From 86a6bb43dec14a63f722818f72c855807832fef4 Mon Sep 17 00:00:00 2001
From: "B. Watson" <urchlay@slackware.uk>
Date: Wed, 10 Apr 2024 16:21:18 -0400
Subject: soxdial: do not play anything for a dial string if there are no valid
 digits.

---
 soxdial | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/soxdial b/soxdial
index e445d55..7726c8a 100755
--- a/soxdial
+++ b/soxdial
@@ -430,6 +430,8 @@ sub add_bluebox_digit {
 # --norm is needed because otherwise, the volume decreases as the number of
 # digits (tones for "synth") goes up. --norm=-3 helps avoid clipping.
 sub make_sox_subcmd {
+	return ":" unless @freqs1;
+
 	my $length = shift || $digittime;
 	my $cmd = "sox -n -b$bits $encoding -r$rate -c1 -traw - --norm=-3 ";
 	my $synth = " synth $length ";
-- 
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