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Home » Our Products » Speech Recognition HM2007 & Voice Recording IC

Speech Recognition HM2007 & Voice Recording IC

We offer IC and Easy to use kit for Speech Recognition HM2007. We are distributor of HM2007 IC. Also we have Voice Recording IC with 16mins storage capacity and many more features compare to other Voice Rceording IC.

HM2007 Voice IC

HM2007 Voice IC
Approx. Price: Rs 3,200 / Piece(s)

Item Code: HM2007

Description: The HM2007 Speech Recognition IC performs speech recognition independently in a stand alone mode, or it can function as a slave to a host processor in CPU mode. In stand alone mode, the circuit can recognize up to 40 words lasting one second each. The chip provides the options of recognizing either forty .96 second words or twenty 1.92 second words. This circuit allows the user to choose either the .96 second word length (40 word vocabulary) or the 1.92 second word length (20 word vocabulary). For memory the circuit uses an 8K X 8 static RAM.

The chip has two operational modes; manual mode and CPU mode. The CPU mode is designed to allow the chip to work under a host computer. This is an attractive approach to speech recognition for computers because the speech recognition chip operates as a co-processor to the main CPU. The jobs of listening and recognition doesn't occupying any of the computer's CPU time. When the HM2007 recognizes a command it can signal an interrupt to the host CPU and then relay the command code. The HM2007 chip can be cascaded to provide a larger word recognition library.

Features of HM2007 IC Chip are as follows:

  • Single chip voice recognition CMOS LSL.
  • Maximum 40 words can be recognized for one chip.
  • External 64K SRAM can be connected directly.
  • Maximum 1.92 sec of word can be recognized
  • A microphone can be connected directly
  • Speaker- dependent isolates-word recognition system
  • Multiple-chip configuration is possible
  • Two control mode is supported: manual mode & CPU mode.
  • Response time: less than 300ms
  • 5V single power supply
  • 45-pin PDIP, 52 pin PLCC, 48 pad bare chip.

Speech Recognition IC HM2007 KIT

Speech Recognition IC HM2007 KIT
Approx. Price: Rs 4,500 / Piece(s)

Item Code: Speech

The Speech Recognition Hm2007 system is a completely assembled and easy to use programmable speech recognition circuit. Programmable, in the sense that you train the words (or vocal utterances) you want the circuit to recognize. This board allows you to experiment with many facets of speech recognition technology. It has 8 bit data out which can be interfaced with any microcontroller for further development. Some of interfacing applications which can be made are controlling home appliances, robotics movements, Speech Assisted technologies, Speech to text translation, and many more.


  • Self-contained stand alone speech recognition circuit
  • User programmable
  • Up to 20 word vocabulary of duration two second each
  • Multi-lingual
  • Non-volatile memory back up with 3V battery onboard. Will keep the speech recognition data in memory even after power off.
  • Easily interfaced to control external circuits & appliances

ISD1760 - Voice Recording

ISD1760 - Voice Recording
Approx. Price: Rs 450 / Piece(s)


  • Onboard ISD1760 chip.
  • Onboard microphone, can do direct recording.
  • 75 seconds of audio playback.
  • Recording, Erase, Play, FT (direct), Fast Forward, Reset, Volume buttons.
  • Easy interface with the microcontroller using the 2.54mm spaced male pin headers.
  • The high quality natural voice reduction, can be used as a advertising machine.
  • Working voltage: 5V
  • Status LED
  • Board size: 49 x 41.5 (mm)

ISD1820 - Voice Recorder

ISD1820 - Voice Recorder
Approx. Price: Rs 225 / Piece(s)

This voice record/playback device is based on ISD1820 chip, which can record/playback multiple-message. It can offer true single-chip voice recording, non-volatile storage, and playback capability for 8 to 20 seconds. For the sampling rate of 3.2KHz it can record for the total duration of 20 seconds.


  • Push-button interface, playback can be edge or level activated
  • Automatic power-down mode
  • On-chip 8Ω speaker driver
  • Can be controlled both manually or by the microcontroller
  • Sample rate and duration changeable by replacing a single resistor
  • Record up to 20 seconds of audio
  • On board record/play button
  • On board microphone
  • Repeat/One Time mode select
  • External connector for speaker
  • The chip has the major pin leads, through which you can control the operation from the microcontroller
  • High-quality, natural voice restored, used as a loudspeaker module
  • 3-5V operating voltage
  • Dimensions: 37 x 54 mm

If you want change the record duration, an external resistor is necessary to select the record duration and sampling frequency, which can range from 8 – 20 seconds (4-12kHz sampling frequency). This voice record module provides default connect to a 100k resistor through P2 by short cap. So the default record duration is 10s.


Rajguru Electronics
Dileep Jain (Manager)
399 3rd Floor , Manek Chambers , Above Vasant Bhavan Restaurant, Lamington Road
Mumbai - 400004, Maharashtra, India

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