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Author Topic: So what IEEE docs/specs does one need to read to make firewire stack for AmigaOS ?  (Read 4648 times)

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Offline Acill

Re: So what IEEE docs/specs does one need to read to make firewire stack for AmigaOS ?
« Reply #14 from previous page: May 18, 2006, 04:09:23 AM »
The direct to DVD cams are a joke and no serious video production work is done on them. you cant edit the video once you record it. It created a closed session DVD. You need to rip the dvd to get the files off, convert the vobs and then use an authoring tool to put them back. Pure crap.

The ipod doesnt use firewire because the new chipset fot the latest versions didnt have it and it was removed to save space and decrease its size further. An iPod doesnt need firewire because once you fill it it only takes very small transfers to  keep it up to date. It was a wast of money for Apple to keep it in.

I will admit in the consumer side of things Firewire isnt that popular, but in the pro side and production side its very much alive.
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Offline motorollin

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SHADES wrote:
USB2 is not as fast as firewire

That's not true. Firewire is 400MBps, USB 2.0 is 480MBps.

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20  FOR C = 1 TO 2
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Offline bloodline

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motorollin wrote:
Quote
SHADES wrote:
USB2 is not as fast as firewire

That's not true. Firewire is 400MBps, USB 2.0 is 480MBps.

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You forget that all transfers on USB must be mediated by the host (i.e. the computer) this causes a significant transaction overhead... then the USB protocol isn't as efficient as Firewire... and finally USB doesn't support Isochronos transfers... which basically means realtime operation, which is requirement in the audio industry, to minimize latency (that said, Gigabit ethernet is actually quite good here, but doesn't provide power).

Lest ye not forget that the Firewire provides MUCH more power via the wire than USB.

Firewire is far from on the way out... it just doesn't have much use for the average user, and it never has.

Since I have so much kit that run off a firewire, I could never buy a Computer/Motherboard without a 6-wire Firewire port.

Offline uncharted

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beller wrote:
The debate on firewire is pretty much done.  While Apple supports them on the computers for legacy purposes,


Wrong.  Macs have been using a mixture of Firewire and USB since the original iMac.  In fact they were one of the first to really support USB in a big way.  Firewire has found it's market in video, there is no need to push it elsewhere.  I'd still take a firewire external harddisk over a USB one any day.

Dropping firewire on iPods is a sensible business decision.  Saves money, removes complexity, and provides a consistent expereince on both platforms.
 

Offline uncharted

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motorollin wrote:
Quote
SHADES wrote:
USB2 is not as fast as firewire

That's not true. Firewire is 400MBps, USB 2.0 is 480MBps.


Guess how fast Firewire 800 is? ;-)
 

Offline platon42

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> then the USB protocol isn't as efficient as Firewire...

I don't know about Firewire (yet), but yes, there is a significant overhead for USB transfers. I'm pretty sure Firewire is more efficient in that case.

> and finally USB doesn't support Isochronos transfers

Sure it does. How you think USB soundcards work? (But you're right, the isochronous transfer is a pain in the ass, try to keep sending audio packets every 1ms!).
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