Kuja Posted January 9, 2010 Report Share Posted January 9, 2010 Hi,I just stumbled upon this...Judging from a very poor Google translation, it seems that this interview could be VERY interesting to AR 9 and 90 owners/fans :I loaded images in Acrobat, used OCR and pasted the result in Google translate.Unfortunately, the translation is far from perfect... Are there any Italian speaking members who could help?Please? This is the result I got from using Acrobat OCR and Google Translate: meeting with -- . ~ . of RenaloGi ,,,,,,,"; tim holl During a recent visit to our headquarters in Massachusetts and planting in the AR riuolto have some questions to Tim Hall director team of engineers who developed the project speakers. Vertica / s •. Young peo-known AR 9 and AR 90, and the new models AR 91 and AR 92, which is unprecedented for readers SOUND. The following is the complete translation of record of the interview with Tim Hall. SOUND; Moller of Briid & - Kjaer proposed an easing. optimal ~ T impia.nro Hi-Fi domes.tici • 1! ' the rrsposta In frequenz.a mlsurabl1e in ~ i '~ i ~ ~ ~ ~ ~~~~~ oe jdj'o ~: ~ r ~ f: no;]. l ~ 1 / 2 inch. • The Bower5 & - Wilkins has shown in his trattaz.ione he wanted adopt this trend for Its DM-6. What response curve measured with the system indicated is considered ol / imal from AR? Hall; We have made a much of the work of development new speakers in our calibrated listening room. In these conditions the absorption of the Room medium and high frequencies is such to cause a roll-off.'s curo response is very similar to that She showed me that we have no tried to compensate in any How this trend trying make flat response because we that if for example a violin playing in st3nz3 in slessa p0sizione occupied by the diffuser pro. goes its emission would undergo a natural absorption of the same type and nobody would think to enhance the high frequencies to make it "flat •. But when we had to decide the response at low frequencies, we tried to eliminate influences of the room as the hole causal reflection from pavimenlO and the back wall, possible holes of interference and so on. But the general trend of the curve not necessarily remain the same in any environment ascollo, rimpcntante is likely also keep changing in a some should be measured the position of boxes and the 'listener in slesso environment listening. For example, our listening room due to a trend decreasing slightly more than showed me, this is ima room that can be considered a cross between an environment the average property and an environment • Dead .. (soft absorbent). 236 Q: The AR-90 built for the stole funziollare leaning against the wall frame dl pWltO listening to, if ql! esta installation not possible and speakers should be at the mu lOlltanate · ro (albeit accettalldo of falling ilel problem of reflection and re / ativa localiuata attenuation of the response) How should you act on riequUibrare issue since the frequent low result in this case particularly alleviated? Si de · ve act on checking for / fllSore mitigating also the rest of range? A: If you must use the AR-90 away from the wall the best system to make a correction, at least as shown by our measurements, is probably to use the bass control of the amplifier. The reason is that when leaves the chest wall is obtained from an attenuation gradual response decrease de: t the frequency, which begins from approximately 500 Hz, this trend is very similar to that: it can be caused or corrected by a normal d control the tone with frequency _ of turnover. of 1000 Hz, then best fix is to gradually a tone control. Also When we move the cash avvidnandola a side wall are that the response becomes a trend in exaltation that begins in the area between 500 and 1000 Hz and therefore can be corrected very well with a tone control, no probabilmennte get a fix • exact .. but it is a good compromise. D., What is the function of controls _ · mid-level low. mid.high. and high .., present on the box? A: First I have to d ire that Our _Marketing Department .. us said it is very diffidle sell speakers unchecked, so we so we mounted controls as the sales office has asked us, but in the case of HR 9 and 90 they help really on calibration for different listening environments, and there are indeed rooms furnished with rif1ettenli, and other absorbent dfetto is a variation of the response in mid-range and medium and high, with controls i: I? ossibility: varying trends of I "in a very RESPONSES complex with the controls on cash and always get a good fair. book, but I do not think we can Chorus stand for a variation of the response at low frequencies with controls because they act continuously on a whole range; For example, the control of the midrange bass acts in the way s weave across range from 200 to 1000 Hz less three that you could want is its action as that of bass control amplifier, is gradual, the controls of cash are implemented with resistors to scale ' you three dB. E 'adjustment rather' brutal but we have seen that many people prefer to listen with controls midrange and at twccter · tenuate of three dB, especially in environments little towel, I personally use the AR-9 and Flat position: I act for the changes that I want with tone controls, but usually we must correct response to our room to listen · to the AR, in which everything is then pesto linear. D. And I think that the controls of cash possallo also help to adjust the response depending on varlicolare mllSica a type of recording technique wilizzara? A: Yes and no, if you speak the pure response Frequency Probab ilmente no, but if you speak of sound and long ter_ mine the person who buys the fund may prefer, this is the best system to follow. Q: What do you think of your speakers Iradizionali? There are a number of speakers ran ~ • Non-traditional ..! Q: omnidireziotlali and us refer to those at ri / profession. A: OK. take the concept. Direct Reflecling .. developed by Bosc, who was the initiator and probably remains the best in this SOUND · N. 65 - September 1979.certainly valid approach provides you number of experiences-Ascoli G9 ~ n ~ ~ ~ ~ ri ~ t ~ ~ ~ ~ ~ irl aii. p ~ t :~~~~~ ple with certain installations of speakers we obtain an extension of camo little noise is a very nice, I would ask if it is a feeling "accurate", but is certain · mind a feeling like a bad · ta people. Ouando is required scn · sation accurate as the perception stereo which incorporates life rea · le, then I believe that such a system speaker is not the answer. Again, if we put a speaker HR in the reverberant room and we put the microphone in front of it, we can see that the field direct is still relevant and if we rotate the center speaker mode to heal. give the bread opposite dc '! Microphone lh'ello lle to the high-frequency mo lto (say, above the 10 kHz) drops significantly; this because ncssu · na r ivcrberante room is perfectly ta on entire audio range. In addition we also have a response that grows a little over 10 kHz · with a very gradual increase; na · ture if you're listening to AR • 9 (or the 90) will receive more energy axis above 10 kHz and not below, with this speaker, but that s i · speaker system is not for necessarily designed to work exactly towards the listener, rather fauo is to be supported in parallel the wall opposite, so listening to an angle of 20-25 degrees or something like that response and flatter, but also frequencies above 10 kHz that differences are probably very difficult to perceive if not unheard · Bili altogether. D. : Heil believes that the development of frequency response is not de · ending for qualitd listening and attaches great imo tance to the modulation frequency which considers respollsabili the altoparlallti traditional. The parameter which he considered more important filli of listening to is "velocird response, which determines the characteristics of the 'first arrivo_. Who attaches great importance to • • Phase _ has philosophical positions " similar. What is the grandezZJl or type of pre · station, if any, Chile considers AR primary importanZJl to obtain the best result of listening? A: I do not think there is some imo bearing parameter in particular; I think there are a series of numbers parameters that are all imponanti. If you take a speaker which has a frequency response This will certainly be very bad Audible, a first approximation a speaker that has peaks or holes the response frcquenza large deep and will not sound as good one that has a regular response; D I'm not talking Affected narrow that may not be heard. So based on my experience I must say that the response Attendance is very important, but we consider a nchc speaker which has a high per. percentage of fifth harmonic distortion and we realize that sounds ter in a way ribile if pa Aragon a speaker that does not have this distortion, we must say COSLA that the distortion is a para · meters important, I still feel that there are parameters that can influence the sound much more others, such as said first Bob (Bob Berkovitz n.d_r.) us Today we can measure virtually all the characteristic parameters of a speaker, but the demand ask is whether when we improve the performance in respect of a certain para · meters with respect to q ow reached until then, s the hyenas October a real advantage audible, or better to spend that money in another How? Pcr example of speaking time arriving Phasc between emissions verses! loparlanti system, we will certainly sem. pre a difference between the arrival times of signals from different speakers, Bob Berkovitz led a search of the very interesting out of high fidelity, but also in field of acoustics and showed that if you listen to a system component. I'm of two speakers with the tweeter 2 or 3 meters away from the woofer hear a delay, but for the distance ze that come into play in speakers Conventional is not the case, also also-if you can get a miglioramellto any results from the shifting slightly over the speakers position chosen for the microphone, This does not apply for other positions; in other words it seems that If you need to spend money on me. g1iorare the performance of a loudspeaker do agree to consider other maggiormcnte significant effects, as reflections from certain Pilrti dci Mobile with some speakers or effects cavities of the border you Loudsp. flocculants, ie directing the expenditures made SODO for things not audible to things that are certainly audible. Not There is no magic ingredient, for as the most important thing AR-9 and it is less common that adopts a sound invention as l '. Acoustic Blanfet "(we seen something similar on other boxes, but these were not factors in red calculate precisely the effect which the desired direction), not and possesses a low response frequcnze particularly extensive, falto not having a provision Vertical speaker, not the that has the woofer close to walls, not the fact that it has one special crossover for low frequencies, but the fact that we together all these things in a integrated project, and I think this The important thing is to listen · exporter. • 231 Link to comment Share on other sites More sharing options...
genek Posted January 9, 2010 Report Share Posted January 9, 2010 Check the library for Tim's original paper published by AR. It should contain all the same technical content as the interview.http://www.classicspeakerpages.net/library...he_ar-9_by_tim/ Link to comment Share on other sites More sharing options...
Kuja Posted January 9, 2010 Author Report Share Posted January 9, 2010 Check the library for Tim's original paper published by AR. It should contain all the same technical content as the interview.http://www.classicspeakerpages.net/library...he_ar-9_by_tim/I'm familiar with the paper from the library.I find this interview completely different, with many interesting and new facts...For example this:Q: What is the function of controls _ · mid-level low. mid.high. and high .., present on the box? A: First I have to say that Our Marketing Department .. us said it is very difficult sell speakers without controls,so we mounted controls as the sales office has asked us, but in the case of AR 9 and 90 they help really on calibration for different listening environments, and there are indeed...It seems that 0db -3db -6db level switches were added by marketing/sales department request, since they felt that speakers without controls were difficult to sell!!! Most of the original white paper is about design principles. It seems that in this interview there there are more "real life situation" questions and answers. More on level switches:...are implemented with resistors to scale ' you three dB. E adjustment rather brutalbut we have seen that many people prefer to listen with controls midrange and at tweeter · attenuate of three dB, especially in environments little towel, I personally use the AR-9 and Flat position: I act for the changes that I want with tone controls, Link to comment Share on other sites More sharing options...
Steve F Posted January 9, 2010 Report Share Posted January 9, 2010 My daughter lives in Italy and is totally fluent. I'll send it to her.She does not speak "audio-ese" however, so she and I may have to go back and forth a few times to get it completely nailed down.Steve F. Link to comment Share on other sites More sharing options...
Kuja Posted January 9, 2010 Author Report Share Posted January 9, 2010 My daughter lives in Italy and is totally fluent. I'll send it to her.She does not speak "audio-ese" however, so she and I may have to go back and forth a few times to get it completely nailed down.Steve F.Great!Thanks! Link to comment Share on other sites More sharing options...
kkantor Posted January 11, 2010 Report Share Posted January 11, 2010 Tim is a brilliant speaker engineer and important mentor to me. But his theory about the audibility of hyenas in October is just wrong.-kHi,I just stumbled upon this...Judging from a very poor Google translation, it seems that this interview could be VERY interesting to AR 9 and 90 owners/fans :I loaded images in Acrobat, used OCR and pasted the result in Google translate.Unfortunately, the translation is far from perfect... Are there any Italian speaking members who could help?Please? This is the result I got from using Acrobat OCR and Google Translate: Link to comment Share on other sites More sharing options...
Steve F Posted January 12, 2010 Report Share Posted January 12, 2010 Here is the translation, courtesy of my daughter. (Word doc)An_interview_with_Tom_Holl_.docVery amusing--she called me from Italy today to tell me she was sending it, and said to me, "You and your friends actually find this stuff INTERESTING?""Yes, we do," I replied.Steve F. Link to comment Share on other sites More sharing options...
Steve F Posted January 12, 2010 Report Share Posted January 12, 2010 Here is the translation, courtesy of my daughter. (Word doc)An_interview_with_Tom_Holl_.docVery amusing--she called me from Italy today to tell me she was sending it, and said to me, "You and your friends actually find this stuff INTERESTING?""Yes, we do," I replied.Steve F.Note--she did a great job translating it, but she misspelled Holl's name as 'Tom' in the doc title instead of 'Tim.' Kind of like throwing a no-hitter for 8 2/3, then giving up an infield hit.Steve F. Link to comment Share on other sites More sharing options...
mocmoon Posted January 13, 2010 Report Share Posted January 13, 2010 Note--she did a great job translating it, but she misspelled Holl's name as 'Tom' in the doc title instead of 'Tim.' Kind of like throwing a no-hitter for 8 2/3, then giving up an infield hit.Steve F.Dear Steve,Thank you and your daughter very much for this. As a proud owner of AR-9, I find it VERY INTERESTING to read and know better the design concept behind this great speaker.Cheers,Viet Anh Link to comment Share on other sites More sharing options...
dingus Posted January 13, 2010 Report Share Posted January 13, 2010 Here is the translation, courtesy of my daughter. (Word doc)An_interview_with_Tom_Holl_.docthe file comes out as gobble-de-gook for me... Link to comment Share on other sites More sharing options...
Rlowe Posted January 13, 2010 Report Share Posted January 13, 2010 the file comes out as gobble-de-gook for me...I had a similar problem, I tried loading it in Word 2002 and it wanted to load mswrd632.wpc but I didn't work.I then loaded it in a copy of Word 2007 (it loaded) and then I saved it as a Word 97-2003 format and printed it to a pdf, for others.Try this copy.I hope this helps!An_interview_with_Tom_Holl_word97_03.docAN_INTERVIEW_WITH_TIM_HOLL.pdf Link to comment Share on other sites More sharing options...
KlausDK Posted January 13, 2010 Report Share Posted January 13, 2010 I had a similar problem, I tried loading it in Word 2002 and it wanted to load mswrd632.wpc but I didn't work.I then loaded it in a copy of Word 2007 (it loaded) and then I saved it as a Word 97-2003 format and printed it to a pdf, for others.Try this copy.I hope this helps!Thanks Richard, that helped a lot.BRgds Klaus Link to comment Share on other sites More sharing options...
dingus Posted January 13, 2010 Report Share Posted January 13, 2010 I had a similar problem, I tried loading it in Word 2002 and it wanted to load mswrd632.wpc but I didn't work.I then loaded it in a copy of Word 2007 (it loaded) and then I saved it as a Word 97-2003 format and printed it to a pdf, for others.Try this copy.I hope this helps!yes that helps completely. thank you very much! Link to comment Share on other sites More sharing options...
Kuja Posted January 19, 2010 Author Report Share Posted January 19, 2010 Steve, thanks a lot for the translation! That was fast! Please say thanks to your daughter. Link to comment Share on other sites More sharing options...
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