Originally committed as revision 14888 to svn://svn.ffmpeg.org/ffmpeg/trunk
/**
* low-pass Finite Impulse Response filter coefficients.
*
- * Hamming windowed sinc filter with cutoff freq 3/40 of the sampling freq.
+ * Hamming windowed sinc filter with cutoff freq 3/40 of the sampling freq,
+ * the coefficients are scaled by 2^15.
* This array only contains the right half of the filter.
* This filter is likely identical to the one used in G.729, though this
* could not be determined from the original comments with certainity.