Computer audiofil

[ioni]

Cu scuzele de rigoare,chiar imi verific intotdeauna msg pe care le scriu,dar cand l am scris pe asta eram grabit si n am mai stat sa l corectez.mea culpa.

[Mariutim]

AK,este prescurtarea de la Asahi Kasei un producator de cipuri dac,exact ca si Burr-Brown,Analog devices,etc.Sunt playere high end fabricate cu aceste cipuri dac.Dar deviem de la topic,deschide un alt topic daca vrei informatii despre dacuri,sunt multi care se pricep,inclusiv Bibi .Pe viitor cand vrei sa afli ce cip DA contine un dac sau un player foloseste lincul de mai jos.

http://www.dutchaudioclassics.nl/the_complete_d_a_dac_converter_list/#M

[bibi]

cand vrei sa afli ce cip DA contine un dac sau un player foloseste lincul de mai jos.

http://www.dutchaudioclassics.nl/the_complete_d_a_dac_converter_list/#M

 

Este foarte bun linkul, dar văd că nu au listat playerele și DAC-urile care nu folosesc chipuri de tip clasic pentru conversie ( de ex. nu sunt listate cele cu FPGA-uri sau cu R2R )

[ioni]

va multumesc mult.cu respect.nic

[Mariutim]

Bibi,am vazut si asta,poate nu cred ca intereseaza pe toata lumea.Uita-te la lista lui Vasil,,e mai completa ceva.

http://vasiltech.nm.ru/CD-Player-DAC-Transport.htm

[bibi]

N-a fost o critică Lista aia e o bună sursă de informații

[hersorin]

Niste pareri interesante .

http://www.computeraudiophile.com/f10-music-servers/full-size-desktops-vs-laptops-6-system-shootout-questions-21697/

[Mariutim]

Foarte interesant.Nu trebuiesc avioane de procesoare,important este ca si compul sa fie dead silent.Nimic inauntru care vibreaza sau se invarte.Daca se poate o sursa custom cu componente de calitate si un cablu de alimentare bun.

[bogdanozaurus]

Meridian Media Core 200, costa doar putin peste 10000 ron.

http://www.meridian-audio.info/viewphoto.php?compid=446

Nu pare i7

[Mariutim]

Nu e I7.E un Atom sau un Celeron.Si placa de baza pare low cost.Sunt placi de baza cu proc incorporat cu conzi de calitate si suport nativ pentru Win 8 care sta mai bine la capitolul redare audio.

http://www.pcgarage.ro/placi-de-baza/gigabyte/ga-j1800n-d2h/

[Mariutim]

Trei adversari foarte periculosi pentru Meridian media core.

">https://www.youtube.com/watch?v=luCV6fWkn80

">https://www.youtube.com/watch?v=v2nTsQqAJQ4

">https://www.youtube.com/watch?v=8FmzDHLOLdU

La toate trei mai trebuiesc cumparate separat memorii si SSD-uri ,dar pretul ramane imbatabil.

[ioni]

bine punctat Mariantm,sunt perfecte pt muzica

[ioni]

am un amic care are asa ceva,doar ca este generatie sa i spun mai veche,muzica,file,poze,fara probleme,superb,

[bogdanozaurus]

Trei adversari foarte periculosi pentru Meridian media core.

">https://www.youtube.com/watch?v=8FmzDHLOLdU

La toate trei mai trebuiesc cumparate separat memorii si SSD-uri ,dar pretul ramane imbatabil.

 

Te corectez. Ultimul, ASUS VIVO Pc (pe care il am si eu si pe care il folosesc doar in acest scop) vine cu memorie ( 2 sau 4 GB functie de model, upgradabil la 16 GB ) si cu un HDD normal de 3,5" la 500 GB

Al meu este varianta cu Celeron dual core la 1500 GHz si a costat 999 ron

[Mariutim]

Bogdan,ma refeream mai mult la SSD.Asusul are chiar si adaptor pentru SSD inclus .

[hersorin]

Foarte interesant.Nu trebuiesc avioane de procesoare

Nu stiu de ce dar eu am inteles ca cele mai bune rezultate s-au obtinut cu cele mai puternice procesoare .

[ioni]

da,ai si aici dreptate,un procesor puternic,deci generatie noua,clar avand multe din ele fc avansate,nu le enumar aici dau rezultate excelente pe o placa de baza cu sound onboard,sincer si psihic,cand am un desktop tare,paraca si muzica suna mai bine,si eu am obs acelasi lucru...acum fiecare cu parerea lui.

[Mariutim]

hersorin,daca citesti atent ,threadul este foarte stufos,tipul de la inceput ,dupa multe discutii a aflat de existenta computerului din linkul urmator.

C.A.P.S. Version 2.0

Requirements

The requirements for version 2.0 are identical to the original Pocket Server. The requirements are both objective and subjective. When necessary I'll do my best to explain how or why my component selections meet these criteria.

Absolutely silent.

Capable of great sound.

Great looking.

No moving parts.

Fairly inexpensive.

No legacy components.

Easy to operate.

Directly or

Remotely

Easy to assemble / install

Assembly / installation by one's self or

Assembly / installation by local computer shop, son, daughter, neighbor, or friend.

Small size.

Low power consumption.

Low heat.

Accept an add-in card for audio or additional capabilities. Hardware & Software must accept appropriate add-in cards.

Play 16/44.1, 24/44.1, 24/88.2, 24/96, 24/176.4, and 24/192 all bit perfect.

http://www.computeraudiophile.com/content/405-computer-audiophile-pocket-server-caps-v20/

[hersorin]

Cred ca facem o confuzie undeva .

Threadul incepe cam asa

Over the past couple of weeks I have been experimenting with multiple OS, desktop and laptop systems, and the audio quality of each. My quest is to build (and stop fussing with, *mostly*) a music server that I can also watch video on.

Here are my observations after testing 6 different computers and configurations.

First, the audio equipment: Stax Lambda Professional Headphones with SRM-1/MK-2 Amp + Peachtree Audio DAC.

[ So, the fidelity and detail of what I am hearing is of good quality. ]

Computers tested:

1> Full size desktop: AMD Phenom II x4 @3.7 GHz, 8 MB RAM, SSD and HDD (both tested), running W-7, no special tweaking (OS loaded with all sorts of garbage)

2> Full size desktop: AMD Phenom II x4 @3.2 GHZ, 8 MB RAM, SSD, Server 2012 + Audiophile Optimizer + recommended BIOS tweaks (fresh install)

3> Laptop: IBM Thinkpad i7 x2 @2.7GHz, 8MB RAM, HDD, Windows 7, no special tweaking

4> Laptop: Sony Vaio Pentium Dual Core @2.7 HGz, 2 MB Ram, Windows 7, no special tweaking (fresh install)

5> Laptop: IBM Thinkpad x61 Core 2 @1.8 GHz, 2 MB Ram, Windows Vista, no special tweaking (fresh install)

6> Laptop: Dell Inspiron Duo, dual core Atom N550 @ 1.5GHz, 2MB RAM, Windows 8.1, BIOS tweaked (fresh install)

The Winner: System #1 --My trusty self-built workstation. (surprise?). This is a 2 year old install of Windows 7 with dozens of programs, anti-virus, background services, and noisy-as-hell fans. Based on reading this forum, this makes no sense. W7 is supposed to sound worse than W8/2012, and background services and fans are supposed to degrade the sound.

Second place: System #2 - self-build, fresh install of Server 2012 + AO, on similar hardware to #1. I thought 2012+AO was supposed to kick the A$$ of W7 running multiple services???

Third place: Tie between everything else. Why doesn't the high-spec Thinkpad i7 sound better than the lower spec machines?

Data measurements: none. my ears. I don't have the faintest idea how to measure the bits.

JRiver player used

Audio observations:

System #1 (un-tweaked AMD 3.7 quad core workstation, Win 7) had the most clarity and liveliness of any rig tested. Fine details and nuances of the music very apparent and crisp. Good soundstage.

System #2 (AMD 3.2 quad core workstation, W2012 + AO + tweaking). Very nice sound, more mellow and very slightly larger soundstage, but less detailed and 'fun' than #1. It took me hours to set everything up and the sound is close to as good as #1, but the given effort put into it it seems largely wasted since the workstation sounded better with no work at all.

Laptop Systems #3-6: Not a lot of differences. Generally, these sounded warmer, less detailed and a bit more compressed.

Questions, frustrations, and "quest":

Frankly, I'm surprised and a bit frustrated that my general purpose workstation loaded with programs and services sounded the best. This leads me to the unscientific conclusion that random combinations of hardware might matter just as much as the OS and all of the tweaking.

I am now very interested in putting together as powerful a silent system as I can, because I want to save power and have less noise. I don't plan to do rips or editing on the media PC, just listen to music and be able to occasionally stream video via HDMI to my TV.

Can I achieve good sound out of an i7 Haswell mini-system running fanless? This seems to be akin to using a laptop (sans fan)? I don't mind building such a system if won't be disappointed.

Nu asa se deschide linkul meu ?

[bogdanozaurus]

da,ai si aici dreptate,un procesor puternic,deci generatie noua,clar avand multe din ele fc avansate,nu le enumar aici dau rezultate excelente pe o placa de baza cu sound onboard,sincer si psihic,cand am un desktop tare,paraca si muzica suna mai bine,si eu am obs acelasi lucru...acum fiecare cu parerea lui.

 

Aici era vorba de computer audiofil. Ce legature are subiectul cu sunetul onboard ???? Si care sint acele fc avansate (pe care nu le enumeri) care dau rezultatele excelente ? Enumera-le sa ne luminam si noi

[hersorin]

Poate cineva doreste sa testeze asa ceva http://www.highend-audiopc.com/optimizer.html

[hersorin]

Daca tot nu vrea nimeni sa explice de ce trebuie un PC mai rasarit , vin eu cu parerea mea .

Dupa un amplu studiu pe net am luat i7 deoarece dau citatul "

A typical Windows operating system (Windows 7, Windows 8, etc.) has about 50 to 100 processes and about 500 to 1000 or more threads all running at the same time. The CPU is involved in every single thread and process and, unfortunately, all of this processing must take place in real-time, resulting in jitter. By dramatically reducing the number of processes and threads run by your CPU, your music server will greatly minimize noise and jitter, allowing for a far more accurate and natural sound.

Daca nu credeti deschideti managerul de activitati si vedeti in jur de 100 procese chiar daca nu faceti nimic .

De ce am bagat memorie RAM . Foobarul meu e setat in asa fel incit daca doresc sa ascult o melodie sau un cd pina in 1gb el este incarcat total in ram . Odata ce este incarcat in RAM pot sterge fisierul definitiv si el va cinta in continuare .

[bogdanozaurus]

Sorin, ai dreptate cu procesele alea insa doar in situatia unui calculator cu windows si care este folosit si in alte scopuri. Daca dedic un calculator doar pentru muzica si rulez un linux customizat pe el nu am nevoie de i7 si 8GB de ram.

Pentru un Win PC all arounder, cu cit mai multa putere de calcul cu atit mai bine, mai ales ca trebuie si un antivirus bun in fundal, pentru MAC avem Audirvana Plus care inainte de a porni muzica face o optimizare a sistemului, isi creaza niste buffere de memorie si apoi incepe si cinta, deci tot niste chestii de astea de bun simt ca sa zic asa. Uite ce zic baietii:

Full Memory Play

File loading, processing, converting to DAC native format are all done before playback to minimize any possible interference

SysOptimizer

SysOptimizer can be configured to stop the OS X background services potentially interfering with sound quality, and give to Audirvana Plus the extreme priority during playback to ensure the maximum signal streaming precision.

Am avut pina acum citeva luni un desktop puternic, acum am MAC si acel mini PC dedicat si pot spune ca ultimul mi se pare cea mai buna solutie pentru mine.

Editat Septembrie 12, 2014 de Vizitator

[Mariutim]

Ce citesc eu aici in linc,este ca folosind Windows Media server,acesta opreste cam 90 la suta din procese lasand procesorul liber sa se ocupe de redarea de audio.Au dat un exemplu pentru I7 insa asta e valabil pentru orice procesor cu doua nuclee decent.

Media serverul Meridian din linc nu are I7 ci un dual core mic cu racire pasiva.Nu are nici macar SSD.

http://www.meridian-audio.info/viewphoto.php?compid=446

Si arata ca si placa din linc,cu un Atom cu doa nuclee,o placa de baza de la intel.

http://www.intel.com/content/www/us/en/desktops/desktop-board-d2500cc-360view-demo-video.html

Editat Septembrie 12, 2014 de Vizitator

[ioni]

@bogdanozaurus,termenul onboard in subiectul nostrum vine de la placa de sunet,aia mica si pitica,care scartiaie,este pe placa de baza,deci onboard,...a ca sunetul il bagi in dac si acesta face minuni,,,da,dupa parerea mea daca ai un dac adevarat,...deci daca placa de baza este de generatie veche si sunetul va fi mai ,,paradit,, mai slab calitativ,ma indoiesc ca un audiofil pe care nu il intereseaza prea mult partea hardware,va cumpara o placa de baza performanta,pe un proc de generatie matusalem.probabil va lua una low profile,un microatx ceva,cat despre fc avansate ale unui processor de top,nu stau sa luminez pe nimeni,se gasesc date pe net....atentie sa nu confundam aici exemplele date de mariantm....sunt minipc uri foarte bune pt ceea ce fac.