On 5/13/07, Brian Willoughby <brianw@sounds.wa.com> wrote:> If we ever reach this 64 GigaSample limit, the fact that FLAC is a > stream should allow multiple FLAC headers to be concatenated in a > single file - although that might be tricky.I believe you can do this with Ogg FLAC. The Ogg container manages the multiple FLAC streams. Theoretically, we'll never see limit issues. -Ivo
2007/5/13, Ivo Emanuel Gon?alves <justivo@gmail.com>:> > On 5/13/07, Brian Willoughby <brianw@sounds.wa.com> wrote: > > If we ever reach this 64 GigaSample limit, the fact that FLAC is a > > stream should allow multiple FLAC headers to be concatenated in a > > single file - although that might be tricky. > > I believe you can do this with Ogg FLAC. The Ogg container manages > the multiple FLAC streams. Theoretically, we'll never see limit > issues.why not? :) 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. Harry -Ivo> _______________________________________________ > Flac mailing list > Flac@xiph.org > http://lists.xiph.org/mailman/listinfo/flac >-------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/flac/attachments/20070513/e4378707/attachment.html
The 2^36 sample limit is nearly 4 days of audio at 192kHz. The number of channels and bits per sample are non-factors. If you have a question regarding format limitations, first read the format specification. The answers you're seeking can be found here: http://flac.sourceforge.net/format.html#metadata_block_streaminfo Harry Sack wrote:> > > 2007/5/13, Ivo Emanuel Gon?alves <justivo@gmail.com > <mailto:justivo@gmail.com>>: > > On 5/13/07, Brian Willoughby <brianw@sounds.wa.com > <mailto:brianw@sounds.wa.com>> wrote: > > If we ever reach this 64 GigaSample limit, the fact that FLAC is a > > stream should allow multiple FLAC headers to be concatenated in a > > single file - although that might be tricky. > > I believe you can do this with Ogg FLAC. The Ogg container manages > the multiple FLAC streams. Theoretically, we'll never see limit > issues. > > > > why not? :) > 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. > > Harry > > -Ivo > _______________________________________________ > Flac mailing list > Flac@xiph.org <mailto:Flac@xiph.org> > http://lists.xiph.org/mailman/listinfo/flac > <http://lists.xiph.org/mailman/listinfo/flac> > > > ------------------------------------------------------------------------ > > _______________________________________________ > Flac mailing list > Flac@xiph.org > http://lists.xiph.org/mailman/listinfo/flac >
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. Brian W.