SACD itu apa?

[orangpelupa]

sebelumnya sri kalo salah tempat, soalnya ini antara console dan PC (format disc)

ada yag bisa jelasin apa itu SACD ga?
bingung gwa, SACD masuk sebagai daftar media playable di PS3. tapi apa itu SACD?
apa super audio cd? audiocd buat audiophile?

atau malah super animated computer disc? atau apaan sih?

ini format kayaknya ga populer tapi kok ada di playable di PS3

[Napoleonic]

super audio CD
ga populer karena lisensi dan kualitasnya juga ga diatas cd audiophile yg "bener"

[becco]

main di berapa Kbps dan berapa Khz tu sacd ya

[crazygamer_131]

SACD itu kalo ngga salah kependekan dari Super Audio CD...
Tapi dari koleksi CD bokap gw ngga pernah liat nih CD...
Yang ada HDCD(Pada awalnya gw anggap sama, padahal berbeda)
HDCD itu main di frek 44.1 khz..
Kalo ngga salah sih, soalnya bingung juga baca data teknisnya di brosurnya..
Kalo SACD, entahlah, belum ada rekamannya di rumah..

[becco]

klo baca2 di wiki sih begini:
Super Audio CD - Wikipedia, the free encyclopedia

[Radeonator]

daripada SACD wa mendingan HDCD deh.....
ato LPCD sekalian, suaranya lumayan bagus koq, kalau dah pernah denger.


PS: SACD, HDCD, sama LPCD baru kedengaran kalau pake CD player yang harganya 20 jutaan, yang dah pake DAC yang lumayan bagus...

DAC PS3 sucks.....

[orangpelupa]

Originally Posted by Radeonator

DAC PS3 sucks.....

ini panjang, baca aja yang gwa bold

–{“c‰ëˆê‚ÌÂ�uÂ�TÅ*§ƒ‚ƒoÆ’Cƒ‹†™ÃŠÂ�MÂ�v

Though PSX (the DVD recorder was too weak to decode SACD in software, it was expected that the PS3 would be able to. SCE began the development in a relatively earlier stage. But even at the beginning of this year the SACD decoder was 6 times slower than realtime to convert surround DSD sound into PCM.
The manager of the Software Platform division at SCE who were in charge of software codecs and players estimated it'd be impossible to finish if they kept that pace. A developer from the Sony HQ who developed softwares for VAIO PC came to SCE and they assigned the development of an SACD decoder codec to him.
SACD is stored in the DST format (= compressed DSD). DST changes compression methods and parameters every 1/75 seconds, which eats huge processing load when decoding. In the first 2 months the developer optimized it into realtime processing. Then he threw away the old source code and wrote a faster new codec in 3 weeks with the knowledge he had gained. It uses 5 SPEs - 3 SPEs for DST decompression, and 2 SPEs for DSD to PCM conversion.
After that, he debugged it while consulting the professional audio equipments division of Sony that
developed the DSD format itself. It took 6 months.
Then the audio tuning specialist at the audio division of Sony began to use a PS3 to check the sound of the then unreleased HD receiver TA-DA3200ES. He pointed out where to fix in the PS3's digital audio processing to SCE. It was in the early October, and the dynamic range at that time was 140dB which was the initial goal set by another Sony developer who developed DSD. The PS3 firmware version 1.10 is this version with a few updates. The decimation filter of the SACD decoder outputs at 24bit/88.2kHz.
However, last Friday, Honda went to a place for the interview with Ken Kutaragi for some audio/videophile magazine. They brought there an even newer version with a decimation filter at 24bit/176.4kHz. Also, the 64-bit DP internal data of the decimation filter is rounded down to 30-29-bit instead of 24-bit for the output. The dynamic range is over 170dB and the theoretical number reaches 180dB in 30-bit. Honda says its sound was really good even when compared with the sound of the 1.1 version firmware. The Sony developer attributes the goodness to the fact that the software SACD codec of the PS3 processes all data in 64-bit double precision. This new firmware version will be available when the BD remote is released in December.
As for improving CD sound, upsampling is apparently easy by writing a FIR filter. But it is not yet in the PS3 software player as it takes some time to choose an appropriate upsampling function and noise shaping algorithm.

[Napoleonic]

halah bullshit lah sony

[Sparda]

marketing sony dipercaya