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example

This service can play a variety of audio files.  Speech with Google backend  requires this service.

Example code (from branch develop):
#########################################
# AudioFile.py
# more info @: http://myrobotlab.org/service/AudioFile
#########################################
 
# start the services
player = runtime.start("player", "AudioFile")
 
# play an internet accessable file - first time will take a while
# but it will be cached in data/Audiofile/cache
player.play("https://upload.wikimedia.org/wikipedia/commons/1/1f/Bach_-_Brandenburg_Concerto.No.1_in_F_Major-_II._Adagio.ogg")
 
print('listen for a couple seconds')
sleep(5)
 
print('pause for a couple seconds')
player.pause()
sleep(5)
 
print('resume')
player.resume()
sleep(5)
 
# print the current track we are using
print('current track is', player.getTrack())
 
# go to "default" track
print('setting to default track', player.setTrack())
 
# volume value between 0.0 and 1.0
player.setVolume(0.8)
 
# a couple resource files exist for this service
# they can be played directly
player.playResource("R2D2e.wav")
 
# these methods do not block so sleep here so
# you can hear what 80% volume sounds like
print('queue 2 files and wait 5 seconds listening to the queued files')
sleep(5)
 
print('resetting to full volume')
player.setVolume(1.0)
 
 
# now we can play them just as we can play 
# any file on the file system
# e.g. audiofile.playFile("c:/sounds/beep.mp3")
print('start playing a new file')
 
audioPlayer.play("resource/AudioFile/well.wav")
sleep(1)
 
# pause the default track
print('pausing track')
player.pause()
sleep(2)
 
# resume the default track
print('resuming track')
player.resume()
sleep(4)
 
# create a new track named "priority"
# and have the short beeps repeat 8 times
 
audioPlayer.setTrack("priority")
audioPlayer.repeat("resource/AudioFile/well.wav", 8)
 
# make a new beep track and play r2d2 noises
audioPlayer.setTrack("beepTrack")
audioPlayer.repeat("resource/AudioFile/R2D2e.wav")
 
# go back to the default track
audioPlayer.setTrack("default")
audioPlayer.repeat("resource/AudioFile/good_evening.wav", 3)
 
# hold here in the script for 5 seconds
# everything should be playing simultaneously
sleep(5)
 
# the repeat without number repeats until 
# we go back to the track and stop it
# move to the beep track
player.setTrack("beepTrack")
# stop the beep track
player.stop()
 
print('silencing all')
# silence all 
player.silence()
 
# add a named playlist
# in this case we add a directory or file to our list
 
audioPlayer.addPlaylist('my list', 'resource/AudioFile')
 
# then we can play the list - it will default to play on its own track
# so you can run more sounds or voices in the foreground
 
# start my playlist in the background
player.startPlaylist('my list')
 
# repeat good evening in the foreground 3 times
 
audioPlayer.repeat("resource/AudioFile/good_evening.wav", 3)
 
 
# silence everything
player.silence()
 
sleep(1)
player.resume()
 
######################################
# Robot mouth control
# you can have a Servo service subscribe to an 
# AudioFile service and publish from peak loudness
# to the servos moveTo method
 
mouthServo = runtime.start("mouthServo", "Servo")
mouthServo.setPin('5')
mega = runtime.start("mega", "Arduino")
mega.connect('/dev/ttyACM0')
mega.attach('mouthServo')
 
 
# connect servo to Arduino, Adafruit or some other driver
 
# subscribe the servo to the peak loudness 
mouthServo.subscribe('player', 'publishPeak', 'mouthServo', 'moveTo')
 
player.setMute(False)
player.resume()
 
# check AudioFile configuration in audioFile.yml for other values to tweak
player.play('https://upload.wikimedia.org/wikipedia/commons/c/c7/An_Unfinished_Story.ogg')
Example configuration (from branch develop):
!!org.myrobotlab.service.config.AudioFileConfig
audioListeners: null
currentPlaylist: default
currentTrack: default
mute: false
peakMultiplier: 1.0
peakSampleInterval: 15.0
peers: null
playlists: null
type: AudioFile
volume: 1.0