METHOD FOR CONVERTING AN AUDIO MULTIPLEX MODE WHEN RECEIVING AN ANALOG TV BROADCASTING TO ACCURATELY AND EFFECTIVELY SET A TV AS A CORRESPONDING AUDIO MULTIPLEX MODE

摘要

A kind of purpose: method, for currently receiving simulation TV broadcast it is arranged to that a spectators is allowed to convert an audio multiplex mode when listening a correct audio frequency, by rapidly and accurately identifying an audio multiplex mode in a received broadcast channel and a TV being accurately and effectively arranged as a corresponding voice-frequency-multichannel working method. Construction: it is judged whether the broadcast singal of an input is an analog broadcast signal (S101). If the broadcast singal of input is analog broadcast signal, an audio mode of the broadcast singal of input regularly checks (S102, S104). A count value relative to corresponding audio mode increases (S105). Count value is compared with a stable discrimination threshold value (S106). If count value is greater than or identical to a stable discrimination threshold value, an audio mode is arranged to a current channel by a user, is examined (S107). The obtained count value (S108a-108c) of one audio mode of the broadcast singal of input separates. For combining audio mode compared with the audio mode of the identification of broadcast singal, audio mode is converted into certain audio mode (S109a-S109c, S110b, S110c, S109, S111c).