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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 IC

HM2007 IC

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

Item Code: Speech

Description: 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

Voice Recorder IC

Voice Recorder IC

Item Code: VoiceIC


Upto 7 kinds of operating mode: mp3 mode, one to one key mode, parallel mode, one record one play key mode, Audio book mode, two-wire serial mode and three-wire serial mode.

Support MIC and LINE IN Recording.

support plug in 64M bit SPI-FLASH, Recording time upto 1600 secs.

Support upload and download voice via USB.

Support playback the high-quality voice which downloaded from computer.

can record upto 252 segment voice (including fix voice).

with function of power down data protection.

Support audio recording at 10kHZ or 14 KHz sample rate.

Adopt a separate data management system, recording without debris, more reasonable distribution of SPI FLASH space.

Support key and MCU Control.

8 level controllable volume

Operating voltage: DC 2.6-3.6V , sleep current>10uA.


RajGuru Electronics
Dileep Jain (Manager)
259 Shanti Sadan, 3rd Flr, Office No. 23, Lamington Road,
Mumbai - 400004, Maharashtra, India

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