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#1
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Lemme preface this: I am a bonehead when it comes to hardware, and
almost a total idiot when it comes to turntables. The sheer amount of variables (tracking force, alignment, etc.) intimidate me to no end, so please go easy on me...I simply won't understand unless it's put in very newbie language. That said: I recently replaced my cartridge (P-mount) with an Audio Technica cartridge. My old one was damaged, and on a friend's advice I got the AT as a replacement. Now: I'm getting some *major* sibilance/high-frequency problems on some albums, the problem being that I have no idea if they've always been there or if it's this cartridge that's introducing them. The problem shows up most frequently as a kind of sibilance...it isn't, however, just that the "S"es are particularly harsh, but that some instances introduce tons of noise into the signal. The sibilance is very "dirty," in other words, with a burst of distortion often accompanying it. Additionally, certain periods of high-frequency activity often introduce a lot of noise into the signal. Could this problem be cartridge related? Is it fixable? Might my records just be kinda trashed?:-( Thanks, -D |
#2
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David Goodwin wrote:
Lemme preface this: I am a bonehead when it comes to hardware, and almost a total idiot when it comes to turntables. The sheer amount of variables (tracking force, alignment, etc.) intimidate me to no end, so please go easy on me...I simply won't understand unless it's put in very newbie language. That said: I recently replaced my cartridge (P-mount) with an Audio Technica cartridge. My old one was damaged, and on a friend's advice I got the AT as a replacement. Now: I'm getting some *major* sibilance/high-frequency problems on some albums, the problem being that I have no idea if they've always been there or if it's this cartridge that's introducing them. The problem shows up most frequently as a kind of sibilance...it isn't, however, just that the "S"es are particularly harsh, but that some instances introduce tons of noise into the signal. The sibilance is very "dirty," in other words, with a burst of distortion often accompanying it. Additionally, certain periods of high-frequency activity often introduce a lot of noise into the signal. Could this problem be cartridge related? Is it fixable? Might my records just be kinda trashed?:-( Thanks, -D If you are only noticing this type of noise/distortion on certain records in your collection but not with others having somewhat the same type of content, I'd recommend you first consider plain old record dirt as one possible culprit. How have you been cleaning your records, assuming you have? If you've been using only something like a Discwasher system or carbon-fibre brush to clear away surface dust, chances are your records still have enough embedded dirt which can't be seen, but can definitely be heard! I'd suggest you try and find somebody (even a dealer) who has either a record cleaning machine using a liquiid cleaner/vacuum dry combination (e.g. a VPI or Nitty Gritty RCM) or somebody that has access to the Disc Doctor cleaning kit, which includes both brushes and a specially formulated, non-alcohol-based cleaning solution. You can read about the Disc Doctor system at www.discdoc.com, where instructions, prices, etc. are given. If you have a significant number of records, you might want to invest in a kit. The nice thing about this product is that for most records, you only have to clean them once to get maximum benefits. I can tell you from personal experience that the differences in S/N ratio for records cleaned with this product is quite striking in many cases. If cleaning your records doesn't seem to make a difference, I'd then suggest that you take your turntable in to a reputable dealer experienced in turntable/tonearm/cartridge setup and have him check everything out. Bruce J. Richman |
#3
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On Thu, 28 Aug 2003 20:07:32 -0400, in rec.audio.opinion you wrote:
Yes, if it's the hardware. Trying starting with the tracking force at the upper end of the suggested range and see if it's still there. If not, gradually drop the tracking force in small increments until you begin to hear it and then raise the force to just above that threshold. How exactly do I *do* this? I always hear people talking about tracking force, but I have no idea how to adjust it. One other thing you might check for from experience: often a new stylus (especially some of the ATs that dig deep into the groove) will dig out dirt and collect it behind the stylus. It may not be easily visible to the naked eye, but it can certainly have the effect of adding harshness to the sound. Use a magnifying glass and carefully brush out any dirt that may be trapped behind the tip. Will any sort of brush do? For a quick MP3 clip of two sibilance examples, please go to: http://www.lukpac.org/~handmade/sdistort.mp3 and http://www.lukpac.org/~handmade/sample.mp3 All three are from *different* records. I'm really panicking about this...I changed my cartridge because it was damaged, and I spent a lot of money on this one..I don't want to have to replace it again!:-( -D |
#4
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David Goodwin wrote:
On Thu, 28 Aug 2003 20:07:32 -0400, in rec.audio.opinion you wrote: Yes, if it's the hardware. Trying starting with the tracking force at the upper end of the suggested range and see if it's still there. If not, gradually drop the tracking force in small increments until you begin to hear it and then raise the force to just above that threshold. How exactly do I *do* this? I always hear people talking about tracking force, but I have no idea how to adjust it. If you changed cartridges and didn't adjust the tracking force, that is almost certainly your problem. Precisely how it's done varies from turntable to turntable. A stylus gauge will help get it right, since the markings on turntables can be inaccurate. One other thing you might check for from experience: often a new stylus (especially some of the ATs that dig deep into the groove) will dig out dirt and collect it behind the stylus. It may not be easily visible to the naked eye, but it can certainly have the effect of adding harshness to the sound. Use a magnifying glass and carefully brush out any dirt that may be trapped behind the tip. Will any sort of brush do? For a quick MP3 clip of two sibilance examples, please go to: http://www.lukpac.org/~handmade/sdistort.mp3 and http://www.lukpac.org/~handmade/sample.mp3 All three are from *different* records. I'm really panicking about this...I changed my cartridge because it was damaged, and I spent a lot of money on this one..I don't want to have to replace it again!:-( -D |
#5
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![]() "David Goodwin" wrote in message ... On Thu, 28 Aug 2003 20:07:32 -0400, in rec.audio.opinion you wrote: Yes, if it's the hardware. Trying starting with the tracking force at the upper end of the suggested range and see if it's still there. If not, gradually drop the tracking force in small increments until you begin to hear it and then raise the force to just above that threshold. How exactly do I *do* this? I always hear people talking about tracking force, but I have no idea how to adjust it. That's gonna depend on your turntable. Some have knobs, some have adjustment screws. My Dual uses a counterweight at the end of the tonearm that I rotate to adjust the tracking force. The proper procedures will vary depending on your setup. Here's a couple guides that might help... http://www.walkeraudio.com/fine_tuni..._turntable.htm http://www.classicrecs.com/newslette...cfm?Article=57 http://www.amtrakdjs.org/essays/ttsetup.html One other thing you might check for from experience: often a new stylus (especially some of the ATs that dig deep into the groove) will dig out dirt and collect it behind the stylus. It may not be easily visible to the naked eye, but it can certainly have the effect of adding harshness to the sound. Use a magnifying glass and carefully brush out any dirt that may be trapped behind the tip. Will any sort of brush do? Any little brush like a toothbrush should be fine. Just be careful to avoid bending the stylus - you want to brush only the diamond tip of it. For a quick MP3 clip of two sibilance examples, please go to: http://www.lukpac.org/~handmade/sdistort.mp3 and http://www.lukpac.org/~handmade/sample.mp3 All three are from *different* records. Okay, I hear the sibilance, but it's certainly not as bad as I've heard other times. Doesn't sound like a dirty stylus - probably just a bright sounding cartridge that's being run at a low tracking force in combination with a bright pre-amp stage. My guess just from your samples is that a tracking force adjustment will take care of it. I'm really panicking about this...I changed my cartridge because it was damaged, and I spent a lot of money on this one..I don't want to have to replace it again!:-( -D |
#6
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"Shrivel" wrote in message ...
"David Goodwin" wrote in message ... On Thu, 28 Aug 2003 20:07:32 -0400, in rec.audio.opinion you wrote: Yes, if it's the hardware. Trying starting with the tracking force at the upper end of the suggested range and see if it's still there. If not, gradually drop the tracking force in small increments until you begin to hear it and then raise the force to just above that threshold. How exactly do I *do* this? I always hear people talking about tracking force, but I have no idea how to adjust it. That's gonna depend on your turntable. Some have knobs, some have adjustment screws. My Dual uses a counterweight at the end of the tonearm that I rotate to adjust the tracking force. The proper procedures will vary depending on your setup. Here's a couple guides that might help... http://www.walkeraudio.com/fine_tuni..._turntable.htm http://www.classicrecs.com/newslette...cfm?Article=57 http://www.amtrakdjs.org/essays/ttsetup.html One other thing you might check for from experience: often a new stylus (especially some of the ATs that dig deep into the groove) will dig out dirt and collect it behind the stylus. It may not be easily visible to the naked eye, but it can certainly have the effect of adding harshness to the sound. Use a magnifying glass and carefully brush out any dirt that may be trapped behind the tip. Will any sort of brush do? Any little brush like a toothbrush should be fine. Just be careful to avoid bending the stylus - you want to brush only the diamond tip of it. For a quick MP3 clip of two sibilance examples, please go to: http://www.lukpac.org/~handmade/sdistort.mp3 and http://www.lukpac.org/~handmade/sample.mp3 All three are from *different* records. Okay, I hear the sibilance, but it's certainly not as bad as I've heard other times. Doesn't sound like a dirty stylus - probably just a bright sounding cartridge that's being run at a low tracking force in combination with a bright pre-amp stage. My guess just from your samples is that a tracking force adjustment will take care of it. I'm really panicking about this...I changed my cartridge because it was damaged, and I spent a lot of money on this one..I don't want to have to replace it again!:-( -D There are many things that can be tried, checking stylus ange (VTA), tracking force (VTF) and clean the record with liquid and vaccum. The most difficult sibilance record I have is the Cowboy Junkies Sweet Jane (se below). Changing cartridge to the Shure V15VxMR did improve things quite a bit in the high frequencies. The record grooves can be destroyed after misuse with old cartridges, and changing to another type of stylus can sometimes improve high frequencies. http://hem.bredband.net/b113928/sweetjaneSV.wav |
#7
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"David Goodwin" wrote in message
I'm getting some *major* sibilance/high-frequency problems on some albums, the problem being that I have no idea if they've always been there or if it's this cartridge that's introducing them. Kudos on perceiving that it's hard to tell whether an audible change is due to something that was always there but being suppressed getting through, or whether the change is due to the new component manufacturing distorted sounds of its own. Most experienced hands judge these kinds of situations by listening to a range of recordings, and applying logical deduction to their judgments. If the excess sibilance appears only on old recordings, then it is probably correct to blame the recordings. If the excess sibilance shows up on new recordings but primarily at high levels, then the problem is more likely to be with the new cartridge. The problem shows up most frequently as a kind of sibilance...it isn't, however, just that the "S"es are particularly harsh, but that some instances introduce tons of noise into the signal. The sibilance is very "dirty," in other words, with a burst of distortion often accompanying it. If this happens with recordings known to be in good shape, the finger points more directly at the cartridge or how it is set up. Can you increase the tracking force? Is there some chance that despite all the supposed guarantees of proper adjustment inherent in the P-mount system, the cartridge is still misaligned? If the problem is more prevalent at the beginning of the recording, you might want to look at your anti-skating adjustment since the skating force is largest for the outer grooves. Additionally, certain periods of high-frequency activity often introduce a lot of noise into the signal. Sounds like mistracking. Adding stylus force may be a solution. Perchance the stylus has picked up a big wad of dirt and needs to be cleaned? Could this problem be cartridge related? Maybe. Is it fixable? Maybe. One possible fix might be another cartridge. Might my records just be kinda trashed?:-( Probably not all of them, but possibly the ones you like to listen to the most. |
#8
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I don't think anyone forgot it, but the original poster is obviously new to
vinyl and turntables, so he's pretty much going to have to stick to the basics for now. Tweaking things like tracking angle, antiskate and cartridge alignment are royal pains for even the most experienced turntable users. If his turntable is anything like mine (a Dual) setting VTA may not even be possible. Setting the tracking force is an adjustment that can be done by an inexperienced user fairly easily and has the best chance of curing his sibilance problems. "Armand" wrote in message ... Has everyone forgotten tracking angle? This must be tweaked with each individual record or sibilance is one of the major results amongst other anomalies like stage width and depth. The list is quite long actually. In article , says... "David Goodwin" wrote in message I'm getting some *major* sibilance/high-frequency problems on some albums, the problem being that I have no idea if they've always been there or if it's this cartridge that's introducing them. Kudos on perceiving that it's hard to tell whether an audible change is due to something that was always there but being suppressed getting through, or whether the change is due to the new component manufacturing distorted sounds of its own. Most experienced hands judge these kinds of situations by listening to a range of recordings, and applying logical deduction to their judgments. If the excess sibilance appears only on old recordings, then it is probably correct to blame the recordings. If the excess sibilance shows up on new recordings but primarily at high levels, then the problem is more likely to be with the new cartridge. The problem shows up most frequently as a kind of sibilance...it isn't, however, just that the "S"es are particularly harsh, but that some instances introduce tons of noise into the signal. The sibilance is very "dirty," in other words, with a burst of distortion often accompanying it. If this happens with recordings known to be in good shape, the finger points more directly at the cartridge or how it is set up. Can you increase the tracking force? Is there some chance that despite all the supposed guarantees of proper adjustment inherent in the P-mount system, the cartridge is still misaligned? If the problem is more prevalent at the beginning of the recording, you might want to look at your anti-skating adjustment since the skating force is largest for the outer grooves. Additionally, certain periods of high-frequency activity often introduce a lot of noise into the signal. Sounds like mistracking. Adding stylus force may be a solution. Perchance the stylus has picked up a big wad of dirt and needs to be cleaned? Could this problem be cartridge related? Maybe. Is it fixable? Maybe. One possible fix might be another cartridge. Might my records just be kinda trashed?:-( Probably not all of them, but possibly the ones you like to listen to the most. |
#9
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"Armand" wrote in message
Has everyone forgotten tracking angle? This must be tweaked with each individual record or sibilance is one of the major results amongst other anomalies like stage width and depth. The list is quite long actually. VTA has some significance, but it's being vastly overstated here. |
#10
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On Sat, 30 Aug 2003 15:13:14 -0400, "Arny Krueger"
wrote: "Armand" wrote in message Has everyone forgotten tracking angle? This must be tweaked with each individual record or sibilance is one of the major results amongst other anomalies like stage width and depth. The list is quite long actually. VTA has some significance, but it's being vastly overstated here. That depends on the stylus profile. I use an 'old-fashioned' elliptical which is not particularly sensitive to VTA, but the more modern 'line contact' profiles can be badly affected by VTA. -- Stewart Pinkerton | Music is Art - Audio is Engineering |
#11
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"Stewart Pinkerton" wrote in message
On Sat, 30 Aug 2003 15:13:14 -0400, "Arny Krueger" wrote: "Armand" wrote in message Has everyone forgotten tracking angle? This must be tweaked with each individual record or sibilance is one of the major results amongst other anomalies like stage width and depth. The list is quite long actually. VTA has some significance, but it's being vastly overstated here. That depends on the stylus profile. I use an 'old-fashioned' elliptical which is not particularly sensitive to VTA, but the more modern 'line contact' profiles can be badly affected by VTA. More-or-less agreed. That modern line-contact styli are more sensitive to VTA than classic conicals is reflected in the relevant classic AES papers. However, those same papers find a reasonable acceptance range even for line-contact styli. As I recall, it's at least +/- 5 degrees, maybe more like a 15 degree range. There is an optimum point, but performance drops off less than precipitously on either side of it. While missing optimum by a lot can cause audible high frequency IM, sibilance won't necessarily be the audible consequences with every record. |
#13
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On Fri, 29 Aug 2003 09:03:15 -0400, "Arny Krueger"
wrote: Most experienced hands judge these kinds of situations by listening to a range of recordings, and applying logical deduction to their judgments. If the excess sibilance appears only on old recordings, then it is probably correct to blame the recordings. If the excess sibilance shows up on new recordings but primarily at high levels, then the problem is more likely to be with the new cartridge. It seems to show up pretty much everywhere...not on all records all of the time, but on enough variety with enough frequency to bother me, esp. when I *bought* the damn thing to finally transfer stuff over. If this happens with recordings known to be in good shape, the finger points more directly at the cartridge or how it is set up. Can you increase the tracking force? Is there some chance that despite all the supposed guarantees of proper adjustment inherent in the P-mount system, the cartridge is still misaligned? I don't know. I don't have the instructions for the turntable...I never did. It's second-hand. I don't know what this "tracking force" is supposed to look like, or what I'm supposed to do with it. EDUCATE. If the problem is more prevalent at the beginning of the recording, you might want to look at your anti-skating adjustment since the skating force is largest for the outer grooves. Nah, it frequently happens in end-of-siders. Sounds like mistracking. Adding stylus force may be a solution. Perchance the stylus has picked up a big wad of dirt and needs to be cleaned? This doesn't *look* like the case, but then again, I suppose "big" here is very relative. Have you listened to the MP3s? I could throw up a few more. Generally, the signal suddenly has a lot more clicks/pops when lots of high-frequency info is present. Could this problem be cartridge related? Maybe. Is it fixable? Maybe. One possible fix might be another cartridge. Ugh. Might my records just be kinda trashed?:-( Probably not all of them, but possibly the ones you like to listen to the most. Yeah. Thanks, -D |
#14
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#15
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"David Goodwin" wrote in message
On 29 Aug 2003 06:35:17 GMT, (Bruce J. Richman) wrote: Hopefully, you have an instruction manual for whatever turntable you are using. Different brands and models have different ways of adjusting tracking force. One common method is to look for a counterweight on the tonearm at the opposite end from the cartridge and try and adjust that to provide more or less pressure at the cartridge end. So what I'm doing, then, is changing the weight with which the cartridge enters the grooves? How would this affect sibilance? You are changing the weight with which the cartrdige bears down on the grooves. It is important that the cartridge is always exerting a positive force on the groove, so that it will follow the undulations of the groove. There are dynamic forces due to the motion of the stylus as it follows the groove, that then to allow the stylus to pull away from the groove. If the stylus does not accurately follow the undulations of the groove, then there will be distortion. The sibilance you hear may be distortion that is generated by the stylus not following the undulations of the groove. |
#16
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"David Goodwin" wrote in message
On Fri, 29 Aug 2003 09:03:15 -0400, "Arny Krueger" wrote: It seems to show up pretty much everywhere...not on all records all of the time, but on enough variety with enough frequency to bother me, esp. when I *bought* the damn thing to finally transfer stuff over. If this happens with recordings known to be in good shape, the finger points more directly at the cartridge or how it is set up. Can you increase the tracking force? Is there some chance that despite all the supposed guarantees of proper adjustment inherent in the P-mount system, the cartridge is still misaligned? I don't know. I don't have the instructions for the turntable...I never did. It's second-hand. I don't know what this "tracking force" is supposed to look like, or what I'm supposed to do with it. Have I missed something? I can't find out what turntable you have. If the problem is more prevalent at the beginning of the recording, you might want to look at your anti-skating adjustment since the skating force is largest for the outer grooves. Nah, it frequently happens in end-of-siders. A bit of this is present in many vinyl playback systems that are working well - it's an inherent problem with vinyl. I've listened to three of your samples, and they are all have very severe sibilance, much worse than usual. Sounds like mistracking. Adding stylus force may be a solution. Perchance the stylus has picked up a big wad of dirt and needs to be cleaned? This doesn't *look* like the case, but then again, I suppose "big" here is very relative. Big could actually be any. The stylus should be perfectly clean. Have you listened to the MP3s? I could throw up a few more. Generally, the signal suddenly has a lot more clicks/pops when lots of high-frequency info is present. That would be mistracking. When I listened to your samples I noticed that the problem seems to be far worse in the right channel. Could this problem be cartridge related? Maybe. Is it fixable? Maybe. One possible fix might be another cartridge. Ugh. Might my records just be kinda trashed?:-( Probably not all of them, but possibly the ones you like to listen to the most. Yeah. Stylus force is often adjusted by means of a spring or a dial near the pivot point of the tone arm, or by means of adjusting the position of the counterweight. Does your turntable have any adjustments associated with its counterweight? If you try to rotate it, does it rotate? If it rotates, does it move along the length of the tone arm? You can temporarily add tracking force by taping a small object to the top of the cartridge. A dime weighs about 3 grams, the amount of weight you might want to add would be no more than half of that. There are such things as stylus force gauges - Shure makes one that sells for about $20. Depending on the specs for the cartridge you want a tracking force of 1.5-2.5 grams. http://www.lpgear.com/Merchant2/merc...Code=LG&Produc t_Code=SPSFGS Here's some articles about setting up tone arms. Some of the instructions don't apply because you have a P-mount tone arm and cartridge: http://www.audiophilia.com/features/cartridge_setup.htm http://www.geocities.com/Nashville/O...stemsetup.html http://www.avahifi.com/root/audio_ba...pdf/ab1984.pdf (starting around page 30, second column) |
#17
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On Mon, 1 Sep 2003 05:30:23 -0400, "Arny Krueger"
wrote: Have I missed something? I can't find out what turntable you have. Denon DP-7J. Big could actually be any. The stylus should be perfectly clean. I don't see anything, in any case... That would be mistracking. When I listened to your samples I noticed that the problem seems to be far worse in the right channel. I've noticed that too. Why *is* that? My old stylus had a similar problem (its right channel was distorted) and that's why I replaced it...could part of this have carried over thanks to tracking weight errors? Stylus force is often adjusted by means of a spring or a dial near the pivot point of the tone arm, or by means of adjusting the position of the counterweight. Does your turntable have any adjustments associated with its counterweight? If you try to rotate it, does it rotate? If it rotates, does it move along the length of the tone arm? I'll have to investigate this more thoroughly...obviously, I'm kinda squeamish re. changing/adjusting things I'm not sure are supposed to be changed/adjusted. -D |
#18
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Last MP3 I'll bother y'all with:
http://www.lukpac.org/~handmade/highfreq.mp3 Demonstrates how the signal suddenly gets *very* noisy during bouts of high frequency information, and then immediately drops off. I really should've just left this to the pros...:_( This is clearly beyond the adjustophobe user. -D |
#19
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On Mon, 01 Sep 2003 17:22:38 GMT, David Goodwin
wrote: On Mon, 1 Sep 2003 05:30:23 -0400, "Arny Krueger" wrote: Have I missed something? I can't find out what turntable you have. Denon DP-7J. Big could actually be any. The stylus should be perfectly clean. I don't see anything, in any case... That would be mistracking. When I listened to your samples I noticed that the problem seems to be far worse in the right channel. I've noticed that too. Why *is* that? My old stylus had a similar problem (its right channel was distorted) and that's why I replaced it...could part of this have carried over thanks to tracking weight errors? Sounds like the anti-skating force is badly wrong. Excessive treble distortion at the inner grooves is, regrettably, only be expected with vinyl. -- Stewart Pinkerton | Music is Art - Audio is Engineering |
#21
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"dave weil" wrote in message
On Mon, 01 Sep 2003 17:59:31 GMT, (Stewart Pinkerton) wrote: On Mon, 01 Sep 2003 17:22:38 GMT, David Goodwin wrote: On Mon, 1 Sep 2003 05:30:23 -0400, "Arny Krueger" wrote: Have I missed something? I can't find out what turntable you have. Denon DP-7J. I can't find any references to this turntable with google searching. What am I missing? Big could actually be any. The stylus should be perfectly clean. I don't see anything, in any case... Good. That would be mistracking. When I listened to your samples I noticed that the problem seems to be far worse in the right channel. I've noticed that too. Why *is* that? It can be inherent in the media under some conditions, but it is also indictative of excess friction in the arm, misadjusted anti-skating, and too-low tracking force. My old stylus had a similar problem (its right channel was distorted) and that's why I replaced it...could part of this have carried over thanks to tracking weight errors? Could be, but see other related problems I just mentioned. Sounds like the anti-skating force is badly wrong. A possible explanation. I wouldn't be too self-conscious about trying various adjustments to your tone arm. That's one reason why vinyl was scrapped by 99+% of everybody - it was a steady maintenance headache. Adjustments like these can get put out of shape by shipping, for example. Excessive treble distortion at the inner grooves is, regrettably, only be expected with vinyl. Since vinyl the only format with "grooves", I would expect this to be a true statement. It's an absolute certainty that LPs have inherent problems with inner groove distortion, but it's not clear that LPs are the only format with grooves. http://www.pcworld.com/howto/article/0,aid,14571,00.asp However, there's not much point to such a statement, as stated. Wow, you really ARE in denial about the technical failings of vinyl, aren't you Weil? LOL! |
#22
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On Mon, 1 Sep 2003 21:37:39 -0400, "Arny Krueger"
wrote: I can't find any references to this turntable with google searching. What am I missing? Pardon...it's a DP-7F, *not* 7J. It can be inherent in the media under some conditions, but it is also indictative of excess friction in the arm, misadjusted anti-skating, and too-low tracking force. My old cartridge had a problem with raised noise levels in the right channel...thing is, I didn't use the cartridge for long, so I don't think I could've damaged any vinyl in the interim. I wouldn't be too self-conscious about trying various adjustments to your tone arm. That's one reason why vinyl was scrapped by 99+% of everybody - it was a steady maintenance headache. Adjustments like these can get put out of shape by shipping, for example. Heh. Somewhat ironically, I'm spazzing about all of this to get stuff *off* of vinyl...transferring lots of my old mono albums to CD, et cetera. All of these problems are really putting a damper on the process. -D |
#23
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On Mon, 01 Sep 2003 13:48:23 -0500, dave weil
wrote: On Mon, 01 Sep 2003 17:59:31 GMT, (Stewart Pinkerton) wrote: On Mon, 01 Sep 2003 17:22:38 GMT, David Goodwin wrote: On Mon, 1 Sep 2003 05:30:23 -0400, "Arny Krueger" That would be mistracking. When I listened to your samples I noticed that the problem seems to be far worse in the right channel. I've noticed that too. Why *is* that? My old stylus had a similar problem (its right channel was distorted) and that's why I replaced it...could part of this have carried over thanks to tracking weight errors? Sounds like the anti-skating force is badly wrong. And the tracking weight may also be set too low. Excessive treble distortion at the inner grooves is, regrettably, only be expected with vinyl. Since vinyl the only format with "grooves", I would expect this to be a true statement. However, there's not much point to such a statement, as stated. Certainly there is, if the original poster thinks that there's something wrong with his turntable. In fact, he's just hearing a basic defect of the medium. BTW, vinyl is not the only medium with 'grooves', but it's a CAV medium, whereas CD is CLV and hence has a constant data rate. -- Stewart Pinkerton | Music is Art - Audio is Engineering |
#24
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On Tue, 02 Sep 2003 02:04:23 GMT, David Goodwin
wrote: My old cartridge had a problem with raised noise levels in the right channel... As others have said, imbalance in distortion levels between channels is usually due to incorrect anti-skating setting. Or possibly a cartridge that is not perpendicular to the record surface. thing is, I didn't use the cartridge for long, so I don't think I could've damaged any vinyl in the interim. Unfortunately this isn't so. Playing a vinyl record with a badly mistracking turntable JUST ONCE can cause permanent damage. I had a listen to your highfrequency MP3, and it sounds to me like one of: (a) mistracking, (b) faithful playback of a record previously damaged by mistracking, or (c) a record which just has pretty nasty distortion pressed in. You need to get your turntable properly aligned right now. Stop playing records with it until you know it's correctly adjusted, otherwise you are in danger of causing more damage. Once it is set up properly, you can then hope that the distortion you have been hearing is of type (a), and that you haven't caused too much damage. If the distortion is of type (b) or (c), the bad news is that I don't know of any way to successfully remove this type of distortion. The only methods I've tried that had partial success a (i) a savage low pass filter to remove the high frequencies (where most mistracking distortion has its major components) plus a lift in the midrange to compensate; (ii) some audio restoration programs' decrackling can help in some cases. |
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On Tue, 02 Sep 2003 06:56:00 GMT, (Stewart
Pinkerton) wrote: On Mon, 01 Sep 2003 13:48:23 -0500, dave weil wrote: On Mon, 01 Sep 2003 17:59:31 GMT, (Stewart Pinkerton) wrote: On Mon, 01 Sep 2003 17:22:38 GMT, David Goodwin wrote: On Mon, 1 Sep 2003 05:30:23 -0400, "Arny Krueger" That would be mistracking. When I listened to your samples I noticed that the problem seems to be far worse in the right channel. I've noticed that too. Why *is* that? My old stylus had a similar problem (its right channel was distorted) and that's why I replaced it...could part of this have carried over thanks to tracking weight errors? Sounds like the anti-skating force is badly wrong. And the tracking weight may also be set too low. Excessive treble distortion at the inner grooves is, regrettably, only be expected with vinyl. Since vinyl the only format with "grooves", I would expect this to be a true statement. However, there's not much point to such a statement, as stated. Certainly there is, if the original poster thinks that there's something wrong with his turntable. In fact, he's just hearing a basic defect of the medium. Not true at all. My turntable doesn't have audible inner groove sibilance. And I'll bet that yours doesn't either. BTW, vinyl is not the only medium with 'grooves', but it's a CAV medium, whereas CD is CLV and hence has a constant data rate. A series of pits isn't a groove. Look it up if you don't believe me. |
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David Goodwin wrote in message . ..
On Mon, 1 Sep 2003 21:37:39 -0400, "Arny Krueger" wrote: I can't find any references to this turntable with google searching. What am I missing? Pardon...it's a DP-7F, *not* 7J. It can be inherent in the media under some conditions, but it is also indictative of excess friction in the arm, misadjusted anti-skating, and too-low tracking force. My old cartridge had a problem with raised noise levels in the right channel...thing is, I didn't use the cartridge for long, so I don't think I could've damaged any vinyl in the interim. I wouldn't be too self-conscious about trying various adjustments to your tone arm. That's one reason why vinyl was scrapped by 99+% of everybody - it was a steady maintenance headache. Adjustments like these can get put out of shape by shipping, for example. Heh. Somewhat ironically, I'm spazzing about all of this to get stuff *off* of vinyl...transferring lots of my old mono albums to CD, et cetera. All of these problems are really putting a damper on the process. I looked at the waveform of the sibilant high frequency content. The waveform signal is clipped on the bottom for the left channel and at the top for the right channel. The right channel (inner groove) appear most clipped. It can mean many things but try adjusting tracking force and then antiskate as a first cure. The Denon DP-7F appears to be a directdrive with an automatic arm. I made a search of this TT at the vinyl forum at audioasylum and I did not get a clearcut answer of how to set the tracking force. From a picture of the table I saw on the net, http://www.19art.net/music/lp/Turntable08.htm I could not really see how to set the tracking force. One mail noted that there were three different weights supplied with the TT, not mounted. Perhaps it is better to seek advice at the audioasylum of how to set the tracking force of your specific TT. -D |
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On Tue, 02 Sep 2003 08:55:27 -0500, dave weil
wrote: On Tue, 02 Sep 2003 06:56:00 GMT, (Stewart Pinkerton) wrote: On Mon, 01 Sep 2003 13:48:23 -0500, dave weil wrote: On Mon, 01 Sep 2003 17:59:31 GMT, (Stewart Pinkerton) wrote: On Mon, 01 Sep 2003 17:22:38 GMT, David Goodwin wrote: On Mon, 1 Sep 2003 05:30:23 -0400, "Arny Krueger" That would be mistracking. When I listened to your samples I noticed that the problem seems to be far worse in the right channel. I've noticed that too. Why *is* that? My old stylus had a similar problem (its right channel was distorted) and that's why I replaced it...could part of this have carried over thanks to tracking weight errors? Sounds like the anti-skating force is badly wrong. And the tracking weight may also be set too low. Excessive treble distortion at the inner grooves is, regrettably, only be expected with vinyl. Since vinyl the only format with "grooves", I would expect this to be a true statement. However, there's not much point to such a statement, as stated. Certainly there is, if the original poster thinks that there's something wrong with his turntable. In fact, he's just hearing a basic defect of the medium. Not true at all. My turntable doesn't have audible inner groove sibilance. And I'll bet that yours doesn't either. Of course yours does, you're just in denial. BTW, vinyl is not the only medium with 'grooves', but it's a CAV medium, whereas CD is CLV and hence has a constant data rate. A series of pits isn't a groove. Look it up if you don't believe me. The basic fact remains that CLV media have constant data rates, and CAV media like LPs don't. The Edison cylinder at least got *that* right! :-) -- Stewart Pinkerton | Music is Art - Audio is Engineering |
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#29
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"David Goodwin" wrote in message
On Mon, 1 Sep 2003 05:30:23 -0400, "Arny Krueger" wrote: Have I missed something? I can't find out what turntable you have. Denon DP-7J. Big could actually be any. The stylus should be perfectly clean. I don't see anything, in any case... That would be mistracking. When I listened to your samples I noticed that the problem seems to be far worse in the right channel. I've noticed that too. Why *is* that? My old stylus had a similar problem (its right channel was distorted) and that's why I replaced it...could part of this have carried over thanks to tracking weight errors? Stylus force is often adjusted by means of a spring or a dial near the pivot point of the tone arm, or by means of adjusting the position of the counterweight. Does your turntable have any adjustments associated with its counterweight? If you try to rotate it, does it rotate? If it rotates, does it move along the length of the tone arm? I'll have to investigate this more thoroughly...obviously, I'm kinda squeamish re. changing/adjusting things I'm not sure are supposed to be changed/adjusted. Things like tracking force and anti-skating are usually designed to be changed. |
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