Issue 192: fix procedural sound against change in api.
Issue 192: fix procedural sound against change in api.

oktayacikalin/pyglet,oktayacikalin/pyglet,theblacklion/pyglet,theblacklion/pyglet,oktayacikalin/pyglet,mammadori/pyglet,mammadori/pyglet,mammadori/pyglet,theblacklion/pyglet,mammadori/pyglet,theblacklion/pyglet,theblacklion/pyglet,oktayacikalin/pyglet,oktayacikalin/pyglet