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In Reply to: Doppler Effect in amplifiers posted by Roger_Paul on June 11, 2010 at 20:32:36:
Roger,
your approach sounds like the reverse of analogue (UK spelling) computing used to simulate mechanical systems before the advent of multi-body system dynamics (MBSD) 30 years ago. MBSD is of course reliant on numerical integration and therefore an approximation of reality and sensitive to initial conditions - and capable of correlating large non-linear systems with measured results (350 DOF being typical of a car model).
As a side bar the mechanical equivalent of the inerter (a non-grounded capacitor) has been used in Formula 1 racing for the past few years and will reach road cars via Penske some time soon.
Using numerical methods to simulate non-linear circuits is not unique, although many FE packages now include (linear) circuit simulation as a add-on - limiting understanding yet again to the frequency domain typical of classical Electrical Engineering.
Would I be correct in saying that your approach is to simulate time domain impulse (1kHz tone) inputs to the system and 'tune out' any harmonic and non-linear content on the output waveform?
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Follow Ups Full ThreadTopic - A truly exceptional dac-the H-cat dac - Norm 08:34:45 06/09/10 (148)
- Now that I've read the explanation it is very clear, this is either a major breakthrough - hermanesque 12:31:58 06/11/10 (33)
- Now that I've read the explanation it is very clear, this is either a major breakthrough - Roger_Paul 11:01:56 06/14/10 (31)
- RE: Now that I've read the explanation it is very clear, this is either a major breakthrough - hermanesque 16:14:38 06/14/10 (28)
- breakthrough? - Roger_Paul 18:21:46 06/14/10 (19)
- What is the purpose of asking rhetorical questions? - DaveK 22:13:05 06/14/10 (15)
- Wonderful wonderful... - rick_m 08:11:56 06/15/10 (9)
- Thanks for the compliment - DaveK 14:04:36 06/16/10 (8)
- RE: Thanks for the compliment - rick_m 16:31:14 06/16/10 (7)
- RE: Thanks for the compliment - Tony Lauck 18:28:43 06/16/10 (6)
- RE: Thanks for the compliment - rick_m 22:40:45 06/16/10 (2)
- RE: Thanks for the compliment - Tony Lauck 06:23:09 06/17/10 (1)
- RE: Thanks for the compliment - rick_m 07:47:44 06/17/10 (0)
- What is the purpose of asking rhetorical questions? - Roger_Paul 19:08:55 06/16/10 (2)
- Like I said, it's not MY logic. nt - Tony Lauck 19:16:12 06/16/10 (1)
- Dave K description - Roger_Paul 19:37:28 06/16/10 (0)
- What is the purpose of asking rhetorical questions? - Roger_Paul 22:49:59 06/14/10 (1)
- Sure, but not harmonic distortion - DaveK 23:35:43 06/14/10 (0)
- I'm on board with most of that but not completely - hermanesque 22:33:44 06/14/10 (2)
- RE: I'm on board with most of that but not completely - DaveK 23:27:44 06/14/10 (1)
- I see you understand the process - hermanesque 23:47:51 06/14/10 (0)
- RE: breakthrough? - Tony Lauck 18:45:15 06/14/10 (2)
- breakthrough? - Roger_Paul 19:35:45 06/14/10 (1)
- RE: breakthrough? - Tony Lauck 00:11:19 06/15/10 (0)
- Nice link! - Charles Hansen 17:34:50 06/14/10 (7)
- Nice link! - Roger_Paul 17:55:54 06/14/10 (6)
- RE: Nice link! - fmak 22:08:42 06/14/10 (0)
- it's different because you get 2 different results - hermanesque 20:19:34 06/14/10 (4)
- breakthrough? - Roger_Paul 21:37:46 06/14/10 (3)
- Velocity of what? (nt) - DaveK 22:24:49 06/14/10 (1)
- exactly /nt - hermanesque 22:34:16 06/14/10 (0)
- I never said AM produces harmonics. But you asked what was the difference in AM and harmonic distortion - hermanesque 22:23:19 06/14/10 (0)
- RE: Now that I've read the explanation it is very clear, this is either a major breakthrough - DaveK 14:18:27 06/14/10 (1)
- Pitch - Tony Lauck 18:52:49 06/14/10 (0)
- I'm glad you wrote this; I was about to - Kristian 09:05:54 06/14/10 (0)
- RE: A truly exceptional claim - fmak 11:13:06 06/11/10 (35)
- RE: A truly exceptional claim - Tony Lauck 12:00:48 06/11/10 (34)
- Maybe.... - alan m. kafton 13:15:13 06/11/10 (33)
- RE: Maybe.... - Tony Lauck 13:36:52 06/11/10 (32)
- RE: Maybe.... - fmak 22:04:49 06/11/10 (31)
- RE: Maybe.... - Tony Lauck 06:31:05 06/12/10 (30)
- Are alternatively, that he has done it. nt - Norm 14:50:06 06/12/10 (29)
- No, most assuredly he has not - hermanesque 21:03:02 06/12/10 (27)
- No, most assuredly he has not - Roger_Paul 23:49:25 06/12/10 (26)
- like I said - hermanesque 08:10:01 06/13/10 (25)
- RE: like I said-Yes - fmak 01:46:51 06/14/10 (0)
- I think you need to add a little humility yourself. - Norm 08:56:14 06/13/10 (23)
- RE: I think you need to add a little humility yourself. - fmak 01:47:47 06/14/10 (2)
- If you are right that it is alchemy. Having heard, I don't think so. nt - Norm 15:16:06 06/14/10 (0)
- If you are right that it is alchemy. Having heard, I don't think so. nt - Norm 12:17:31 06/14/10 (0)
- not really - hermanesque 09:52:08 06/13/10 (19)
- A different example of a Unique Scheme - Tony Lauck 13:32:36 06/13/10 (17)
- RE: A different example of a Unique Scheme - fmak 01:52:07 06/14/10 (6)
- RE: A different example of a Unique Scheme - Tony Lauck 06:38:27 06/14/10 (4)
- A different example of a Unique Scheme - Roger_Paul 07:10:33 06/14/10 (3)
- RE: A different example of a Unique Scheme - Tony Lauck 07:57:15 06/14/10 (2)
- Bad experience - Roger_Paul 08:34:57 06/14/10 (1)
- RE: Bad experience - Tony Lauck 08:58:26 06/14/10 (0)
- RE: A different example of a Unique Scheme - Ryelands 02:46:21 06/14/10 (0)
- A different example of a Unique Scheme - Roger_Paul 17:11:19 06/13/10 (2)
- I already posted my advice for you. - Tony Lauck 17:42:50 06/13/10 (0)
- diversion - hermanesque 17:35:46 06/13/10 (0)
- another example to set off your BS detectors - hermanesque 16:02:42 06/13/10 (6)
- Yes, liike Thomas Edison. nt - Norm 20:10:18 06/13/10 (5)
- RE: Yes, liike Thomas Edison. nt - rick_m 20:38:34 06/13/10 (4)
- There is evidence he stole others' inventions. nt - Tony Lauck 08:24:32 06/14/10 (0)
- do a little research on Edison and discover he was in very large part a BS artist - hermanesque 21:44:43 06/13/10 (2)
- RE: do a little research on Edison and discover he was in very large part a BS artist - rick_m 06:08:15 06/14/10 (1)
- however - hermanesque 10:05:47 06/14/10 (0)
- It is harmonic distortion caused by the electronics - Norm 13:19:01 06/13/10 (0)
- RE: Are alternatively, that he has done it. nt - Tony Lauck 18:28:40 06/12/10 (0)
- Pricing? [nt] - alan m. kafton 17:46:40 06/10/10 (3)
- $1995 nt - Norm 19:15:11 06/10/10 (2)
- RE: $1995 nt - alan m. kafton 23:44:41 06/10/10 (1)
- The Minerva or the Dac202? - Norm 11:41:54 06/11/10 (0)
- keep us in touch with this - thanks! n/t - panhead 22:38:22 06/09/10 (0)
- RE: A truly exceptional dac-the H-cat dac - fmak 09:28:27 06/09/10 (59)
- Its clear to me - Dawnrazor 07:17:20 06/10/10 (0)
- Dopper is also red and blue shift in light. nt - Norm 09:32:48 06/09/10 (57)
- RE: Dopper is also red and blue shift in light. nt - Ryelands 10:27:06 06/09/10 (56)
- All that I can really understand about this circuit is that like in every wave form Doppler affects the pitch. - Norm 10:51:25 06/09/10 (55)
- RE: All that I can really understand about this circuit is that like in every wave form Doppler affects the pitch. - fmak 11:05:48 06/09/10 (54)
- RE: All that I can really understand about this circuit is that like in every wave form Doppler affects the pitch. - Mercman 12:17:56 06/09/10 (52)
- RE: All that I can really understand about this circuit is that like in every wave form Doppler affects the pitch. - fmak 22:11:54 06/09/10 (0)
- RE: All that I can really understand about this circuit is that like in every wave form Doppler affects the pitch. - Tony Lauck 14:55:03 06/09/10 (50)
- RE: All that I can really understand about this circuit is that like in every wave form Doppler affects the pitch. - Norm 19:56:20 06/09/10 (39)
- RE: All that I can really understand about this circuit is that like in every wave form Doppler affects the pitch. - Tony Lauck 08:57:28 06/10/10 (38)
- I really see no reason to accept you as an expert or the judge of circuitry. - Norm 11:45:09 06/10/10 (2)
- RE: I really see no reason to accept you as an expert or the judge of circuitry. - fmak 01:33:52 06/11/10 (0)
- RE: I really see no reason to accept you as an expert or the judge of circuitry. - Tony Lauck 12:29:08 06/10/10 (0)
- Carefully chosen question - Roger_Paul 11:14:49 06/10/10 (33)
- I agree with Tony.......harmonic distortion in electronic circuits is a well understood phenomenon. - hermanesque 07:57:20 06/11/10 (0)
- RE: Carefully chosen question - fmak 01:36:59 06/11/10 (0)
- Please, if you're in the biz, could you please register as such? - Chris Garrett 16:21:53 06/10/10 (0)
- RE: Carefully chosen question - Tony Lauck 11:39:25 06/10/10 (29)
- Carefully chosen question - Roger_Paul 15:33:08 06/10/10 (27)
- What happens when I listen to 'Alvin and the Chipmunks' with this DAC? - andy_c 08:00:22 06/11/10 (0)
- RE: Carefully chosen question - rick_m 07:18:04 06/11/10 (0)
- RE: Carefully chosen question-What is being converted? - fmak 01:43:54 06/11/10 (0)
- RE: Carefully chosen question - Ryelands 23:53:57 06/10/10 (18)
- components and room interactions - Roger_Paul 09:19:20 06/11/10 (17)
- RE: components and room interactions - Ryelands 10:32:50 06/11/10 (16)
- Doppler Effect in amplifiers - Roger_Paul 11:44:47 06/11/10 (15)
- RE: Doppler Effect in amplifiers - rick_m 07:53:35 06/12/10 (0)
- RE: Doppler Effect in amplifiers - fmak 03:36:19 06/12/10 (0)
- RE: Doppler Effect in amplifiers - Mercman 15:22:41 06/11/10 (12)
- RE: Doppler Effect in amplifiers - fmak 03:37:58 06/12/10 (0)
- Doppler Effect in amplifiers - Roger_Paul 15:30:16 06/11/10 (10)
- RE: Doppler Effect in amplifiers - Mercman 15:51:08 06/11/10 (9)
- Doppler Effect in amplifiers - Roger_Paul 16:52:40 06/11/10 (8)
- RE: Doppler Effect in amplifiers - ronpod 19:25:11 06/11/10 (7)
- Doppler Effect in amplifiers - Roger_Paul 20:32:36 06/11/10 (6)
- RE: Doppler Effect in amplifiers - monaco 04:53:53 06/12/10 (4)
- RE: Doppler Effect in amplifiers - ronpod 10:46:20 06/13/10 (3)
- RE: Doppler Effect in amplifiers - Roger_Paul 16:06:47 06/13/10 (2)
- RE: Doppler Effect in amplifiers - ronpod 20:59:58 06/13/10 (0)
- excellent obfuscation, I particularly like the cool sounding stuff you made up that almost sounds like it's real - hermanesque 18:24:29 06/13/10 (0)
- how about submitting your findings for peer review? - hermanesque 22:05:54 06/11/10 (0)
- Carefully chosen answer - Tony Lauck 18:29:43 06/10/10 (2)
- RE: Carefully chosen answer - fmak 01:46:17 06/11/10 (1)
- RE: Carefully chosen answer - Tony Lauck 06:12:44 06/11/10 (0)
- RE: Carefully chosen question - mike tame 17:01:29 06/10/10 (1)
- components and room interactions - Roger_Paul 20:18:22 06/10/10 (0)
- RE: Carefully chosen question - Phelonious Ponk 13:04:36 06/10/10 (0)
- RE: All that I can really understand about this circuit is that like in every wave form Doppler affects the pitch. - Mercman 11:07:42 06/10/10 (0)
- RE: All that I can really understand about this circuit is that like in every wave form Doppler affects the pitch. - Mercman 16:15:12 06/09/10 (9)
- RE: All that I can really understand about this circuit is that like in every wave form Doppler affects the pitch. - fmak 22:18:49 06/09/10 (8)
- I do not take it as a poke at me, but I doubt if what you read on Wikipedia is sufficient. - Norm 11:48:07 06/10/10 (6)
- RE:I don't need wiki; I worked on laser doppler measurements once - fmak 12:11:38 06/10/10 (5)
- Maybe, or maybe he doesn't want to lead people to what he is doing. - Norm 13:06:46 06/10/10 (4)
- RE: Maybe, or maybe he doesn't want to lead people to what he is doing. - fmak 22:19:22 06/10/10 (3)
- Are you talking about the UK act? Certainly in the US and as I recall in the UK, few sellers come clean. nt - Norm 11:49:45 06/11/10 (2)
- RE: Are you talking about the UK act? Certainly in the US and as I recall in the UK, few sellers come clean. nt - fmak 22:08:20 06/11/10 (0)
- RE: Are you talking about the UK act? Certainly in the US and as I recall in the UK, few sellers come clean. nt - Tony Lauck 12:26:51 06/11/10 (0)
- Be nicer to your friends here. (nt) - Mercman 05:58:19 06/10/10 (0)
- Could be. nt - Norm 11:07:33 06/09/10 (0)
- RE: A truly exceptional dac-the H-cat dac - ted_b 09:24:08 06/09/10 (12)
- I suspect that it doesn't. - Norm 09:31:15 06/09/10 (11)
- But you said you played a hirez file - ted_b 09:47:41 06/09/10 (10)
- I played a Reference Recording disc that came with the Minerva. - Norm 09:57:59 06/09/10 (9)
- Pure Music shows the rate it is playing on my computer. /nt - hermanesque 12:34:46 06/09/10 (8)
- Where? nt - Norm 13:13:14 06/09/10 (7)
- just above the iTunes window - hermanesque 12:11:52 06/10/10 (4)
- Is this only when playing from memory? I don't play from memory as I have a SSD. nt - Norm 13:09:29 06/10/10 (3)
- When I turn off memory play it still shows the rate and says "playing from disk" /nt - hermanesque 15:37:05 06/10/10 (0)
- RE: Is this only when playing from memory? I don't play from memory as I have a SSD. nt - Mercman 13:59:25 06/10/10 (1)
- Will do, thanks. nt - Norm 14:24:03 06/10/10 (0)
- H-Cat DAC - tailspinrex 15:05:34 06/09/10 (1)
- RE: H-Cat DAC - Norm 16:57:41 06/09/10 (0)
Follow Ups
- RE: Doppler Effect in amplifiers - monaco 04:53:53 06/12/10 (4)
- RE: Doppler Effect in amplifiers - ronpod 10:46:20 06/13/10 (3)
- RE: Doppler Effect in amplifiers - Roger_Paul 16:06:47 06/13/10 (2)
- RE: Doppler Effect in amplifiers - ronpod 20:59:58 06/13/10 (0)
- excellent obfuscation, I particularly like the cool sounding stuff you made up that almost sounds like it's real - hermanesque 18:24:29 06/13/10 (0)