lossyWAV v0.6.4 RC1 released. Options

[Nick.C]

lossyWAV has now reached the stage where it is appropriate to issue Release Candidate 1 (attached).

CODE

lossyWAV v0.6.4 RC1, Copyright (C) 2007,2008 Nick Currie. Portions (C) 1996
Don Cross. lossyWAV is issued with NO WARRANTY WHATSOEVER and is free software.

Usage   : lossyWAV <input wav file> <options>

Example : lossyWAV musicfile.wav

Quality Options:

-1            highest quality preset, circa 480kbps for 44.1khz, 2ch;
-2            default settings, circa 425kbps for 44.1khz, 2ch;
-3            DAP preset, circa 370kbps for 44.1khz, 2ch.

Standard Options:

-o <folder>   destination folder for the output file(s).
-nts <n>      set noise_threshold_shift to n dB (-48.0dB<=n<=+12.0dB);
              (-ve values reduce bits to remove, +ve values increase).
-snr <n>      set minimum average signal to added noise ratio to n dB;
              (0.0dB<=n<=48.0dB) Increasing value reduces bits to remove.
-force        forcibly over-write output file if it exists; default=off.
-check        check if WAV file has already been processed. default=off;
              errorlevel=16 if already processed, 0 if not.
-correction   write correction file while processing WAV file. default=off;

System Options:

-quiet        significantly reduce screen output.
-nowarn       suppress lossyWAV warnings.

-below        set process priority to below normal.
-low          set process priority to low.

Special thanks:

David Robinson for the method itself and motivation to implement it.
Don Cross for the original Pascal source for the FFT algorithm used.
Horst Albrecht for valuable tuning input and feedback.

Explanation, history and lossless codec settings in the wiki article

Release candidate 1 removed due to (almost) immediate identification of a "new" artefact by Alex B in a -3 processed version of Bruce Springsteen's Livin In The Future.

This post has been edited by Nick.C: Jan 16 2008, 09:21

[halb27]

Thank you, Nick.

[xmixahlx]

any plans for a *nix version or source?

[Nick.C]

any plans for a *nix version or source?

I will certainly include the Delphi source in the release of v1.0.0 (when I've tidied it up sufficiently such that I won't be embarrassed to be associated with it...... ).

I think that there are only a few calls which are specific to Windows (process priority and file attributes from memory), so conversion shouldn't be too awful.

[Nick.C]

Problem sample found for v0.6.4 RC1, quality preset -3, by Alex B: Bruce Springsteen - Livin In The Future;

Further discussion in the development thread in the Upload forum.

This post has been edited by Nick.C: Jan 12 2008, 14:18