VOICE ENCODING DEVICE, AND VOICE ENCODING METHOD

摘要

Provided is a voice encoding device for acquiring a satisfactory sound quality by making sufficient use of a tendency according to the noisiness or noiselessness of an input signal to be encoded. In this voice encoding device, a weight adding unit (206) in a searching loop (204) of a fixed code note searching unit (202) uses a function calculated from a code vector synthesized with a target to be encoded and spectrum enveloping information, as a calculated value to become the searching reference of the code vector stored in a fixed code note, and adds the weight according to the pulse number to form the code vector, to that calculated value.