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#41
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1st Project Lessons Learned--So Far
"hank alrich" skrev i en meddelelse
... Not sure this helps but. http://www.mediacollege.com/audio/no...nge-noise.html Thank you Hank, he should be totally confused by now. They don't seem to know how to google. Take white noise and roll it off with 6 dB pr. octave above 320 Hz. Someone back then, I think it was Rodney in alt.sci.physics.acoustics, told me that there is a standard noise with that characteristic. It is based on analyzing a lot of natural recordings with Cool Edit and a Pentium 133 computer to see if a "natural sound characteristic" existed. The idea was an expansion of something a dane at an AES meeting in Radiohuset about restoration explained about comparing a new recording of a string quartet with an old to get data that would be useful in recovering the original frequency content, I'm very sorry that I can not remember his name. There are then some modifying factors to be aware of, magnetic recordings generally have less treble and for large rooms that also applies and there will be extra bass in some musical genres. The mechanism appears to me to be the sound radiation characteristics of objects, with increased frequency you get increased directivity. I also made a lot of crest factor analyses. Being an enthusiastic idiot I tried to put too much stuff in one paper instead of in dividing it in three, so it didn't pass the review process for the journal. Kind regards Peter Larsen |
#42
Posted to rec.audio.pro
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1st Project Lessons Learned--So Far
It is based on analyzing a lot of natural recordings with Cool Edit and a Pentium 133 computer to see if a "natural sound characteristic" existed. The idea was an expansion of something a dane at an AES meeting in Radiohuset about restoration explained about comparing a new recording of a string quartet with an old to get data that would be useful in recovering the original frequency content, I'm very sorry that I can not remember his name. this is an interesting topic. I was under the impression that the average spectral density of most music follows the 75us FM radio de-emphasis curve. It is flat from 20 Hz to about 2.2 kHz and rolls off at 6 dB per octave above 2.2 kHz. And I do find that recordings that violate this on the high side do seem to sound harsh. Then another tib-bit..... It all depends on the type of analyzer you use. A so called real time octave based audio analyzer has "bins" that get wider as you go up in frequency. A "normal" spectrum anlyzer has "bins" that are of a constant bandwidth. This makes no difference when you are analyzing tones. But when you are analyzing distributed wideband spectrums, it can make a difference. For example, pink noise appears "flat" on an RTA and slopes down on an SA. White noise appears flat on an SA and slopes upwards on an RTA. Having fun yet? Mark |
#43
Posted to rec.audio.pro
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1st Project Lessons Learned--So Far
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#45
Posted to rec.audio.pro
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1st Project Lessons Learned--So Far
среда, 29. април 2015. 18..20.10 UTC+2, Peter Larsen је написао/ла:
"hank alrich" skrev i en meddelelse ... Not sure this helps but. http://www.mediacollege.com/audio/no...nge-noise.html Thank you Hank, he should be totally confused by now. They don't seem to know how to google. Where can I google for the meaning of above statement?! To avoid any confusion: Provided you were talking about me, I mean, obviously, you continued on Hank's response to my post ... Why would you want me confused and/or why do you think I am? Why do you think Hank would want to cunfuse me? Why do you think I do not know how to Google? |
#46
Posted to rec.audio.pro
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1st Project Lessons Learned--So Far
"Luxey" skrev i en meddelelse
... ?????, 29. ????? 2015. 18.20.10 UTC+2, Peter Larsen ?? ???????/??: "hank alrich" skrev i en meddelelse ... Not sure this helps but. http://www.mediacollege.com/audio/no...nge-noise.html Thank you Hank, he should be totally confused by now. They don't seem to know how to google. Where can I google for the meaning of above statement?! "They" point to mediacollege.com and their webpage with nonsense. To avoid any confusion: Provided you were talking about me, I mean, obviously, you continued on Hank's response to my post ... Yes, and I was perhaps just a wee bit sarcastic but skipped the smiley. Why would you want me confused and/or why do you think I am? No, I would not want you confused, but if you followed Hanks link you would be. Why do you think Hank would want to cunfuse me? Nothing points in that direction nor was any such meaning intended. Why do you think I do not know how to Google? I don't. Again, "they" did NOT point at you, it points at mediacollege.com. Mediacollege.com does not know how to google, otherwise they would not have posted such nonsense. Also Hank would have been better off if remembering to google groups.google.com as he was looking for stuff that first appeared on usenet. Is all resolved? Kind regards Peter Larsen |
#47
Posted to rec.audio.pro
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1st Project Lessons Learned--So Far
"Don Pearce" skrev i en meddelelse
... I've taken the spectra for a bunch of pieces, and they all follow a trend - about 30dB down at 10kHz compared to 100Hz. http://www.soundthoughts.co.uk/look/spectro.htm I need to think about what this means. I suspect the devil is in the detail - local deviations from the straight line. You need to look at natural sound sources, one such I included was a couple of sound effects sampler cd's from trade shows. Factors that are kinda obvious are dispersion of sound from large objects and mass damping, both should cause hf radiated energy to drop off in my view of the world. You're probably the one that knows the math ... What Aranjuez is is, it is obviously peculiar, fascinating! d Kind regards Peter Larsen |
#48
Posted to rec.audio.pro
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1st Project Lessons Learned--So Far
четвртак, 30. април 2015. 01.33.52 UTC+2, Peter Larsen је написао/ла:
Is all resolved? Kind regards Peter Larsen Sure, no problem. I'm sorry for asking and hope to not have offended you too much. I'd never thought you would say something the way I interpreted it, but once it was in my mind I thought better to have it all straight. |
#49
Posted to rec.audio.pro
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Reverb - was 1st Project Lessons Learned--So Far
On Tue, 28 Apr 2015 21:34:09 -0500, Frank Stearns
wrote: [snip] Would-be jazz players ought to at least study the jazz written by Leonard Bernstein or Dave Brubeck (among others, or even go back and understand some of the early rules of jazz), and even study a few classical composers -- and then develop the chops to play it all well. At that point, after they've understood the fundamentals and have the foundation, future musical noodling might actually have some value, rather than just an excuse to hide a lack of depth, or prop up what is too often just musical slouching or musical bad posture. Sorry to offend any jazz devotees; again, just an opinion. Frank Mobile Audio Frank, I totally agree. After 60 years I've determined that few players really speak to me. I have no idea where some of these abstract jazz players are coming from and don't really care. |
#50
Posted to rec.audio.pro
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1st Project Lessons Learned--So Far
Luxey wrote:
?????, 29. ????? 2015. 18.20.10 UTC+2, Peter Larsen ?? ???????/??: "hank alrich" skrev i en meddelelse ... Not sure this helps but. http://www.mediacollege.com/audio/no...nge-noise.html Thank you Hank, he should be totally confused by now. They don't seem to know how to google. Where can I google for the meaning of above statement?! To avoid any confusion: Provided you were talking about me, I mean, obviously, you continued on Hank's response to my post ... Why would you want me confused and/or why do you think I am? I think the confusion lies not with you at all, but with the information that is presented in the Wiki article. Therefrom I could not come to any conclusion about the makeup of "orange noise", nor see that it was a term agreed upon in the industry. I came away not knowing WTF it is, or what it is supposed to be. Why do you think Hank would want to cunfuse me? I would only do that in humor, and if I succeeded would not let you linger there long! ;-) Why do you think I do not know how to Google? I will take a longshot, and suggest Peter might have carried over a reaction from Facebook participation, where we repeatedly run into situations where partial information is presented, with plenty of clues to get the rest of the story via a search, and someone will ask "Where can I find xxyyzz?" When that happens and I care enough, I'll run a quick search and spoonfeed the thread. Another angle might be that given my kindergarten search term Google was not able to offer much info that I found useful. That's why I prefaced the link with the remark, "Not sure this helps but". I couldn't find anything that made any more sense than that article, from which I left feeling senseless. -- shut up and play your guitar * HankAlrich.Com HankandShaidriMusic.Com YouTube.Com/WalkinayMusic |
#51
Posted to rec.audio.pro
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1st Project Lessons Learned--So Far
Luxey wrote:
????????, 30. ????? 2015. 01.33.52 UTC+2, Peter Larsen ?? ???????/??: Is all resolved? Kind regards Peter Larsen Sure, no problem. I'm sorry for asking and hope to not have offended you too much. I'd never thought you would say something the way I interpreted it, but once it was in my mind I thought better to have it all straight. You are both admirable humans. I thank both of you for that. -- shut up and play your guitar * HankAlrich.Com HankandShaidriMusic.Com YouTube.Com/WalkinayMusic |
#52
Posted to rec.audio.pro
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1st Project Lessons Learned--So Far
Peter Larsen wrote:
Also Hank would have been better off if remembering to google groups.google.com as he was looking for stuff that first appeared on usenet. Yes, I didn't know enough about what I was looking for to find useful info. Hell, even Wikipedia's entry on "Colors of Noise" is useless in this case. http://en.wikipedia.org/wiki/Colors_of_noise I have yet to do anything with Google groups. I just don't think of it. -- shut up and play your guitar * HankAlrich.Com HankandShaidriMusic.Com YouTube.Com/WalkinayMusic |
#53
Posted to rec.audio.pro
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1st Project Lessons Learned--So Far
"Luxey" skrev i en meddelelse
... ????????, 30. ????? 2015. 01.33.52 UTC+2, Peter Larsen ?? ???????/??: Is all resolved? Kind regards Peter Larsen Sure, no problem. I'm sorry for asking and hope to not have offended you too much. I'd never thought you would say something the way I interpreted it, but once it was in my mind I thought better to have it all straight. Luxey, I very glad you asked, thank you. Kind regards Peter Larsen |
#54
Posted to rec.audio.pro
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1st Project Lessons Learned--So Far
Yes, I didn't know enough about what I was looking for to find useful
info. Hell, even Wikipedia's entry on "Colors of Noise" is useless in this case. http://en.wikipedia.org/wiki/Colors_of_noise Perhaps I should edit it ... I have yet to do anything with Google groups. I just don't think of it. You don't have to except for searching. Some of the time just adding newsgroups name to an ordinary google search does it, for instance a search for: Peter Larsen rec.audio.pro works surprisingly well. Kind regards Peter Larsen |
#55
Posted to rec.audio.pro
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1st Project Lessons Learned--So Far
wrote:
I was under the impression that the average spectral density of most music = follows the 75us FM radio de-emphasis curve. It is flat from 20 Hz to abou= t 2.2 kHz and rolls off at 6 dB per octave above 2.2 kHz. And I do find t= hat recordings that violate this on the high side do seem to sound harsh. = This may have been the case at one time, and it may be true of classical music today, but these days a lot of genres have far more top end than this. (Which is why things like NAB equalization, which were selected with the assumption of a similar spectral density, may not be optimal today.) --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
#56
Posted to rec.audio.pro
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1st Project Lessons Learned--So Far
Peter Larsen wrote:
Yes, I didn't know enough about what I was looking for to find useful info. Hell, even Wikipedia's entry on "Colors of Noise" is useless in this case. http://en.wikipedia.org/wiki/Colors_of_noise Perhaps I should edit it ... I have yet to do anything with Google groups. I just don't think of it. You don't have to except for searching. Some of the time just adding newsgroups name to an ordinary google search does it, for instance a search for: Peter Larsen rec.audio.pro works surprisingly well. Kind regards Peter Larsen Thank you, Peter. -- shut up and play your guitar * HankAlrich.Com HankandShaidriMusic.Com YouTube.Com/WalkinayMusic |
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