+ao_aprs_test: ao_aprs_test.c ao_aprs.c
+ cc $(CFLAGS) -o $@ ao_aprs_test.c
+
+SOX_INPUT_ARGS=--type raw --encoding unsigned-integer -b 8 -c 1 -r 9600
+SOX_OUTPUT_ARGS=--type wav
+
+ao_aprs_data.wav: ao_aprs_test
+ ./ao_aprs_test | sox $(SOX_INPUT_ARGS) - $(SOX_OUTPUT_ARGS) $@
+