Adding word clock to Lucid AD9624

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SF Audio

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Hello,
I have the Lucid AD/DA9624 boxes. I hear talk of word clocks and wonder if clocking the AD to an external clock will improve the conversion significantly to make it worthwhile.

Anyone done this test?

thanks.
 
It makes a noticeable difference.

The question is is the difference worth the price? Dont forget, the lucid ad9624s onboard clock is no dog. Its better than the one on most soundcards.

If you have a mic or pre that costs over $1000, then it would probably be a good investment for you. If you are using a rode nt1, then a mic will probably make a bigger difference.
 
SF - it completely depends what your recording chain is.

In order to achieve a stable clock rate throughout a chain, every individual digital piece of gear (excluding the D/A of cause) requires its own clock input. Daisy chaining clock, as is the most common method used, simply does not work.
 
I just want to run the external clock into the Lucid A/D. Only two pieces in the chain. So your saying that's not going to make a difference? Previous posts say yes. Maybe you can expound....

I do have nice mic pres and mics, so I'm inclined to think that an external clock could help. Of course, I'd have to see for myself, which I might do.
 
There will be more stuff in the chain... the Lucid outputs AES or S/pdif... your soundcard that is accepting one of these signals will need to have these clocking capabilities also. That way, both pieces are deriving clock signal from the same source. The Delta 1010 has clock input, as well as most of the Motu stuff. If you have a clockable soundcard, then buy a good clock.
 
Actually, no sound card is used. It's just the Lucid into a fostex D1624 hard disk recorder. A simple path, so I'd imagine that I'd get good results with an external clock.
 
Good idea.

Why dont I post two mp3s of the two clocks and see if it makes enough of a difference.

It will be up before ten tonight. hopefully.


Dobro. :) I understand what you mean
 
OK Now we've got a clear picture.

The answer is yes, it would make a considerable difference in audio quality if you would clock both the A/D and the D1624 from a GEN6 clock.
 
the testing of the clocks



I recorded the same demo off my roland jv1010 into the lucid ad9624, only chainging the clock source.. I also threw in the delta 1010 clock for comparison.

I must say that the results I got surprised me incredibly. nuff said
 
Errrrrrrrrrrr...mind sharing which is which Cyan?

Also, need to know which codec you used for the mp3 conversion.

You might try instead of a mp3, using the Monkeys Audio app to compress (http://www.monkeysaudio.com ). It won't compress nearly as much, but, you also will be offering a file that is "lossless" compression instead of a "lossy" compression like mp3.

If this weren't clocking issues, and maybe just a comparison of something else, I would suggest this.

Ed
 
but I cant say which is which just yet .I have to wait for sfaudio to try and see if he can pick out the external clock.

I compressed it at 320 kbps, but I would not mind doing it another way, or even posting a .wav file, except that nowhereradio.com only accepts mp3s.

I used the soundforge 5.0 mp3 codec which I believe is Frauhofer.
 
as I was saying

I was really surprised at the results, even when listening to the 320kbps mp3.

the lucid ad9624 internal clock was clearly the worst sounding of the bunch. Asphyxiating highs, non-detailed mids. I had always thought that the ad9624 had the worst clock and even before getting the genx-6 I had preffered clocking with my delta 1010, but yesterday was the first time I listened to clock comparisons on my ns10ms. I was shocked at first the amount of difference between the two lucids.

The delta 1010 had a much better clock. More defined high frequencies(even more present than the genx6). More space around the highs. The midrange was also slightly better than the lucid ad9624.

The lucid genx6 was the clear winner. It had better midrange definition than either the ad9624 or the delta 1010, the high frequencies are a joy to listen to. Even though they are not quite as present as the delta 1010(almost though) they have something that the delta 1010 does not have- nuance. I could hear every subtle nuance of the performance. I could also hear more detail accross the band than either of the other clocks.


so SFaudio, do yourself a favor and get a genx6, or if you want inputs, a delta 1010. You will not regret it.
 
thanks for doing the test. I'll listen to your mp3's when I get my sound hooked up for my computer.

Where did you get your GEN6 clock? I saw it at mercenary audio for $500.
 
I know that you can get it cheaper than $500. I got mine for $465 as a promotion. I think either gc or marsmusic had them for $450 one time
 
Am I seeing things

www.macmidimusic.com has the lucid genx-6 on sale for $399. thats right $399. THey also had the lowest price on the ad9624. I paid $40 extra for mine(as a deal) and then saw their price the next week.

At that price, the genx6 is more than worth it
 
Cyan,

I find it quite interesting that you can hear that much of a difference with or without the genx6. Are these differences that significant prior to making the mp3,S?

It sounds like there might be some other factors coming into play here.
 
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