NAME

       sf3convert — SoundFont conversion utility

SYNOPSIS

       sf3convert [-cdsxz] [-a ampl] [-p pres] [-S number] [-q qual] infile [outfile]

DESCRIPTION

       The  sf3convert  utility  converts  an SF2 format SoundFont; it can compress it into SF3, encode as C for
       embedding into a binary, or as XML.

       The options are as follows:

       -a ampl
            Set the pre-compression amplification to ampl (default -1.0) dB.

       -c   Output C code.

       -d   Dump presets.

       -p pres
            Append pres to the list of presets.

       -q qual
            Set the Vorbis quality to qual (default 0.3).

       -S number
            Use number as the OGG stream serial number instead of a time-based random one.

       -s   Create a small soundfont (one instrument/preset), pan to 0.

       -x   Output XML.

       -z   Compress the soundfont.

       The -c, -d and -z options are mutually exclusive.  XML output needs -z but does not seem to compress.

CAVEATS

       Raising the quality to 0.6 might be necessary to avoid artifacts; this however increases the size of  the
       generated SF3 by about a third (to about fifteen percent of the SF2 size).

       There is no formal specification of the SF3 format yet.  Differences:

       •   The  samples'  waveform  data is stored using the OGG container format with the Vorbis codec.  (Other
           codecs supporting the OGG container could be used, but the current code uses OGG Vorbis.)

       •   Loop start and end are stored based on the beginning of the corresponding sample, not  based  on  the
           beginning of the smpl chunk.

       •   24-bit mode is disabled.

       •   Sample links are removed.

       Note that this list is incomplete.

Debian                                            March 5, 2018                                    SF3CONVERT(1)