Showing posts with label #speakerexpert. Show all posts
Showing posts with label #speakerexpert. Show all posts

Friday, September 11, 2015

PANASONIC TO RELAUNCH TECHNICS TURNTABLE

panasonic-to-relaunch-technics-turntables
Having discontinued the Technics turntable series in 2010, the news represents something of a U-turn for the company. As demand for vinyl has soared in recent years so have calls for the Technics to be relaunched, with a petition collecting over 25,000 signatures demanding its return.

Friday, March 6, 2015

New Ultra HD Blu-ray format confirmed for 4K video

   Nu a fost o dezbatere majora cu privire la dacă vom ajunge vreodată să avem un format de disc video 4K. Dar, așa cum ne plac materiale video de înaltă calitate suntem încântați să vedem că va exista o modalitate de a obține uimitoarele filme in format ultra HD. Oricat de bun ar fi Netflix, cele două nu sunt comparabile în ceea ce priveste calitatea.

   Pe de-o parte, discul Blu-ray Ultra HD vor avea un bitrate de până la 100Mbps și va avea două dimensiuni, 66GB și 100GB - primul este dual-layer, al doilea are trei straturi. Acest lucru ar putea avea, de asemenea, un impact asupra consolelor de jocuri, cum ar fi Xbox One și PS4, care ar putea primi un upgrade de hardware pentru a profita de acest nou format.

   Sunt mai multe de spus despre formatul UHD, in sensul ca are mai multe avantaje. Aceasta crește adâncimea in biți de la 8 la 10 biți, care ar trebui să permită disparitia unei imagini fara efecte și cam urâta care apar uneori în jurul evidențierilor. In ceea ce priveste cat de bine se vede un disc Blu-ray, au existat unele compromisuri făcute, pe care noul format le va rectifica. Va fi, in consecinta, o gamă de culori mult mai largă, de care vor profita ecrane moderne ale televizoarelor, care pot afișa mult mai multe culori decât poate oferi în prezent discul Blu-ray .

   Cel mai important este însă trecerea către HDR. Dacă v-ați impotmolit vreodată în fotografie este posibil să fi auzit de aceasta tehnica de prelucrare. În esență, aceasta oferă imagini care au o mulțime de detalii, atât în ​​zonele luminoase cat și in cele întunecate. Camere moderne au o sensibilitate aproape la fel de mare ca ochii noștri, asa că vom incepe să vedem o mulțime de detalii în filme, ca niciodata pana acum. Aceasta este de fapt una dintre cele mai importante progrese facute in calitatea imaginii televizoarelor, așa că va deveni foarte interesant. Poate mai mult decât creșterea de rezoluție.

   Nu ne place prea mult numele Ultra HD Blu-ray, deși, sunt o mulțime de probleme pentru noi in a scrie despre asta, plus sa e prea lung. Poate că Blu-ray+ sau ceva asemănător ar fi fost o modalitate mai bună de a fi denumit. Indiferent de numele folosit, formatul este o idee bună și ar trebui să începem să vedem playere - asa ca cel pe care Panasonic l-a anunțat la CES - aparand în acest an. Există deja destul de multe filme in format 4K ce așteaptã sã fie puse pe disc, așa că ar trebui să vedem o selecție la lansare de foarte bună calitate.   

sursa: appy-geek.com





Does vinyl really sound better? -- An engineer explains (eng)


   Even Steve Jobs listened to vinyl.
   The late Apple CEO, whose iTunes Store revolutionized the music business for the online era, "listened to vinyl" at home, Neil Young said in 2012. Young, who's now hawking his $399 high-definition PonoPlayer, has a stake in the mythologizing of studio-grade sound, but he's not the only believer. As compressed MP3 files and digital streaming services from YouTube to Pandora have become the norm for music listening, vinyl sales have skyrocketed from under a million in 2007 to potentially more than 8 million this year in the U.S. alone — in part thanks to the thinking that vinyl just sounds better.



   Is that true? Kind of. Sometimes. It depends. The vinyl LP is a format based on technology that hasn't evolved much over the last six decades: in some ways, it's the audio equivalent of driving a Ford Pilot. Sonically, vinyl has both strengths and weaknesses compared to digital files, just as movie buffs have argued over the pros and cons of 35mm film against 4K digital. To break down what vinyl can really do, I spoke with Adam Gonsalves of Portland's Telegraph Mastering. Gonsalves has worked with artists ranging from Sufjan Stevens to Steve Aoki and proudly owns a '60s Scully lathe, the ruby-tipped device that cuts lacquer discs for plating and vinyl reproduction.
   Before weighing vinyl's, ahem, good and bad sides, it helps to know how records are made. In brief, an engineer such as Gonsalves receives mixed recordings from the studio (or even a band's laptop) to master and cut to a lacquer, which is mailed off to be impressed upon the sets of metal stampers which will press hundreds or thousands of PVC pellets into vinyl LPs. Not every mastering engineering cuts lacquers — lathes haven't been made in decades and are in short supply, which keeps owners like Gonsalves busy — and Gonsalves is often sent digital files to work from rather than the all-analog tape one might expect.

The good
   
   "Vinyl is the only consumer playback format we have that's fully analog and fully lossless," Gonsalves said. "You just need a decent turntable with a decent needle on it and you're going to enjoy a full-fidelity listening experience. It's a little bit more idiot-proof and a little bit less technical."
The analog format allows for artists to transport their music from magnetic tape to LP to your speakers or headphones without the complications of digital conversion. This, ideally, is the closest one can get to what the artist intended — if the artist recorded on tape and sent the reels over to an engineer like Gonsalves to cut a lacquer master from. But whether its origins are digital or analog (more on this later), a vinyl disc should have more musical information than an MP3 file — so it should be an improvement on streaming sites such as YouTube or SoundCloud, especially on a good system.
   Fighting the loudness wars: Digital music engineering, particularly for radio-bound music, is often marred by a volume arms race, which leads to fatiguing, hyper-compressed songs that squish out the dynamics and textures that give recordings their depth and vitality. Vinyl's volume is dependent on the length of its sides and depth of its grooves, which means an album mastered specifically for the format may have more room to breathe than its strained digital counterpart. The longer an album, the quieter it gets: Gonsalves played me Interpol's lengthy debut album and a 12-inch Billy Idol single, and the decibel difference — without any distortion creeping in — was remarkable. 
   That warm vinyl sound: "I think this is what people like about it: it pins very closely to the way that human beings hear music organically," Gonsalves said. "It's very mid-range-y and very warm," a sound that flatters the fuzzy guitars of rock 'n' roll.

The bad

   "All-analog" doesn't always happen: Many modern vinyl records are produced from digital masters, either recordings made natively in software such as Pro Tools or converted from tape before being sent along for mass production. When I visited Gonsalves, he was working on My Brightest Diamond's new album — from his computer. But analog-to-digital conversion (and vice versa) has come along quite a bit since the birth of the CD, and Gonsalves says he asks for high-definition, 24-bit files to master from if digital’s the option.
Still, as artists and labels hop on the vinyl trend, some new vinyl releases may be mastered from CD-quality audio, not the high-resolution formats audiophiles and folks like Neil Young adore. Is a CD-quality album going to sound more accurate on vinyl than a CD? Nope. But it will sound more vinyl-y, if that's your preference.
   "There's basically nothing you can do to make an hour-long album on one record sound good," Gonsalves said. Vinyl's capable of a lot, but only if the grooves are wide enough for the needle to track them properly. A longer album means skinnier grooves, a quieter sound and more noise. Likewise, the ear-rattling sounds of dubstep weren't really meant for your turntable. "If you had taken Skrillex into Motown Studios, they would've said, ‘It's uncuttable!’" Gonsalves said, thanks to the strain the high-energy music would put on the needle’s journey.
   Vinyl can struggle with highs and lows: High-pitched frequencies (drum cymbals, hi-hats) and sibilance (think “s” sounds) can cause the ugly crackle of distortion, while deep bass panned between the left and right channels can knock around the needle. “It should basically be in mono," Gonsalves said. Otherwise, "that's a hard path for a needle to trace."
   The beginning of an album side sounds better than the end: As the album's circumference shrinks toward the middle, the needle speed changes and it can’t follow every millimeter of the groove. If the song that closes side A or B is a complicated one — say, one with a busy harmonica solo — it may well sound less than hi-fi. That's why those double-LPs are worth the extra flipping.
   Surface noise: "The warm sound of the vinyl, that's a form of noise that you get from dealing with the lacquer material and having it go through this manufacturing process," Gonsalves said. The vinyl format can generate other issues: crackles and pops, records that skip and the whine of a needle against the LP, all problems that the CD advertised itself on solving decades ago. But for many, these sounds are just part of the vinyl experience, adding to the charm of a format that takes some extra effort — and often rewards it.
— David Greenwal


sursa:  oregonlive.com

Wednesday, March 4, 2015

How They Did It: Professional-Grade Screening Room (eng)



       How They Did It: Professional-Grade Screening Room


   This homeowner, who works for a major Hollywood studio, wanted a room where he could view Digital Cinema Packages (DCPs) and dailies during evenings and weekends without traveling to his studio offices. The room also needed to serve as a home theater for the purpose of viewing TV, Apple TV, Xbox, and Blu-ray content.

   CEDIA member Bradford Wells + Associates, based in Los Angeles, created a pro-quality screening room that earned the Level V Bronze Technical Design award for Home Theater in CEDIA’s 2014 Electronic Lifestyles® Awards competition.



HT L5 Bronze Screen


Technical Highlights:


   The whole room was fully sound-isolated using resilient construction and vibration-damped sheet rock layers. It has a 12-ft.-6-in.-wide Cinemascope screen with electronic horizontal side screen masking and an acoustically transparent screen. 

   The room is fully DCI (Digital Cinema Initiatives) compliant, including a DCI-compliant projector from NEC and a cinema media server from Doremi. The projector is a small-footprint digital cinema projector housed in a custom hush box enclosure at the back of the room. 



HT L5 Bronze Seating


   The room's dimensional challenges called for a speaker with the least possible depth. It was decided that a planar-type front-channel and surround-channel speaker was the obvious pick. At the same time, the planar-type speakers had to have studio-grade power handling capacity and a flat frequency response. 

   The custom "hush box" that housed the projector also had to meet required special ventilation and noise-isolation parameters consistent with the low noise floor of the room. Bradford Wells + Associates engineered a sophisticated audio system, including Wisdom Audio speakers and quad JL Audio subwoofers. 

   The equipment racks housing the digital cinema server, room EQ, eight-channel surround preamp, power amplifiers, source equipment, and control equipment were all tucked away neatly next door in an air-tight, air-conditioned, acoustically controlled closet with studio-grade tech power.



HT L5 Bronze Screen 2


Challenges:


   The project began as a remodel of an existing media room. The original space was small and cramped, so Bradford Wells + Associates worked with the theater consultant and the builder to thoroughly redesign the structure of the room. The front half of the floor was dropped 18” into the crawl space to make room for a riser scheme, and the front wall was pushed back into what was originally a ventilation closet. 

   Equipment had to be fit in without taking away any more room length, width, and height than was absolutely necessary. To compensate, all room equipment and acoustical materials had to be dimensionally scrutinized and made to work. From the acoustical absorbers and diffusers, to the HVAC system ducting, to the audio and video equipment, everything had to fall within the room's established dimensional, electrical, and acoustical spec.



HT L5 Bronze Seating 2


   One of the challenges of the electronics package was the integration of all the consumer gear, including Blu-ray, satellite, and more, with the digital cinema equipment. The 7.1 DCI audio signal was run through a multi-channel D-to-A converter and then into the 7.1 channel analog input of the Marantz decoder. The team had to implement bass management externally using an Ashly 8x16 digital audio processor. The Ashly unit also ran the Wisdom bi-amplified speaker crossovers and full room correction equalizations.



HT L5 Bronze Rack


Calibration:


   The NEC NC900C Digital Cinema Projector was calibrated with a Photo Research PR-655 Spectroradiometer and a JETI Specbos 1211 Reference Spectroradiometer. The projector was calibrated to meet DCI specification (white point x=0.314, y=03.351, Y=14 fL, DCI color gamut, Gamma 2.6) for playback of DCPs. Two separate MCGD (Measured Color Gamut Data) files were crested to accommodate the two necessary color correction for both 2D and 3D projection through active shutter glasses.    For consumer HD source material, the projector was calibrated to meet REC 709 requirements (x=0.313, y=0329, Y=14 fL, REC 709 color gamut, Gamma 2.2). 

   The room was carefully measured using both impulse response and FFT analysis with 4-microphone spatial averaging. All corrections were meticulously implemented in a digital high-resolution equalizer. The team also listened to the results and fine-tuned the whole system with an eye toward 2-channel audiophile-grade performance as well as a high-impact and dynamic multi-channel cinematic experience. The calibration team comprised veterans of THX, Technicolor, and the Academy of Motion Picture Arts & Sciences.



HT L5 Bronze UI

sursa: cedia.net/

Tuesday, March 3, 2015

BREAKING RECORDS: HERE ARE THE FIVE BEST-SELLING VINYL RELEASES OF 2014 (eng)

   The vinyl resurgence continued through 2014, the Wall Street Journal notes in a fascinating piece yesterday, and like most things, there’s good news and bad news. On the positive, nearly eight million vinyl records were bought in the United States over the past 12 months, a 49 percent increase in sales from the previous year. The bad? Vinyl accounts for only 2 percent of the market share, and as the WSJ notes, most vinyl factories can’t keep up with the demand. One plant, United in Tennessee, accounts for 90 percent of all vinyl production.

   So who dominated the turntable charts in 2014? Some usual suspects.
   Jack White’s sophomore album Lazaretto was our country’s best-seller, moving 75,700 vinyl units — making it the best-selling domestic vinyl release since Pearl Jam issued Vitalogy in 1994.
   Rounding out the Top 3 are Arctic Monkeys’ AM with 40,600 (a release that surpassed a million in sales in the United Kingdom, according to the NME), and the Black Keys’ Turn Blue, which sold 28,300. Lana Del Rey’s debutBorn to Die, and Beck’s Morning Phase rounded out the Top 5.
Here’s a closer look…
1. Jack White, Lazaretto: 75,700
jack-white-lazaretto
2. Arctic Monkeys, AM: 40,600
Arctic AM
3. The Black Keys, Turn Blue: 28,300
Black Keys
4. Lana Del Rey, Born to Die: 27,200
DR Born
5. Beck, Morning Phase: 25,200
Beck

Friday, February 27, 2015

HOME THEATER STYLINGS (eng)

   From monochromatic to dramatic lighting to ultra modern, home theater styling for some, can be just as important as the actual specs of your products. The layout, design lighting and color schemes are all things to consider when compiling your home theater piece by piece. We found several different looks  recently that all give very different feels to your living space and home entertainment, but are all equally unique and invited.
   How do you feel about monochromatic decor? By selecting all tech components and decor in minimalistic shades such as grey, white and silver, this living space definitely feels very sleek and modern.  

   Matching all your home entertainment items to the color scheme in your living room might seem a bit extreme, but these pictures prove that it can be a stylish choice especially given the simple colors involved.





   What about a moody and dramatic lighting setup, perfect for movie watching? The overhead lights, the dark walls and the glossy floors and fixtures make the room feel like a classic movie theater, don’t you think?





   Lastly, for the ultimate in home theater styling, and for the ultimate budget, you can recreate your favorite movie within your decor. Here are a few examples:





Thursday, February 26, 2015

Samsung prezinta reteaua 5G! Vom descarca un film HD intr-o secunda

telefon-5g

   Dincolo de lansarea Samsung Galaxy S6 şi S6 Edge, sud-coreenii vor prezenta la Mobile World Congress de la Barcelona, pe 1 martie, o noua tehnologie care ne va permite, pe viitor, sa descarcam date de pe internet la viteze 5G, cu 7.55Gbps.

   Dezvoltata in parteneriat cu operatorul sud-coreean SK Telecom, tehnologia “3D beamforming” va permite retelei sa furnizeze datele intr-o noua matrice, folosindu-se de trei emitatoare diferite, peste frecventa de 6Ghz, fapt care va creste spectaculos viteza de transfer de date.
5g
   Samsung si SK Telecom vor sa lanseze reteaua 5G in Coreea de Sud pana in 2020, relatează PCWorld
   Potrivit expertilor, citati de GadgetReport.ro,  noua retea 5G va declansa o adevarata revolutie in materie de transmisie de date.
Viteza incredibilă de transfer, de până la 10 GB pe secundă, va permite dezvoltarea la scară largă a serviciilor de streaming în format 4K, astfel că nu este exclus ca, în următorii ani, posturile TV să îşi treacă emisia pe internet.
   Tehnologia 5G va permite, de asemenea, dezvoltarea maşinilor inteligente, a electrocasnicelor conectate la web şi, în general, a transferului de date la un nivel fără precedent, astfel încât accesul la informaţie va deveni instantaneu, indiferent de unde îl accesezi.
   In graficul alaturat, prezentat de GSM Arena, puteti vedea modul in care a evoluat tehnologia de-a lungul anilor.
GadgetReport.ro relata, anterior, ca la nivel international, competitia pentru dezvoltarea de comunicatii mobile de ultima generatie devine din ce in ce mai acerba.
   Japonia lucrează deja la această tehnologie ce va fi lansată, cel mai probabil, cu ocazia Jocurilor Olimpice din 2020.
NTT Docomo, KDDI si SoftBank, trei dintre cele mai importante companii de telecomunicaţii din Japonia au dezvoltat  un grup de lucru în care au cooptat Panasonic, Sharp si Fujitsu, scopul fiind acela de a găsi cele mai bune soluţii pentru ca 5G să ajungă cât mai repede pe piaţă.
   La randul ei, China a instituit in februarie 2012 grupul “IMT-2020 (5G) Promotion”, condus de guvern, pentru cercetare in sectorul 5G.




sursa: gadgetreport.ro

Wednesday, February 25, 2015

Vrei ce-i mai bun? Ai ce-i mai bun!


   You wanted the best, you’ve got the best! The hottest brands in the world!

   In ultimii 14 ani de cand s-a infiintat firma, am avut un scop : sa oferim cele mai bune solutii la cel mai bun pret! Astazi putem afirma cu bucurie ca firmele reprezentate de noi sunt printre cele mai bune in lume, majoritatea avand un pret mult sub clasa din care fac parte.
   Produsele acestea au multumit clientii nostrii prin fiabilitate si calitate. Iata despre cine este vorba:

   GoldenEar – boxe high end la preturi accesibile. Sunt revelatia ultimelor targuri internationale, prezentarile lor fiind declarate cele mai bune de majoritatea criticilor (avand si pretul o fractiune din pretul altor sisteme similare). Fiecare produs a luat cel putin un premiu Best Of… la lansare, iar difuzoarele de tavan sunt considerate singurele din lume ce pot reda sunetul surround fara ca sa sunetul sa fie perceput ca venind de sus.



   
   Fortress Seating – fotolii home cinema – singura alegere a tuturor starurilor din USA. Toate produsele folosesc cele mai bune materiale, fiecare produs se face la comanda exact dupa dorinta clientului. De aceea sunt considerate cele mai bune din lume!



   ATI Amplifier Technologies – module de amplificare. Fabrica este de fapt un furnizor de produse OEM fabricate in USA pentru cele mai mari nume din industrie. Ultimul model seria AT6000 Reference a fost declarat amplificatorului anului de mai multe reviste prestigioase. Cel mai bun sunet vine la un sfert din pretul produselor similare.



   QMotion – rulouri si draperii fara fir. Singurele draperii cu baterii din lume precum si cele mai silentioase, cea mai mare garantie si durata de viata a bateriilor pentru rulourile electrice cu baterii. O solutie foarte practica ce te scuteste de constructori care iti fac santuri pentru cabluri noi prin casa, QMotion doar se aplica pe fereastra si se pornesc.



   Screen Innovations – ecrane pentru videoproiectie. Cele mai bune ecrane din lume in rejectarea luminii ambientale, astfel seria Black Diamond si Slate pot fi instalate acum si in spatii in care inainte era exclusa folosirea unui videoproiector.



   Amina – difuzoare invizibile. Considerata cea mai buna solutie din lume pentru difuzoare de acest gen, Amina au realizat difuzoare care se ingroapa in perete si reusesc sa redea o calitate deosebita a sunetului.



   D-Box – sistem de miscare a scaunului pentru integrare in film/jocuri. Cel mai bun sistem din lume ce face ca miscarea din imaginile unui film sau jos sa fie transmisa fotoliului printr-un sistem avansat de pistoane care ridica sau coboara scaunul. Filmele si jocurile sunt codate special de catre producator astfel ca miscarea sa fie cat mai reala.



   Videotree – televizoare rezistente la umiditate. Fabricate integral in Anglia, aceste televizoare se remarca prin design, fiabilitate si calitate deosebita, fiind solutiile alese de clienti de top din intreaga lume. Cea mai buna varianta pentru baie, bucatarie, spa si chiar in exterior.



   Steinway Lyngdorf – audio high-end. Un nume celebru cu performante audio la superlativ completate cu design clasic ce emana un aer regal. Procesorul de sunet este considerat cel mai bun din lume, reusind sa faca orice camera sa sune ca intr-un home theater foarte bine tratat acustic.



   Panamorph – lentile anamorfice. Cele mai bune lentile pentru o proiectie lata, 21:9 asa cum majoritatea regizorilor au conceput si realizat filmele. Sunt singura alegere in majoritatea salilor home cinema care se respecta.



   TruAudio – sisteme audio rezidential. O firma mai putin cunoscuta, dar foarte prezenta pe piata americana, TruAudio s-a diferentiat de multe alte firme pentru ca au refuzat ca produsele lor sa fie vandute pe internet in favoarea instalarii lor corecte prin firme de specialitate si astfel pastrarea calitatii.
Au solutii premiate pentru multiroom, media room, home theater, sunet de exterior si multe accesorii.



   Control4 – sistem smarthome. Unul din pionierii automatizarii accesibile pentru toata lumea si cu multe brevete si produse revolutionare, Control4 este in continuare printre cele mai bune si complete sisteme de pe piata, majoritatea spunand ca ofera cea mai buna performanta pentru pretul cerut.



   Cloud Electronics – echipamente public adress. Fabricate majoritar in UK, Cloud au solutii pentru distributia sunetului in spatii comerciale, avand o fiabilitate deosebita (5 ani garantie), sunet foarte bun, solutii practice de transmitere si control si o multitudine de setari accesibile instalatorului, dar cu acces limitat utilizatorului reducand astfel erorile in utilizare. Folosit in hoteluri, mall-uri si alte spatii de top. 



   Coda Audio – sisteme audio de putere. Firma fiica a BMS (producator ale carui difuzoare de top se regasesc in cele mai bune boxe din lume) Coda Audio a crescut de la an la an, ultimele linii de produse fiind considerate printre cele mai bune din lume, mentinandu-si un pret mult mai mic comparativ cu alte produse de la acelasi nivel.



   Heatmiser – termostate. Una dintre cele mai vechi firme din UK, Heatmiser a castigat anul trecut titlul de cel mai bun termostat pentru incalzirea in pardoseala pentru ultima serie NEO, serie care este si controlabila total de pe internet.

   
   Fulcrum Acoustic – boxe de putere. Nascuta din dorinta de perfectiune a unuia dintre cei mai buni designeri de boxe din lume, Fulcrum a reusit in cativa ani sa fie singura optiune pentru cele mai mari cluburi din USA si sa fie incadrata in TOP5 cele mai bune boxe de sonorizare din lume.




sursa: AVDesign