Banner

LD3320 Speech Recognition Module for Nonspecific Human Speech

Reference RBD-3189

Summary (Bullet list):
LD3320 Speech Recognition Module supports nonspecific human speech without pre-training.
Recognizes natural language commands in multiple languages.
Allows up to 50 dynamically editable keywords for real-time customization.
Equipped with microphone input and speaker/headphone output for full audio handling.
Communicates via SPI interface, compatible with microcontrollers like Arduino and STM32.
Ideal for voice-controlled automation, toys, and smart interactive devices.

Description
Product Details

Description

The LD3320 Speech Recognition Module is an advanced, flexible voice interaction solution capable of recognizing nonspecific human speech — eliminating the need for pre-recorded training. This makes it ideal for voice-controlled automation, intelligent gadgets, and interactive toys. The module can dynamically update up to 50 recognition keywords, enabling fast customization and adaptability for various applications. With SPI communication, microphone input, and speaker output, the LD3320 provides a complete platform for building speech-enabled systems. Compact and reliable, it offers excellent performance in multiple languages, ensuring accurate voice recognition in diverse environments. Featured By RoboticsBD.

Product Images are shown for illustrative purposes only and may differ from the actual product.

RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD

Features:

Nonspecific Speech Recognition: Recognizes natural spoken commands without user training.
Dynamic Keyword Update: Supports up to 50 keywords that can be edited or replaced anytime.
Multi-Language Support: Capable of recognizing speech in several common languages.
Audio Input/Output: Built-in microphone and speaker interfaces for full audio handling.
High Accuracy: Reliable recognition even in real-world conditions with background noise.
SPI Communication Interface: Easily interfaces with Arduino, STM32, and other MCUs.
Configurable via Registers: Simple setup and adjustment through development board programming.
Compact Design: Small, lightweight, and easy to integrate into embedded systems.
Plug-and-Play Operation: Comes pre-integrated with development board for quick prototyping.
Flexible Applications: Ideal for automation, interactive toys, and voice-assisted electronics.

RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD

Applications:

Smart Home Systems: Voice-activated lights, fans, or home appliances.
Interactive Toys: Educational and entertainment devices with voice input.
Voice-Enabled Gadgets: Embedded systems responding to human commands.
DIY Automation Projects: Hands-free control for IoT or robotics applications.
Speech-Controlled Instruments: User-customizable voice interface for tools and equipment.

RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD

General Specifications
Model	LD3320
Recognition Type	Nonspecific human speech
Keyword Capacity	Up to 50 (dynamically editable)
Language Support	Multiple languages
Interface	SPI (Serial Peripheral Interface)
Audio Input	Microphone
Audio Output	Speaker or headphones
Power Supply	Via development board
Programming	Register-based configuration
Customization	Real-time keyword updates
Recognition Accuracy	High, suitable for ambient environments
Applications	Automation, toys, smart devices, IoT
Dimensions	Compact development board
Shipment Weight	0.0158 kg
Shipment Dimensions	9 × 3 × 3 cm

Please allow 5% measuring deviation due to manual measurement.

RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD

Documentation:

Advantages

User-Friendly: Eliminates the need for pre-training and offers dynamic keyword configuration.

Highly Flexible: Suitable for multiple applications with updatable keyword lists.

Accurate Recognition: Ensures reliable performance in diverse environments.

Plug-and-Play Development: Simplifies integration with an onboard development board.

Package Includes:

1 x LD3320 Speech Recognition Module for Nonspecific Human Speech

RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD

Product Details

Reference RBD-3189

In stock 3 Items

Specific References

EAN13: 3189

Comments (0)

Grade

No customer reviews for the moment.

16 other products in the same category:

Reference: RBD-2039

DY-SV5W Audio Playback MP3 Module

(0)

Product Name:DY-SV5W Voice Playback Module Product Number:DY-SV5W Work Voltage:DC 5V Working Temperature range:-20℃~85℃ Working Humidity range:0%-95%RH Size :35*35*4.5mm

BDT 750

BDT 750 tax incl.

BDT 750 tax excl.

BDT 750 tax incl.

BDT 0 Tax

BDT 750 tax excl.

BDT 0 Tax

BDT 750 tax incl.

In-Stock

In stock: 25

Reference: RBD-2758

MAX9814 Microphone Amplifier Module

(0)

MAX9814 microphone amplifier module with automatic gain control (AGC) Compatible with Arduino and other microcontrollers via analog pin Wide frequency response: 20Hz – 20kHz for accurate sound measurement Adjustable maximum gain: 40dB, 50dB, or 60dB via gain pin Adjustable attack/release ratio for flexible sound response control Compact PCB size: 25.4 ×...

BDT 380

BDT 380 tax incl.

BDT 380 tax excl.

BDT 380 tax incl.

BDT 0 Tax

BDT 380 tax excl.

BDT 0 Tax

BDT 380 tax incl.

In-Stock

In stock: 18

Reference: RBD-2724

MAX4466 Electret Microphone Adjustable Amplifier Module

(0)

High-sensitivity MAX4466 Electret Microphone with built-in amplifier Adjustable gain for customized audio capture and signal strength Wide working voltage range: 2.4V to 5.5V for versatile use Compact design (20.8 × 13.8 × 7.5mm) with pre-soldered pins for easy integration Low quiescent current (<24μA) ensures energy-efficient performance Ideal for...

BDT 230

BDT 230 tax incl.

BDT 230 tax excl.

BDT 230 tax incl.

BDT 0 Tax

BDT 230 tax excl.

BDT 0 Tax

BDT 230 tax incl.

In-Stock

In stock: 35

Reference: RBD-3714

Piezo Electronic Buzzer Beep Alarm Bell Continuous Sound 3v-24v Buzzer Electromagnetic

(0)

Supply Voltage:12VDC Sound Output: 85dB Colour: Black

BDT 95

BDT 95 tax incl.

BDT 95 tax excl.

BDT 95 tax incl.

BDT 0 Tax

BDT 95 tax excl.

BDT 0 Tax

BDT 95 tax incl.

In stock

In stock: 16

Reference: RBD-1773

VHM-314 V3.0 Bluetooth Audio Receiver Board

(0)

Supply Voltage: 5V USB / 3.7V lithium battery Output Port: 3-wire audio interface/DIY pad Output Type: Analog signal Bluetooth name: VHM-314-V3.0 Bluetooth version: 5.0 Bluetooth passcode: no password Sound source: Bluetooth. USB-PC input(after the back pad is connected, the computer can be connected as a sound card though Micro) Operation method:...

BDT 430

BDT 430 tax incl.

BDT 430 tax excl.

BDT 430 tax incl.

BDT 0 Tax

BDT 430 tax excl.

BDT 0 Tax

BDT 430 tax incl.

In-Stock

In stock: 11

Reference: RBD-2213

TPA3118 - 28p PBTL Mono Digital Amplifier Board 1X30W 12V Power Amplifier Module

(0)

Operating voltage (v):DC 8 – 12V Chipset:TPA3118 - 28 pin Chinese Variant Power output:30W Material:FR4This is a Chinese variant of the TPA3118 in a 28-pin package.

BDT 360

BDT 360 tax incl.

BDT 360 tax excl.

BDT 360 tax incl.

BDT 0 Tax

BDT 360 tax excl.

BDT 0 Tax

BDT 360 tax incl.

In-Stock

In stock: 23

Reference: RBD-2718

PAM 8610 Digital Stereo Class-D Amplifier Board 2x15W Output

(0)

2x15W stereo Class-D amplifier board for high-quality sound output Operates on 7V–15V DC supply with recommended 12V 3A for best performance 32-step DC volume control from +32dB to -75dB for precise audio adjustment Compact 40-pin QFN 6×6mm package, requiring minimal external components Low THD+N (0.1%), low EMI, and good PSRR ensure clear,...

BDT 250

BDT 250 tax incl.

BDT 250 tax excl.

BDT 250 tax incl.

BDT 0 Tax

BDT 250 tax excl.

BDT 0 Tax

BDT 250 tax incl.

In-Stock

In stock: 24

Reference: RBD-1867

TDA7297 Audio Amplifier Module

(0)

Original TDA7297 core technology Easy Plug and Play Operation Dynamic operating Voltage Range: 8 to 16V High fidelity Dual 15W output.

BDT 490

BDT 490 tax incl.

BDT 490 tax excl.

BDT 490 tax incl.

BDT 0 Tax

BDT 490 tax excl.

BDT 0 Tax

BDT 490 tax incl.

In-Stock

In stock: 13

ISD1820 Voice Recording Module With Mic and Loudspeaker Robotics Bangladesh

Reference: RBD-0690

ISD1820 S16 Voice Recording Module With Mic and Loudspeaker

(0)

The main chip: ISD1820. S16 Operating Voltage: DC 3V-5V. Loudspeaker: 8Ω, 0.5W. An easy to use 10 seconds of voice recording. High-quality, natural voice restored. Can be used as a propaganda module. With looping, jog playback, single-pass play function.

BDT 280

BDT 280 tax incl.

BDT 280 tax excl.

BDT 280 tax incl.

BDT 0 Tax

BDT 280 tax excl.

BDT 0 Tax

BDT 280 tax incl.

In-Stock

In stock: 24

Reference: RBD-0990

XFS5152CE Speech Synthesis Module TTS Voice Module

(0)

Support any Chinese text, English text synthesis, and support for English mixed Support voice codec function, the user can use the chip for direct recording and playback Support speech recognition function, can support the recognition of 30 command words.

BDT 2,100

BDT 2,100 tax incl.

BDT 2,100 tax excl.

BDT 2,100 tax incl.

BDT 0 Tax

BDT 2,100 tax excl.

BDT 0 Tax

BDT 2,100 tax incl.

In-Stock

In stock: 6

PCB Mount Mini Speaker Breadboard-Friendly - 8 Ohm 0.

Reference: RBD-2692

PCB Mount Mini Speaker - 8 Ohm 0.2W

(0)

Breadboard-Friendly PCB Mount Mini Speaker - 8 Ohm 0.2W 1.1" (~30mm) diameter speaker with 8 Ohm impedance Perfect for breadboard-based audio projects Durable plastic casing, lightweight design Power handling: Nominal 0.1 Watts, Maximum 0.2 Watts

BDT 120

BDT 120 tax incl.

BDT 120 tax excl.

BDT 120 tax incl.

BDT 0 Tax

BDT 120 tax excl.

BDT 0 Tax

BDT 120 tax incl.

In-Stock

In stock: 8

Reference: RBD-3186

ASR PRO Voice Recognition Module Offline Speech Development Board

(0)

ASR PRO Voice Recognition Module supports offline speech recognition with up to 300 customizable voice commands. Achieves 98%+ recognition accuracy and operates at distances up to 10 meters. Features a 240MHz processor with advanced neural network algorithms for speech enhancement. Equipped with 2MB/4MB SPI Flash, 3 UARTs, 10 GPIOs, 6 PWMs, I²C, and SPI...

BDT 890

BDT 890 tax incl.

BDT 890 tax excl.

BDT 890 tax incl.

BDT 0 Tax

BDT 890 tax excl.

BDT 0 Tax

BDT 890 tax incl.

In-Stock

In stock: 10

Reference: RBD-3187

Bluetooth 5.0 Pro MP3 Decoder Board Audio Receiver

(0)

Bluetooth 5.0 Pro MP3 Decoder Board for high-quality, lossless wireless audio transmission. Supports simultaneous charging and playback with built-in power management circuit. Hands-free calling with onboard microphone or headset mic support. Equipped with LED indicators for Bluetooth mode, charging, and low battery status. Offers 15m Bluetooth range with...

BDT 560

BDT 560 tax incl.

BDT 560 tax excl.

BDT 560 tax incl.

BDT 0 Tax

BDT 560 tax excl.

BDT 0 Tax

BDT 560 tax incl.

In-Stock

In stock: 43

Reference: RBD-3199

ESP8266 Infrared Emission and Reception NEC Command Wi-Fi Module Type-C

(0)

ESP8266 Infrared Wi-Fi Module with NEC command emission and reception. Built-in ESP-12F chipset supporting IEEE 802.11 b/g/n Wi-Fi networking. Type-C interface for modern connectivity and power supply. Web-based configuration for easy Wi-Fi setup and debugging. Supports cross-room control via Wi-Fi and infrared signals. Ideal for smart home automation,...

BDT 620

BDT 620 tax incl.

BDT 620 tax excl.

BDT 620 tax incl.

BDT 0 Tax

BDT 620 tax excl.

BDT 0 Tax

BDT 620 tax incl.

In-Stock

In stock: 17

Reference: RBD-3286

Serial MP3 Music Player Module

(0)

The Serial MP3 Music Player Module V1.3.2 is a compact and easy-to-use audio playback module that supports MP3 and WAV file formats. Designed for seamless integration into microcontroller-based projects, this module enables high-quality audio playback with simple UART TTL serial control. This module is highly compatible with platforms like Arduino,...

BDT 450

BDT 450 tax incl.

BDT 450 tax excl.

BDT 450 tax incl.

BDT 0 Tax

BDT 450 tax excl.

BDT 0 Tax

BDT 450 tax incl.

In stock

In stock: 17

Reference: RBD-3777

JQ8400-FL Mini MP3 Player Audio Module

(0)

The JQ8400-FL Mini MP3 Player Audio Module is a compact, efficient, and versatile audio solution designed for embedded systems, DIY electronics, and portable devices. Capable of decoding standard MP3 formats with a wide range of sample rates, it delivers high-quality sound output in a small footprint.

BDT 390

BDT 390 tax incl.

BDT 390 tax excl.

BDT 390 tax incl.

BDT 0 Tax

BDT 390 tax excl.

BDT 0 Tax

BDT 390 tax incl.

In stock

In stock: 13

Frequently purchased together
Products from the same category

Reference: RBD-0382

GY-87 10DOF MPU6050 HMC5883L BMP180 Sensor Module

(0)

3-axis Gyro+Acceleration+Magnetic Fiel Air Pressure Module Power supply: 3-5V Build in ultra low noise linear LDO voltage regulator Built-in onboard filters, which reduce noise from motor and other high current electronics You can easily select two I2C address for MPU6050 by soldered jumper. RoboticsBD

BDT 730

BDT 730 tax incl.

BDT 730 tax excl.

BDT 730 tax incl.

BDT 0 Tax

BDT 730 tax excl.

BDT 0 Tax

BDT 730 tax incl.

In-Stock

In stock: 7

Reference: RBD-0690

ISD1820 S16 Voice Recording Module With Mic and Loudspeaker

(0)

BDT 280

BDT 280 tax incl.

BDT 280 tax excl.

BDT 280 tax incl.

BDT 0 Tax

BDT 280 tax excl.

BDT 0 Tax

BDT 280 tax incl.

In-Stock

In stock: 24

Reference: RBD-1302

Full-Color RGB SMD Led Module

(0)

Using 5050 full color LED RGB tricolor current-limiting resistance to prevent burn out Through the PWM adjusting three primary colors can be mixed to obtain different colors With a variety of single-chip interface Working voltage: 5V LED drive mode: Common cathode driver

BDT 70

BDT 70 tax incl.

BDT 70 tax excl.

BDT 70 tax incl.

BDT 0 Tax

BDT 70 tax excl.

BDT 0 Tax

BDT 70 tax incl.

In-Stock

In stock: 58

Reference: RBD-1575

5V 2 Channel Solid State Relay (SSR)

(0)

Part Number: G3MB-202P Power supply:5VDC/160mA Trigger Voltage (VDC):0 Switching Voltage (VAC):240@2A Isolation: Phototriac

BDT 355

BDT 355 tax incl.

BDT 355 tax excl.

BDT 355 tax incl.

BDT 0 Tax

BDT 355 tax excl.

BDT 0 Tax

BDT 355 tax incl.

In-Stock

In stock: 21

Reference: RBD-1758

Digital LCD Power Supply Tester for PC ATX/BTX/ITX 4Pin SATA HDD

(0)

Digital LCD Power Supply Tester for PC ATX/BTX/ITX 4Pin SATA HDD

BDT 1,190

BDT 1,190 tax incl.

BDT 1,190 tax excl.

BDT 1,190 tax incl.

BDT 0 Tax

BDT 1,190 tax excl.

BDT 0 Tax

BDT 1,190 tax incl.

In-Stock

In stock: 7

Reference: RBD-1928

HC-08 Bluetooth 4.0BLE Serial Port Module

(0)

Frequency: 2.4GHz ISM. Protocol: BLE 4.0. Max transmitting power: max. 4dBm. Modulation System: GFSK. Serial Baud Rate: 1200 to 115200 bps. Reference Distance: 80 meters.

BDT 950

BDT 950 tax incl.

BDT 950 tax excl.

BDT 950 tax incl.

BDT 0 Tax

BDT 950 tax excl.

BDT 0 Tax

BDT 950 tax incl.

In-Stock

In stock: 50

Reference: RBD-2331

Rotary Potentiometer Analog Knobs 8 Channel Module

(0)

8-channel rotary potentiometer module with I²C interface for easy integration Features 10K adjustable potentiometers for precise control of resistance Converts resistance changes into voltage output for microcontroller input Compatible with various microcontrollers, including Arduino and Raspberry Pi Compact module (80mm x 32mm) with simple wiring and...

BDT 640

BDT 640 tax incl.

BDT 640 tax excl.

BDT 640 tax incl.

BDT 0 Tax

BDT 640 tax excl.

BDT 0 Tax

BDT 640 tax incl.

In-Stock

In stock: 16

Gravity: Voice Recorder Module Robotics Bangladesh

Reference: RBD-2541

Brand: DFRobot

Gravity: Voice Recorder Module

(0)

Compact voice recorder module with record & play functions Supports up to 10 seconds of voice recording and playback Simple operation with press-to-record button control Compatible with 8Ω 3W speakers or external active speakers 3-pin digital interface for Arduino or microcontroller playback triggering Lightweight, easy integration for DIY and...

BDT 950

BDT 950 tax incl.

BDT 950 tax excl.

BDT 950 tax incl.

BDT 0 Tax

BDT 950 tax excl.

BDT 0 Tax

BDT 950 tax incl.

In-Stock

In stock: 8

Follow us on Facebook

Facebook