ref: a404d4e9d528cf240c806ab51cae2ef5172b8a04
parent: 0da4f238e0771e35dedd12cd5c2c1da6a9374067
author: Benjamin M. Schwartz <bens@alum.mit.edu>
date: Wed Sep 14 10:53:11 EDT 2011
Update text regarding PLC and add a new section on clock drift. The PLC section has been moved from under CELT to the top level and expanded to cover both SILK and CELT. The clock drift text provides some advice and explanation of the new GET_PITCH API.