ref: c56f9e470d243b97091187a770146fcdb3f5a22f
parent: 6a4089121199cdf117c097f80a4404c14e158fa2
author: cbagwell <cbagwell>
date: Mon Dec 13 14:31:54 EST 1999
Minor document updates for new filters.
--- a/TODO
+++ b/TODO
@@ -1,14 +1,7 @@
People are encouraged to pick some of these and implement it. Send
all patches to cbagwell@sprynet.com.
- o I've add the most common and public standard FormatTags to the
- .wav file detection. A lot of them should be implemented since
- you can grab the source code from the .au handler and software
- is avaliable from public sources for the rest.
-
- o highpass and lowpass filters don't let you specify the cut
- of freq. Need some improvements to these filters.
- SJB: The old highp.c filter is IMHO broken, need to review that code.
+ o SJB: The old highp.c filter is IMHO broken, need to review that code.
o Create a version of OSS and Sun driver that can play and record from the
same device in duplex.
--- a/sox.1
+++ b/sox.1
@@ -50,10 +50,14 @@
.br
band \fB[ \fI-n \fB] \fIcenter \fB[ \fIwidth\fB ]
.br
+ bandpass \fIfrequency bandwidth\fB
+.br
+ bandreject \fIfrequency bandwidth\fB
+.br
check
.br
chorus \fIgain-in gain out delay decay speed depth
- -s\fB | \fI-t\fB [ \fIdelay decay speed depth -s\fB | -fI-t\fB ]
+ -s\fB | \fI-t\fB [ \fIdelay decay speed depth -s\fB | \fI-t\fB ]
.br
compand \fIattack1,decay1\fB[,\fIattack2,decay2\fB...]
\fIin-dB1,out-dB1\fB[,\fIin-dB2,out-dB2\fB...]
@@ -71,12 +75,16 @@
.br
filter \fB[ \fIlow\fB ]\fI-\fB[ \fIhigh\fB ] [ \fIwindow-len\fB [ \fIbeta\fB ]]
.br
- flanger \fIgain-in gain-out delay decay speed -s\fB | -fI-t\fB
+ flanger \fIgain-in gain-out delay decay speed -s\fB | \fI-t\fB
.br
highp \fIcenter\fB
.br
+ highpass \fIfrequency\fB
+.br
lowp \fIcenter\fB
.br
+ lowpass \fIfrequency\fB
+.br
map
.br
mask
@@ -536,10 +544,10 @@
frequency and settling around it.
See \fBfilter\fR for a bandpass effect with steeper shoulders.
.TP 10
-bandpass
+bandpass \fIfrequency bandwidth\fB
Butterworth bandpass filter. Description coming soon!
.TP 10
-bandreject
+bandreject \fIfrequency bandwidth\fB
Butterworth bandreject filter. Description coming soon!
.TP
chorus \fIgain-in gain-out delay decay speed depth
@@ -639,7 +647,7 @@
The slope of the filter is quite gentle.
See \fBfilter\fR for a highpass effect with sharper cutoff.
.TP 10
-highpass
+highpass \fIfrequency\fB
Butterworth highpass filter. Description comming soon!
.TP 10
lowp \fIcenter
@@ -650,7 +658,7 @@
The slope of the filter is quite gentle.
See \fBfilter\fR for a lowpass effect with sharper cutoff.
.TP 10
-lowpass
+lowpass \fIfrequency\fB
Butterworth lowpass filter. Description coming soon!
.TP 10
map