Embedded Via Voice

In this paper we present IBM Embedded ViaVoice (EVV), a speech recognizer for embedded devices. It is designed for grammar-based command and control applications with medium to large vocabularies. We show what algorithms and technologies were used to cope with the fundamental problems of embedded systems: limited CPU performance, slow memory, no floating point unit, and the division of the memory into ROM and RAM. The scalable EVV system described is capable of real-time performance on embedded platforms as slow as 40 MIPS with minimal RAM around 1 MB.