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Acoustic Model Description

The acoustic model is an essential file for speech recognition and must be integrated into the voice firmware. This document compiles the names and characteristics of the acoustic models corresponding to our company’s chips. Users can select the appropriate acoustic model based on the chosen chip model, supported Flash capacity of the chip or module, and the product’s application environment. Acoustic models can be selected and downloaded from the Language Model module on our Voice AI Platform.

CI13XX Series Chips

Chinese Acoustic Models

Model Name Model Number Model Size Model Characteristics Application Scenarios
Chinese Mandarin General V1_1.3M_V00487 G3-GE-CH-S-V00487.fefixbin3632 1.3MB Better recognition for standard Mandarin General Chinese use, environmental non-voice noise below 60dB, no strong vibration, loud noise (e.g., motors), or strong air currents from the device, with signal-to-noise ratio above 3dB
Chinese Mandarin General V2_1M_V00485 G3-GE-CH-S-V00485.fefixbin3632 1MB Better recognition for standard Mandarin General Chinese use, environmental non-voice noise below 60dB, no strong vibration, loud noise (e.g., motors), or strong air currents from the device, with signal-to-noise ratio above 3dB
Chinese Mandarin General V4_0.6M_V591 G3-GE-CH-S-V00591.fefixbin3632 0.6MB Better recognition for standard Mandarin, slightly lower noise resistance than larger models above 1MB, suitable for limited flash memory General Chinese use, environmental non-voice noise below 60dB, no strong vibration, loud noise (e.g., motors), or strong air currents from the device, with signal-to-noise ratio above 3dB
Chinese Mandarin Low False Alarm V1_1.25M_V557 G3-GE-CH-S-V00557.fefixbin3000 1.25MB Significantly lower out-of-vocabulary false alarms, slightly lower recognition rate, slightly lower noise resistance Specifically for Chinese Mandarin with low false alarm requirements
Chinese Mandarin Range Hood V1_1M_V00546 G3-YJ-CH-S-V00546.fefixbin3632 1MB Strong suppression of range hood noise, requires noise reduction Specifically for Chinese Mandarin range hoods
Chinese Mandarin Range Hood V2_1.3M_V00567 G3-YJ-CH-S-V00567.fefixbin3632 1.3MB Strong suppression of range hood noise, requires noise reduction Specifically for Chinese Mandarin range hoods
Chinese Mandarin Heating Table V1_1M_V547 G3-QNZ-CH-S-V00547.fefixbin3632 1MB Enhanced recognition for heating table commands; strong suppression of heating table noise; requires noise reduction Specifically for Chinese Mandarin heating tables
Chinese Mandarin Heating Table V4_1.3M_V571 G3-QNZ-CH-S-V00571.fefixbin3632 1.3MB Enhanced recognition for heating table commands; strong suppression of heating table noise; requires noise reduction Specifically for Chinese Mandarin heating tables
Chinese Mandarin Bathroom V1_1.3M_V583 G3-WY-CH-S-V00583.fefixbin3632 1.3MB Strong suppression of bathroom water noise, requires noise reduction Specifically for Chinese Mandarin bathroom applications

English Acoustic Models

Model Name Model Number Model Size Model Characteristics Application Scenarios
English Standard General V1_1M_V00488 G3-GE-EN-S-V00488.fefixbin3382 1MB Better recognition for British and American standard English General English use, environmental non-voice noise below 60dB, no strong vibration, loud noise (e.g., motors), or strong air currents from the device, with signal-to-noise ratio above 5dB
English Standard General V2_1.3M_V00570 G3-GE-EN-S-V00570.fefixbin3382 1.3MB Better recognition for British and American standard English General English use, environmental non-voice noise below 60dB, no strong vibration, loud noise (e.g., motors), or strong air currents from the device, with signal-to-noise ratio above 5dB