Makefile: set 16 / 32 bits, lower volume to avoid dithering

diff --git a/Makefile b/Makefile
index 73af21c..ee47e27 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -62,8 +62,8 @@ help:
 create_test_sounds:
        -[ -z `which $(SOX)` ] && ( echo $(SOX) could not be found) || true
        -mkdir -p $(TESTSOUNDS)
-       -$(SOX) -r 44100 -n $(TESTSOUNDS)/44100Hz_1f_silence.wav synth 1s silence 0
-       -$(SOX) -r  8000 -n $(TESTSOUNDS)/8000Hz_30s_silence.wav synth 30 silence 0
-       -$(SOX) -r 32000 -n $(TESTSOUNDS)/32000Hz_127f_sine440.wav synth 127 sine 440
-       -$(SOX) -r 22050 -n $(TESTSOUNDS)/22050Hz_5s_brownnoise.wav synth 5 brownnoise
-       -$(SOX) -r 48000 -n $(TESTSOUNDS)/48000Hz_60s_sweep.wav synth 60 sine 200-24000
+       -$(SOX) -r 44100 -b 16 -n $(TESTSOUNDS)/44100Hz_1f_silence.wav synth 1s silence 0
+       -$(SOX) -r  8000 -b 16 -n $(TESTSOUNDS)/8000Hz_30s_silence.wav synth 30 silence 0 vol 0.9
+       -$(SOX) -r 32000 -b 16 -n $(TESTSOUNDS)/32000Hz_127f_sine440.wav synth 127 sine 440 vol 0.9
+       -$(SOX) -r 22050 -b 16 -n $(TESTSOUNDS)/22050Hz_5s_brownnoise.wav synth 5 brownnoise vol 0.9
+       -$(SOX) -r 48000 -b 32 -n $(TESTSOUNDS)/48000Hz_60s_sweep.wav synth 60 sine 0.1-20000 vol 0.9