tag:blogger.com,1999:blog-4781727111866727703.post1489313136496283422..comments2024-03-29T00:15:52.117-07:00Comments on <em>Archimago's Musings</em>: HOW-TO: CD Pre-Emphasis & Using SoX De-Emphasis. (And the decline of physical media with vinyl revenue > CD now.)Archimagohttp://www.blogger.com/profile/08642574001287787545noreply@blogger.comBlogger39125tag:blogger.com,1999:blog-4781727111866727703.post-65234174334204124532023-04-04T21:43:50.038-07:002023-04-04T21:43:50.038-07:00When ripping audio CDs and
dBpoweramp Music Conver...When ripping audio CDs and<br /><a href="https://sofvonda.com/dbpoweramp-music-converter/" rel="nofollow">dBpoweramp Music Converter crack 6/</a>9xcrackhttps://www.blogger.com/profile/07428547221127040249noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-70210126892613033812021-03-29T05:30:47.434-07:002021-03-29T05:30:47.434-07:00The rise of popularity of "streaming" sy...The rise of popularity of "streaming" systems is regrettable. The quality of rips there has a range of problems, including not applied de-emphasis, read errors, deleted pauses, watermark (still), faded or abruptly cut segued transitions, rearranged track order, per-track normalization, loudness war, mixed sources on the same album, transcodes, abysmal artwork. They have rushed to put Jason Petersonhttps://www.blogger.com/profile/06906330245439296262noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-64272508272858308892020-12-22T14:42:03.618-08:002020-12-22T14:42:03.618-08:00Great article. I've just started to rip a bun...Great article. I've just started to rip a bunch of old CDs which EAC reports as having pre emph and your guide on SoX worked a treat, thanks for that.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-80019396866534273092020-11-18T13:39:02.301-08:002020-11-18T13:39:02.301-08:00I wrote an article how to create pre-emphasis Audi...I wrote an article how to create pre-emphasis Audio CD-R https://yamamoto2002.blogspot.com/2020/11/creating-pre-emphasis-audio-cd.htmlyamamoto2002https://www.blogger.com/profile/07632174616130138137noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-11343847344604016802020-11-12T12:58:10.058-08:002020-11-12T12:58:10.058-08:00Damn, good stuff Miguel!
And Yamamoto2002 san, th...Damn, good stuff <em>Miguel</em>!<br /><br />And <em>Yamamoto2002</em> san, that's gotta be the most exhaustive review of pre/de-emphasis design on the Internet with that 27-tap filter and 0.00873dB error from reference! Alas, I'm sure some Audiophile Golden Ear might still hear the difference somewhere on the Internet ;-).<br /><br />Cheers boys...Archimagohttps://www.blogger.com/profile/08642574001287787545noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-36341011580295402782020-11-10T08:34:51.039-08:002020-11-10T08:34:51.039-08:00I designed the de-emphasis filter using the table ...I designed the de-emphasis filter using the table and wrote its design process on my blog https://yamamoto2002.blogspot.com/2020/11/designing-de-emphasis-filter-for-some.htmlyamamoto2002https://www.blogger.com/profile/07632174616130138137noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-85046807159989353512020-10-24T13:31:20.351-07:002020-10-24T13:31:20.351-07:00Wondering if anyone could post a CD with pre-empha...Wondering if anyone could post a CD with pre-emphasis image that I can burn to a disc to check if the appropriate flags get captured by XLD on the mac. I presume a disc image is an exact copy including all info?miguelitohttps://www.blogger.com/profile/06222214034787392191noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-43665777676358607642020-10-16T18:38:02.056-07:002020-10-16T18:38:02.056-07:00ffmpeg has the aemphasis filter which lets you add...ffmpeg has the aemphasis filter which lets you add or remove various types of emphasis including CD & RIAA.<br /><br />https://ffmpeg.org/ffmpeg-filters.html#aemphasisjulian67https://www.blogger.com/profile/07325927579957539098noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-71782994361580766432020-10-14T18:27:43.354-07:002020-10-14T18:27:43.354-07:00Some Brilliant Classics re-issues -- Alfven Sympho...Some Brilliant Classics re-issues -- Alfven Symphonies from Bis, for example -- have the pre-emphasis of the original issues.Davehttps://www.blogger.com/profile/11707633316950698574noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-51015506134550429032020-10-11T15:15:53.085-07:002020-10-11T15:15:53.085-07:00f [kHz] Pre-Emph [dB] xACT deemph [dB] Archigo [dB...f [kHz] Pre-Emph [dB] xACT deemph [dB] Archigo [dB] xACT-Pre-Emph Archi-Pre-Emph Archi-Pre-Emph-2 Theoretical [dB]<br />1 -33.70 -34.00 -32.00 -0.30 1.70 -0.30 -0.37<br />2 -36.80 -38.10 -36.10 -1.30 0.70 -1.30 -1.29<br />3 -39.00 -41.40 -39.40 -2.40 -0.40 -2.40 -2.43<br />4 -35.60 -39.10 -37.10 -3.50 -1.50 -3.50 -3.54<br />5 -42.50 -47.00 -45.00 -4.50 -2.50 -4.50 -4.53<br />6 -36.70 -42.00 miguelitohttps://www.blogger.com/profile/06222214034787392191noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-77636790298384392052020-10-11T15:13:39.434-07:002020-10-11T15:13:39.434-07:00Out of curiosity, I ran MusicScope on the files yo...Out of curiosity, I ran MusicScope on the files you provided (True) as well as one obtained by running xACT on the pre-emphasis file. I get a result close to theoretical with xACT but your deemph file seems to have have been boosted by 2dB - the relative drop between frequencies is the same but your deemph file is "louder" by 2dB.<br /><br />Here are the numbers:<br /><br />/Users/miguelitohttps://www.blogger.com/profile/06222214034787392191noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-5376445709729014062020-10-10T16:04:43.088-07:002020-10-10T16:04:43.088-07:00Wondering if anyone can explain the ins&outs o...Wondering if anyone can explain the ins&outs of ripping on a mac with pre-emphasis detection. <br /><br />XLD indicates it detects pre-emphasis both in the TOC and subcode info, but it is unclear to me what happens after - I presume at least the cue sheet will indicate this, but I wonder if there’s the option of creating an ID3 tag for it. <br /><br />Additionally, I read not all CD drives miguelitohttps://www.blogger.com/profile/06222214034787392191noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-50905291141755451542020-10-10T08:26:57.939-07:002020-10-10T08:26:57.939-07:00I have been using for years 4 Sony DVP NS 755V DV...I have been using for years 4 Sony DVP NS 755V DVD/CD/SACD players from 1993. The first one I bought retail for $300 and the others off EBay for all under $50 each. They are excellent players of all formats and have a 12 bit 108 MHZ video chip which played DVDs great. I also bought a Yamaha S-1800 (also a DVD/CD/SACD player) in 1997 which is a big step up from the Sony players.<br /><br />I Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-47187617298821252502020-10-10T02:12:02.311-07:002020-10-10T02:12:02.311-07:00I wonder if you could make the batch file and plac...I wonder if you could make the batch file and place in on a hard drive, which is connected to an Oppo, and hear the de-emphasis in work like that? I doubt it...Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-1910289052335636562020-10-09T07:17:12.586-07:002020-10-09T07:17:12.586-07:00Interesting about the de-emphasis assumed to be ap...Interesting about the de-emphasis assumed to be applied in the analog domain. The intention was probably to do something similar to Dolby for tape hiss by suppressing high frequencies thereby making brickwall filters a little gentler. <br /><br />In terms of accuracy, both the SoX and the Roon variant below are within 0.06 dB of what is considered to be the spec for pre-emphasis. Given the miguelitohttps://www.blogger.com/profile/06222214034787392191noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-64379855476074125742020-10-09T07:05:34.042-07:002020-10-09T07:05:34.042-07:00Yes, I do think that digital has made great advanc...Yes, I do think that digital has made great advances and one has to look no further that 2496, 24192 and DSD to know that there are very bright people working to make digital the best, like the folks at Benchmark. <br /><br />The have also worked to make it more affordable unlike the LP where everything has risen to rediculous levels and $50K phono stages and the like. If you need a $100K Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-47548497606688376832020-10-08T20:55:16.352-07:002020-10-08T20:55:16.352-07:00Archimago,
Good info on the de-emphasis!
I'v...<br />Archimago,<br /><br />Good info on the de-emphasis!<br /><br />I've always used itunes to rip (no emphasis or normalizing), which I presume is why I've never noticed any problems.<br /><br />BTW, note when the subject of listening to vinyl comes up, when a vinyl-lover mentions also liking digital it's because "Digital has come such a long way" and now sounds "goodVaalhttps://www.blogger.com/profile/14896147903257500224noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-27897308276285916472020-10-08T20:43:59.612-07:002020-10-08T20:43:59.612-07:00"This is to me also part of the irony of audi...<b>"This is to me also part of the irony of audiophilia! On the one hand we have biological mechanisms that can find high levels of enjoyment out of the imperfect (easily objectively demonstrated!)."</b><br /><br />Yes, this is part of the audiophile conundrum. <br /><br />Many audiophiles chase better sound as a way of enjoying music "more." So we spend all sorts of money on Vaalhttps://www.blogger.com/profile/14896147903257500224noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-39557444559029939852020-10-08T14:18:34.997-07:002020-10-08T14:18:34.997-07:00Just want to point out that most reissues do not h...Just want to point out that most reissues do not have the pre-emphasis applied (as far as I can tell!). Spandau Ballet’s “True” being one case. miguelitohttps://www.blogger.com/profile/06222214034787392191noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-41167012262416448802020-10-08T14:06:48.955-07:002020-10-08T14:06:48.955-07:00One thing I like is not having to create new files...One thing I like is not having to create new files, just need to turn on that filter in Roon. Presumably this could be applied to any parametric filter. <br /><br />Also, my theoretical curve is the one from the spreadsheet in your link. miguelitohttps://www.blogger.com/profile/06222214034787392191noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-82456363631468924252020-10-08T14:00:23.912-07:002020-10-08T14:00:23.912-07:00Nice work miguelito! Great seeing the accuracy ver...Nice work <em>miguelito</em>! Great seeing the accuracy verification.<br /><br />This certainly does bring up the question raised by <em>AJ</em> above regarding accuracy of the de-emphasis process.<br /><br />As per the SoX documentation, the <strong>deemph</strong> filter will:<br />http://sox.sourceforge.net/sox.html<br /><br /><em>"Apply Compact Disc (IEC 60908) de-emphasis (a treble Archimagohttps://www.blogger.com/profile/08642574001287787545noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-21154596502843806152020-10-08T13:53:57.470-07:002020-10-08T13:53:57.470-07:00Awesome Bennet,
Thanks for the tip and insight int...Awesome <em>Bennet</em>,<br />Thanks for the tip and insight into the workings of SoX! Great, even more resolution for that ultimate extra bit of resolution from de-emphasis :-).<br />Archimagohttps://www.blogger.com/profile/08642574001287787545noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-78874589418017122562020-10-08T13:50:54.429-07:002020-10-08T13:50:54.429-07:00Wow Jim, shellac eh?
Actually, I have never owned...Wow <em>Jim</em>, shellac eh?<br /><br />Actually, I have never owned any of those 78's (nor to be honest am I all that curious to try any out!). I do have a few 45 singles in my collection including the Beatles box set (original release not the new remasters) given to me by a dear old friend.<br /><br />Indeed:<br /><strong>"IT IS AMAZING THAT THE LP FORMAT SOUNDS AS GREAT AS IT OFTEN Archimagohttps://www.blogger.com/profile/08642574001287787545noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-73453150933931557242020-10-08T13:35:29.607-07:002020-10-08T13:35:29.607-07:00Fantastic Dave,
Excellent code for reference!Fantastic <em>Dave</em>,<br />Excellent code for reference!<br />Archimagohttps://www.blogger.com/profile/08642574001287787545noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-26084403119786038882020-10-08T13:34:35.616-07:002020-10-08T13:34:35.616-07:00Hi AJ,
Yeah, not sure I'd be able to add much ...Hi <em>AJ</em>,<br />Yeah, not sure I'd be able to add much to the exploration of the de-emphasis accuracy. I know over the years this has been part of the test suite for CD players like this recent archive post on <em>Stereophile</em>:<br />https://www.stereophile.com/content/california-audio-labs-tercet-mkiii-cd-player-measurements<br /><br />Looks like the California Audio Labs player Archimagohttps://www.blogger.com/profile/08642574001287787545noreply@blogger.com