Multichannel digital speech synthesizer employing adjustable parameters.

摘要

Device for decoding a number of linear-predictive-coded speech signals. The device comprises a digital noise generator, a pitch generator, a voiced/unvoiced switch, an adjustable ladder filter and a volume control. In order that the device can be used as efficiently as possible for a number of channels simultaneously, the device also comprises a preprocessing unit (9), a store (10) and a computing device (12), permitting the speech signals to be reproduced more accurately according as fewer channels are used at the output. When all channels are used, the quality of speech decreases. This variation of quality according to the number of channels used is achieved by varying the number of adjusting coefficients per channel.