Small volume speech recognition module solution

Core chip] WTK6900 series speech recognition chip



【Introduction】

The WTK6900B01 voice module adopts the stamp port method, which is convenient for disassembly and assembly. The output can be controlled by voice commands, or it can be connected to a single-chip microcomputer, and the specified voice can be played through the serial port of the single-chip microcomputer. The operation is simple. Small size, high recognition rate, suitable for many occasions.

Main functions: 1. Recognition function: It can recognize the preset voice entry, and output the recognition result through the serial port and IO at the same time. 2. Play function: play the specified voice through the instruction of the single-chip microcomputer, and at the same time mark whether the voice is being played through the BUSY pin.
【Product Features】


(1) Recognition function: it can recognize the preset voice entry, and output the recognition result through the serial port and IO at the same time;

(2) The output can be controlled by voice commands;
(3) The specified voice can be played through the serial port of the single-chip microcomputer;
(4) Three output modes: serial port output, IO output, speaker playback;
(5) PWM output can directly drive 0.5W/8Ω speakers;
(6) With differential amplifier circuit, the voice recognition distance can reach 2-3 meters in a quiet environment;
(7) Plug-in SPI Flash to increase storage capacity;
(8) Multiple sets of entries can be stored, but only one set of entries can appear at the same time;
(9) Unspecified person speech recognition;
(10) Voice support 32 languages, such as Chinese, English, Cantonese, Japanese, etc.
More functions of WTK6900 speech recognition module can be customized.
【Applications】


(1) Toys: parrots, storytellers, music players, etc.;
(2) Switch category: light switch and brightness adjustment, etc.;
(3) Voice broadcast: prompt sound of small household appliances, etc.;
【Application Circuit】

The microphone is connected to the circuit as the input end of the voice, and the speaker, serial port, and IO are used as the output end
Ø When you need to play voice, you need to connect to the speaker;
Ø In the playback function, the WTK6900B01 voice recognition module is connected to the customer's MCU, which can be connected to the IO port of the MCU or the serial port of the MCU. Choose one of the two;

Industry Classification: Consumer Electronics

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