HM – Self-contained stand alone speech recognition circuit, User Programmable through keys. 2 No’s of 7-Segment Display (To Display Voice Recognize. The heart of the circuit is the HM speech recognition IC. AVR SELF LEARNING KIT–Interfacing 16 x 2 LCD in 8 bit ModeIn “AVR. Model #: Product’s Page: Speech Recognition System based on HM The speech recognition system.

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Take care to avoid using this board in Noisy places. As the RAM is volatilea 3v button battery is used to backup stored data. The IC can recognize 20 words, each word a length of 1. Thanks for dropping by alselectro! To stop the motor decimal 08 is assigned. Motor Control by Voice Recognition. You are commenting using your Twitter account.

Notify me of new comments via email. Provide a separate 12v DC power source to L board. Training Words for Recognition: It is not necessary to train all word spaces. The calculation of arriving at these values are shown in table above. This site uses cookies. recogjition

To rotate LEFT a decimal value of 18 is assigned. RoboticsUncategorized — 1 Comment. You are commenting using your WordPress.


Blog Stats 1, hits Follow Blog via Email Enter your email address to follow this blog and receive notifications of new posts by email. Check out the table below to see how to achieve a number for a Word.

Voice Recognition board HM – How to control a motor using voice commands | alselectro

Email required Address never made public. Fill in your details below or click an icon to log in: In the training process user trains the IC by speaking words into the microphone and. Before starting the training process we can erase the previous memory. Say the target word into the onboard microphone near LED clearly.


You are commenting using your Facebook account. Speech samples are acquired by a Microphone on board. Functioning of L can be understood from this post.

Take a look around and grab the RSS feed to stay updated. In the training process user trains the IC by speaking words into the microphone and rwcognition a particular value for that word. The board requires 5v DC supply.

HM – Speech Recognition Chip

If the system has to work under noisy environments, background noise may corrupt the original data and leads to malfunctioning. To find out more, including how to control cookies, see here: Leave a Reply Cancel reply Enter your comment here The circuit will accept and recognize up to 20 words numbers 01 through This 8 bit data can be directly connected to a port of Microcontroller for further action.


An 8 kB external RAM is needed to store data. By continuing to use this website, you agree to their use. This can then be later connected recognjtion a microcontroller for further functions.

To display the command numbers 2 common cathode 7 segment displays are provided. You may continue training new words in the circuit.

The heart of the circuit is the HM speech recognition IC. The 8 bit data is passed through an octal latch IC 74HC A 12v adapter can be used as a power source, as the board has inbuilt 5v regulator with heat sink. Let us test the board by connecting to a Motor through recognitioj motor driver board L This L can drive 2 motors at a time. May 16, at It is used in Robotics to control motors according to voice commands.