Voice recognition method, voice recognition device, and electronic device

A voice recognition device, comprising:

• a processor, configured to acquire a detection voice and a to-be-recognized voice by sampling an input voice, and input the detection voice and the to-be-recognized voice into a noise type detection engine and a voice engine at the same time;
• configured to detect a storage area, and output, when a recognizable previous environment type exists in the storage area, a voice correction instruction according to a result of comparison between a detection environment type output by the noise type detection engine and the previous environment type;
• and configured to output a final recognition result after a confidence value of an initial recognition result output by the voice engine is adjusted according to a current environment type output by the noise type detection engine, wherein a length of voice data comprised in the detection voice is less than a length of voice data comprised in the to-be-recognized voice, and the previous environment type is a quiet environment or a noise environment;
• the noise type detection engine, configured to separately compare the detection voice and the to-be-recognized voice that are output by the processor with a voice training sample under a different sample environment;
• select a sample environment corresponding to a voice training sample that has a minimum difference with the detection voice, as a detection environment type;
• select a sample environment corresponding to a voice training sample that has a minimum difference with the to-be-recognized voice, as a current environment type;
• and store the current environment type to the storage area, and abandon the current environment type after preset duration;
• and
• the voice engine, configured to control correction on the received to-be-recognized voice according to the voice correction instruction output by the processor, and output an initial recognition result.

An electronic device, comprising a voice recognition device, a voice recording device connected to the voice recognition device, and a microphone connected to the voice recording device;

• wherein the voice recording device is configured to collect and record an input voice by using the microphone, and is configured to input the recorded input voice to the voice recognition device;
• wherein the voice recognition device is configured to:
• receive an input voice;
• acquire a detection voice and a to-be-recognized voice by dividing the input voice, wherein a length of voice data comprised in the detection voice is less than a length of voice data comprised in the to-be-recognized voice;
• select, after comparing the acquired detection voice with a voice training sample under a different sample environment, a sample environment corresponding to a voice training sample that has a minimum difference with the detection voice, as a detection environment type, wherein the sample environment comprises a quiet environment and a noise environment;
• detect a storage area in the voice recognition device;
• output, when a recognizable previous environment type exists in the storage area, a voice correction instruction according to a result of comparison between the detection environment type and the previous environment type, wherein the previous environment type is a quiet environment or a noise environment;
• control, according to the voice correction instruction, correction on the to-be-recognized voice, and output an initial recognition result;
• separately compare the received to-be-recognized voice with a voice training sample under a different sample environment, and select sample environment corresponding to a voice training sample that has a minimum difference with the to-be-recognized voice, as a current environment type;
• store the current environment type to the storage area, and abandon the current environment type after preset duration;
• and
• output a final recognition result after a confidence value of the initial recognition result is adjusted according to the current environment type.