Application of Multimodal NLP Instruction Combined with Speech Recognition in Oral English Practice

Table 6

Semicontinuous HMM correctness test cases.

Data information
Data type	Close testing	Open testing
Number of test cases	22500	8200
Number of speakers	26	10
Speaker ratio of male to female	1 : 1	4 : 5
Test data format	16 KHz/mono/16 bit/PCM