Skip site navigation (1)Skip section navigation (2)
Date:      Thu, 2 Jul 2009 10:02:10 +0000 (UTC)
From:      Ariff Abdullah <ariff@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org
Subject:   svn commit: r195283 - head/sys/tools/sound
Message-ID:  <200907021002.n62A2A7t040106@svn.freebsd.org>

next in thread | raw e-mail | index | archive | help
Author: ariff
Date: Thu Jul  2 10:02:10 2009
New Revision: 195283
URL: http://svn.freebsd.org/changeset/base/195283

Log:
  Slightly increase amount of bandwidth of resampling filter for
  feeder_rate_quality=3. This have the benefit of reducing aliasing
  artifacts due to alias masking.
  
  Spectrogram analysis:
  
   o Old preset (100:36:0.90)
  	http://people.freebsd.org/~ariff/z_comparison/z_q3_old.png
  
   o New preset (100:36:0.92):
  	http://people.freebsd.org/~ariff/z_comparison/z_q3_new.png
  
  Approved by:	re (kib)

Modified:
  head/sys/tools/sound/feeder_rate_mkfilter.awk

Modified: head/sys/tools/sound/feeder_rate_mkfilter.awk
==============================================================================
--- head/sys/tools/sound/feeder_rate_mkfilter.awk	Thu Jul  2 09:50:13 2009	(r195282)
+++ head/sys/tools/sound/feeder_rate_mkfilter.awk	Thu Jul  2 10:02:10 2009	(r195283)
@@ -592,7 +592,7 @@ BEGIN {
 	if (ARGC < 2) {
 		ARGC = 1;
 		ARGV[ARGC++] = "100:8:0.85";
-		ARGV[ARGC++] = "100:36:0.90";
+		ARGV[ARGC++] = "100:36:0.92";
 		ARGV[ARGC++] = "100:164:0.97";
 		#ARGV[ARGC++] = "100:8";
 		#ARGV[ARGC++] = "100:16";



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200907021002.n62A2A7t040106>