Abstract: The present patent discloses an embedded transient detection module, which improves the quality of the audio encoder, at the same time requires less computational power, as compared to existing schemes. This module uses a long frame, when the input audio signal is in steady state, while a short frame is used, when there are transients in the signal.

Abstract: An audio encoding system that accepts an audio signal as an input to the system. The system includes a filter bank that splits the audio signal into a plurality of frames, and a bit allocation unit that assigns a number of bits for a current frame of the plurality of frames. The system further includes a scale factor unit that calculates a scale factor, identifies a block type of a first block of a current frame, identifies a block type of a second block consecutive to the first block, and reuses a scale factor of the first block for the second block, when the block type of the first block and the block type of the second block match. The system additionally includes a quantization and coding unit that quantizes and codes the signal, and a bit rate checker that verifies whether a bit rate requirement is satisfied.