USB2.0 capture card som støtter PAL 60Hz, anyone?

[SSBM_Tonberry]

Er det noen her som vet om et USB2.0 capture card, eller TV-tuner(med composite-inngang), som støtter PAL 60Hz? Jeg har letet lenge etter et slikt et, men har ikke funnet noe.. De USB2.0-kortene jeg har funnet støtter kun PAL 50Hz...

[baronKanon]

PAL-standarden er vel strengt tatt 50Hz. I Europa har vi 50Hz strømsystem, derfor 50Hz scannefrekvens. I U S and A har de 60Hz strømsystem og Not The Same Color (NTSC), som har ~60 Hz scannefrekvens (29,75 rammer i sekundet, tror jeg).

 

Noen spillkonsoller og videospillere kan av NTSC-materiale og sender ut et pseudo-PAL-signal på 60Hz.

 

Eller les heller i Wikipedia:

Recently manufactured PAL television receivers can typically decode all of these systems except, in some cases, PAL-M and PAL-N. Many of them can also receive Eastern European and Middle Eastern SECAM, though rarely French broadcast SECAM (because France uses the unique positive video modulation), unless they are made for the French market. They will correctly display plain CVBS or S-video SECAM signals. Many can also accept baseband NTSC-M, such as from a VCR or game console, though not usually broadcast NTSC.

 

Many newer Video Cassette recorders (and Region 2 DVD players) sold in Europe can play back NTSC tapes/discs. When operating in this mode most of them don't output a true (625/25) PAL signal but rather a hybrid of PAL and NTSC known as "PAL 60" (or "pseudo PAL") with "60" standing for 60Hz, instead of 50Hz. Some video game consoles also output a signal in this mode. Most newer television sets can display such a signal correctly but some will only do so (if at all) in black and white and/or with flickering/foldover at the bottom of the picture, or picture rolling (it can be noted, however, that many analog-era TV sets can receive the picture by means of adjusting the V-Hold and V-Height knobs — assuming they have them). Very few TV tuner cards or video capture cards will support this mode (a small number can, although software/driver modification is usually required and the manufacturers specs are usually unclear). A "PAL 60" signal is similar to an NTSC (525/30) signal but with a PAL chrominance subcarrier at 4.43 MHz (instead of 3.58) and with the PAL-specific phase alternation of the red colour difference signal between the lines.

Kilde: http://en.wikipedia.org/wiki/PAL

Endret 3. oktober 2007 av baronKanon

[SSBM_Tonberry]

PAL-standarden er vel strengt tatt 50Hz. I Europa har vi 50Hz strømsystem, derfor 50Hz scannefrekvens. I U S and A har de 60Hz strømsystem og Not The Same Color (NTSC), som har ~60 Hz scannefrekvens (29,75 rammer i sekundet, tror jeg).

 

Noen spillkonsoller og videospillere kan av NTSC-materiale og sender ut et pseudo-PAL-signal på 60Hz.

 

Eller les heller i Wikipedia:

Recently manufactured PAL television receivers can typically decode all of these systems except, in some cases, PAL-M and PAL-N. Many of them can also receive Eastern European and Middle Eastern SECAM, though rarely French broadcast SECAM (because France uses the unique positive video modulation), unless they are made for the French market. They will correctly display plain CVBS or S-video SECAM signals. Many can also accept baseband NTSC-M, such as from a VCR or game console, though not usually broadcast NTSC.

 

Many newer Video Cassette recorders (and Region 2 DVD players) sold in Europe can play back NTSC tapes/discs. When operating in this mode most of them don't output a true (625/25) PAL signal but rather a hybrid of PAL and NTSC known as "PAL 60" (or "pseudo PAL") with "60" standing for 60Hz, instead of 50Hz. Some video game consoles also output a signal in this mode. Most newer television sets can display such a signal correctly but some will only do so (if at all) in black and white and/or with flickering/foldover at the bottom of the picture, or picture rolling (it can be noted, however, that many analog-era TV sets can receive the picture by means of adjusting the V-Hold and V-Height knobs — assuming they have them). Very few TV tuner cards or video capture cards will support this mode (a small number can, although software/driver modification is usually required and the manufacturers specs are usually unclear). A "PAL 60" signal is similar to an NTSC (525/30) signal but with a PAL chrominance subcarrier at 4.43 MHz (instead of 3.58) and with the PAL-specific phase alternation of the red colour difference signal between the lines.

Kilde: http://en.wikipedia.org/wiki/PAL

9624408[/snapback]

Det er egentlig ikke svaret på spørsmålet mitt. Jeg vet at standarden på PAL er 50Hz<_<. Men samtidig kan man ikke lese PAL 60Hz ordentlig i NTSC-mode på mange TV-kort, selv om det er mange likheter der. Som regel leses det i svart-hvitt i NTSC-mode. Den eneste tingen som egentlig funker er at bildet vises ordentlig(men som sagt, uten farger).

[baronKanon]

Les det jeg uthevet i sitatet fra Wikipedia. Det besvarer delvis spørsmålet ditt.

[Wattengård]

Tør jeg spørre om grunnen til at du absolutt vil gjøre dette?

 

-C-

[SSBM_Tonberry]

Tør jeg spørre om grunnen til at du absolutt vil gjøre dette?

 

-C-

Ser ut som du tør å spørre, og jeg er ikke redd for å svare!

Planen er at jeg er en gamer, og spillet jeg spiller går i 60Hz. Dermed trenger jeg et TV-kort som kjører PAL 60 for å kunne recorde filmer av spillet.