From bf75c8ec4d0dded188bc7793de6da56c7ff0be1c Mon Sep 17 00:00:00 2001 From: Koen Vos Date: Tue, 13 Dec 2011 14:47:31 -0500 Subject: SILK fixes following last codec WG meeting decoder: - fixed incorrect scaling of filter states for the smallest quantization step sizes - NLSF2A now limits the prediction gain of LPC filters encoder: - increased damping of LTP coefficients in LTP analysis - increased white noise fraction in noise shaping LPC analysis - introduced maximum total prediction gain. Used by Burg's method to exit early if prediction gain is exceeded. This improves packet loss robustness and numerical robustness in Burg's method - Prefiltered signal is now in int32 Q10 domain, from int16 Q0 - Increased max number of iterations in CBR gain control loop from 5 to 6 - Removed useless code from LTP scaling control - Optimization: smarter LPC loop unrolling - Switched default win32 compile mode to be floating-point resampler: - made resampler have constant delay of 0.75 ms; removed delay compensation from silk code. - removed obsolete table entries (~850 Bytes) - increased downsampling filter order from 16 to 18/24/36 (depending on frequency ratio) - reoptimized filter coefficients --- silk/PLC.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'silk/PLC.h') diff --git a/silk/PLC.h b/silk/PLC.h index 5be504f2..6233fa6d 100644 --- a/silk/PLC.h +++ b/silk/PLC.h @@ -25,8 +25,8 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ***********************************************************************/ -#ifndef SILK_PLC_FIX_H -#define SILK_PLC_FIX_H +#ifndef SILK_PLC_H +#define SILK_PLC_H #include "main.h" -- cgit v1.2.1