More about the structure of speech signal and the principles of its analysis
Boris Lobanov · IEEE Transactions on Audio and Electroacoustics · 1970
The speech signal is examined as part of a specific speech communication system. The results of such examination yield the following principles of this analysis. 1) The speech signal must be simultaneously and separately processed for each type of modulation. 2) The different forms of information must be extracted from the result of each detection process, and then combined.