Comment summary #9
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Comment 81 ... 90
| date | article | author | comment |
| 09 feb 2019 21:11:52 | Additive synthese waveform generator | Bing | Freddy, This worked on chrome last Sunday, but now it is not working again. Could you please check if the new code is removed by accident. My school issued laptop only has chrome and explorer. Thank you, Bing |
| 05 feb 2019 10:01:45 | Additive synthese waveform generator | Freddy | I think i've fixed the problem. Chrome introduced last december a new auto play policy: Audio on a web page must be manually started by user interaction. It required some extra code. Thanks for your remark. |
| 05 feb 2019 09:32:37 | Additive synthese waveform generator | Freddy | Hello Bing, Indeed, it looks like the sound is not working anymore in Chrome. Other browser (Firefox, Opera, Edge) i've tested quickly work still fine. I will dive in to it and you can use the another browser in the mean time. |
| 05 feb 2019 01:31:21 | Additive synthese waveform generator | Bing | I used to use this website to show my students how the harmonic series sound like. Why is it not working any more? Do I need to create an account now? |
| 10 jan 2019 11:58:59 | Arduino wattmeter | Freddy | Hey Tommy, an inverting amplifier was easier to implement. To get the signal back with normal polarity, the digitized value must only be inverted once more. It is done in the "ISR(ADC_vect)" with the line "adcVal = -adcVal;" where the inverse of every current sample is calculated. There is no need and it is higly undesirable to calculate phase differences and shift signals. This would make only sense for a sine shaped signals and shift it 180 deg. This meter can handle every signal shape. Imagine a sawtooth signal and look at de differences between the inverted version and the 180 deg shifted version. And how about DC, jou can do nothing with phase shift there. |
| 10 jan 2019 03:31:19 | Arduino wattmeter | Tommy | Hello, Why IC1 (Op-amp) is configured as Inverting amplifier? I am thinking why not configurate it as Non-inverting amplifier. If it is configured as Non-inverting amplifier, then the program no need to shift the current signal for calculating the phase difference between voltage and current. Please reply. Thank You very much. |
| 27 dec 2018 12:50:07 | Additive synthese waveform generator | Freddy | greenNights, never seen so much negativity in one comment. Is everything all right? I don't see how stereo can improve this demonstration. The code is written in Javascript, not Java. Furthermore I can hear the differences in sound between the waveforms just fine. And you should maybe spend some time reading the comment instructions. |
| 27 dec 2018 10:56:46 | Additive synthese waveform generator | greenNights | Well SawTooth and Impulse, sounds about the same, and Square and Trap also very similar sounding. That's java: only passed a few numbers to the waveTable. Use the more accurate drawing method used on this page, to make a wave FILE, and you'll hear the real wave, ... wow and you dont allow urls, thats YOUR LOSS, because I was going to show everyone the code. world of losers that think they are conscious. ... had to take it a step further. Also am not seeing stereo example, as well as not hearing the real wave with Java, oscillator.setPeriodicWave(waveTable); |
| 01 dec 2018 12:51:33 | Additive synthese waveform generator | Freddy | Sorry, I don't know, I've never worked with Powerpoint. Isn't it possible to embed a website in a Powerpoint slide? |
| 30 nov 2018 12:26:25 | Additive synthese waveform generator | Moshe Decalo (PhD) | Exellent demonstration! Barvo!! I am a lecturer in a college. How can I get this demo on Power-point for classroom use? thank you... MD |