[LAD] Ardour session archiver (Was: new lossless/lossy audio compressor)

Paul Davis paul at linuxaudiosystems.com
Wed Aug 1 21:43:55 UTC 2007

On Wed, 2007-08-01 at 16:42 -0400, Phil Frost wrote:

> I would suspect that many ardour sessions contain WAVs with floats which
> came from a 24 or 16 bit source. I haven't looked at the jack source,
> but it seems to me that the conversion between 32 bit floats in +/- 1
> and 24 bit integers can be lossless. A trivial archiver could do this
> conversion and make the session roughly 75% of the original size.

not if any of them had a gain value or plugin processing that created
even a single sample exceeding the 0dBFS value of 1.0.

people who want to save 25% of their file space (and risk losing >0dBFS
values to clipped ones) with ardour can just go to Options -> Audio File
Format -> Data and select "24 bit".


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