CALCULATION OF CONVERTER SIGNAL-NOISE RATIO WITH REDUCED COMPLEXITY Russian patent published in 2017 - IPC G10L19/32 G10L19/02 

FIELD: sound.

SUBSTANCE: present invention relates to sound encoding and decoding facilities. Audio encoder includes conversion module, configured to determine set of spectral ratios based on said audio signal frame. Besides, encoder comprises encoding module with floating point, made with possibility to determine set of scaling factors and set of scaled values based on said set of spectral ratios; and encoding said set of scaling factors to obtain encoded set scaling factors. In addition, encoder comprises bits distribution and quantization module, configured to determine total number of available bits for set of scaled values quantization based on data transfer first target rate and based on number of bits used for set of coded scaling factors; determination of first control parameter, which serves as sign of total number of available bits distribution for quantization of scaled values from set of scaled values; and for set of scaled values quantization.

EFFECT: technical result consists in reduction of computational complexity of bits distribution process used in audio encoding/decoding.

32 cl, 12 dwg