玩黑膠升級之路

vhs

vhs 發表於 2019-2-21 19:57
小弟將 pagefile.sys（4G) 搬去 Music HDD (Seagate Ironwolf 10T):

人聲行前左，音樂感重左，連貫性多 ...

小弟將 pagefile.sys（4G) 搬去 Music HDD (Seagate Ironwolf 10T)，測試了幾日了, 人聲行前左，音樂感重左，連貫性多左. 毛噪少左。三頻平均，中低較出, 好聽左......

不知何解。

vhs

vhs 發表於 2019-2-23 19:21
Process Lasso.....installed.........

嘩........頂，有提升

vhs

Improve quite a lot.......

jackt

台灣某網站有隻 RAMOS，唔知有冇師兄試過呢？
http://www.myav.com.tw/bbs/forum ... c=&pagenumber=1

vhs

jackt 發表於 2019-2-24 12:58
台灣某網站有隻 RAMOS，唔知有冇師兄試過呢？
http://www.myav.com.tw/bbs/forumdisplay.php?s=0da72f143a7 ...

Thanks for your sharing  


Let me take a look

vhs

jackt 發表於 2019-2-24 12:58
台灣某網站有隻 RAMOS，唔知有冇師兄試過呢？
http://www.myav.com.tw/bbs/forumdisplay.php?s=0da72f143a7 ...

應該就是將 OS 放在 Ram 上運行吧。

小弟認為依家的 Nvme Ssd 已經足夠有突了。

小弟下一步會測試。

另外，小弟早前有個誤解，以為 CPU 越高頻率，作為 Music Server 會不好。其實不是事實的。Bios，OS 及 其他 軟體上的微調 再 配合 高速 的 CPU ， IO process 及 Network configuration 先是皇者。小弟將會砌多一部極高速 Roon Server 再作分享。

vhs

小弟近期將 Roon Server 上 的軟體微調確是對音質有好大提升，應該已掌握到重點在那裡。

jackt

vhs 發表於 2019-2-24 14:22
應該就是將 OS 放在 Ram 上運行吧。

小弟認為依家的 Nvme Ssd 已經足夠有突了。

等分享⋯

vhs

jackt 發表於 2019-2-24 14:40
等分享⋯

你的分享非常精彩


大家多些分享，希望多些人可以享受玩 CAS 的 樂趣

vhs

講番 Hifi 系統：

其實線材已定了下來，是但郁一條，會對整體平衡度有影響.....例如，小弟對 Mono 要用 Shunyata Alpha HC, 前級配 Sigma Analog. 試過 Mono 用 Sigma HC, 聲音會好行。

Vivaldi DAC 要用 Sigma Digital 直入牆身，其餘器材插Qb8 mk ii, 再用 Valhalla 1 PC 將整體分析力推上多一個層次, V1 令到背景有好微的底噪令到聲音 raw 少少。所以之後連 Qkore6 都冇用。Vivaldi Master Clock 用 Sigma Digital. dCS NB 用 Alpha HC.

Vivaldi DAC 去前級再用 AN Sogon II RCA, 令到高音伸廷更好, 聲音高貴些。前級輸入增益再調低，加大 Vivaldi DAC 的輸出至 6V. 聲音較 laid back, 但動態沒有減少, 密度推到頂峯。再配合 dCS NB -to- Vivaldi DAC dual AES/EBU 用原廠 Van Damme 268-482-000 Digitour 線，聲音有厚度, 音樂感增強。鐘線用冇色冇味的 Canare 12G-SDI. 前級去後級用 Nordost 最少味的 Tyr 2 xlr, 單端機用 xlr, 問你死未。

Sa683s

vhs 發表於 2019-2-24 16:26
講番 Hifi 系統：

其實線材已定了下來，是但郁一條，會對整體平衡度有影響.....例如，小弟對 Mono 要用 Sh ...

最後都要上Ben Sir嗰度，打返針Statement 或 Extreme，你先可以止癢

vhs

Sa683s 發表於 2019-2-24 19:15
最後都要上Ben Sir嗰度，打返針Statement 或 Extreme，你先可以止癢

tleonard

Server 嘅速度只要非常勁的話就可以用普通嘅 SMPS 都照樣砌底頂班 SR7 DR 加埋一件未改鐘嘅 Intel NUC：

https://audiophilestyle.com/forums/topic/30376-a-novel-way-to-massively-improve-the-sq-of-computer-audio-streaming/?page=396&tab=comments#comment-886576

Having heard how good the SGM 2015 sounds, I think they have made a good case for this "more is more" approach.

https://audiophilestyle.com/forums/topic/30376-a-novel-way-to-massively-improve-the-sq-of-computer-audio-streaming/?page=402&tab=comments#comment-890785

As I posted previously, when I used my older Celeron NUC with TLS's Dream OS as RoonServer and my newer "Larry" NUC as RoonBridge, transients sounded fast and snappy but the sound signature was thin, even with my SR7 powering both units.  With my Mac Pro as RoonServer, sound was fuller and richer and was easily the better sounding RoonServer machine.  This has led me to buy into Pink Faun's premise that for your RoonServer machine, "more is more."

As good as my Mac Pro sounded as my RoonServer, the HPZ820 workstation running AudioLinux + RoonServer in RAM simply sounded better.  A LOT BETTER and it was one of those OMG moments!  Deeper, richer tone with better dynamics, better bass, better transients, better separation and better articulation.  Bingo!

當然關鍵係部 Server 嘅 OS 要完全放入去 RAM disk，latency 方面會掂好多。

---

Supermicro 好似 SGM Extreme 咁樣行雙 Xeon Scalable 先至能夠打破 latency 嘅世界紀錄：

https://stacresearch.com/attribute/225
https://hk.prnasia.com/story/214553-2.shtml
https://www.supermicro.com/newsroom/pressreleases/2018/press180621_Financial_Application_Improvement.cfm

Jitter 亦都係視乎 clock speed 有幾高：

http://a-teaminsight.com/analysis-inside-supermicros-hyper-speed-hft-server/

* As an example, Supermicro tested network performance processing messages with the UDP and TCP protocols, and determined that over clocking reduced latency by 31%. Moreover, jitter was reduced by 73%.

Intel may be working on a 5.1GHz CPU for customers including NSA
http://www.digitaljournal.com/technology/intel-may-be-working-on-a-5-1ghz-cpu-for-customers-including-nsa/article/455428
https://www.nsa.gov/Resources/Everyone/csfc/Components-List/

始終 Supermicro 嘅其中兩塊底板先至係 latency 嘅王者：

https://www.supermicro.com/products/motherboard/Xeon/C600/X10DRU-XLL.cfm
https://www.supermicro.com/products/motherboard/Xeon/C620/X11DPU-XLL.cfm

關鍵好似話係要 keep 住粒 CPU 嘅 clock speed 有幾高得幾高，唔會用到半路就降速：

https://www.supermicro.com/products/nfo/Hyper-Speed.cfm

With the Low-Latency optimized SKUs, CPU frequency can be maximized indefinitely. Without Hyper-Turbo, most workloads will see a drop in frequency within seconds. (see videos below)

似乎 Dell 同埋 HP 都有佢哋嘅一套：

https://audiophilestyle.com/forums/topic/54933-audiolinux-and-nuc-troubleshooting-and-tuning/?tab=comments#comment-901022

二手嘅 Supermicro 應該平過買部二手嘅（即係 romaz 師兄用緊嘅）Mac Pro Late 2013。

vhs

tleonard 發表於 2019-2-24 20:05
Server 嘅速度只要非常勁的話就可以用普通嘅 SMPS 都照樣砌底頂班 SR7 DR 加埋一件未改鐘嘅 Intel NUC：

h ...

你終於出現了......


等小弟看看你的 link.......


“Server 嘅速度只要非常勁的話就可以用普通嘅 SMPS 都照樣砌底頂班 SR7 DR 加埋一件未改鐘嘅 Intel NUC”..........對呀

vhs

Sa683s 發表於 2019-2-24 19:15
最後都要上Ben Sir嗰度，打返針Statement 或 Extreme，你先可以止癢

可唔可以用醫療劵？

vhs

tleonard 發表於 2019-2-24 20:05
Server 嘅速度只要非常勁的話就可以用普通嘅 SMPS 都照樣砌底頂班 SR7 DR 加埋一件未改鐘嘅 Intel NUC：

h ...

掂呀.......對小弟再硏究下.......

vhs

vhs

vhs 發表於 2019-2-24 20:50

要諗諗點解決噪音問題

vhs

https://www.anandtech.com/show/1 ... kit-for-xeon-w3175x

vhs

8Pack: OrionX2 Dual System Extreme Overclocked PC - Intel Core i9 7980XE & Intel Core i7 9700K  


£32,999.99