[SlimDevices: Audiophiles] AB Testing Support
Hi All, Since AB testing comes up a lot (particularly with FLAC) I thought it would be useful to be able to do this without a massive amount of effort. What I have done is develop a script that takes an original WAV file and chops it into regular chunks. These chunks are then (on a random basis) converted to FLAC. When you listen to the chunks in sequence the original song becomes seamless, but the encoding method changes at random. So if you believe you can tell a difference you should be able to hear the change. I have to say, I did this for myself and I am personally convinced that I can hear no difference (I sort of knew it before, but now I believe it in my soul) I've attached the script, there is some documentation, but at present there's no support. Anyone familiar with perl will have no problem, others might struggle using it. I may develop it further, but have no time right now. I'm just throwing it out there to see who's interested. Malcolm Feel free to post your comments back here, try it out, develop it further etc. +---+ |Filename: createABTest.zip | |Download: http://forums.slimdevices.com/attachment.php?attachmentid=957| +---+ -- mwphoto mwphoto's Profile: http://forums.slimdevices.com/member.php?userid=652 View this thread: http://forums.slimdevices.com/showthread.php?t=21545 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Linear PSU in stock at Farnell (UK)
Although their website shows awaiting delivery Farnell took delivery of 18 Stontronics Linear PSUs on Friday. They now have 17 left ;) http://uk.farnell.com/jsp/endecaSearch/partDetail.jsp?SKU=4264824N=401 Tim -- timmorris timmorris's Profile: http://forums.slimdevices.com/member.php?userid=4147 View this thread: http://forums.slimdevices.com/showthread.php?t=21550 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Re: SB is killing the SACD format! ;)
deepblu Wrote: I am also one who put the hybrid discs aside for the plain old Redbook format. I have dismantled my 7.1 surround in favor of pure audio, 2 channel sound. Funny thing is that 7.1 was always missing the straight forward punch and clean that 2 channel analog provides. SB3 has brought me full circle. My surround system has been liquidated. Bravo! Im not selling my Sony SCD555ES, nor my sacds... but its true that the amount of proper SACD listening has been reduced to a surviving minimum... :-) -- Néstor Whole album Flac files -- Squeezebox (3) -- direct to Outlaw 7100 amp using Slimserver Preamp Vol Control -- Monitor Audio S6i Néstor's Profile: http://forums.slimdevices.com/member.php?userid=60 View this thread: http://forums.slimdevices.com/showthread.php?t=21542 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Re: SPDIF question - error correction and interconnect quality
dorkus Wrote: regardless, if you cannot hear the differences, consider yourself very lucky. :) being able to hear all these little changes is a curse really. It was easy to hear the difference between that Philips chipset DAC (built in to the CD player) and the Lucid DA2496 until I did a blind test. The experience made me fundamentally re-think my approach towards evaluating audio equipment. -- cliveb cliveb's Profile: http://forums.slimdevices.com/member.php?userid=348 View this thread: http://forums.slimdevices.com/showthread.php?t=21415 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Re: Some Interesting Classical Discs
dwc Wrote: Here's a user list of the ones at amazon. Are any of these essential? http://tinyurl.com/ndljk Didn't you read the reviews?? -- Skunk Skunk's Profile: http://forums.slimdevices.com/member.php?userid=2685 View this thread: http://forums.slimdevices.com/showthread.php?t=21522 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Re: Linear Power Supply DIY Weekend Project
Do you know why the output transistors are bolted to that big piece of aluminum that makes up the chassis of the power supply? That is done to cool the output devices. Do you know how it cools them? It cools them by transfering the heat to the surrounding air. Do you know what happens if you put the supply inside a box? You will heat the air inside the box. Do you know what will happen if the air gets too warm? Your power supply will die. Those supplies are usually installed in equipment that has some air space and fans to move cool air through the cabinet. Unless your installation is that type, you should bolt the smooth side of the supply chassis to your aluminum box (without standoffs!) to transfer the heat out of the supply to your room air. If you must use a power supply that requires fan cooling, try using a 220VAC fan running on 117VAC (or a 12VDC fan running at 6-8VDC). It will turn slowly and quietly and should provide sufficent air motion to keep a small power supply cool. On yes, just as your box needs to allow the heat to escape to the outside world, the fan needs to blow air THROUGH the box. That means you must provide holes to allow air flow. Once you install a fan you will have all the audio maniac questions about vibration, power line noise, and varying magnetic fields from the fan motor and how they will all affect your sound. You see, you can't win no matter what you do. TD -- tyler_durden tyler_durden's Profile: http://forums.slimdevices.com/member.php?userid=2701 View this thread: http://forums.slimdevices.com/showthread.php?t=21505 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Re: AB Testing Support
Here's a new version that supports MP3 (same caveats as before, be prepared to get into the code) I've taken a slightly different approach for MP3 (it works the same as it used to with FLAC). I found a worryingly small difference between MP3 and WAV when I tested (I thought I had better ears!) Malcolm It strikes me that there's other 'audio' test stuff that could be done here. In particular I was thinking of 'random' test signal that beeps at different amplitudes, frequencies and locations across the sound stage. You could use it to determine the response of your setup (including your ears). I'll have a think and maybe develop something. +---+ |Filename: createABTest.zip | |Download: http://forums.slimdevices.com/attachment.php?attachmentid=959| +---+ -- mwphoto mwphoto's Profile: http://forums.slimdevices.com/member.php?userid=652 View this thread: http://forums.slimdevices.com/showthread.php?t=21545 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Re: Linear Power Supply DIY Weekend Project
tyler_durden Wrote: (without standoffs!) Hi there. Are you assuming the bottom of that PS is smooth? It's not. FWIW, the smooth side of mine is against a sheet of copper, which itself is against the outside of the case. Crooners looks to be bolted to his aluminum case. Did you also not see the plethora of vent holes in mine, and read that crooner is planning on drilling some (although in the bottom??); or did you just feel like saying *something*. -- Skunk Skunk's Profile: http://forums.slimdevices.com/member.php?userid=2685 View this thread: http://forums.slimdevices.com/showthread.php?t=21505 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Re: Linear Power Supply DIY Weekend Project
Skunk Wrote: Hi there. Are you assuming the bottom of that PS is smooth? It's not. FWIW, the smooth side of mine is against a sheet of copper, which itself is against the outside of the case. Crooners looks to be bolted to his aluminum case. Did you also not see the plethora of vent holes in mine, and read that crooner is planning on drilling some (although in the bottom??); or did you just feel like saying *something*. Down, boy! ;-) -- jonheal Jon Heal says: Have a nice day! http://www.theheals.org/ jonheal's Profile: http://forums.slimdevices.com/member.php?userid=2133 View this thread: http://forums.slimdevices.com/showthread.php?t=21505 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Re: A photo of your Squeezebox setup (please)
A poll associated with this post was created, to vote and see the results, please visit http://forums.slimdevices.com/showthread.php?t=19817 Question: Should there be a new forum for photos? - yes - no - maybe [image: http://forums.slimdevices.com/attachment.php?attachmentid=960stc=1d=1141056393] [image: http://forums.slimdevices.com/attachment.php?attachmentid=961stc=1d=1141056528] +---+ |Filename: nslu2.jpg| |Download: http://forums.slimdevices.com/attachment.php?attachmentid=961| +---+ -- mac mac's Profile: http://forums.slimdevices.com/member.php?userid=932 View this thread: http://forums.slimdevices.com/showthread.php?t=19817 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Re: SPDIF question - error correction and interconnect quality
cliveb Wrote: It was easy to hear the difference between that Philips chipset DAC (built in to the CD player) and the Lucid DA2496 until I did a blind test. The experience made me fundamentally re-think my approach towards evaluating audio equipment. quick A-B blind tests are not very instructive, as they tend to make it very difficult to make out anything but the most egregious differences in sound quality. blind tests in and of themselves are fine, but they have to be done over prolonged periods (days, even weeks) so the sound of each method can adequately sink in. long-term listening can yield very different conclusions from short-term comparisons. if you rely on quick A-B testing to evaluate equipment, i think it might be difficult to achieve a high level of listening satisfaction in the long term. i review gear for an audio publication and very often i've heard stuff that wowed me in the first couple days of listening and in A-B tests, but ultimately left me unsatisfied when left in the system for the long haul. -- dorkus dorkus's Profile: http://forums.slimdevices.com/member.php?userid=3373 View this thread: http://forums.slimdevices.com/showthread.php?t=21415 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Re: SPDIF question - error correction and interconnect quality
p.s. clive, i hope you don't think all i'm trying to do is contradict you at every opportunity. :) just trying to provide an alternative view of things in the hopes that it may help you get greater musical satisfaction out of your hi-fi. -- dorkus dorkus's Profile: http://forums.slimdevices.com/member.php?userid=3373 View this thread: http://forums.slimdevices.com/showthread.php?t=21415 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Re: Linear PSU in stock at Farnell (UK)
sjalloq said the following on 02/27/2006 01:51 PM: Are uk.farnell.com and cpc.farnell.com different companies? I've had the PSU on order since last week and the girl I just spoke to said they're expecting delivery on the 5th April!!! Not happy. :-( Different companies, same parent company (I used to work for Premier Farnell). They share stock, i.e. if you order electronics components from cpc.farnell.com the order will be fulfilled by Farnell InOne. R. ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Re: SPDIF question - error correction and interconnect quality
dorkus Wrote: p.s. clive, i hope you don't think all i'm trying to do is contradict you at every opportunity. :) just trying to provide an alternative view of things in the hopes that it may help you get greater musical satisfaction out of your hi-fi. As it happens, I do get a great deal of satisfaction from my hi-fi. For about 15 years I was a typical audiophile, forever seeking out better equipment to feed my habit. (In a sense, audiophilia is like an addiction). Then in 1993 I bought a new pair of speakers, and since then the urge to tinker and try out new things has practically disappeared. I put this down to the fact that when those speakers arrived, I had finally got to the point where my system was playing music instead of audio. For sure, I sometimes wonder whether something new is worth trying - hence the experiment with the Lucid DAC. But the bottom line is that I'm happy with the way it sounds and I have better things to do with my money. Meanwhile, I'll occasionally pop up in here to offer some objective ying to the subjectivists' yang. This thread started out as a discussion of SPDIF. My only intention in posting was to point out how amazingly robust the protocol is, and that people fret far too much about it. -- cliveb cliveb's Profile: http://forums.slimdevices.com/member.php?userid=348 View this thread: http://forums.slimdevices.com/showthread.php?t=21415 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Re: power supply: can it really make a difference?
Someone should put an end to this nonsense. For the digital output, the only thing that matters is the jitter spec, or the timing of the bitstream. If I knew how to measure jitter, I'd do it myself. It seems to me that all one would have to do is a jitter measurement with each type of power supply. Is jitter reduced for a linear supply? Then we could have a definitive answer, at least, for the digital output. -- ezkcdude ezkcdude's Profile: http://forums.slimdevices.com/member.php?userid=2545 View this thread: http://forums.slimdevices.com/showthread.php?t=21556 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Re: Group buy for Scientific Conversions Transformers
This is the total order that I plan for today 02-27-2006. If you want in and do not see your name, please contact me ASAP (email preferable mamster (at) webeasy (dot) com). Patrik Floding SC916-012 (already in stock) Jean-Claude GaertnerSC916-011 (already in stock) Patrik Floding SC947-024 Jean-Claude GaertnerSC947-022 Jason SC947-021 Kim Rochat SC947-026 Randy TsuchiyamaSC947-021 -- mamsterla mamsterla's Profile: http://forums.slimdevices.com/member.php?userid=469 View this thread: http://forums.slimdevices.com/showthread.php?t=21347 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Re: Linear PSU in stock at Farnell (UK)
When I spoke to the manufacturer I said the same, but he said they order stock seperately, and that CPC had some units on backorder and the 18 that went out to Farnell last week had completely cleared out his current inventory. I would check with CPC rather than just waiting. Tim -- timmorris timmorris's Profile: http://forums.slimdevices.com/member.php?userid=4147 View this thread: http://forums.slimdevices.com/showthread.php?t=21550 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Re: power supply: can it really make a difference?
ezkcdude Wrote: Someone should put an end to this nonsense. For the digital output, the only thing that matters is the jitter spec, or the timing of the bitstream. If I knew how to measure jitter, I'd do it myself. It seems to me that all one would have to do is a jitter measurement with each type of power supply. Is jitter reduced for a linear supply? Then we could have a definitive answer, at least, for the digital output. Probably I'm misunderstanding the issue here, but I'm not sure what you would measure. The earlier response from Robin Bowes makes some sense to me - I suppose when the DAC receives the signal from the squeezebox, it might use the (say) rising edges of the signal as a clock. If the PSU induced some noise in the signal, like rounding off the edges or just adding junk, maybe that can make the DAC clock tick a bit early or late, and therefore cause it to change its analogue output level at not quite the correct time (i.e. induce jitter). Is that the general idea, Robin? But that seems to me to be a combination of the characteristics of the digital output of the sbox and of the DAC itself, so maybe any measurement you did on the sbox output alone might not mean much? -- opaqueice opaqueice's Profile: http://forums.slimdevices.com/member.php?userid=4234 View this thread: http://forums.slimdevices.com/showthread.php?t=21556 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Re: power supply: can it really make a difference?
ezkcdude said the following on 02/27/2006 06:19 PM: Someone should put an end to this nonsense. What nonsense? For the digital output, the only thing that matters is the jitter spec, or the timing of the bitstream. Well, not quite. But assuming you're right, what factors affect the jitter performance? If I knew how to measure jitter, I'd do it myself. It seems to me that all one would have to do is a jitter measurement with each type of power supply. Is jitter reduced for a linear supply? Then we could have a definitive answer, at least, for the digital output. Assuming that your assumption that the only thing affecting the digital output is the level of jitter is correct. R. ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Re: SPDIF question - error correction and interconnect quality
hi clive, that's great that you're happy with your rig - that's a lot more than i can say for most audiophiles! cliveb Wrote: This thread started out as a discussion of SPDIF. My only intention in posting was to point out how amazingly robust the protocol is, and that people fret far too much about it. right, sorry for all the digressions. back to the subject at hand, and where my objection originally started. :) not to fan the flames of audiophile neurosis, but i actually do not think most people are not concerned ENOUGH with it. i'm guilty of this as well, i tend to just throw a belden coax in there and be done with it - i'm usually too lazy to fuss with it. but i've been using a single-box CD player for a few years now, so i haven't had to contend with the whole SPDIF ordeal. yes, SPDIF is very robust - that was clearly one of the original design objectives. however, i disagree that this robustness in data integrity translates to immunity to audible changes. this is not just a subjective evaluation, it is easily measurable as well. really, the best way is to avoid SPDIF altogether by using I2S (either internally as all CD players do, or externally to the DAC). but if you are stuck with it, it *is* worthwhile to play with different cables, connectors, tx/rx circuits, etc. to see if it makes a difference in sound quality, even in a resampling DAC like the Benchmark. the more i learn about how things work, the more i realize how little i actually know and how much knowledge and experience it takes before you can start to understand all the myriad phenomena at play in even the simplest of circuits. just perusing some of the in-depth technical discussions on the DIY sites has forced me to dust off the ol' EE college textbooks. cheers, dorkus -- dorkus dorkus's Profile: http://forums.slimdevices.com/member.php?userid=3373 View this thread: http://forums.slimdevices.com/showthread.php?t=21415 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Re: power supply: can it really make a difference?
ezkcdude Wrote: If I knew how to measure jitter, I'd do it myself. If you knew how to attach a barrel connector I'd be interested in your findings. [1,2] [1] http://forums.slimdevices.com/showpost.php?p=89686postcount=11 [2] http://forums.slimdevices.com/showpost.php?p=83293postcount=35 opaqueice Wrote: So if the PSU on the sbox has any effect on sound, it seems to me so should the PSU on the computer (never mind that I can't see what that effect could possibly be). If you're of the mind a swithing power supply can pollute mains power, the computer's PS would be a candidate for a linear upgrade. I believe my system sounds better at 3am- when there's less noise on the grid in general, and it irks me knowing the PC in the basement suffering from electrical-noise diarrhea. Most of the wee hour effect is probably just a lower noise floor though. -- Skunk Skunk's Profile: http://forums.slimdevices.com/member.php?userid=2685 View this thread: http://forums.slimdevices.com/showthread.php?t=21556 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Re: Linear PSU in stock at Farnell (UK)
timmorris said the following on 02/27/2006 06:36 PM: When I spoke to the manufacturer I said the same, but he said they order stock seperately, and that CPC had some units on backorder and the 18 that went out to Farnell last week had completely cleared out his current inventory. I would check with CPC rather than just waiting. CPC can pull stock from Farnell if they are OOS. Call CPC and ask them. R. ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Re: SB-3 and external DAC
to anyone interested, i ordered a MHDTLabs Paradisea last friday the 24th, and it's here! i'll write a review of what i *hear* when i get to hook it up. i also received my bluejeans digital cable today. woo! ___ krell kav-400xi integrated amp vienna acoustics 'beethoven' speakers * sb3 * audioquest diamondback interconnects diy acoustic room treatment flac with accuraterip ___ -- gobikey gobikey's Profile: http://forums.slimdevices.com/member.php?userid=3804 View this thread: http://forums.slimdevices.com/showthread.php?t=17948 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Re: power supply: can it really make a difference?
Skunk Wrote: If you're of the mind a swithing power supply can pollute mains power, the computer's PS would be a candidate for a linear upgrade. I believe my system sounds better at 3am- when there's less noise on the grid in general, and it irks me knowing the PC in the basement suffering from electrical-noise diarrhea. Most of the wee hour effect is probably just a lower noise floor though. Well, I'm now partly convinced that the sbox PS could have an effect, since the box is outputting a real time audio signal which could induce jitter in the DAC. It seems to me this must depend greatly on the DAC (for example a DAC with its own clock or a data buffer might be insensitive to this), but I can see how there might be an effect. But how can there possibly be an effect from the PC PSU? The data is sent over a computer network, which (last time I checked) includes error checking mechanisms which essentially guarantee a perfect bit-for-bit transmission to the sbox. Not to mention that if you're concerned about that, you're opening a huge can of worms: inside your computer case you have fans, multiple power supply cables, very complex electronics etc. all of which could potentially induce noise in the signal. -- opaqueice opaqueice's Profile: http://forums.slimdevices.com/member.php?userid=4234 View this thread: http://forums.slimdevices.com/showthread.php?t=21556 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Re: SB is killing the SACD format! ;)
Count me in as one who dumped SACD since I got my SB3. SACD can sound very good but so can redbook. I will also go out on a limb and state that redbook via SB3 with a non-OS filterless DAC sounds about 95% as good as SACD. Close enough for me. Only bought a few SACDs, sold my Sony 222ES on ebay recently. -- Horizons Horizons's Profile: http://forums.slimdevices.com/member.php?userid=2576 View this thread: http://forums.slimdevices.com/showthread.php?t=21542 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Re: SB is killing the SACD format! ;)
Horizons, do you have a NOS DAC? If so, which one? I recently purchased a Derek Shek NOS on eBay. I love the NOS idea. -- ezkcdude ezkcdude's Profile: http://forums.slimdevices.com/member.php?userid=2545 View this thread: http://forums.slimdevices.com/showthread.php?t=21542 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Re: AB Testing Support
Hi Folks. Well I've just joined the exciting world of SB3 after a friend lent me a spare one which he'd bought for his bedroom. As I told him through gritted teeth The only way you're getting this back is by prising it from my cold dead hand Anyway, I'd read all that people have said about format, quality, easy of use, not shackling yourself to an 'Apple only' file format (have an MP3 player in my car) and had opted for using Easy CD-DA to rip everything to FLAC. Out of curiosity, I decided to try comparing an untouched WAV file ripped using iTunes (ripped very fast, about x30) with the same track as a FLAC file produced by Easy CD-DA. I have to say that despite being a hardened hifi nut of many years , I couldn't reliably separate the WAV, FLAC and original CD through a £3k CD player. As a result I've decided to save my sanity and do the lot as uncompressed WAV files and invest a bit of money in some HD space. Has anyone else done this comparison? -- hifisteve hifisteve's Profile: http://forums.slimdevices.com/member.php?userid=4227 View this thread: http://forums.slimdevices.com/showthread.php?t=21545 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Re: AB Testing Support
I'm not sure I follow your logic.You can't tell the difference between FLAC and WAV (which to date nobody has been able to do using blind testing), so you settle on WAV as your format of choice?I think the biggest hassle you're going to have with WAV is the lack of tagging. Disk space is cheap, so FLAC's main selling points (for me) are no loss of audio data and tagging. The space saved is just gravy.. On 2/27/06, hifisteve [EMAIL PROTECTED] wrote:Hi Folks.Well I've just joined the exciting world of SB3 after a friend lent me a spare one which he'd bought for his bedroom. As I told him throughgritted teeth The only way you're getting this back is by prising itfrom my cold dead handAnyway, I'd read all that people have said about format, quality, easy of use, not shackling yourself to an 'Apple only' file format (have anMP3 player in my car) and had opted for using Easy CD-DA to ripeverything to FLAC.Out of curiosity, I decided to try comparing an untouched WAV file ripped using iTunes (ripped very fast, about x30) with the same trackas a FLAC file produced by Easy CD-DA.I have to say that despite being a hardened hifi nut of many years , Icouldn't reliably separate the WAV, FLAC and original CD through a £3k CD player.As a result I've decided to save my sanity and do the lot asuncompressed WAV files and invest a bit of money in some HD space.Has anyone else done this comparison?--hifisteve hifisteve's Profile: http://forums.slimdevices.com/member.php?userid=4227 View this thread: http://forums.slimdevices.com/showthread.php?t=21545___audiophiles mailing list audiophiles@lists.slimdevices.comhttp://lists.slimdevices.com/lists/listinfo/audiophiles ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Re: AB Testing Support
hifisteve Wrote: Hi Folks. Well I've just joined the exciting world of SB3 after a friend lent me a spare one which he'd bought for his bedroom. As I told him through gritted teeth The only way you're getting this back is by prising it from my cold dead hand Anyway, I'd read all that people have said about format, quality, easy of use, not shackling yourself to an 'Apple only' file format (have an MP3 player in my car) and had opted for using Easy CD-DA to rip everything to FLAC. Out of curiosity, I decided to try comparing an untouched WAV file ripped using iTunes (ripped very fast, about x30) with the same track as a FLAC file produced by Easy CD-DA. I have to say that despite being a hardened hifi nut of many years , I couldn't reliably separate the WAV, FLAC and original CD through a £3k CD player. As a result I've decided to save my sanity and do the lot as uncompressed WAV files and invest a bit of money in some HD space. Has anyone else done this comparison? As has been said many, many, many times on the forum, there is no difference between WAV and FLAC. FLAC is a LOSSLESS format with the same exact information as the original WAV. The only reason I could see for using WAV is too save a wee bit of encoding time. There are many more advantages to using FLAC. But, hey, whatever floats your boot (as the Canadians would say!) -- ezkcdude ezkcdude's Profile: http://forums.slimdevices.com/member.php?userid=2545 View this thread: http://forums.slimdevices.com/showthread.php?t=21545 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Re: Linear PSU in stock at Farnell (UK)
Are you guys sure those are linear? They say regulated, but switching supplies can also be regulated. -- ezkcdude ezkcdude's Profile: http://forums.slimdevices.com/member.php?userid=2545 View this thread: http://forums.slimdevices.com/showthread.php?t=21550 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Re: power supply: can it really make a difference?
In general, a power supply change can affect jitter. If the supply is noisy, the threshold at which digital circuits switch can vary with the power supply noise. That then effects the timing of the transitions which is the very definition of jitter. If the power for the digital circuits including the output in the SB are directly powered by the external power source, you may see a change in jitter when you switch the power supply. If the digital circuit power comes from the switcher on the diaplay board, as does the analog circuit power, changing the external power supply is as unlikely to make a difference in the digital jitter as it is to make an audible difference in the analog output. Only you can decide if the digital jitter is audible in either case. TD -- tyler_durden tyler_durden's Profile: http://forums.slimdevices.com/member.php?userid=2701 View this thread: http://forums.slimdevices.com/showthread.php?t=21556 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Re: power supply: can it really make a difference?
ezkcdude Wrote: Someone should put an end to this nonsense. For the digital output, the only thing that matters is the jitter spec, or the timing of the bitstream. If I knew how to measure jitter, I'd do it myself. It seems to me that all one would have to do is a jitter measurement with each type of power supply. Is jitter reduced for a linear supply? Then we could have a definitive answer, at least, for the digital output. Sean Adams has done some lab work. http://www.seanadams.com/smps_vs_linear/ -- abdomen abdomen's Profile: http://forums.slimdevices.com/member.php?userid=1205 View this thread: http://forums.slimdevices.com/showthread.php?t=21556 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Re: Props To Mobile Fidelity Sound Labs
Pale Blue Ego Wrote: I recently sold a sealed MFSL U2 - Joshua Tree on eBay for $250! Paid for one of my SB3s with the proceeds. I might decide to part with one of my MFSL The Wall sets. Both are used, though and won't bring as much as sealed. I agree that the MFSL sound quality really shines through on the Squeezeboxes. Well good for you, but pity the guy who bought it :) If only he knew that ripping it to an SB may sound even better then the CD. -- agentsmith agentsmith's Profile: http://forums.slimdevices.com/member.php?userid=1838 View this thread: http://forums.slimdevices.com/showthread.php?t=21401 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Re: Linear Power Supply DIY Weekend Project
LOL! Yeah I guess if I can't win at least I'll tie the game. Yes, the thing runs warm. I ran it 24 hours straight with no issues, so for all practical means it has been burned-in. Still, I am not comfortable with something running this warm, so I will hook it up to my SX-1980's switched AC outlet. Like Skunk, for greater piece of mind :-) I guess I could take the cover off and expose the supply to the air. However, the actual power transformer gets hotter than the regulators themselves. This is going to happen with the chassis exposed or enclosed. The trannie reminds me of my 1939 Hallicrafters Sky Buddy radio, same size and same operating temp. That one has a 5 volt winding for the 80 rectifier, coincidentially... I drilled around 15 holes underneath the enclosure. The reason for this was asthetics. I don't have the necessary punching tools for a clean look. They are now hidden from view :-) Another alternative would be to transfer the power supply to a ventilated enclosure like those used by vintage Dynaco gear. I could get a Stereo 80 parts unit and use the case. Nice supply, Skunk!, great job! Regards, crooner -- crooner Squeezebox 3 with DIY Linear Power Supply Lite Audio DAC60 tube DAC Pioneer SX-1980 Vandersteen 2Ce Signature Vandersteen 2W crooner's Profile: http://forums.slimdevices.com/member.php?userid=3379 View this thread: http://forums.slimdevices.com/showthread.php?t=21505 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Re: Linear Power Supply DIY Weekend Project
Skunk, I like the vent holes on your PC supply case. I am thinking about transferring my supply to one of those cases. I can get a PC supply pretty cheap and gut it -- crooner Squeezebox 3 with DIY Linear Power Supply Lite Audio DAC60 tube DAC Pioneer SX-1980 Vandersteen 2Ce Signature Vandersteen 2W crooner's Profile: http://forums.slimdevices.com/member.php?userid=3379 View this thread: http://forums.slimdevices.com/showthread.php?t=21505 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Re: Linear Power Supply DIY Weekend Project
crooner Wrote: Still, I am not comfortable with something running this warm If it's warm enough that it concerns you it's probably worth worrying about. You should get one like mine and keep your same case. The Power One HB3-5/OVP-A 5volt 3amp from Cascade Surplus Electronics [1] for $2.50 is the deal of the century. (or, looks like you can get the whole store for $25,000 [2]). They have only 161 units left, so you better hurry : ) After checking into it at Tylers behest, I found the 3-5 is rated to 50 degrees celcius ambient case temp at max load (70 degrees celcius at 40% load) before failure. I flipped the box upside down to kill ventilation for a few hours today as a test, and it stayed almost as cool, so you'd likely be ok with holes in the back and on bottom of your current case, with a more reliable supply substituted. A thermometer would come in handy for extra peace of mind. Thanks for the compliment. It was meant to be a temporary solution, partially to keep me from having to warn people that it could kill them if they touch it. Mostly to keep ME from touching the damn thing while it was running though. I couldn't resist guaging the temp of the heatsink with my finger, a lot. [1]http://www.cascadesurplus.com/catalog/product_info.php/cPath/99/products_id/856 [2]http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=7593643862 -- Skunk Skunk's Profile: http://forums.slimdevices.com/member.php?userid=2685 View this thread: http://forums.slimdevices.com/showthread.php?t=21505 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Re: Linear Power Supply DIY Weekend Project
Ok, I'm set. I am getting the Power One supply. I'll use my case. You really can't beat the price. My surplus one was $15. Those guys at Gateway ripped me off!!! Thanks for the tip. I guess I'll use my space heater until the new one arrives. I'll post pics of the new gut transplant :-) Skunk: have you measured the voltage on yours? Mine while warm enough to fry bacon, keeps the voltage steady as a rock with minimal variation. It never fluctuates from 5.02 volts! -- crooner Squeezebox 3 with DIY Linear Power Supply Lite Audio DAC60 tube DAC Pioneer SX-1980 Vandersteen 2Ce Signature Vandersteen 2W crooner's Profile: http://forums.slimdevices.com/member.php?userid=3379 View this thread: http://forums.slimdevices.com/showthread.php?t=21505 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Re: Linear Power Supply DIY Weekend Project
Skunk Wrote: If it's warm enough that it concerns you it's probably worth worrying about. You should get one like mine and keep your same case. The Power One HB3-5/OVP-A 5volt 3amp from Cascade Surplus Electronics [1] for $2.50 is the deal of the century. (or, looks like you can get the whole store for $25,000 [2]). They have only 161 units left, so you better hurry : ) After checking into it at Tylers behest, I found the 3-5 is rated to 50 degrees celcius ambient case temp at max load (70 degrees celcius at 40% load) before failure. I flipped the box upside down to kill ventilation for a few hours today as a test, and it stayed almost as cool, so you'd likely be ok with holes in the back and on bottom of your current case, with a more reliable supply substituted. A thermometer would come in handy for extra peace of mind. Thanks for the compliment. It was meant to be a temporary solution, partially to keep me from having to warn people that it could kill them if they touch it. Mostly to keep ME from touching the damn thing while it was running though. I couldn't resist guaging the temp of the heatsink with my finger, a lot. [1]http://www.cascadesurplus.com/catalog/product_info.php/cPath/99/products_id/856 [2]http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=7593643862 Thanks, for posting these links. I bought the 12 V Elpac for my NOS DAC. Now, I just need to figure out how to solder the barrel connector ;) -- ezkcdude ezkcdude's Profile: http://forums.slimdevices.com/member.php?userid=2545 View this thread: http://forums.slimdevices.com/showthread.php?t=21505 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Re: Props To Mobile Fidelity Sound Labs
agentsmith Wrote: Well good for you, but pity the guy who bought it :) If only he knew that ripping it to an SB may sound even better then the CD. Well you have to have the cd to rip it to your SB right? ;) -hal one of the silly people that still buys music... -- hal9000 hal9000's Profile: http://forums.slimdevices.com/member.php?userid=983 View this thread: http://forums.slimdevices.com/showthread.php?t=21401 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Re: SB is killing the SACD format! ;)
Just sold my 999ES today (and 3 sacds)...I'm bummed...now I know what it was like when all of cough mature audio enthusiasts finally abandoned their turn tables... -hal getting cough cough mature cough -- hal9000 hal9000's Profile: http://forums.slimdevices.com/member.php?userid=983 View this thread: http://forums.slimdevices.com/showthread.php?t=21542 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
