| 摘要 |
In a signal processing apparatus, a speech coder (120) includes, as three sections for coding speech data by different algorithm, an Algorithm-A coding section (121), an Algorithm-B coding section (122) and an Algorithm-C coding section (123). A noise suppressor (110) includes, as three sections for suppressing background noise by different algorithm, an Algorithm-X noise suppress section (111), an Algorithm-Y noise suppress section (112) and an Algorithm-Z noise suppress section (113). A suppress algorithm switching control section (114) controls switching on the basis of information from a coding algorithm switching control section (124) such that an optimal one of the noise suppress sections (111, 112 or 113) may function in association with the coding section (121, 122 or 123) activated in the speech coder (120). <IMAGE> |
