HYBRID ENCODING METHOD AND APPARATUS FOR ENCODING SPEECH OR NON-SPEECH FRAMES USING DIFFERENT CODING ALGORITHMS

An audio encoding method includes dividing an energy spectrum of a current audio frame into P FFT energy spectrum coefficients; determining a minimum bandwidth of distribution, on spectrum, of first-preset-proportion energy of the current audio frame according to the energy of the P FFT energy spectrum coefficients of the current audio frame, wherein the minimum bandwidth of distribution, on spectrum, of first preset proportion energy of the current audio frame indicates sparseness of distribution, on the spectrum, of energy of the current audio frame; and determining to use a linear-prediction-based encoding method to encode the current audio frame in response to the minimum bandwidth of distribution is greater than a first preset value.