[Flac] flac filesize limitation
brianw at sounds.wa.com
Sun May 13 18:37:29 PDT 2007
On May 13, 2007, at 05:45, Harry Sack wrote:
> If I encode 192 kHz sound @ 24 bit for some days (WAV file) and I
> encode it to FLAC, I think you can have a very big file and 1.5 TB
> is reached very quickly.
> And in the future audio will even get bigger, when used for HD-DVD
> en Blu-ray media and 5.1 channels is considered the 'minimum'
> setting for surround sound.
Don't forget that the WAV file is going to stop recording at the 4GB
mark (2GB if the recording software is not carefully written). You
would need to record directly to FLAC if you want more than 4GB of
audio, and you'll need an operating system which can handle files
larger than that. The FLAC library allows developers to create
recording software which saves audio data directly to FLAC files
without going first to another, more limited format. You may think
that 1.5 TB is reach very quickly, but in practice there are not any
programs which can support this.
As Jud pointed out, changing from stereo to 5.1 surround has no
effect, because the only limitation of FLAC is the number of samples,
and this does not decrease when more channels are used. WAVE and
AIFF, however, are limited to 4GB total, so more channels or more
bits always means fewer samples, and thus shorter duration recordings.
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