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· Headphone additions to May Meeting!!    posted Apr 29, 2013 (show)
  • Bring your cans!
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  • Please note that at the May NJAS meeting at Leon Paboojian's, there will be a separate area set up to demo two exciting new personal listening products. We will have Igor's brand new headphone amplifier, the Bravissimo, on demo. Igor strongly recommends that you bring your own headphones to hear what his new baby can do. Also, we will have the Astrell&Kern AK100 hi-res digital player on demo. This player has an internal memory of 32GB, so you can listen to the music already there, or, you can bring a micro-SD card (up to 64GB size) with your own files, up to 192/24, in FLAC or WAV format.
· high quality pix of New York Audio Show, April 12-14 2013    posted Apr 16, 2013 (show)
  • from NJAS member Blaine Handzus
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  • follow this link to Blaine's photos
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  • First-rate photos taken by our NJAS member Blaine Handzus with his Nikon D 600 at 1/250 F/8 24 mm

    Blaine forwarded me the URL for posting here on the wall. GDW

    Blaine's comments on the show: "Here are photos from floor 11, 10, and a little bit of 9. couldn't make the lower floors in time. The YG with battery powered class d hypex amps, with tubes, was one of my favorites, and the Top end Martin Logans I could suffer with if my maggies had to go...
· Tom Chapin in Concert    posted Apr 4, 2013 (show)
  • Not my cup of tea, but for those who enjoy...
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  • The Society Café Concert Series offers a series of acoustic singer/songwriter, folk and Americana concerts at the Unitarian Society of Ridgewood. Wine, dessert and coffee, all provided by local vendors, are available before the shows and during intermission.


    The next concert will be on Saturday evening, April 20th, and features the folk music of Tom Chapin.


    In a career that spans five decades, 23 albums and three Grammy awards, multi-talented singer/songwriter/guitarist Tom Chapin has covered an incredible amount of creative ground. As a music-maker, Chapin has maintained two long and productive parallel careers, both as a highly respected contemporary folk artist and as a pioneer in the field of children's music. In addition to his work as a recording artist and concert performer, Chapin has acted on Broadway, as well as working extensively in films, television and radio.


    "One of the greatest personalities in contemporary folk music" - The New York Times


    "Totally captivating" - Billboard Magazine


    Music starts at 8. We start serving wine and dessert at 7 when doors open.


    Advance tickets are $20 and can be purchased via PayPal on the Society Café website, www.societycafeconcertseries.com. Tickets are $25 the night of the concert.


    For any booking inquiries or information about the series, contact Mark Meding at m.meding@att.net.


    The Unitarian Society of Ridgewood is located at 113 Cottage Place, Ridgewood, NJ 07450, www.uuridgewood.org. Office: 201-444-6225
· Trouble in Paradise    posted Mar 31, 2013 (show)
  • http://vortexbox.org/content/121-VortexBox-Appliance
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  • As many of you know, I have been happily ripping my CDs to my Vortexbox Appliance (VBA) (http://vortexbox.org/content/121-VortexBox-Appliance) for about 18 months. Well, the other day, I came home to a cold, dark, and silent VBA. The power brick indicator light was on, so the CPU or the hard drive may have failed. Fortunately, I have all my FLAC files backed up to a portable USB hard drive. The VBA was sent in for service to the vendor. If I need a new CPU (the one in my VBA is out of production) and/or new hard drive, it will run me about $200. That's about half of what a new unit would cost, so I guess it is not unreasonable. I will post updates on the situation, since this may be helpful for those considering such a purchase. It does not appear, based on reading the Vortexbox forums, that there are especially high failure rates of this appliance, although being powered up continuously probably did not help things.
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  • Comments:
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  • § A Raspberry Pi replacement would be about $50.

    If it does not make any beeps when it starts, but some lights come on then it's the power supply. Beeping indicates the motherboard, video or memory is bad.
     ⤷ posted Mar 31, 2013 by JimOfAllTrades
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  • § But does it have the same functionality as a Vortexbox Appliance? Remember how low-tech I am, Jim!
     ⤷ posted Apr 2, 2013
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  • § It took a few weeks, but the vendor of the Vortexbox Appliance replaced the out-of-warranty failed unit with a new one, for about half the retail price. Pretty good. I am up and running again. The new unit was a drop-in replacement, and I restored my files from my backup hard drive.
     ⤷ posted Apr 23, 2013
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· Digital and Analog Numbers    posted Mar 30, 2013 (show)
  • Which are true?
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  • Linked In Hi Fi Audio Enthusiast
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  • This was a great conversation that had input from John Curl, Bob Rappoport and Tim De Paravicini and yours truly at the bottom or the caboose depending on your point of view.

    John
    I'm posting in Retro Audio Appreciation to see how many people are going back to Vinyls and turntables

    Michael Wulfsohn •I never left. Vinyl and tables have always been a part of my life and stereo system(s). At KUVO, 89.3 FM in Denver (public jazz radio) we still use 2 tables (if we want to) and manually feed CDs into 3 different players. We don't use hard drive music; still real people picking out and playing CDs and vinyl of their choice. A truly "beautiful" sounding CD is still rare to my ears. Most CDs have inherent harsh ultrasonic, dissonant, non-harmonic frequencies, that aren't "heard" but the ears can feel, causing listener fatigue. I get CD listener fatigue in about 1/2 hour of listening. That problem doesn't exist with vinyl. Tics, pops, and scratches, yes, but listener fatigue? No.

    Stefano Papini •Hi there, I built my first so-to-say serious TT something like five years ago...

    Karl Cripe •Just got back into it out of boredom.Using vintage Denon DP-11F TT with grado cart. I like the sound , but clean up of record and you just start getting into the music and time to flip LP. That is why I put a lot of it on Reel to Reel-TEAC A-7300/2T.

    Rahul Ramachandran •Just building up a collection of vinyl. Also getting interested in tapes.

    Eric Cross •I have worked in audio for over 35 years and now can not keep up with the demand for vintage turntables on my site www.vintageaudioworld.com. Vinyl has never died

    Greg Schmidt •When listening, I believe psychological effects can be powerful. I would be interested to know if anyone has tried doing a blind comparison test between a clean vinyl pressing and the same material on CD (as in the "Pepsi Challenge" test). A related test, would be to record the vinyl on CD and perform the test with original vinyl vs. recorded CD (the point of the latter test would be to eliminate the possibility that there is some artifact of vinyl transcription which some people find appealing and is independent of digitization). Has anyone tried anything like that?

    Vlado Angelov •I've rediscovered vinyl after 40 years now! Being with lossless and High definition digital audio /up to 12000 bps vinyl rips/ nothing compares to vinyl! I've got 4 TT recently /only last 6 months/ enjoying 150 LPs. Great! "Back To Analog"!

    Guntis Veisbergs •Sound itself, our hearing and our brain - all it is analog. Analog audio signal transmission, amplifying and RECORDING is much closer to real sound. No unwanted processes - converting, quantization, digitization, calculation, logic, processing, filtering, etc. - only mechanic, molecular and electron level processes. Even if analog recording is relatively noisy, has more distortion, wow and flutter, etc. - our hearing and brain is fast adapting to it and feels good. You can compare analog recordings in between, it is interesting and artful process - they are very different, colorful and LIVE.

    Different picture is with digital audio. "Recordings" are converted as minimum 2 times (but most case much more), quantized, digitized, processed, summed, filtered, etc. - it is very virtual sound DESCRIPTION. It change things by nature, because it is something very different for human hearing and brain. No reason to compare it with analog recording. You can try to compare digital recordings-descriptions in between, but it is not interesting process, because they all are dry, robotic, less informative, with zero energetics.

    Greg Schmidt •Well I realize this can be a controversial topic, and outside this thread, not everyone necessarily agrees that analog necessarily sounds "better". Given that psycho-acoustics could be involved, I think it would be useful to perform some blind A-B tests. I've seen plenty of arguments each way based on faulty or questionable "theory" so it would help to see some objective results. I'm open to supporting arguments each way, but a convincing test would involve blind comparison.

    Vlado Angelov •Technically human sensitivity is analog. Going deeper in sound digitalization everyone with basic technical knowledge can understand the Nos of compromises passed during digital to analog sound conversion. It's away from any psychology and blind tests, I believe and hear as well.

    Greg Schmidt •Again, we're dealing with impassioned arguments. The issue is by no means settled. Here's one point of view that differs:
    http://www.eetimes.com/electronics-blogs/audio-designline-blog/4033509/Vinyl-vs-CD-myths-refuse-to-die.

    Frank Alles •I know a lot of people here feel a certain romantic connection to analog and I do too. But I have to admit my digital playback is sounding extremely musical and convincing these days. I definitely feel connected to the music and do not hear the "inherent harsh ultrasonic, dissonant, non-harmonic frequencies" that Michael W. refers to. That said, I have taken steps to eliminate such things from the digital presentation. I feed my digital pure regenerated AC power for one thing and in addition I've picked my gear and associated cables/wires very carefully by ear to achieve the best, most musically involving presentation possible. And I've been very successful in doing that because I can listen to my digital gear for hours at a time without any listener fatigue.

    To get the best sound from a turntable system there are even more variables that need to be addressed as far as turntable setup, arm/cartridge matching, and cartridge loading, etc. are concerned. Still the results can be very rewarding and well worth the effort.

    Like Michael I grew up with analog so I'm not at all predisposed to liking digital better. To me it's more of an apples vs. oranges kind of thing.

    Mike Pearson •Hi Sean, "Going back to Vinyl and turntables" - I never left. A lot depends on what turntable you use, the cartridge and the phono stage and subsequently down stream of that with amps and speakers, but the pleasure of Vinyl is there to be heard

    john curl •I am still a believer in Vinyl reproduction. However, I don't play vinyl very often, it is just too cumbersome, sort of like having to change TV channels manually, like we used to. We all get lazy with digital doing most everything for us. However, I have NEVER been completely happy with digital, and I think analog reproduction, DONE RIGHT, is better.

    Greg Schmidt •@john (et. al.) - Could it also be digital "done right" (e.g. with high enough sampling rates to negate any audible harmonic effects) would transcend even the best vinyl recordings due to eliminating any physical limitations of the mechanical medium?

    Guntis Veisbergs •ANY additional process is degrading audio.
    Even not talking about problems of digital process.
    AD and DA convertors long calculation algorithms filters are additional processes.
    So there are not to talk about.
    Sorry - we can talk about better commerce ;)

    Guntis Veisbergs •40 years in Pro Audio as sound engineer and technician, and the same time with pro musical instrument fine tuning.
    I have a funny ~3 month period, when under external informative pressure I start to tend to change thinking position - digital audio is rather fine, better, even more better, perfect, excellent, etc...
    Then I take someone old original studio tape, put on my recorder, push PLAY button, and after some 2 minutes say - ***k digital audio !
    This result is always the same.
    I several times made very quality digital copies from these tapes, and started listening from them, comparing, etc.
    Open tests and blind tests.
    Day and night, real and virtual, recording and description.
    Longer listening - bigger difference, especially in energetics and in informative content.
    Many important things are lost in digital audio.
    But not lost even on old cassette tape recording !

    * I am not a vinyl fan, it is commercial format too - copy of tape, often processed digital (!), with some additional mechanical (wow & flutter noise, etc...), and additional analog audio (low signal level from cartridge, deep corrections, etc...) problems. Tape recorder has similar, but it is one time only. Vinyl is doubling initial problems and adding some new.

    ** Above was about recording, but approximately the same difference is in live or studio sound if signals are going true analog or through digital process. Analog reducing of some technical parameters are not important for human hearing. Digital process is changing things principle.

    Frank Alles •John C, to me, my vinyl usually sounds a bit more natural and correct on voices and acoustic instruments. I think it may have to do with more apparent high-frequency extension, or "air", although I'm not sure this can't be attributed to the rising treble response of many cartridges. Still, in my system I hear greater high-frequency extension and seemingly faster transients from my vinyl than I hear from my digital sources. The bass is a little plumper but ultimately less extended with vinyl but the whole effect is very musical and satisfying.

    For me it's always been a problem to get both my vinyl and digital sources sounding their best in the same system at the same time. Often when I optimize for one the other is a tad diminished. But I've done pretty well balancing the two lately.

    Frank A

    Reuben Johnson sr •Love vinyl having hard time getting good copy's any help ?

    Michael Hullevad •A comparison of the "Pawn shop" recording on vinyl and hires download has showed VERY little difference between them. (it does not get better than the recording).
    I prefer the vinyl edition for ease of use.
    Gear used NAD M51 DAC and The Grail MC/RIAA amp.

    Mike Pearson •Hi Reuben,
    Where are you buying your vinyl records from? There are many outlets and records shops in the US that sell great second hand vinyl albums and there is a big resurgence now with 180gram and even 200gram vinyl of both new and old recordings? A vinyl rebirth almost! And hence the number of turntables and cartridges that have now become available.

    Tim De Paravicini •I said in 1984 that we need 400 Khz and 24 bit sampling to equate to my 1 inch 2 track tape machine. Several hits have been recorded on that format.
    Just think of this. Vinyl has a half a giga Hertz sampling. That is the number of vinyl molecules passing the stylus every second! Vinyl carefully made can provide 90 dB dynamic range and in excess of 40 KHz high frequency response. My system at Mobile Fidelity on "Half Speed" mastering can give astonising results.

    Digital just cannot get away from sucesive approximation methods which is in reality a feedback mechanism that is always one clock pulse behind the event.
    Disc cutting and also analogue tape recorders are direct feedbackless systems. No Latancy period.

    FM radio is also capable of stuning quality but unfortunately the commercial broadcasters don't care. FM Tokyo and FM Osaka were absolutely purist. No compression no Equing just play the records or tapes as they are loud or soft.
    That is NAB 5cms velocity on vinyl or 200 nWb NAB tape level to equal 40% modulation level. You needed a good tuner such as the Yamaha 7000 to appreciate the quality. Even the BBC once apon a time did almost no processing.
    Unfortunately, the latest crop of vinyl is being cut from digital masters. sadly the Beatles mono re-issues are via digitaly processed masters.
    Digital did not bother with the dynamic range but ended up in the old Juke Box wars with Loudness the king. Zero dynamic range.

    Bob Rapoport •It seems incredible to me that after 40 years of steady progress in our software's storage capacity, bandwidth, and dynamic range that the audiophiles choose a format that can only hold 12 songs, must be equalized through the phono RIAA curve, and is compressed 10 to 1, allowing only 60 dB dynamic range. CD's can hold 12 songs on one side of a single disc, provide full bandwidth, and still have room for another 30 dB of dynamic range. That got us to 90 dB in 1980, still compressed 4 to 1 on 700 MB of storage capacity.

    Now we have Blu-ray, it can store 50 Gig un-compressed, able to deliver a bit-for-bit identical copy of the original studio master recording with 120 dB, and let you also see the artist making the music in 1080p HD resolution at the same time. Its simply preposterous that anybody would hold on to the past when the holy grail of high fidelilty is right under your noses. There has never been a better time than right now for audiophiles, yet they resist, holding on to 1977 for dear life.
    Sorry Facts are facts. Until you learn the actual specs of these media, you cant have a valid opiniion. Before stereo, there was mono. It took over 10 years for most people to adopt stereo, the so-called audiophiles could not let go of the past then, just as now.

    Guntis Veisbergs •Just summing, without talking about problems:
    1.Analog audio has analog audio problems.
    2.Digital audio has analog audio problems digital audio problems analog audio problems.
    What is better ?

    Tim De Paravicini •Bob Rapoport, Got a point to make? Blue ray whooppy doo. Will it still play in 100 years time? The more you cram down to a single molecule the more problems there are with recovery.
    I would love to invite you to the facility at Sabastopol of Mobile Fidelity and cut a
    laquer for you to hear. 60 dB is rubbish. I put my money where my mouth is.

    Quote "Now we have Blu-ray, it can store 50 Gig un-compressed, able to deliver a bit-for-bit identical copy of the original studio master recording with 120 dB," end quote.

    I think you should hear that when James Guthrie mastered the Pulse album for Pink Floyd from analogue masters with no digital processing to digital. He made about 15 first generation digital copies so as to send to the various CD plants around the world.
    Funny, bit perfect. but the CD that came back from each plant sounded different?
    Never would he copy digital to digital in the belief it is perfec bit for bit.

    I'm affraid that the 120 dB quoted must be a weighted figuer. An ideal noiseless 600 Ohm resistor has a noise figuer of 126 dB relative to 1.22 volts.band limits of 20 to 20KHz minus 3 dB. The best studio microphones add about 10 dB of noise.
    Even our own ears have the noise of the blood rushing around. Just that the brain has learnt how to ignore it.

    I have had these arguments over the years. I remember every one jumping on the CD as perfect sound for ever. Huh why then they change their tune when an improved higher speed system comes along. now we are up to 384 KHz/24 bit. maybe 768 will be the new perfect?
    Store the library of congress on a sugar cube sized block? I try to live in a real world.

    Bob Rapoport •You forget Tim, I introduced MFSL to the world in 1977 as their sales rep for the world, I worked with Stan Ricker, Gary Georgi, and Brad Miller and they knew full well the space limitations of vinyl records. I also introduced dts in 1997 with Brad Miller, the first DVD-A "CD's" had to be played on a DVD player and ended up as SACD, but it was better than analog by a mile.

    You are in denial. Until you actually listen to a Blu-ray concert, observing all the security protocols against piracy, you have not heard the best software in history. Try the AIX Records Blu-rays, recorded live, direct to Blu-ray. Btw, you can hear these soundtracks in LPCM 2.0 channel fold-down of the DolbyTruHD mix.

    My first audiophile listening experience was Triple KLH 9's playing an open reel live recording at 15 IPS of a symphony orchestra with no compression in 1975. The problem with those tapes is that they were not commerically available. We were stuck instead with vinyl, ticks and pops, wow and flutter, surface noise.

    Meridian Lossless Packing brought the compression down to 2 to 1 with Bob Stuarts ingenius algorythim in the early 00's. We gained another 10 dB dynamic range. For you and others to have missed the holy grail is embarrassing to say the least. It proves the so-called audiophiles dont know what they are talking about.

    Tim De Paravicini •Quote"You are in denial. Until you actually listen to a Blu-ray concert, observing all the security protocols against piracy, you have not heard the best software in history. Try the AIX Records Blu-rays, recorded live, direct to Blu-ray. Btw, you can hear these soundtracks in LPCM 2.0 channel fold-down of the DolbyTruHD mix." End Quote

    I will hold you to this, If after another 5 years you still believe this.
    Where is this "Best software in history"? Who's opinion of the best software.
    Lossless packing is fine but cannot be done in real time. ie zero latency. Yes, one can compress data extensively if you spend a lot of time going over a whole say one hours worth of data.
    I am never in denial. I said again I said it in 1984 that 400KHz 24 bit digital would equal the best analogue staight line no recording mic to speaker system to satisfiy the human hearing mechanism. It was the remainder of the world that said 44K1 16 bit was perfect sound forever. I assume that the algorithm that you are refering to is for noise shaping?

    As to Stan Ricker and others. They were dealing with standard disc cutting. I spent a lot of time in 1984 designing the system that was first used by Island Records as their cutting room the Sound Clinic. Wow flutter on the lathe is well below audibility.
    poor turntables maybe. Space limitations. What do you mean? not small?
    The Tape Project makes available 15 ips tapes that are copy masters. not cheap but the best is never cheap.
    What do you mean by "Observing all the security protocols against piracy"? Nothing ever stopped people devising ways to break systems. Not yet anyway. Enigma comes to mind.

    Bob Rapoport •Tim, I dont want to argue with you, needless to say, I am trying to turn you on to a joyful experience. One guy at amazon.com wrote:

    Five Stars on Amazon.com The Ultimate Mahler Cycle June 20, 2011 By Carl J. Weber “After being dazzled by opera on Blu-ray, I have now come to realize how live concert performances in this medium can offer even more listener involvement in the music and the performance than audio-only. It is totally engrossing, totally enjoyable. Not only does it exceed the hi rez audio-only listening experience, but in some ways, it exceeds even live performance because of the deftly done, intimate close-ups on stage. This set has smitten me to an absolutely unprecedented degree. And, I will be seeking out and collecting concert Blu-rays from here on in. It is truly a fantastic new dimension in classical music enjoyment in the home, with close-ups of conductor and performers. It gets us closer to live performance than anything in any medium to date“.

    Get an Oppo, get a couple of BR discs, then make an informed decision.

    Mike Pearson •Hi Bob,

    You made two comments: "We were stuck instead with vinyl, ticks and pops, wow and flutter, surface noise" and "There has never been a better time than right now for audiophiles, yet they resist, holding on to 1977 for dear life".

    To which I would comment, "Vinyl, ticks, pops, wow and flutter and surface noise' - I don’t know which turntable, cartridge, phono stage combination and record you were listening to, but I don’t experience those issues with my 30th anniversary Japanese direct drive turntable and an album collection of over 600 LP's, of which the larger majority of the LP's were purchased second hand. A tick and pop on the odd one maybe, but certainly not all and if a record is some 30 years old and no longer available in any other format, then it is easy to forgive such an issue.

    And "holding on to 1977 for dear life" - sure I am, as there are a lot of my 600 LP's that I own that are not available on CD and as it is that era of music that brings me personally great joy and the ability to re live many memories, then why not?

    You choose to enjoy blu ray reproduction along with quite a number of other people, but there are a huge amount of people that enjoy vinyl reproduction and hence the plethora of turntables, cartridges, phono stages and records that are now enjoying a great re birth.

    It should be noted also, that you do not have to be an audiophile to enjoy vinyl records, just being a music lover will suffice.

    Bob Rapoport •With all due respect Mike, once you hear Blu-ray, you cant go back to any other format, its spoils you forever. I lived through the vinyl era, I still have all my albums too, they are unlistenable by today's standards. Resistance is futile, get an Oppo, and join the fun, its more exciting than you can imagine.

    Mike Pearson •Hi Bob,

    No thanks, I will stick with what I enjoy and have enjoyed for years - Vinyl.

    I am not keen on digital reproduction and only bought CD's and a CD player some 30 years ago, because some of my favorite musicians and bands were obliged to go that way, owing to the demise of vinyl at that time.

    My preference is stereo and music to listen to rather than watch and listen.

    I don’t have 5.1, 7.1, blu ray etc and even listen to music DVD’s in stereo (not on my reference system) but that is only on the odd occasion for music DVD’s like Leonard Cohen – Live in London and Songs from the road where you get to see Javier Mas playing his banduria, laud and archilaud, which is truly spectacular as well as a pleasure to listen to. Both of which are now available on vinyl, which I have yet to purchase.

    Tim De Paravicini •I thought this thread was about going back to Vinyl? I am trying to keep it that way.
    An observation made many years ago and I still maintain holds true. many people can listen to a piece of music over and over again without getting bored but Film or Video buy the time you have seen it a second time know every move. I'll take an example:- The Blues Brothers I can only watch/listen to about once every 3 years.
    In the concert hall such as the Queen Elizabeth Southbank London Where I sit maybe 30 metres from the conductor. I don't have TV cameras to see close ups but still very much enjoy the experience.

    Pink Floyd of course made most of their work in a QUAD format so making a 5.1 SACD was very easy. But to get an idea of their perfectionism, I suggest viewing albeit in a much lower quality on youtube James Guthrie "The Missing Piano"

    Mono ludites still exist. You can still buy a new Mono cartridge. However Stereo did not happen commercially untill the late 1950s even though Blumlien at EMI had done stereo (Binaural) in 1931 but television became far more important commercially for the mass market.

    I also enjoy radio and in the UK we still have many plays and soaps that only require the minds imagination. The American DJ Wolfman Jack once said "Radio is the theatre of the mind"

    I am still persuing DSD audio for the market place. However Sony and Philips have tried very hard to keep the system technology locked up. This has hampered the take up more widely of DSD. The software available is not very exciting as yet. There also is a lot of deceit as to the purity of each format. that is up/down scaling and/or converstion such that you really do not know the authenticity of the music path. Much like Vinyl being cut from digital masters but not telling you the full truth.

    john curl •Well said Tim.

    Rich Teer •I'll chime in here and say that like others, I never abandoned vinyl. If anything, as my system as grown in its resolution, so has my enjoyment from the music I play on it.
    While one can't deny the convenience of digital, I also can't deny that vinyl--on a decent system--trumps digital from a sound quality perspective.

    John Pluta •I find this discussion really interesting.I too have been listening to music systems (my own) for 40 years. Bob, I have scanned your profile and If I am taking advice from creative audio folks; I have to say that a John Curl and a Tim De Paravicini trump a Bob Rapoport any day of the week.
    Bob, you, Tim and John are arguing over a lot of numbers. I am not an audio engineer but I know you all cannot be right.

    John Pluta •I picked up an original AR-XA TT, had the TA rewired. I then had someone change the two motor unit to a single motor unit (with a motor from an AR 77B, I think) and get some new spings. Amazing how a TT that is almost as old as me sounds. Right now it is paired with a Jolida hybrid Int Amp. that uses tubes and solid state. Added a Micromega MyDac to an older NAD CDP and thru the coax it really improved the old girl. I also have an inexpensive Bellari phono pre to the Jolida. Also some private speakers and I have a second system that is really listenable.
· Cut your own vinyl    posted Mar 26, 2013 (show)
  • (something I don't have time to do...)
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  • The Vinyl Recorder
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  • One of the German phono/RIAA guru's on DIYAUDIO posted the link above -- now we can make vinyl recordings of the theremin at Russ's house! Only 3,200 EUR. Talk about a "way-back" machine.
· Raspberry Pi Sound Server    posted Mar 22, 2013 by JimOfAllTrades (show)
  • Basic Setup
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  • Post 13 Image
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  • More than a few people requested that I outline how to set up computerized audio. There are many, many options. Probably the slickest option these days is to use the $35 and change Raspberry Pi computer (essentially the guts of a smart phone). This is mostly advice for those that don't already have a computerized setup or that want to free up the computer they are using now. If you have a dedicated set up like a vortex box, this won't add anything to your system.

    I will not go into any great details, but the basics are simple enough. You buy the RP, and the power adapter (unless you have a spare cell phone charger), a case and an SD card w/ the Raspbian "wheezy" OS already installed.

    There's a bit of technical set up to do once it arrives. If you need assistance with that, let me know. If you are familiar with Linux (the erector set of OSes) then following directions for installing MPD from many online websites should suffice. You will also need to set up the Pi on your network, limit logging, add ssh and connect to your music library (assuming you've got a digitized music library already). Then you install MPD and set it up for your system playback.

    MPD can playback hi-res files but I'm not sure if the "wheezy" version does that or if you need a newer version. I haven't gotten that far in my research. It does upsample to 24/192 though.

    I've drawn up a diagram of how the system works (see above). You start with your music library. Either it's on your home network or an external USB hard drive. Either way, hook up or Pi to your home network through a hub with a Cat-6 cable. While you can use wi-fi with the Pi, this requires buying a USB wi-fi board and more fiddling.

    If you are using an USB external HD, connect it to your Pi with a USB cable. It should be detected automatically, but you will need to point it towards your music directory for MPD to see it properly (this is called the mounting point -- not something to play with if you've never done this before). Network based storage is mounted to your music directory either through SAMBA, CIFS or NFS. Again, lots of fun if you know what you are doing.

    Probably the easiest part is plugging the USB DAC into the Pi through it's second USB port or a USB Hub.

    Now, notice that you don't use the monitor, keyboard or mouse on the Pi after it's set up. Simply make the three connections on the diagram and let it boot up on its own.

    So, how do you control the music then?? Well, the slick part is that you can control it from any number of devices. You just need to install and set up MPD client software.

    I've tested it and it sounds great. The buffering allows it to play a song essentially from RAM and there are no moving parts. It only uses 3 Watts, so you can leave it on all the time.

    SD cards are notoriously flaky and unreliable (something like tubes, but cheaper). You may wish to get an SD card reader and backup your installation to a computer. You can get spare SD cards for about $8. Installing your setup on them is not too difficult.

    If your Pi connects to the Internet you may wish to update the OS every so often (once a month maybe). To do that you will need to log into the Pi through ssh or plug in a monitor, keyboard and mouse (mouse optional). You would need to issue the following three commands, hitting enter after each one (and say yes when it asks to confirm the upgrade):

    sudo apt-get update
    sudo apt-get upgrade
    sudo apt-get clean

    It might take a while for the update to proceed. Almost all the advice you could want is available through Google searches.

    I can aid club members with the initial set up if you are interested. And despite what you might think from reading the stuff above, once it's running it's very easy to use.

    Thanks.
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  • § Considering that Squeezebox devices were discontinued, this sounds like a real alternative. My only concern is that it upsamples everything thus adding a little distortion (that is a side effect of using Pulsaudio stack) rather passes audio stream in the source format.
     ⤷ posted Mar 22, 2013
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  • § The stock setup uses ALSA, not Pulseaudio.
     ⤷ posted Mar 22, 2013 by JimOfAllTrades
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  • § Jum Thanx. I'm DEFINITELY interested. I'm sure I'll need your help with setting this up.
    regards, Lou Oddo
     ⤷ posted Mar 31, 2013
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  • § Additional helpful links:

    http://lesbonscomptes.com/pages/raspmpd.html

    (You don't really need to change users or use autofs and you can buy it with Raspbian already installed, which has a set up program when you first turn it on. Add your music library to a music directory under /home/pi, as in /home/pi/music. Then mount the library there in fstab.)

    http://blog.netflowdevelopments.com/2012/03/13/prevent-your-log-files-from-getting-out-of-control-in-debian-squeeze/ ⤷ posted Apr 2, 2013 by JimOfAllTrades
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  • § I feel I should warn people that while this is a DIY project, the computer-techie nature of the setup will probably be off-putting for most, particularly if you only play around with Windows or Mac computers. It's not a difficult project, but you would need a few years of Linux experience to be able to follow directions you get online.

    I've set up two Pi's so far, and by myself it only takes about 30 minutes to do. When I was trying to help a club member over the phone though, it took hours just to talk through the commands, so that 3rd attempt wasn't too productive.

    I should reiterate that 1) you don't run it with a keyboard or monitor in your system but you do need those things to set one up and 2) you need another computer connected by some means to your home network to act as the remote control--but this isn't like a TV remote control (and I can't see how a TV remote control could work here).
     ⤷ posted Apr 4, 2013 by JimOfAllTrades
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· New York Audio Show    posted Mar 19, 2013 (show)
· My audio collection on TV    posted Mar 5, 2013 (show)
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  • The TV show "THE AMERICANS" (Weds on FX) used a small truck load of my audio gear as set dressings as well as a new show "CARRIE DIARIES" an off shoot of "Sex in the City"
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  • § Did you get it back?
     ⤷ posted Mar 5, 2013 by JimOfAllTrades
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  • § Way cool! I hope everything was insured.
     ⤷ posted Mar 10, 2013
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  • § phillip, Yes,they provided insurance. Everything came back without a scratch. Production team were real pros!
     ⤷ posted Mar 10, 2013
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· Greater New Jersey Record Show    posted Mar 4, 2013 (show)
  • Sunday, March 10, 2013
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  • FYI - GNJRS will host one last record and cd show at Hotel 304 West in Springfield, NJ (formerly the Holiday Inn). The next show, in June, will be at a new venue. For $1 off admission, go to www.izzymusic.com and print out the discount.
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  • § Springfield was sooo convenient. Otherwise, goood, now the temptation will be further away.


     ⤷ posted Mar 8, 2013
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· Discount tickets to NJSO    posted Feb 27, 2013 (show)
  • Click To Go To Amazon.com
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  • Got this from Amazon local deals.

    http://local.amazon.com/hoboken-jersey-city/B00BHJW3CQ?src=email&cid=em_dd_070_101_na_s1_&ref_=pe_254660_28462580
· YouTube Reviews - Pink Floyd "Echoes" From Live at Pompeii    posted Feb 25, 2013 by JimOfAllTrades (show)
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  • For anyone familiar with the band Pink Floyd this performance of "Echoes" is a must-see, and the movie Live at Pompeii, long out of print on VHS or laserdisk, is available on DVD as a director's cut version, which means some additional footage and messed up aspect ratios.

    However, if you don't want to buy the DVD or BR, you can audition it on YouTube (seen above).

    The song "Echoes" is already a masterpiece based on the LP or CD (studio) version, but this live version involves performing at unforeseen levels for a rock band, almost every note dripping with nuance. It's perhaps a bit self-indulgent, but you'll quickly forgive that because the artistry on display is simply astonishing. This was a band at the peak of their talents and completely "in the groove" or "in the zone" to borrow a cliché. The video footage does now look very dated, but also has a touch of nostalgia to it.

    If you are not familiar with "Echoes", it's both the second side to the album Meddle and a four movement "song". It's theme is echoes of various sorts and there are a lot of audio echoes in the piece, some a true test of a good audio system (and hearing). The intro sets up the notion of a kind of love-at-first-encounter romance which then becomes echoed into a long dream sequence of reliving or remembrance and then closes with the dreamer awakening and recalling both the dream and the romance. The dream sequence becomes associated with the sea, seabirds, sonar and sonar "pinging" which eventually becomes a sound sequence and musical theme. It's fruition is about the best that's out there in rock music. It might payoff to become familiar with the studio version first, since all the changes in the live performance in essence require the listener to know the former in order to "get it". Either way you can't go wrong. If you are finding the psychedelic second movement a little too far out then patiently wait for the final two to discover a more than complete redemption.

    Category: rock masterpiece.
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  • § Being a consummate Floyd fan I have the DVD as well as the Meddle LP. Very enjoyable indeed.
     ⤷ posted Feb 26, 2013
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· DIGITAL audio set up    posted Feb 24, 2013 (show)
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  • what dac/ dock/ server bests a 6k to 9k cd player?
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  • § Computer audio replaces the transport, but not the DAC. It's way better than any transport. At this point, getting an expensive CD player is probably not worth the cost.
     ⤷ posted Feb 24, 2013 by JimOfAllTrades
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  • § I agree with Jim. One can purchase a high quality CD transport for 6-9K, but why not eliminate the transport, and the expense, by going to a hard drive? For that kind of coin, you can have a solid state memory-based server, which eliminates more moving parts (and therefore the potential for performance problems) than even standard hard drives. You'd still have enough left over for a first rate DAC.
     ⤷ posted Feb 27, 2013
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  • § thanx for the replies. Free feel to recommend a DAC to use with itunes or foobar etc
     ⤷ posted Mar 5, 2013
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