| 摘要 |
A telephone terminal apparatus is operated to exchange forward and backward voice signals between a pair of parties for conversation. In the telephone terminal apparatus, a voice processing block has a coder that codes a forward voice signal, and a decoder that decodes a backward voice signal. A communication block transmits the forward voice signal, which is outputted from the coder in a coded form, to the other party, and receives the backward voice signal from the other party in coded form which is inputted to the decoder. A tone generating block processes music data to generate a music tone signal. A controlling block operates when the music tone signal is set to sound a background music over the conversation for mixing the music tone signal generated by the tone generating block with the backward voice signal, which is outputted from the decoder, and for mixing the music tone signal generated by the tone generating block with the forward voice signal, which is inputted to the coder. |
