Rubat: BASS can move a playing sound; the engine's sound system can't

In #lua-help, A1steaksa asked how to move a sound while it plays without attaching it to an entity, since CSoundPatch has no SetPos and needs an entity. homonovus thought it impossible without an entity. Rubat said the BASS audio system can do it but the engine sound system cannot.

A1steaksa is also decoding old WAVE files by hand; Rubat asked for a sample, saying the only common format he hadn't tested with "my thing" is ADPCM, and A1steaksa's file was IMA ADPCM (format 0x11).