ref: 55f8f1eaab58a32d29a804559b45b50ab10070b6
parent: beb75f8713d9b867201c6525d41c767eb89ed049
author: cbagwell <cbagwell>
date: Fri Dec 3 11:12:48 EST 1999
Left out some credits.
--- a/Changelog
+++ b/Changelog
@@ -32,6 +32,10 @@
o New effect 'filter' which is a high-quality DSP lowpass/
highpass/bandpass filter using windowed sinc function
methods, like polyphase and resample.
+ o Jan Paul Schmidt added new low/high/bandpass and bandlimit
+ filters to sox. They have much better results then the old
+ versions of low/high/bandpass. The new effects are all
+ Butterworth filters.
o New data file type supported, -sl or extension .sl for
signed 32-bit integers. Some simplification of the raw.c
source.