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[CAS] World Clock & 10M Clock

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發表於 2018-12-20 17:49:15 | 顯示全部樓層 |閱讀模式
C Hing

I have one question. I have a Dcs network bridge and my friend gives me one PPS switch with 10M clock input. Since Dcs network bridge has world clock out and I want to know any method or equipment should i buy in order to use Dcs world clock for this PPS switch eg Mutec 3 USB

Thx
發表於 2018-12-20 17:57:07 | 顯示全部樓層
本帖最後由 Siegfried 於 2018-12-20 18:00 編輯

The WORD (not world) clock out of dCS is for syncing with other dCS devices.  It outputs 44.1kHz or 48kHz square waves.

Unless your PPA gadget can accept 44.1 or 48 kHz signals, there is no way for dCS NB to "drive" the PPA.  You need a separate 10M clock.

On the other hand, dCS devices can only accept 44.1 or 48 kHz word clock signals.  So if you have a 10M clock, you will need a dCS clock (e.g. Vivaldi) or other clock to convert the 10M signal to 44.1/48 word clock signals before it can sync the dCS devices.
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 樓主| 發表於 2018-12-20 18:04:48 | 顯示全部樓層
Thanks C Hing

However, i also want to know, besides Dcs clock , do you know what other clock can covert 10m signal  to 44.1/48 word clock signals
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發表於 2018-12-20 18:19:15 | 顯示全部樓層
tcflex 發表於 2018-12-20 18:04
Thanks C Hing

However, i also want to know, besides Dcs clock , do you know what other clock can co ...

Antelope 10MX can output 10MHz and other frequencies for dCS system. I know a few friends that use 10MX this way.
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發表於 2018-12-20 18:19:24 | 顯示全部樓層
tcflex 發表於 2018-12-20 18:04
Thanks C Hing

However, i also want to know, besides Dcs clock , do you know what other clock can co ...

What for ?
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發表於 2018-12-20 19:45:39 | 顯示全部樓層
Siegfried 發表於 2018-12-20 17:57
The WORD (not world) clock out of dCS is for syncing with other dCS devices.  It outputs 44.1kHz or  ...

Excatly

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發表於 2018-12-21 02:00:04 | 顯示全部樓層
本帖最後由 Siegfried 於 2018-12-21 02:02 編輯
tcflex 發表於 2018-12-20 18:04
Thanks C Hing

However, i also want to know, besides Dcs clock , do you know what other clock can co ...


Such “conversion “ is only for the case of syncing a number of dCS devices. It goes like this: The first thing you need is a 44.1/48kHz word clock like Vivaldi (or other brands like Grimm). You lock the different devices to the master clock.  Next some people choose to add a more stable reference 10M clock to drive the Vivaldi Master Clock to produce better sound. The Vivaldi clock is still needed in the chain to do the conversion job as individual dCS devices (transport, DAC and upsampler) do not accept 10M clock direct. The setup forms a chain of clocks if you like.

If you just have the dCS NB but not other dCS gadgets like the DAC, you don’t need a 44.1/48kHz clock at all.  To me, an important function of a clock is to sync two or more devices. Of course, locking to a more stable external reference may boost performance.  But remember with a good clock you also need good clock cables and other accessories.

Honestly, I do not know much about your “PPS” and I am not sure how much a stable 10M clock can improve its performance.
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發表於 2018-12-21 14:09:34 | 顯示全部樓層
Siegfried 發表於 2018-12-21 02:00
Such “conversion “ is only for the case of syncing a number of dCS devices. It goes like this: T ...

1. dCS Vivaldi DAC + dCS Network Bridge
2. dCS Vivaldi DAC outputs word clock signals to dCS Network Bridge
3. dCS Vivaldi Master Clock outputs word clock signals to dCS Vivaldi DAC and dCS Network Bridge

SQ:

2 is way more better than 1

3 is better than 2

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發表於 2019-2-21 15:10:40 | 顯示全部樓層
Siegfried 發表於 2018-12-21 02:00
Such “conversion “ is only for the case of syncing a number of dCS devices. It goes like this: T ...

"To me, an important function of a clock is to sync two or more devices. "


yes.........................
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發表於 2019-2-21 18:10:01 | 顯示全部樓層
本帖最後由 Siegfried 於 2019-2-21 18:11 編輯
vhs 發表於 2019-2-21 15:10
"To me, an important function of a clock is to sync two or more devices. "


Not sure about the "re-clocking" mode cos' I have never used it.  I think it depends on how well the PLL of the DAC could track the clocking of the incoming signal, and whether the PLL is happy to follow that clock or its internal clock?

Have once (inadvertently) turned Vivaldi's clock to "Audio" mode (i.e. clocking depends on incoming signal) while leaving the Grimm clock driving W20 only [without routing through the UPS].  Really could hear a difference compared with the sound of Grimm mastering both W20 and Vivaldi DAC.  The latter is MUCH better!
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發表於 2019-2-21 18:17:38 | 顯示全部樓層
Siegfried 發表於 2019-2-21 18:10
Not sure about the "re-clocking" mode cos' I have never used it.  I think it depends on how well t ...

Sounds interesting.
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發表於 2019-2-21 18:21:29 | 顯示全部樓層
Siegfried 發表於 2019-2-21 18:10
Not sure about the "re-clocking" mode cos' I have never used it.  I think it depends on how well t ...


Grimm is better than Vivaldi Clock ?
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發表於 2019-2-21 19:18:25 | 顯示全部樓層
vhs 發表於 2019-2-21 18:21
Grimm is better than Vivaldi Clock ?

唔奇吖。如玩鈡也只會考慮Grimm。
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發表於 2019-2-21 19:28:22 | 顯示全部樓層
dekiller 發表於 2019-2-21 19:18
唔奇吖。如玩鈡也只會考慮Grimm。

等小弟看看 Grimm 資料先
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發表於 2019-2-21 19:39:21 | 顯示全部樓層
Any Ching had compared clocks from Grimm vs DCS vs ESO. Seems each one has its own supporter.
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發表於 2019-2-21 19:42:29 | 顯示全部樓層
sclegend 發表於 2019-2-21 19:39
Any Ching had compared clocks from Grimm vs DCS vs ESO. Seems each one has its own supporter.

I m using Vivaldi Master clock ... hvnt compared with other clocks yet....
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發表於 2019-2-21 20:08:24 | 顯示全部樓層
sclegend 發表於 2019-2-21 19:39
Any Ching had compared clocks from Grimm vs DCS vs ESO. Seems each one has its own supporter.

this would be an interesting comparison some Ching here shared that Grimm clock seem doesn't match well with Eso devices in terms of sounding
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發表於 2019-2-21 20:09:59 | 顯示全部樓層
vhs 發表於 2019-2-21 19:42
I m using Vivaldi Master clock ... hvnt compared with other clocks yet....

Grimm don't offer master clock. So, no need to compare.
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發表於 2019-2-21 20:14:45 | 顯示全部樓層
vhs 發表於 2019-2-21 15:10
"To me, an important function of a clock is to sync two or more devices. "

This not true.  The word clock is used to sync different devices, usually used in sound recording/mixing industry.  That's why 44.1 and 48.

The 10M is a reference clock to calibrate/tune other clocks.  Different usage.

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發表於 2019-2-21 20:18:20 | 顯示全部樓層
vhs Ching: Just curious, if I remember correctly, DCS DAC has 3 clock inputs, do you need to connect all 3 of them to function?
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