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PostPosted: Wed Feb 08, 2006 8:05 am 
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Hi,

Does Podner use the Quicktime encoding engine or does it use the x264 etc?

I think QT produces better looking files.

Many thanks.

Nubben


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PostPosted: Wed Feb 08, 2006 9:33 am 
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Podner encodes using QuickTime's MPEG-4 and H.264 components.

We agree that QuickTime can produce better-looking files than say, what we see with tools that use ffmpeg and x264. Overall, QuickTime's output tends to be sharper and its color more closely matches the original source.

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PostPosted: Wed Feb 08, 2006 9:37 am 
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Thanks for your quick reply Keith!

Since QT uses 7.0.4 and 1-pass encoding these days (with "Convert to iPod") option, I was wondering if Podner will enable me to go back to "old" QT 7.0.3-style of encoding which used 2-pass?

Also, what encoding specs does a 2-pass or multipass encoding contain in terms of bitrate (both video and sound) etc?

Many thanks again.

Nubben


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PostPosted: Wed Feb 08, 2006 9:53 am 
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Podner does indeed provide iPod-compatible H.264 MultiPass, almost identical to the "old" QuickTime 7.0.3. Podner's H.264 MultiPass, Best Quality, matches QuickTime 7.0.3 by specifying a data rate of 600Kbps. Custom settings that include MultiPass will most likely not be iPod-compatible.

Below is a list of Podner's data rates and audio specs.

iPod, MPEG-4, 320x240:

Good: 512Kbps
Better: 768Kbps
Best: 1Mbps


iPod, MPEG-4, 480x480:

Good: 1Mbps
Better: 1.5Mbps
Best: 2Mbps


iPod, H.264, including MultiPass:

Good: 320Kbps
Better: 480Kbps
Best: 600Kbps


Podcast, H.264, including Multipass:

Good: 160Kbps
Better: 196Kbps
Best: 256Kbps


Podner specifies 16-bit, stereo, 44.1KHz AAC at 128Kbps for all iPod Encoding presets. It specifies the following for the Podcast presets:

Good: 16-bit, mono, 44.1KHz AAC at 64Kbps
Better: 16-bit, mono, 44.1KHz AAC at 96Kbps
Best: 16-bit, stereo, 44.1KHz AAC at 128Kbps

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Keith Gugliotto
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Splasm Software
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PostPosted: Wed Feb 08, 2006 9:59 am 
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Brilliant Keith! I shall buy this evening then!

Thanks again for great customer support!

Regards,
Nubben


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