The SoX code base is covered by a bunch of licences.
SoX as a whole is published under GPL.
The libsox library, which nobody uses, is under LGPL.
Some individual contributors publish their code under a BSD licence,
some of the external libraries use the Apache licence.
Write to all the authors and try to convince them
to change their licence to BSD to simplify everything.
The SoX code base is covered by a bunch of licences.
SoX as a whole is published under GPL. The libsox library, which nobody uses, is under LGPL. Some individual contributors publish their code under a BSD licence, some of the external libraries use the Apache licence.
Write to all the authors and try to convince them to change their licence to BSD to simplify everything.