From c93d500bddf1ce86ba7df1599277d2921287950b Mon Sep 17 00:00:00 2001
From: "B. Watson" <urchlay@slackware.uk>
Date: Mon, 8 Apr 2024 18:56:08 -0400
Subject: soxdial: add --random option.

---
 soxdial | 32 ++++++++++++++++++++++++++------
 1 file changed, 26 insertions(+), 6 deletions(-)

diff --git a/soxdial b/soxdial
index e07b752..6bd23d1 100755
--- a/soxdial
+++ b/soxdial
@@ -69,6 +69,13 @@ Set the bits per sample. Default is 8. The only other choice is 16.
 as signed. If this option is used, it B<must> occur on the command
 line B<before> any dial string.
 
+=item B<-X>, B<--random>
+
+Randomize the timing. Digit length (B<-l>), inter-digit timing
+(B<-d>), and the comma (B<-c>) will vary from 1x to 2x the amount
+specified. This does a pretty good impression of a human dialling a
+number manually.
+
 =item B<-S>, B<--stereo>
 
 Output stereo audio. The left and right channels will contain the same
@@ -125,17 +132,17 @@ dial strings, until the same option is seen again.
 =item B<-l>, B<--length> [ I<sec> | I<millisec>B<ms> ]
 
 Sets the time each digit's tones are played. Default is 0.25
-or 250ms.
+or 250ms. Can be randomized with B<-X>, B<--random>.
 
 =item B<-d> I<sec>, B<--delay> [ I<sec> | I<millisec>B<ms> ]
 
 Sets the delay between consecutive digits. Default is 0.1
-or 100ms.
+or 100ms. Can be randomized with B<-X>, B<--random>.
 
 =item B<-c> I<sec>, B<--comma> [ I<sec> | I<millisec>B<ms> ]
 
 Sets the delay added by commas in the dial strings. Default is 0.5
-or 500ms.
+or 500ms. Can be randomized with B<-X>, B<--random>.
 
 =item B<-x>, B<--extended>
 
@@ -268,6 +275,15 @@ sub letter2number {
 	return $ret;
 }
 
+sub randomize {
+	my $time = shift;
+	return $time unless $random;
+
+	my $newtime = $time * (rand() + 1);
+	warn "$SELF: randomized $time to $newtime.\n" if $verbose;
+	return $newtime;
+}
+
 # sox -n -d synth 0.25 sine 697 sine 1209 sine 770 sine 1477 delay 0 0 .35 .35 remix -
 # ...plays DTMF 1 and 6, for 0.25 sec each, with a 0.10 sec delay between them.
 
@@ -279,7 +295,7 @@ sub add_digit {
 		push @freqs2, 0;
 		push @delays, $time;
 
-		$time += $pausetime;
+		$time += randomize($pausetime);
 	} else {
 		#print "time $time\n";
 		#print "freq1 " . ($freqs{$d}->[0]) . "\n";
@@ -287,10 +303,11 @@ sub add_digit {
 
 		push @freqs1, ($freqs{$d}->[0]);
 		push @freqs2, ($freqs{$d}->[1]);
+
 		push @delays, $time;
 
-		$time += $digittime;
-		$time += $intertime;
+		$time += randomize($digittime);
+		$time += randomize($intertime);
 	}
 	warn "$SELF: added digit '$d', time now $time\n" if $verbose;
 }
@@ -493,6 +510,9 @@ for ($argc = 0; $argc < @ARGV; $argc++) {
 	} elsif(/^--?(?:R|right)$/) {
 		$left = 0;
 		$stereo = $right = 1;
+	} elsif(/^--?(?:X|random)$/) {
+		# sorry I had to use -X for this, -R was already taken.
+		$random = 1;
 	} else {
 		warn "$SELF: start dial string '$_'\n" if $verbose;
 		for (split "", $_) {
-- 
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