diff options
Diffstat (limited to 'Speak.activity/audio.py')
| -rw-r--r-- | Speak.activity/audio.py | 49 |
1 files changed, 48 insertions, 1 deletions
diff --git a/Speak.activity/audio.py b/Speak.activity/audio.py index b667b4b..b7febdf 100644 --- a/Speak.activity/audio.py +++ b/Speak.activity/audio.py @@ -23,6 +23,7 @@ # This code is a stripped down version of the audio grabber from Measure +import subprocess import pygst pygst.require("0.10") import gst @@ -45,7 +46,17 @@ class AudioGrab(gobject.GObject): gobject.GObject.__init__(self) self.pipeline = None - def playfile(self, status, text): + def speak(self, status, text): + try: + self._speak(status, text) + except: + # espeak uses 80 to 370 + rate = 80 + (370-80) * int(status.rate) / 100 + wavpath = "/tmp/speak.wav" + subprocess.call(["espeak", "-w", wavpath, "-p", str(status.pitch), "-s", str(rate), "-v", status.voice.name, text], stdout=subprocess.PIPE) + self._playfile(wavpath) + + def _speak(self, status, text): pitch = int(status.pitch) rate = int(status.rate) # espeak uses 80 to 370 @@ -90,6 +101,42 @@ class AudioGrab(gobject.GObject): # how do we detect when the sample has finished playing? # we should stop the sound device and stop emitting buffers # to save on CPU and battery usage when there is no audio playing + + + def _playfile(self, filename): + self.stop_sound_device() + self._quiet = False + + # build a pipeline that reads the given file + # and sends it to both the real audio output + # and a fake one that we use to draw from + p = 'filesrc name=file-source ! decodebin ! tee name=tee tee.! audioconvert ! alsasink tee.! queue ! audioconvert name=conv' + self.pipeline = gst.parse_launch(p) + + # make a fakesink to capture audio + fakesink = gst.element_factory_make("fakesink", "fakesink") + fakesink.connect("handoff",self.on_buffer) + fakesink.set_property("signal-handoffs",True) + self.pipeline.add(fakesink) + + bus = self.pipeline.get_bus() + bus.add_signal_watch() + bus.connect('message', self._gstmessage_cb) + + # attach it to the pipeline + conv = self.pipeline.get_by_name("conv") + gst.element_link_many(conv, fakesink) + + # set the source file + self.pipeline.get_by_name("file-source").set_property('location', filename) + + # play + self.restart_sound_device() + + # how do we detect when the sample has finished playing? + # we should stop the sound device and stop emitting buffers + # to save on CPU and battery usage when there is no audio playing + def _gstmessage_cb(self, bus, message): type = message.type |