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| [#4145] ETSC & ETRC & ESAC Members (44) the noise/tics are indirectional sound wave ------------------------------------------ i must say this is science fiction.^-^ |
drwkng 正式會員210.xxx.xxx.111 |
2007-04-26 12:40 | |
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| [#4146] ETSC & ETRC & ESAC Members (44) "有間'小雲雀'賣夜冷，" 去過去過.... :-) |
lym 正式會員 167.xxx.xxx.10 |
2007-04-26 12:40 |
| [#4147] ETSC & ETRC & ESAC Members (44) science fiction? 咁係 science 定係 fiction? :-p |
lym 正式會員 167.xxx.xxx.10 |
2007-04-26 12:41 |
| [#4148] ETSC & ETRC & ESAC Members (44) 咁係 science 定係 fiction? :-p ---------------------------------------- it is science since it involves a description of a physical behaviour of this time and space. it is fiction since it is not real^-^ |
drwkng 正式會員 210.xxx.xxx.111 |
2007-04-26 13:22 |
| [#4149] ETSC & ETRC & ESAC Members (44) 咁係 science 定係 fiction? :-p --------------------------------------- i've to clarify that it is not a description of the observation just the explanation.^-^ |
drwkng 正式會員 210.xxx.xxx.111 |
2007-04-26 13:25 |
| [#4150] ETSC & ETRC & ESAC Members (44) 咁有無一個唔係 fiction 既 explanation of 個 observation 呢又.... ? :-p |
lym 正式會員 167.xxx.xxx.10 |
2007-04-26 14:13 |
| [#4151] ETSC & ETRC & ESAC Members (44) My dear colleague, "Our office has blocked all outside email (i.e. Yahoo Mail, Hotmal, Gmail, etc.) since April...." XYZ@#$&*! |
天龍之友2號 正式會員 210.xxx.xxx.22 |
2007-04-26 14:25 |
| [#4152] ETSC & ETRC & ESAC Members (44) May I please clarify that surface noises of LP are basically random and they frequently contain out of phase elements alongside the music proper and as such it is not uncommon to find these noises reproduced elsewhere away from the projected sound stage. |
limage 正式會員 220.xxx.xxx.160 |
2007-04-26 14:51 |
| [#4153] ETSC & ETRC & ESAC Members (44) This really a benefit to those hardworking room-coupling students as they can buy some not perfect condition TAS super-disc at a very reasonable price. Such as Witches Brew US$300 for a mint but US$50 for a VG+ copy. |
ilovesonatas 正式會員 210.xxx.xxx.21 |
2007-04-26 16:14 |
| [#4154] ETSC & ETRC & ESAC Members (44) 咁有無一個唔係 fiction 既 explanation of 個 observation 呢又.... ? :-p -------------------------------------------------- this is a tough one. let me try ^-^ now we are talking about pops and clicks generated during the play back of LP. looking at a typical digital output of a LP analogue output, the pops are usually very sharp spikes with possibly some ringing afterwards. and they don't seem to affect both channels at the same time very often. being spikes their duration is rather short. but i have to say the replay chain from amp to speaker does not really know it is noise and not signal. so they will be played back 'equally'. i don't understand ivan's reference of them being 'out of phase'. i'm not aware of any mechanism that will produce such an effect. if the pops are not very frequent, being spikes with very short duration and happen to a channel at a time, i would think the brain will probably be smart enough to ignore them once it gets used to it. but if they get frequent, i think the brain will get confused and lose the spatial cues of the original signal. the soundstage will be affected. my wild guess^-^ |
drwkng 正式會員 218.xxx.xxx.123 |
2007-04-26 19:14 |
| [#4155] ETSC & ETRC & ESAC Members (44) VANGELIS "1492 : CONQUEST OF PARADISE" ORIGINAL SOUNDTRACK Korea pressing 12" LP Cover : NM / Record : NM~Mint (very close to Mint) Ended bid only US$19.50. Is it a dead chicken.  |
ilovesonatas 正式會員 210.xxx.xxx.21 |
2007-04-26 20:06 |
| [#4156] ETSC & ETRC & ESAC Members (44) "i would think the brain will probably be smart enough to ignore them once it gets used to it. but if they get frequent, " I won't exclude that the brain may probably has its work here but from the observation, it seems the noise is not ignored but that it simply as if the noise and the music are heard separately from a different stage. |
lym 正式會員 219.xxx.xxx.50 |
2007-04-26 20:40 |
| [#4157] ETSC & ETRC & ESAC Members (44) oh...thing can get so interesting, be it science or fiction.... |
lym 正式會員 219.xxx.xxx.50 |
2007-04-26 20:41 |
| [#4158] ETSC & ETRC & ESAC Members (44) I won't exclude that the brain may probably has its work here but from the observation, it seems the noise is not ignored but that it simply as if the noise and the music are heard separately from a different stage. ---------------------------------------------------- i don't doubt you hear some effect. i just look at the digital output and comment about the effect. what do you mean by different stage? is it in terms of width, depth or height? i think the duration is too short for you to tell the difference. |
drwkng 正式會員 218.xxx.xxx.123 |
2007-04-26 21:00 |
| [#4159] ETSC & ETRC & ESAC Members (44) "what do you mean by different stage? " According to my memory (mind you that it is poor)... the music is like coming from an image of a space that is surrounding the room with the stage mainly visualized as some distance back from the speakers and the music altogether is coherent. The noise and ticks are heard as not part of that musical stage but rather like a direct burst from the speaker which one can readily notice.... Hope I can really depict what its like... |
lym 正式會員 219.xxx.xxx.50 |
2007-04-26 21:05 |
| [#4160] ETSC & ETRC & ESAC Members (44) Hope I can really depict what its like... (must add that the description is after two big bottles of beer.... kekeke) |
lym 正式會員 219.xxx.xxx.50 |
2007-04-26 21:07 |
| [#4161] ETSC & ETRC & ESAC Members (44) According to my memory (mind you that it is poor)... the music is like coming from an image of a space that is surrounding the room with the stage mainly visualized as some distance back from the speakers and the music altogether is coherent. The noise and ticks are heard as not part of that musical stage but rather like a direct burst from the speaker which one can readily notice.... ------------------------------------------------- you can't really expect that a single pop to destroy your soundstage. being spiky in nature it's duration is very small. i don't think your brain has the ability to differentiate such a short duration of signal in the presence of a continuous music signal. the masking effect will make you believe that the signal is coming from no where and then disappear. in fact i think the original signal is gone but you wouldn't be able to tell though. if you can freeze in time, and listen to your speaker slice by slice time wise, i'm sure you will hear the pop but nothing else for that particular slice in time.^-^ |
drwkng 正式會員 218.xxx.xxx.123 |
2007-04-26 21:27 |
| [#4162] ETSC & ETRC & ESAC Members (44) "you can't really expect that a single pop to destroy your soundstage. being spiky in nature it's duration is very small. " May be I can try a really really "bad" and "noisy" LP with continuous and long standing noise next time and see how it goes... But one thing I can tell is that there is a difference in that feel of separation between the old speakers placement and the new (pushed forward) one. I really appreciate the time you spent in explaining this doctor... :-) Interesting... |
lym 正式會員 219.xxx.xxx.50 |
2007-04-26 21:37 |
| [#4163] ETSC & ETRC & ESAC Members (44) But one thing I can tell is that there is a difference in that feel of separation between the old speakers placement and the new (pushed forward) one. ---------------------------------------------------- there is a very established acoustic theory to explain your result. if you just look at the variations of signal strength as you move back and forth in your listening position, you will be surprised. these effects are in terms of few to tenths of dbs. and yet we are fooling around with cable that might have 0.001 db effect ^-^ but there is so much you can do with speaker placement and listener positioning. this is where i deviate from ivan's philosophy. |
drwkng 正式會員 218.xxx.xxx.123 |
2007-04-26 21:53 |
| [#4164] ETSC & ETRC & ESAC Members (44) "these effects are in terms of few to tenths of dbs. and yet we are fooling around with cable that might have 0.001 db effect ^-^" O..... that's really worth thinking about.... (since its worth so much $$$$$$) " but there is so much you can do with speaker placement and listener positioning. this is where i deviate from ivan's philosophy. " I read this three times (because i drank three bottles of beer by then), but I am not sure if it is 殊途同歸, 同途殊歸, 殊途殊歸...同途同歸? |
lym 正式會員 219.xxx.xxx.50 |
2007-04-26 22:11 |
