timeline for Why does my low pass filter diverge below 7000 Hz?
Current License: CC BY-SA 4.0
12 events
| when toggle format | what | by | license | comment | |
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| Dec 17, 2018 at 10:39 | comment | added | Matt L. | @Dr_Click: You're welcome, great that you found the mistake yourself! | |
| Dec 17, 2018 at 9:56 | comment | added | Dr_Click | Matt L., you were right : the mistake was in the routine. I considered "outputValues.get(1)" as my [y-1] but it was wrong. The last output is "outputValues.get(0)" as my current output is still not computed... Thank you very much for the time you spent on my question. You were very helpful ! :-D | |
| Dec 17, 2018 at 9:53 | vote | accept | Dr_Click | ||
| Dec 16, 2018 at 22:46 | comment | added | Dr_Click | Ok, I don't get the same impulse result. You are right, there is (more than) probably a mistake in my routine. When you read my code, did you fond something weird or a mistake ? | |
| Dec 16, 2018 at 22:44 | comment | added | Dr_Click | Ok, I don't get the same impulse result. You are right, there is (more than) probably a mistake in my routine. When you read my code, did you fond something weird or a mistake ? | |
| Dec 16, 2018 at 11:45 | comment | added | Matt L. | @Dr_Click: I added some info about the impulse response to my answer; use those to check your result. | |
| Dec 16, 2018 at 11:45 | history | edited | Matt L. | CC BY-SA 4.0 |
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| Dec 16, 2018 at 9:38 | comment | added | Dr_Click | I wrote a method to get the impulse response of my filter. But, how to know if the result is correct ? Is there a special site ? Or do I have to compare in MathLab / Octave ? | |
| Dec 15, 2018 at 17:22 | comment | added | Matt L. | @Dr_Click: You should use an impulse as input (a single value of 1 and then only zeros), and see what the output is. It should be the filter's impulse response, and it is easy to check if it's correct. | |
| Dec 15, 2018 at 9:57 | comment | added | Dr_Click | Thank you for that first answer. I will try Octave / Matlab this week-end. I edited my question and added the routine I'm using to calculate my output. Do you see something wrong in it ? That's often true that I don't see my own errors while they would be obvious for a third-part reader... | |
| Dec 14, 2018 at 10:51 | history | edited | Matt L. | CC BY-SA 4.0 |
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| Dec 14, 2018 at 10:42 | history | answered | Matt L. | CC BY-SA 4.0 |