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audioengine.py
from objc_util import *
AVAudioEngine = ObjCClass('AVAudioEngine').alloc().init()
AVAudioSession = ObjCClass('AVAudioSession')
AVAudioRecorder = ObjCClass('AVAudioRecorder')
shared_session = AVAudioSession.sharedInstance()
category_set= shared_session.setCategory_withOptions_error_(
ns('AVAudioSessionCategoryRecord'),
0x2, #duckothers
None)
shared_session.setMode_error_(ns('AVAudioSessionModeMeasurement'),None)
setActiveOptions = 0# notifyOthersOnDeactivation
shared_session.setActive_withOptions_error_(True,setActiveOptions,None)
inputNode = AVAudioEngine.inputNode()
# Configure the microphone input.
recordingFormat = inputNode.outputFormatForBus_(0)
def handler(_cmd,obj1_ptr,obj2_ptr):
# param1 = AVAudioPCMBuffer
# The buffer parameter is a buffer of audio captured
# from the output of an AVAudioNode.
# param2 = AVAudioTime
# The when parameter is the time the buffer was captured
if obj1_ptr:
obj1 = ObjCInstance(obj1_ptr)
#self.recognitionRequest?.append(buffer)
handler_block = ObjCBlock(handler, restype=None, argtypes=[c_void_p, c_void_p, c_void_p])
inputNode.installTapOnBus_bufferSize_format_block_(0,1024,recordingFormat, handler_block)
AVAudioEngine.prepare()
err_ptr = c_void_p()
AVAudioEngine.startAndReturnError_(byref(err_ptr))
if err_ptr:
err = ObjCInstance(err)
print(err)
# Create and configure the speech recognition request.
recognitionRequest = ObjCClass('SFSpeechAudioBufferRecognitionRequest').alloc()
print(dir(recognitionRequest))
recognitionRequest.setShouldReportPartialResults_(True)
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