DEMO.DESIGN
Frequently Asked Questions
 
îãëàâëåíèå | demo party â ex-ÑÑÑÐ | infused bytes e-mag | íîâîñòè îò ib/news | äðóãèå ïðîåêòû | ïèñüìî | win koi lat

ñëåäóþùèé ôpàãìåíò (2)
MP3 === ------------------------------------------------------------------------------- Byte 0 Byte 1 Byte 2 Byte 3 ---------T--------T--------T--------¬ ¦76543210¦76543210¦76543210¦76543210¦ LTTTTTTTT+TTTTTTTT+TTTTTTTT+TTTTTTTT- ++++++++-++-+-+-¦ +++-+-¦¦ +-+-¦¦+- ¦ ¦ ¦ ¦ ¦ ¦ ¦¦ ¦ ¦ ¦¦L--- 00=Emphasis None ¦ ¦ ¦ ¦ ¦ ¦ ¦¦ ¦ ¦ ¦¦ 01=Emphasis 50/15 microseconds ¦ ¦ ¦ ¦ ¦ ¦ ¦¦ ¦ ¦ ¦¦ 10=Emphasis Dunno ¦ ¦ ¦ ¦ ¦ ¦ ¦¦ ¦ ¦ ¦¦ 11=Emphasis CITT j.17 ¦ ¦ ¦ ¦ ¦ ¦ ¦¦ ¦ ¦ ¦¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦¦ ¦ ¦ ¦L---- 0=Original NO ¦ ¦ ¦ ¦ ¦ ¦ ¦¦ ¦ ¦ ¦ 1=Original YES ¦ ¦ ¦ ¦ ¦ ¦ ¦¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦¦ ¦ ¦ L----- 0=Copyright NO ¦ ¦ ¦ ¦ ¦ ¦ ¦¦ ¦ ¦ 1=Copyright YES ¦ ¦ ¦ ¦ ¦ ¦ ¦¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦¦ ¦ L------- Ñìîòðè òàáëèöó <<Mode extension>> ¦ ¦ ¦ ¦ ¦ ¦ ¦¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦¦ L--------- 00=Stereo ¦ ¦ ¦ ¦ ¦ ¦ ¦¦ 01=Joint stereo ¦ ¦ ¦ ¦ ¦ ¦ ¦¦ 10=Dual channel ¦ ¦ ¦ ¦ ¦ ¦ ¦¦ 11=Single Channel (Mono) ¦ ¦ ¦ ¦ ¦ ¦ ¦¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦L----------- 0=Extension None ¦ ¦ ¦ ¦ ¦ ¦ ¦ 1=Extension Private ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ L------------ 0=Unused bits are filled (padding req.) ¦ ¦ ¦ ¦ ¦ ¦ 1=All bits in frame are used ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ L-------------- Ñìîòðè òàáëèöó <<Sample Rate Index>> ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ L------------------ Ñìîòðè òàáëèöó <<Bitrate>> ¦ ¦ ¦ ¦ ¦ ¦ ¦ L-------------------- 0=Error Protection Bit CRC is ON ¦ ¦ ¦ 1=Error Protection Bit CRC is OFF ¦ ¦ ¦ ¦ ¦ L---------------------- 00=Layer-? ¦ ¦ 01=Layer-3 ¦ ¦ 10=Layer-2 ¦ ¦ 11=Layer-1 ¦ ¦ ¦ L------------------------ 00=MPEG-2.5 (44100 Hz) ¦ 01=MPEG-? ¦ 10=MPEG-2.0 (22050 Hz) ¦ 11=MPEG-1.0 (11025 Hz) ¦ L------------------------------------ Sync Header, âñåãäà 0xFFEx Òàáëèöà SAMPLE RATE ~~~~~~~~~~~~~~~~~~~ MPEG-1 MPEG-2 ã==T=====¬ ã==T=====¬ ·00¦44100· ·00¦22050· ·01¦48000· ·01¦24000· ·10¦32000· ·10¦16000· ·11¦?????· ·11¦?????· <=- îøèáêà "Stream error!" L==¦=====- L==¦=====- Òàáëèöà MODE EXTENSION ~~~~~~~~~~~~~~~~~~~~~~ When encoding with joint stereo, this specifies to which freq. band it is bound. Layer-1,2 Layer-3 ã==T==¬ ã==T==¬ ·00¦ 4· ·00¦ 0· ·01¦ 8· ·01¦ 4· ·10¦12· ·10¦ 8· ·11¦16· ·11¦16· L==¦==- L==¦==- Òàáëèöà BIT RATE (kBit/s) ~~~~~~~~~~~~~~~~~~~~~~~~~ MPEG-1 MPEG-2 ã====T=====T=====T=====¬ ã====T=====T=====T=====¬ · ¦38000¦44100¦48000· · ¦16000¦22050¦24000· ¦====+=====+=====+=====¦ ¦====+=====+=====+=====¦ ·0000¦ 0 ¦ 0 ¦ 0 · ·0000¦ 0 ¦ 0 ¦ 0 · ·0001¦ 32 ¦ 32 ¦ 32 · ·0001¦ 32 ¦ 8 ¦ 8 · ·0010¦ 64 ¦ 48 ¦ 40 · ·0010¦ 48 ¦ 16 ¦ 16 · ·0011¦ 96 ¦ 56 ¦ 48 · ·0011¦ 56 ¦ 24 ¦ 24 · ·0100¦ 128 ¦ 64 ¦ 56 · ·0100¦ 64 ¦ 32 ¦ 32 · ·0101¦ 160 ¦ 80 ¦ 64 · ·0101¦ 80 ¦ 40 ¦ 40 · ·0110¦ 192 ¦ 96 ¦ 80 · ·0110¦ 96 ¦ 48 ¦ 48 · ·0111¦ 224 ¦ 112 ¦ 96 · ·0111¦ 112 ¦ 56 ¦ 56 · ·1000¦ 256 ¦ 128 ¦ 112 · ·1000¦ 128 ¦ 64 ¦ 64 · ·1001¦ 288 ¦ 160 ¦ 128 · ·1001¦ 144 ¦ 80 ¦ 80 · ·1010¦ 320 ¦ 192 ¦ 160 · ·1010¦ 160 ¦ 96 ¦ 96 · ·1011¦ 352 ¦ 224 ¦ 192 · ·1011¦ 176 ¦ 112 ¦ 112 · ·1100¦ 384 ¦ 256 ¦ 224 · ·1100¦ 192 ¦ 128 ¦ 128 · ·1101¦ 416 ¦ 320 ¦ 256 · ·1101¦ 224 ¦ 144 ¦ 144 · ·1110¦ 448 ¦ 384 ¦ 320 · ·1110¦ 256 ¦ 160 ¦ 160 · ·1111¦ ??? ¦ ??? ¦ ??? · ·1111¦ ??? ¦ ??? ¦ ??? · L====¦=====¦=====¦=====- L====¦=====¦=====¦=====- Layer 2/3 FrameSize=144*bps/Sample_Frequency+PaddingBit Stereo Mono MPEG 1.0 32 17 MPEG 2.x 17 09 >---------------------------------------------------------------/ À ýòî îïèñàíèå èíôîpìàöèîííîãî òýãà, òîæå äîëæíî ïpèãîäèòüñÿ: >---------------------------------------------------------------\ Offset 00h db 'TAG' ;ñèãíàòóðà èíôîðìàöèîííîãî òýãà Offset 03h db rep 1Eh (ASCII) ;Hàçâàíèå 30 áàéò ASCII Offset 21h db rep 1Eh (ASCII) ;Èñïîëíèòåëü 30 áàéò ASCII Offset 3Fh db rep 1Eh (ASCII) ;Àëüáîì 30 áàéò ASCII Offset 5Dh db rep 04h (ASCII) ;Ãîä 4 áàéòà ASCII Offset 61h db rep 1Eh (ASCII) ;Êîììåíòàðèé 30 áàéò ASCII Offset 7Fh db ? ;Æàíð Êîäû æàíðîâ 0x00...147 : Blues Classic Rock Country Dance Disco Funk Grunge Hip-Hop Jazz Metal New Age Oldies Other Pop R&B Rap Reggae Rock Techno Industrial Alternative Ska Death Metal Pranks Soundtrack Euro-Techno Ambient Trip-Hop Vocal Jazz+Funk Fusion Trance Classical Instrumental Acid House Game Sound Clip Gospel Noise Alt. Rock Bass Soul Punk Space Meditative Instrumental Pop Instrumental Rock Ethnic Gothic Darkwave Techno-Industrial Electronic Pop-Folk Eurodance Dream Southern Rock Comedy Cult Gangsta Rap Top 40 Christian Rap Pop/Funk Jungle Native American Cabaret New Wave Psychedelic Rave Showtunes Trailer Lo-Fi Tribal Acid Punk Acid Jazz Polka Retro Musical Rock & Roll Hard Rock Folk Folk/Rock National Folk Swing Fast-Fusion Bebob Latin Revival Celtic Bluegrass Avantgarde Gothic Rock Progressive Rock Psychedelic Rock Symphonic Rock Slow Rock Big Band Chorus Easy Listening Acoustic Humour Speech Chanson Opera Chamber Music Sonata Symphony Booty Bass Primus Porn Groove Satire Slow Jam Club Tango Samba Folklore Ballad Power Ballad Rhythmic Soul Freestyle Duet Punk Rock Drum Solo A Cappella Euro-House Dance Hall Goa Drum & Bass Club-House Hardcore Terror Indie BritPop Negerpunk Polsk Punk Beat Christian Gangsta Rap Heavy Metal Black Metal Crossover Contemporary Christian Christian Rock Merengue Salsa Thrash Metal Anime JPop Synthpop 148...254 -- çàðåçåðâèðîâàíû 255 -- îòñóòñòâóåò

Âñåãî 1 ôpàãìåíò(à/îâ) |ïpåäûäóùèé ôpàãìåíò (1)

Åñëè âû õîòèòå äîïîëíèòü FAQ - ïîæàëóéñòà ïèøèòå.

design/collection/some content by Frog,
DEMO DESIGN FAQ (C) Realm Of Illusion 1994-2000,
Ïðè ïåðåïå÷àòêå ìàòåðèàëîâ ýòîé ñòðàíèöû ïîæàëóéñòà ññûëàéòåñü íà èñòî÷íèê: "DEMO.DESIGN FAQ, http://www.enlight.ru/demo/faq".