tag:blogger.com,1999:blog-4781727111866727703.post28768950158503190..comments2024-03-28T00:31:13.472-07:00Comments on <em>Archimago's Musings</em>: MUSINGS: Digital Interpolation Filters and Ringing (plus other Nyquist discussions and "proof" of High-Resolution Audio audibility)Archimagohttp://www.blogger.com/profile/08642574001287787545noreply@blogger.comBlogger58125tag:blogger.com,1999:blog-4781727111866727703.post-48934858351445387472018-03-27T14:50:20.822-07:002018-03-27T14:50:20.822-07:00I have been in the tinnitus community for a while ...I have been in the tinnitus community for a while now and I have experience what you are going though with tinnitus , I do know people that have got<br />tinnitus from having their implants done. Ringing in the ear after an implant can go away on its own, but that is BS of what the mouth and jaw specialist said. I have definitely seen and heard of a connection between tinnitus and teeth and mouthLeonardo DiCapriohttps://www.blogger.com/profile/02592265814713679138noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-82315398447053841692017-10-30T10:33:08.093-07:002017-10-30T10:33:08.093-07:00pelmazo: Where in the world did you see/read thes...pelmazo: Where in the world did you see/read these 'perceptual studies' ? Reference that if you will. You must. <br /><br />You stated: " ..it seemed to be quite clear from the perceptual studies that were available, that a bandwidth up to 20 kHz was already generous and offered considerable margin."<br /><br />Would those perceptual studies)be from the 1940's (or earlier)?allhifihttps://www.blogger.com/profile/04466682668390818350noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-40859420577816648442017-10-30T10:10:49.571-07:002017-10-30T10:10:49.571-07:00pelmazo: Excellent historic account.
pjpelmazo: Excellent historic account.<br /><br />pjallhifihttps://www.blogger.com/profile/04466682668390818350noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-85871725503343251492017-10-30T10:07:20.086-07:002017-10-30T10:07:20.086-07:00Another example that there are factors unknown tha...Another example that there are factors unknown that account for what we continuously and clearly hear/experience -with respect to sound quality observations. <br /><br />pjallhifihttps://www.blogger.com/profile/04466682668390818350noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-49033467590113508182017-10-30T09:43:33.565-07:002017-10-30T09:43:33.565-07:00Ammar: You're brilliant ! Hmmm ...
pjAmmar: You're brilliant ! Hmmm ...<br /><br />pjallhifihttps://www.blogger.com/profile/04466682668390818350noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-41525503452401592892017-10-30T09:39:35.913-07:002017-10-30T09:39:35.913-07:00Archimago: I forgot to "reference" more ...Archimago: I forgot to "reference" more of your statement -the purpose of copying/pasting as I did in my previous reply. <br /><br />Namely:<br /><br />"There seems to be this belief out there that digital filters somehow play a huge role in the sound and that somehow it needs to be specially tuned by the "gurus"..."<br /><br />I'm not sure who you are referring allhifihttps://www.blogger.com/profile/04466682668390818350noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-77451837233412351402017-10-30T01:47:58.097-07:002017-10-30T01:47:58.097-07:00Archimago: Your arguments are passionate, and come...Archimago: Your arguments are passionate, and come across as far more emotional than professional. <br /><br />Here are some examples;<br /><br />"3. Empirical evidence is lacking. Talk is cheap and testimony is legion, including folks like the fellow quoted above by Whackamus, from Bob Stuart, and audiophile folk heroes like John Swenson. There seems to be this belief out there that digitalallhifihttps://www.blogger.com/profile/04466682668390818350noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-13358818042696397302017-05-05T19:33:07.989-07:002017-05-05T19:33:07.989-07:00This comment has been removed by the author.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-91911705121214216382017-03-14T16:44:55.626-07:002017-03-14T16:44:55.626-07:00Strangely it is PCM not DSD - Sound Studio (£30) i...Strangely it is PCM not DSD - Sound Studio (£30) is the only software I know that will go that high! <br />However I've now discovered that EasyDSD will convert a 192k PCM file to DSD256 and then using Ponophile (from the same company) I can convert it back to 384k which is finally Resampled to 48k in iZotope RX. It is even better - the 2.88Mhz PCM Upsampling gave a kind of ringing(?) despiteDanzy Joneshttps://www.blogger.com/profile/14188831030132268286noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-55665482524671507012017-03-12T16:56:58.067-07:002017-03-12T16:56:58.067-07:00Hi Danzy,
Interesting comment. Not sure I can answ...Hi Danzy,<br />Interesting comment. Not sure I can answer fully since I don't have Sound Studio. What ADC are you using? A samplerate of 2.8MHz or so suggests you're recording at DSD64 format rather than PCM; basically 2.8MHz x 1bit.<br /><br />As you've already seen, even a pro package like iZotope doesn't like >960kHz samplerates in PCM, so 2.8MHz would be very odd for 16/24/Archimagohttps://www.blogger.com/profile/08642574001287787545noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-27609259309008832132017-03-12T14:23:45.369-07:002017-03-12T14:23:45.369-07:00Hi
This is probably off topic but related? I'm...Hi<br />This is probably off topic but related? I'm trying to understand some of the concepts discussed here and finding your blog very helpful.<br />I have a question (if you have the time or inclination!) -<br />I digitize my Vinyl and use Sound Studio (a cheap but excellent App) on the Mac. Unlike any other software I know I can record upto 2.88Mhz (!) from a 192khz/32 feed. This is Danzy Joneshttps://www.blogger.com/profile/14188831030132268286noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-25575179617650452402016-07-19T15:12:49.357-07:002016-07-19T15:12:49.357-07:00THe negative criticism of M&M struck me as ver...THe negative criticism of M&M struck me as very much post-hoc goalpost shifting, because certainly the many rave reviews of the *sound* of DSD and hi rez PCM , specifically touting the formats as being responsible for the better sound, did not depend on the source of the recording. I was gobsmacked to see Reiss (2016) make uncritical reference to the even newer audiophile idea that SACD *StevenShttps://www.blogger.com/profile/08457350132948312910noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-73557141358736019202016-07-19T14:51:52.305-07:002016-07-19T14:51:52.305-07:00Always amazing when 70+ year old hearing males usi...Always amazing when 70+ year old hearing males using speakers with response that plummets above 20k and would explode way before >16bit dynamic range, can clearly hear the benefits of Hi-Re$ higher sample rates and greater word length. Must be that dreaded "time smear" that Reiss mistakenly called "unknown reasons" from the data mining.<br />Now if they could just say AJ Soundfieldhttps://www.blogger.com/profile/17298758277589774795noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-49636139103798491562016-07-17T08:42:14.402-07:002016-07-17T08:42:14.402-07:00Yes, OK. Good to have 48 kHz standard, since at th...Yes, OK. Good to have 48 kHz standard, since at this SR we are really very close if not at the peak of what can be digitally recorded properly. As I wrote I would be happy if th records are sold also (not only) in this container (24/48), of course with minimal price increase. This could put and end to endless hi-res crawling on one side and CD defending at the other side. Both is an effort that Honzahttps://www.blogger.com/profile/11646891459531628990noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-56855335542052041232016-07-17T01:57:25.390-07:002016-07-17T01:57:25.390-07:00The choice of 44.1 kHz precedes the CD by several ...The choice of 44.1 kHz precedes the CD by several years. It indeed was motivated by the attempt to record digital audio on analog video tapes. Some may remember that such systems appeared on the market in the second half of the 1970s. Sony was at the forefront, but not the only manufacturer involved. Systems for both the professional market and the high-end consumer market became available, and pelmazohttps://www.blogger.com/profile/11323582619526317230noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-29597312032254746032016-07-16T13:54:42.274-07:002016-07-16T13:54:42.274-07:00Great discussion guys!
When looking at research, ...Great discussion guys!<br /><br />When looking at research, I think it's always good considering the question that they're trying to answer. I agree that the negative criticisms of Meyer & Moran are reasonable in that they did not analyze each DVD-A/SACD used to ensure an actual hi-res recording. But at the same time, that paper showed us that in the "naturalistic" setting Archimagohttps://www.blogger.com/profile/08642574001287787545noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-37425509361258274532016-07-16T11:31:48.086-07:002016-07-16T11:31:48.086-07:00Right Honza.
The choice of 44.1kHz by Sony (mainl...Right Honza.<br /><br />The choice of 44.1kHz by Sony (mainly) likely had to do with the specifications for analogue video as digital transport back in the day; a sample rate that could be handled by the tapes and reasonably divisable for both NTSC/PAL with different active lines and field rates (as per the wiki: https://en.wikipedia.org/wiki/44,100_Hz). It is a good thing that Sony won out and Archimagohttps://www.blogger.com/profile/08642574001287787545noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-10121038809408292972016-07-16T11:04:30.665-07:002016-07-16T11:04:30.665-07:00Love the perspective Fitzcaraldo2015... A true rea...Love the perspective Fitzcaraldo2015... A true realist :-).<br /><br />I as well share that general sentiment. Research scientists don't get too many opportunities to have their 15 minutes of fame so to be quoted in various news sources and having one's name out there certainly promotes the career, the university, and the AES as contributing to academic progress... Good for them and the Archimagohttps://www.blogger.com/profile/08642574001287787545noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-19112857193079916942016-07-16T09:55:34.592-07:002016-07-16T09:55:34.592-07:00Thanks for the detailed comment Pelmazo. Absolutel...Thanks for the detailed comment Pelmazo. Absolutely agree especially about the point about the fact that the digital data being just a stream of numbers. This was of course my intent in starting with the impulse response listed as 0, 0, 0, +32767, 0, 0...<br /><br />We are such visual creatures!Archimagohttps://www.blogger.com/profile/08642574001287787545noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-45214113515087728922016-07-14T23:51:17.445-07:002016-07-14T23:51:17.445-07:00And moreover, I am not perfectionist in the sense ...And moreover, I am not perfectionist in the sense of striving for 192 kHz, DSD or other overkills for consumer use. But I think that e.g. 24/48 distribution format could be a welcome addition to CD (redbook) physical medium. Honzahttps://www.blogger.com/profile/08793049319792036050noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-90616844570232329652016-07-14T23:49:32.561-07:002016-07-14T23:49:32.561-07:00If those DACs like the realtek ones filter 44.1 kH...If those DACs like the realtek ones filter 44.1 kHz starting at 19-20 kHz range and slow-roll off, then I think that they could play it better and they do that at 48 kHz, where the roll of starts at about 22 kHz. Also when the native clock rate is used it is better (although probably common CD players have 44.1 master clock since they do not have to support anything else).Honzahttps://www.blogger.com/profile/08793049319792036050noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-58528931879234917362016-07-13T15:14:57.438-07:002016-07-13T15:14:57.438-07:00The claims that Redbook's not good enough -- c...The claims that Redbook's not good enough -- claims being made for decades now -- *are not* traditionally coming from people comparing PC motherboard DACs to hi-rez players. That's a comparatively recent iteration of the old claim. Name me some common mass-market CD player models whose DACs 'do not play 44.1 kHz as well as they could'. <br /><br />Nor have you demonstrated StevenShttps://www.blogger.com/profile/08457350132948312910noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-86699163114778916082016-07-12T00:04:20.968-07:002016-07-12T00:04:20.968-07:00Ane one more thing about perceptual testing. While...Ane one more thing about perceptual testing. While it is very important for evaluation, we have to think carefully about it. Imagine e.g. if the CD standard would have been set at 15/42 kHz (not impossible). Would you think that perceptual tests would lead us to adopt e.g. 24/48 container when it became generally available ? I do not think so, we would have a lot of studies telling us that it is Honzahttps://www.blogger.com/profile/08793049319792036050noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-85509482018535546792016-07-11T01:48:19.707-07:002016-07-11T01:48:19.707-07:00Yes it is true that in principle 16/44.1 is OK, al...Yes it is true that in principle 16/44.1 is OK, also perceptually. But we have to remember tha Nyquist theorem is a theoretical principle, working with ideal filtering, devices etc. Yes it is possible to construct a playback device that works nearly perfect with 44.1 and some better CD players are an example of that. But in reality 48 or 96 kHz filtering often works better. So the primary Honzahttps://www.blogger.com/profile/08793049319792036050noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-80213760353221178622016-07-11T01:35:03.586-07:002016-07-11T01:35:03.586-07:00datasheet here http://www.hardwaresecrets.com/data...datasheet here http://www.hardwaresecrets.com/datasheets/ALC892-CG_DataSheet_1.3.pdfHonzahttps://www.blogger.com/profile/08793049319792036050noreply@blogger.com