1. A method performed by one or more processing devices for processing an audio signal, comprising: filtering the low-frequency components and the high-frequency components of the audio signal to produce a plurality of subband signal outputs; converting the plurality of subband signal outputs to a scaled representation of a time-frequency grid such that the subbands are mapped over time; computing subband parameters by analyzing each tile of the time-frequency grid using a statistical analysis technique; finding a pattern in the scaled representation for reconstructing the high-frequency components based on the statistical analysis technique; encoding the subband parameters and the high-frequency components into an encoded bitstream based on the pattern; ordering the subband parameters and the high-frequency components in the encoded bitstream such that the subband parameters and the high-frequency components are in order of psychoacoustic importance and subject to the constraint that the subband parameters are placed first in the encoded bitstream followed by the high-frequency components; transmitting the encoded bitstream over a network channel having a bandwidth; and decoding the encoded bitstream to reconstruct the high-frequency components of the audio signal using the subband parameters in the encoded bitstream.