ISD4004 Speech Voice Module Development Kit (Voice Recording & Playback Module)

The ISD4004 Speech Voice Module Development Kit is a non-volatile voice recording and playback module designed for embedded audio applications. Based on the ISD4004 voice recording IC, it uses analog storage technology to record and reproduce high-quality voice messages without requiring external memory. The module supports microphone or line-level audio input and provides direct speaker output for standalone operation. With SPI and direct control interfaces, it is ideal for voice prompts, security systems, industrial equipment, home automation, interactive devices, and embedded audio projects.

Key Features -

• Based on ISD4004 voice recording and playback IC

• Non-volatile analog voice storage

• Supports voice recording and playback

• Onboard microphone interface

• Direct speaker output

• SPI communication support

• Simple control interface

• Multiple message storage capability

• Compact development board

• Ideal for embedded voice applications

Specifications -

• Product type - Voice Recording and Playback Module

• Controller IC - ISD4004

• Operating voltage - 4.5V to 5.5V DC

• Storage type - Non-Volatile Analog Memory

• Recording time - Model Dependent

• Audio input - Microphone or Line Input

• Audio output - Speaker Output

• Communication interface - SPI and Direct Control Pins

• Sampling frequency - Internal Fixed Rate

• Operating temperature - 0C to 70C

Applications -

• Voice announcement systems

• Security and alarm systems

• Interactive kiosks

• Home automation

• Industrial equipment

• Educational projects

• Embedded audio systems

• DIY electronics