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gpsnavi: Switch to ALSA output

Update the talk scripts to use ALSA output via gst-launch-1.0 instead
of PulseAudio's paplay.  gstreamer is used since it is likely that a
further revision will change to a pipewire output sink and add back
setting a role property.

Upstream-Status: Inappropriate [no upstream]

Signed-off-by: Scott Murray <scott.murray@konsulko.com>

diff --git a/flite_agl.in b/flite_agl.in
index 28b512c..67a09e5 100644
--- a/flite_agl.in
+++ b/flite_agl.in
@@ -1,6 +1,6 @@
 #!/bin/sh
 TMP=/tmp/navi.wav
 echo "$1" | flite_hts_engine -m  @datadir@/Voice/us/cmu_us_arctic_slt.htsvoice -o $TMP
-paplay --property='media.role=Navi' $TMP
+gst-launch-1.0 filesrc location=$TMP ! decodebin ! audioconvert ! audioresample ! alsasink
 rm -f $TMP
 
diff --git a/jtalk_agl.in b/jtalk_agl.in
index 76900f4..73c87e5 100644
--- a/jtalk_agl.in
+++ b/jtalk_agl.in
@@ -1,6 +1,6 @@
 #!/bin/sh
 TMP=/tmp/navi.wav
 echo "$1" | open_jtalk -ow $TMP -m @exec_prefix@/share/Voice/mei/mei_normal.htsvoice -x @exec_prefix@/share/dic/
-paplay --property='media.role=Navi' $TMP
+gst-launch-1.0 filesrc location=$TMP ! decodebin ! audioconvert ! audioresample ! alsasink
 rm -f $TMP