Epson Moverio Pro BT-2000, Developer'S Manual

Page: 65 / 202

MOVERIO Pro Developer's Guide (Rev.1.4)
59
5.7.5. Voice command API usage flow example
See the sample source for voice commands for more details.
5.7.6. Callback onSpeakable for receiving speaking timing
In voice command system, when noise is inputted and judged as speech from S/N ratio or
Amplitude value (Amp value), it enters into recognition process, and will not accept voice input
for a moment. Also after recognizable word is detected, it will be in transferring process to be in
recognition acceptable situation again, so there is a period that cannot accept voice input. By
showing this period as GUI, it can improve voice command convenience. In details, , implement
VoiceCommandClientCallbacks interface of
Android.media.epson.VoiceCommandClientCallbacksand define onSpeakable(), then can receive
speech acceptable timing.
■Application to set S/N ratio and amplitude(AMP value) accorded to the environment
If onSpeakable is called when there is no speech situation, three is a possibility of reacting to
surround noise. Therefore, using onSpeakble receiving value as index, set S/N ratio and Amp
value to make value received from onSpeakable becomes always true while not speaking. By this
way, it is possible to set S/N, amplitude (AMP value) more suitable for using environment.