Digitized speech in the form of words/ phrases on magnetic disc or phonemes in ROM are accessed in the desired order by a program and then converted from digital to analogue form for transmission.

• 程序可以接收磁盘中字、形式的数字化语音或只读存储器中的音素组成的数字化语音,并将数字形式转换成模拟形式,以便传输。