audio device configuration

.asoundrc

@@ -1,6 +1,8 @@
 pcm.my_sound_device {
 	type hw
 	card USB
+#	card PCH
+#	card Headphones
 	device 0
 }
 

README.md

@@ -45,7 +45,13 @@ The recordings must be edited a little bit so some audio processing tool is need
 Configuration
 -------------
 
-If your sound device is other then USB type then change the line `card USB` in ALSA config
+First try using default audio device for playback and recording. Edit `dog-trainer.py` and activate `PLAY_DEVICE="default"` and `REC_DEVICE="default"`
+> `nano dog-trainer.py`
+
+Skip to the next section `Run it!`. If either playback or recording does not work check your sound cards
+> `aplay -L | grep ^hw:CARD=`
+
+If your sound device is other then `USB` then change the line `card USB` in ALSA config
 > `nano .asoundrc`
 
 Install the ALSA config file

dog-trainer.py

@@ -4,8 +4,12 @@ from datetime import datetime
 import subprocess
 import sys
 
+# PLAY_DEVICE = "default"  # Playback/recording through the PulseAudio sound server
+# REC_DEVICE = "default"  # Playback/recording through the PulseAudio sound server
+
 PLAY_DEVICE = "my_sound_device_with_converter"  # as defined in '~/.asoundrc'
 REC_DEVICE = "my_sound_device"  # as defined in '~/.asoundrc'
+
 MAX_RECORDING_TIME = 30  # limit recordings to only e.g. 30 seconds long
 TRIM_RECORDING_END = 0.8  # remove the clicking noise from the end of recordings
 RECORD_BUTTON_PRESS_TIME = 2  # pressing and holding a button longer then e.g. 2 seconds triggers recording otherwise playing