DIY 自作派同好同學會 |
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回覆 (271): HDTT - Open reel
King, it sounds great !! I got excited.  
 
Vash
09-02-28
18:48:33
回覆 (265): HDTT - Open reel
limage,  
 
dont' worry about me being busy in this lo fan. i'm at the same time building your 27D.^-^
drwkng
09-02-28
18:14:26
回覆 (264): HDTT - Open reel
let me update the status. we have just borrowed a revox PR99 MKIII tape deck from alan so and some tapes as well. i will try to set up the rig and perform some test. later cp will provide me with some tapes with cd/lp version to do the transfer.  
drwkng
09-02-28
18:12:33
回覆 (270): To. smltommy
咁有多一隻的話我預埋你架啦。  
 
Vash
09-02-28
17:57:10
回覆 (269): To. smltommy
me too..多謝 vash 哥努心努力,幫我地找的好 CD....
accphoto
09-02-28
09:56:30
回覆 (268): To. smltommy
My dear Vash,  
 
 
Sure, I want that! Thank you so so so so much.........  
 
I will be back next week end......
smltommy
09-02-27
16:48:17
回覆 (267): To. smltommy
Dear Tommy,  
 
I found the standard CD version of this Carmina Burana price below HKD80, do you wanna have one ?  
 
 
^__^  
 
Vash
09-02-27
16:09:04
回覆 (266): HDTT - Open reel
Mytek is a very good ADDA! Would you consider other software that runs at a higher internal resolution? From memory, Adobe audition is not 64bit internally?  
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no idea about the internal representation of audition during post processing. well, i don't want to do too much post processing so i don't worry too much.
drwkng
09-02-26
18:46:02
回覆 (265): HDTT - Open reel
Mytek is a very good ADDA! Would you consider other software that runs at a higher internal resolution? From memory, Adobe audition is not 64bit internally?
ackcheng
09-02-26
18:36:07
回覆 (264): HDTT - Open reel
King, just igore my idiot message.  
 
Your mastering equipment is great enough !!  
 
^__^  
Vash
09-02-26
10:53:42
回覆 (263): HDTT - Open reel
若用部 ADC 做o左 A to D 後才用數碼入電腦去除 hiss 會否好過用 soundcard 做 A to D 呢?  
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don't understand what you meant. my plan is to use my mytek to do the ad and through firewire directly store them in my pc harddisk. once it is there we can do some post processing like hiss reduction. however using something like Lynx sound card ad should produce comparable result.  
o.k here is my mastering equipment  
 
1. Mytek 8x192 adda with firewire interface  
2. adobe audition software  
3. KSR SnS interconnect  
4. KSR power conditioner  
5. KSR power cord  
6. Gnostic Technology 27D Preamplifier  
7. KSR 2A3 Power amplifier  
8. monitoring speaker: Lamhorn speaker and Rymthik Subwoofers  
9 KSR room treatment  
10. tape playback system (cp, add your thingie here)  
 
^-^  
 
drwkng
09-02-26
10:51:28
回覆 (262): HDTT - Open reel
Let's get the ball rolling and discuss the arrangements during Sat-Lunch, if you can make it this Saturday.  
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i can't make it this saturday. but i'm easy. we could actually start doing it next saturday.
drwkng
09-02-26
10:37:09
回覆 (262): HDTT - Open reel
若用部 ADC 做o左 A to D 後才用數碼入電腦去除 hiss 會否好過用 soundcard 做 A to D 呢?  
 
Vash
09-02-26
10:05:55
回覆 (261): HDTT - Open reel
 
 
Let's get the ball rolling and discuss the arrangements during Sat-Lunch, if you can make it this Saturday.  
 
 
limage
09-02-26
10:00:48
回覆 (260): HDTT - Open reel
i have tested many pc ad/da cards. they don't have same performance for all sampling frequencies. some that are designed for high sampling rate have better performance at 96 or above. while some though can work at high sampling rate in fact don't do too well. so it not conclusive to say which format is better.  
 
we can certainly have the different versions but i would advise against downsampling them. so let's have 16/44, 24/44, 24/96 and may be 24/192. i have the audition software so i will use that to do the processing. i think we should minimise any post processing. if the hiss is serious, just a hiss reduction. that is.
drwkng
09-02-26
09:46:58
回覆 (259): HDTT - Open reel
Agree, at least my Weiss DAC2 can serves for 24/192.....  
 
^__^  
Vash
09-02-26
01:08:03
回覆 (258): HDTT - Open reel
 
 
Well, since we have the master tapes from CP, it does not hurt to produce a variety of samples ranging from the standard CD up to 24/192k. That makes a good opportunity for us to find out with our own ears what merits there are to go ever higher up the sampling scale.  
 
The one that turns out to be the closest to the original tape should be the right one that we have to content ourselves with, given the present level of technology available.  
 
 
limage
09-02-26
00:14:53
回覆 (259): HDTT - Open reel
you won't get 140 db  
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i mean 144db
drwkng
09-02-26
00:09:28
回覆 (258): HDTT - Open reel
Why not make both 24/96, 24/192 and 16/44 for our study ? As least, 24/96 bears 120dB dynamic range while 16/44 is 96dB........ right ?  
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i don't think it will help if you at the end of the day only listen to 16/44. however i would keep 24/44 and 24/96 for myself though since i can play back 24bit file^-^  
theoretically 24 bit gives you 144 db while 16 gives you 96 but realistically you won't get 140 db. my mytek only spec at 120db but it does not say at what sampling frequency though.
drwkng
09-02-26
00:06:59
回覆 (258): HDTT - Open reel
see if this link do a little help  
http://www.independent.co.uk/arts-entertainment/music/features/publishing-rights-sold-for-a-song-428055.html  
8po
09-02-26
00:03:07
回覆 (257): HDTT - Open reel
King,  
 
Why not make both 24/96, 24/192 and 16/44 for our study ? As least, 24/96 bears 120dB dynamic range while 16/44 is 96dB........ right ?  
 
Vash
09-02-25
23:56:58
回覆 (256): HDTT - Open reel
vash,  
 
read the FAQ on that site. it will tell something on copyright  
 
regarding the lo fan of master tape, i am thinking of just 16/44.1 to start with. don't have to mess around with any subsequent software. many don't have the right hardware to play back anything else.
drwkng
09-02-25
23:10:25
回覆 (255): HDTT - Open reel
limage sir,  
 
HDTT use Weiss Saracon for sampling rate conversion for 24/96 to 16/44.  
 
U can see the mastering gears they use from below link, USD20 for a trial on their HQCD is not a bad idea, am I right ?  
 
If cp's Belafonte is the first, I'd give a vote to make 24/192.  
 
^__^  
 
http://www.highdeftapetransfers.com/page/13/mastering-equipment
Vash
09-02-25
22:46:19
回覆 (254): DIY 自作派同好同學會
版權法不是只有五十年期的嗎?  
 
有無法律界既朋友可以解解?  
 
BTW., cp + limage + drwkng > master analog lo fan, support !!  
 
 
Vash
09-02-25
22:36:19
回覆 (253): DIY 自作派同好同學會
Yes why not then!  
 
Let's begin with Belafonte, a recording that is clearly superior from the tapes. How many tapes do you have, CP?  
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then should i go and take mastering course?  
according to the site, most of the tapes have their copyright lapsed. i just wonder how they can claim any legal right to their copy since the original are in public domain.
drwkng
09-02-25
16:57:26
回覆 (252): DIY 自作派同好同學會
 
 
Yes why not then!  
 
Let's begin with Belafonte, a recording that is clearly superior from the tapes. How many tapes do you have, CP?  
 
limage
09-02-25
16:53:59
回覆 (251): DIY 自作派同好同學會
Not a bad idea since you've already got the a/d ready. How about transferring from original reel tapes via open reel machine to digital? I can bring along the tape m/c and the tapes.  
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why not. that is even easier.
drwkng
09-02-25
16:22:27
回覆 (250): DIY 自作派同好同學會
 
 
how about we create our own Lo Fan from LP  
__________________________________________  
 
Not a bad idea since you've already got the a/d ready. How about transferring from original reel tapes via open reel machine to digital? I can bring along the tape m/c and the tapes.  
 
 
cpsjj
09-02-25
16:17:59
回覆 (249): DIY 自作派同好同學會
limage,  
 
do you like the labels? if not forget it. these are legal Lo Fan from analogue tape. $20 a piece is a bit deep for me. how about we create our own Lo Fan from LP?
drwkng
09-02-25
16:11:44
回覆 (248): DIY 自作派同好同學會
 
 
I just had a thorough study of the High Definition Tape Transfer site that Vash recommended to me a while ago.  
 
Since I do not have yet a dedicated computer with SSD and the necessary software to handle the Flac files, nor the DAC to play the 24/96 music contents, it would be quite a hassle to me if I buy downloads from them too hastily. As such, I am more curious to know whether or not the High Quality CDs which they make from open reels are truly the best as they have claimed. The price of these HQCD is about US $20 a piece, more than reasonable I think if they live up their promises.  
 
The link for details on HQCD:  
 
 
 
 
http://www.highdeftapetransfers.com/page/12/hqcd.template
limage
09-02-25
15:55:47
回覆 (258): Telfon composite tube sockets
 
 
These sockets are far better than most others provided the tubes don’t run too hot, otherwise you’ll have the hassle of tightening the grippers every month or two.  
 
 
limage
09-02-23
21:55:37
回覆 (260): Back to school - Kent Poon's Prof. course for audiophiles
 
 
I have in fact been using the Teflon sockets for over 3 years. Since the early runs were not made to be used directly on PCBs, a little work has to be done to make them suitable for the job.  
 
limage
09-02-23
21:54:14
回覆 (259): Back to school - Kent Poon's Prof. course for audiophiles
I am using CMC Bakelite Socket only and they are good while 9 pins only good for PCB mounting.
8po
09-02-23
17:43:59
回覆 (258): Back to school - Kent Poon's Prof. course for audiophiles
昨日很高興與多位慕名已久既 DIYer 於下午實踐課堂前在寒舍聚首一堂,交流心得並指導及聽下小弟既最新設定…  
 
rcwy,借相一用 ^__^  
 
Vash
09-02-23
12:42:38
回覆 (257): Telfon composite tube sockets
 
Thank everyone for the info and link.  
 
The description states that:  
Also, these sockets have a unique 2 pc. pin configuration...the main contact is silver-plated brass...however, each contact sleeve also contains a "crown spring" made of silver-plated beryllium copper, which has far greater long-term elasticity. Tube pin to tube socket connectivity will remain very tight/snug, even after a large number of insertions.  
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It is this "crown spring" that has attracted the attention of Dr. King and myself. We are interested in tube sockets, not because of the material used for its base, be it Teflon or ceramic, but individual pin sockets that have the ability to retain their gripping power under high temperature as well as over hundreds of insertions.  
 
It's a pity that no further details have been given. Perhaps I need to order a few samples just to find out whether or not they are lemons in disguise.  
 
 
 
limage
09-02-23
10:25:41
回覆 (256): Telfon composite tube sockets
I am using these telfon socket for quite a while. They sound better than the conventional socket and of course more expensive too. There is a trick on using these socket. The insertion of the tube is retained by a nuts "螺 絲母" underneath. You need to tight the nuts and solder it too to make the proper position. From a sound point of view, they do provide quite a quiet background.
accphoto
09-02-23
09:50:46
回覆 (255): Telfon composite tube sockets
USD$10-19 here, but dunno the quality difference  
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the problem with all teflon tube sockets is that they can't stand heat. teflon even coldflow in room temperature..  
and whatever they tell, the pin of that particular tube sockets is just cheap brass. and after a number of insertion, it will not retain its shape.
drwkng
09-02-23
09:39:28
回覆 (254): Telfon composite tube sockets
 
 
USD$10-19 here, but dunno the quality difference
http://www.diyhifisupply.com/?q=catalog/46/vacuumtubesockets
Hercules
09-02-23
00:57:02
回覆 (253): Telfon composite tube sockets
Maybe this link is more convenience for limage........  
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the problem is that there is no description of the sockets. i can only find that under the newsletter.
drwkng
09-02-23
00:45:39
回覆 (252): Telfon composite tube sockets
Maybe this link is more convenience for limage........  
 
^__^
http://www.partsconnexion.com/catalog/tubesockets.html
Vash
09-02-23
00:21:30