Amazon Echo Dot Deep Learning


  • Introduction of Amazon Echo.
  • Feature of Amazon Echo.
  • Type of Generation.
  • Hardware Layer.
  • Software Layer.
  • Business Layer.

Introduction of Amazon Echo
Amazon Echo is known in-development as Doppler or Project D and shortened and referred to as Echo and it is a smart speaker developed by Amazon. The device consists of a tall cylinder speaker with a seven-piece of microphone.The device responds to the name “Alexa”. This “wake word” can be changed by the user to either “Amazon” or “Echo”,”Alexa”.

Feature of Amazon Echo

  • Play music.
  • Get the weather information.
  • News.
  • Build and control the smart home equipment.
  • Listen to a book or article.
  • Use Alexa as a kitchen assistant.
  • Other real time information.

Type of Generation

Amazon Echo
Release date: 2015 in US, 2016 in UK.
Weight: 1045 grams
Connectivity: Bluetooth and dual-band, dual-antenna Wi-Fi (MIMO)
Power: Plugs into a wall outlet
Audio: 360-degree sound (2.5 inch woofer and 2.0 inch tweeter)
Alexa: Yes (Always-on/always-listening/voice-activated)
Amazon Tap
Release date: 31 March 2016 for US
Weight: 470 grams
Connectivity: Bluetooth and supports 802.11b, 802.11g, or 802.11n Wi-Fi
Power: Relies on a charging cradle (9 hours of playback)
Audio: 360-degree sound (dual 1.5-inch drivers and dual passive radiators)
Alexa: Yes (Not always-listening; Must touch mic button to access Alexa)
Amazon Dot
Release date: September 2016
Weight: 250 grams
Connectivity: Bluetooth and dual-band, dual-antenna Wi-Fi (MIMO)
Power: Plugs into a wall outlet
Audio: Voice-feedback only (Must be connected to external speakers)
Alexa: Yes (Always-on/always-listening/voice-activated)

Hardware Layer


  • Microphone.
  • Mute button.
  • Reflex port.
  • Tweeter.
  • AUX.
  • MicroUSB.
  • Battery.
  • Wifi Connectivity.
  • Bluetooth Connectivity.


  • Seven arrays of Microphone.
  • Its support for Omni directional.
  • Indicate the glow of light to get the information about which microphone recognizes you.

Mute button

  • Stop the Alexa listening. Its gives for privacy purpose.

AUX port

  • It’s mainly used for connecting the external speaker or car speaker.

Micro USB port

  • To give a power supply for maintaining your device as “ON” state.

WiFi Connectivity

  • Dual band to support  5GHz and 2.4GHz WiFi.
  • Dual antenna WiFi used for faster streaming and intended to eliminate signal fading.
  • The ad-hoc network  does not support and its support for 802.11.a/b/g/n .

Bluetooth Connectivity

  • A2DP (Advanced Audio Distribution Profile) supports for audio streaming from your mobile device.
  • AVRCP (Audio/Video Remote Control Profile) for voice control of connected mobile device.
  • It’s not supported for Mac OS X.


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Amazon uses colors to indicate the status of the process.
Cyan and Royal Blue   –   Its glow during the voice command.
Red                              –   It appears to activate the mute.
Orange                         –   It appears trying to connect the wireless network.
Violet                             –  Its glow during the wifi setting.
White                             –  Its glow when you increase or decrease the volume.

Software Layer

       Amazon FireOS is an Android-based mobile operating system produced by Amazon for its Fire Phone and Kindle Fire range of tablets, and other content delivery devices like Fire TV; the tablet versions of the Kindle e-readers are the Fire range. It is forked from Android. Fire OS, primarily centers on content consumption, with a customized user interface and heavy ties to content available from Amazon’s own storefronts and services.

Business Layer

  • Amazon Rekognition
  • Amazon Lex
  • Amazon Polly

Amazon Rekognition


  • Deep neural network models.
  • Detect object and scene.
  • Facial analysis.
  • Face comparison.
  • Facial Recognition.

Amazon Lex

  • Build conversational voice and text interface.
  • ASR (Automatic speech Recognition).
  • NLU (Natural Language Understanding).
  • Chat bot.

Amazon Polly

  • Text to audio conversion.
  • SSML (Speech Synthesis Markup Language) uses to change the string to audio ffmpge.
  • We have a Java library for Amazon skill.

Result of the layers

Amazon Lex used to convert the relevant Naturan Language Understanable string from Automatic Speech Synthesis Recognition and to build the service and mobile application that support engaging lifelike interaction. Then the amazon skill information to generate the interaction models of intents. From the sample of utterances  to match that interaction model schema to get the response of the given input speech. Amazon Polly will add speech response to the logic behind program using Amazon Lex.

Here I share the presentation file. Presentation


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