| 摘要 |
PURPOSE: A method for automatically transmitting a station break commercial message(SB CM) broadcasting by using a voice recognition technology is provided so that expenses can be cut down by automatically transmitting the SB CM broadcasting, instead of a manual operation by a voice call sign. CONSTITUTION: An analog voice call sign signal is received and digitalized in a pulse width modulation type by a predetermined sampling frequency and bit, thus generating N digital voice data(S1). N reference patterns and reference threshold values are generated by sequentially reading the N call sign voice data from a reference pattern and threshold value generating software module(S2). When voice recognition starts, the input analog voice call sign signal is digitalized into a predetermined sampling frequency and bit. Whenever a plurality of voice samples are inputted(S3), voice is analyzed in a voice analysis software module as long as an analysis period sample length, and an input pattern is also analyzed(S4). Each distance between the input pattern and the N reference patterns is calculated in a distance measuring software module(S5). The respective distances are compared with final threshold values(S7). When the distances are greater than the final threshold values, the procedure returns to the third step(S3). If not, the voice call sign starts(S8). When a specific voice call sign signal is voice-recognized, the SB CM broadcasting is automatically transmitted(S9). |
