Real-time transcription and sentiment analysis of audio streams; on the phone and in the browser - Speaker Deck

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@aaronbassett

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–Google “SPDY: An experimental protocol for a faster web" “typical header sizes of 700-800 bytes is common”

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2 bytes. 0x00 UTF8 DATA 0xFF

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100,000

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700 Bytes

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560,000,000

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70MB/s

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0.2MB/s

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https://git.io/ fNlS2

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http://werise-tornado- server.ngrok.io/dashboard

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on_message write_message

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ish

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var soundAllowed = function (stream) { window.persistAudioStream = stream; var audioContent = new AudioContext(); var audioStream = audioContent.createMediaStreamSource( stream ); } var soundNotAllowed = function (error) { h.innerHTML = "You must allow your microphone."; console.log(error); } navigator.getUserMedia({audio:true}, soundAllowed, soundNotAllowed);

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var soundAllowed = function (stream) { window.persistAudioStream = stream; var audioContent = new AudioContext(); var audioStream = audioContent.createMediaStreamSource( stream ); } var soundNotAllowed = function (error) { h.innerHTML = "You must allow your microphone."; console.log(error); } navigator.getUserMedia({audio:true}, soundAllowed, soundNotAllowed);

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var soundAllowed = function (stream) { window.persistAudioStream = stream; var audioContent = new AudioContext(); var audioStream = audioContent.createMediaStreamSource( stream ); } var soundNotAllowed = function (error) { h.innerHTML = "You must allow your microphone."; console.log(error); } navigator.getUserMedia({audio:true}, soundAllowed, soundNotAllowed);

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var soundAllowed = function (stream) { window.persistAudioStream = stream; var audioContent = new AudioContext(); var audioStream = audioContent.createMediaStreamSource( stream ); } var soundNotAllowed = function (error) { h.innerHTML = "You must allow your microphone."; console.log(error); } navigator.getUserMedia({audio:true}, soundAllowed, soundNotAllowed);

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def proxy(self): return [ { 'action': 'connect', 'eventUrl': [f'{self.base_url}/events'], 'from': os.environ['NEXMO_NUMBER'], 'endpoint': [ { 'type': 'websocket', 'uri': f'{os.environ["WEBSOCKET_SERVER_URL"]}/socket', 'content-type': 'audio/l16;rate=16000', 'headers': {} } ] } ]

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def proxy(self): return [ { 'action': 'connect', 'eventUrl': [f'{self.base_url}/events'], 'from': os.environ['NEXMO_NUMBER'], 'endpoint': [ { 'type': 'websocket', 'uri': f'{os.environ["WEBSOCKET_SERVER_URL"]}/socket', 'content-type': 'audio/l16;rate=16000', 'headers': {} } ] } ]

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def proxy(self): return [ { 'action': 'connect', 'eventUrl': [f'{self.base_url}/events'], 'from': os.environ['NEXMO_NUMBER'], 'endpoint': [ { 'type': 'websocket', 'uri': f'{os.environ["WEBSOCKET_SERVER_URL"]}/socket', 'content-type': 'audio/l16;rate=16000', 'headers': {} } ] } ]

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def on_message(self, message): transcriber = yield self.transcriber if type(message) != str: transcriber.write_message(message, binary=True) else: logger.info(message) data = json.loads(message) data['action'] = "start" data['continuous'] = True data['interim_results'] = True transcriber.write_message(json.dumps(data), binary=False)

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def on_message(self, message): transcriber = yield self.transcriber if type(message) != str: transcriber.write_message(message, binary=True) else: logger.info(message) data = json.loads(message) data['action'] = "start" data['continuous'] = True data['interim_results'] = True transcriber.write_message(json.dumps(data), binary=False)

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def on_message(self, message): transcriber = yield self.transcriber if type(message) != str: transcriber.write_message(message, binary=True) else: logger.info(message) data = json.loads(message) data['action'] = "start" data['continuous'] = True data['interim_results'] = True transcriber.write_message(json.dumps(data), binary=False)

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def on_message(self, message): transcriber = yield self.transcriber if type(message) != str: transcriber.write_message(message, binary=True) else: logger.info(message) data = json.loads(message) data['action'] = "start" data['continuous'] = True data['interim_results'] = True transcriber.write_message(json.dumps(data), binary=False)

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self.transcriber = tornado.websocket.websocket_connect( 'wss://[url]?watson-token={token}&model={model}'.format( token=self.transcriber_token, model=os.environ['REALTIME_TRANSCRIBER_MODEL'] ), on_message_callback=self.on_transcriber_message )

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self.transcriber = tornado.websocket.websocket_connect( 'wss://[url]?watson-token={token}&model={model}'.format( token=self.transcriber_token, model=os.environ['REALTIME_TRANSCRIBER_MODEL'] ), on_message_callback=self.on_transcriber_message )

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def on_transcriber_message(self, message): if message: message = json.loads(message) if 'results' in message: transcript = message['transcript'] tone_results = self.tone_analyzer.tone( tone_input=transcript, content_type="text/plain" ) tones = tone_results['tones'] DashboardHandler.send_updates(json.dumps(tones))

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def on_transcriber_message(self, message): if message: message = json.loads(message) if 'results' in message: transcript = message['transcript'] tone_results = self.tone_analyzer.tone( tone_input=transcript, content_type="text/plain" ) tones = tone_results['tones'] DashboardHandler.send_updates(json.dumps(tones))

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def on_transcriber_message(self, message): if message: message = json.loads(message) if 'results' in message: transcript = message['transcript'] tone_results = self.tone_analyzer.tone( tone_input=transcript, content_type="text/plain" ) tones = tone_results['tones'] DashboardHandler.send_updates(json.dumps(tones))

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def on_transcriber_message(self, message): if message: message = json.loads(message) if 'results' in message: transcript = message['transcript'] tone_results = self.tone_analyzer.tone( tone_input=transcript, content_type="text/plain" ) tones = tone_results['tones'] DashboardHandler.send_updates(json.dumps(tones))

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def on_transcriber_message(self, message): if message: message = json.loads(message) if 'results' in message: transcript = message['transcript'] tone_results = self.tone_analyzer.tone( tone_input=transcript, content_type="text/plain" ) tones = tone_results['tones'] DashboardHandler.send_updates(json.dumps(tones))

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class DashboardHandler(tornado.websocket.WebSocketHandler): waiters = set() def open(self): DashboardHandler.waiters.add(self) def on_close(self): DashboardHandler.waiters.remove(self) @classmethod def send_updates(cls, tones): for waiter in cls.waiters: try: waiter.write_message(tones) except: pass

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class DashboardHandler(tornado.websocket.WebSocketHandler): waiters = set() def open(self): DashboardHandler.waiters.add(self) def on_close(self): DashboardHandler.waiters.remove(self) @classmethod def send_updates(cls, tones): for waiter in cls.waiters: try: waiter.write_message(tones) except: pass

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class DashboardHandler(tornado.websocket.WebSocketHandler): waiters = set() def open(self): DashboardHandler.waiters.add(self) def on_close(self): DashboardHandler.waiters.remove(self) @classmethod def send_updates(cls, tones): for waiter in cls.waiters: try: waiter.write_message(tones) except: pass

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class DashboardHandler(tornado.websocket.WebSocketHandler): waiters = set() def open(self): DashboardHandler.waiters.add(self) def on_close(self): DashboardHandler.waiters.remove(self) @classmethod def send_updates(cls, tones): for waiter in cls.waiters: try: waiter.write_message(tones) except: pass

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var emotions = { anger: new TimeSeries(), disgust: new TimeSeries(), fear: new TimeSeries(), joy: new TimeSeries(), sadness: new TimeSeries() }

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var websocket = new WebSocket('{{ server_url }}/dashboard-socket'); websocket.onmessage = function(evt) { JSON.parse(evt.data).map(function(emotion){ emotions[emotion.tone_id].append( new Date().getTime(), emotion.score ) }); }

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var websocket = new WebSocket('{{ server_url }}/dashboard-socket'); websocket.onmessage = function(evt) { JSON.parse(evt.data).map(function(emotion){ emotions[emotion.tone_id].append( new Date().getTime(), emotion.score ) }); }

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var websocket = new WebSocket('{{ server_url }}/dashboard-socket'); websocket.onmessage = function(evt) { JSON.parse(evt.data).map(function(emotion){ emotions[emotion.tone_id].append( new Date().getTime(), emotion.score ) }); }

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var websocket = new WebSocket('{{ server_url }}/dashboard-socket'); websocket.onmessage = function(evt) { JSON.parse(evt.data).map(function(emotion){ emotions[emotion.tone_id].append( new Date().getTime(), emotion.score ) }); }

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@aaronbassett @nexmodev developer.nexmo.com github.com/nexmo-community