def run(): if len(sys.argv) < 2: print("Usage: %s wavefile" % os.path.basename(sys.argv[0])) print(" Using an example wav file...") dirname = os.path.dirname(__file__) fname = os.path.join(dirname, "hey.wav") else: fname = sys.argv[1] wavefp = wave.open(fname) channels = wavefp.getnchannels() bitrate = wavefp.getsampwidth() * 8 samplerate = wavefp.getframerate() wavbuf = wavefp.readframes(wavefp.getnframes()) formatmap = { (1, 8): al.AL_FORMAT_MONO8, (2, 8): al.AL_FORMAT_STEREO8, (1, 16): al.AL_FORMAT_MONO16, (2, 16): al.AL_FORMAT_STEREO16, } alformat = formatmap[(channels, bitrate)] device = alc.alcOpenDevice(None) context = alc.alcCreateContext(device, None) alc.alcMakeContextCurrent(context) source = al.ALuint(0) al.alGenSources(1, source) al.alSourcef(source, al.AL_PITCH, 1) al.alSourcef(source, al.AL_GAIN, 1) al.alSource3f(source, al.AL_POSITION, 0, 10, 0) al.alSource3f(source, al.AL_VELOCITY, 0, 0, 0) al.alSourcei(source, al.AL_LOOPING, 1) buf = al.ALuint(0) al.alGenBuffers(1, buf) al.alBufferData(buf, alformat, wavbuf, len(wavbuf), samplerate) al.alSourceQueueBuffers(source, 1, buf) al.alSourcePlay(source) state = al.ALint(0) al.alGetSourcei(source, al.AL_SOURCE_STATE, state) z = 10 while z > -10: time.sleep(1) al.alSource3f(source, al.AL_POSITION, 0, 0, z) print("playing at %r" % ([z, 0, 0])) z -= 1 print("done") al.alDeleteSources(1, source) al.alDeleteBuffers(1, buf) alc.alcDestroyContext(context) alc.alcCloseDevice(device)
def run(): if len (sys.argv) < 2: print ("Usage: %s wavefile" % os.path.basename(sys.argv[0])) print (" Using an example wav file...") dirname = os.path.dirname(__file__) fname = os.path.join(dirname, "hey.wav") else: fname = sys.argv[1] wavefp = wave.open(fname) channels = wavefp.getnchannels() bitrate = wavefp.getsampwidth() * 8 samplerate = wavefp.getframerate() wavbuf = wavefp.readframes(wavefp.getnframes()) formatmap = { (1, 8) : al.AL_FORMAT_MONO8, (2, 8) : al.AL_FORMAT_STEREO8, (1, 16): al.AL_FORMAT_MONO16, (2, 16) : al.AL_FORMAT_STEREO16, } alformat = formatmap[(channels, bitrate)] device = alc.alcOpenDevice(None) context = alc.alcCreateContext(device, None) alc.alcMakeContextCurrent(context) source = al.ALuint(0) al.alGenSources(1, source) al.alSourcef(source, al.AL_PITCH, 1) al.alSourcef(source, al.AL_GAIN, 1) al.alSource3f(source, al.AL_POSITION, 10, 0, 0) al.alSource3f(source, al.AL_VELOCITY, 0, 0, 0) al.alSourcei(source, al.AL_LOOPING, 1) buf = al.ALuint(0) al.alGenBuffers(1, buf) al.alBufferData(buf, alformat, wavbuf, len(wavbuf), samplerate) al.alSourceQueueBuffers(source, 1, buf) al.alSourcePlay(source) state = al.ALint(0) al.alGetSourcei(source, al.AL_SOURCE_STATE, state) z = 10 while z > -10: time.sleep(1) al.alSource3f(source, al.AL_POSITION, z, 0, 0) print("playing at %r" % ([z, 0, 0])) z -= 1 print("done") al.alDeleteSources(1, source) al.alDeleteBuffers(1, buf) alc.alcDestroyContext(context) alc.alcCloseDevice(device)
def play(delay_ms=15, dominant='left'): """ Plays the above wav file from a perceived location. Args: delay_ms: The delay between the first and second source. dominant: The dominant location to play the audio from. """ dominant = dominant.lower() directions = {'left', 'right', 'center'} GAIN = 1. if dominant not in directions or dominant == 'center': al.alSourcePlay(src_center) else: # Determine the order in which to play the sources. play_order = [src_left, src_right] # left-dominant. if dominant == 'right': play_order.reverse() # Adjust the gains for a more biased stereo effect. al.alSourcef(play_order[0], al.AL_GAIN, GAIN * 0.5) al.alSourcef(play_order[1], al.AL_GAIN, GAIN * 0.4) # Apply the precedence effect by playing the sources # 'delay_ms' milliseconds apart. al.alSourcePlay(play_order[0]) time.sleep(delay_ms / 1000) al.alSourcePlay(play_order[1]) # Wait until playback is finished, then delete the buffer. duration = wav.getnframes() / samplerate time.sleep(duration)
def play(self): al.alSourcePlay(self.source)