System and method for masking quantization noise of audio signals

The device for processing the audio signals and an of the upgrade audio coder (300) and is system and method. The encoder (300) comprises more than resolution conversion processor (310), a of the modulation overlapped to the contact (MLT) conversion processor and weighted processor (312), and quantizer (314), shielding threshold value spectrum processor (316), entropy encoder (318) and communication device (320), a invention (combined) for multiplexing from the signal of the receiving module is in which (MUX) on the single transmitting medium. The encoder (300) codes the audio signal by the resolution conversion and spectrum weighted and digital coding. Additionally, executing the digital coding signal parameter plastic to strengthen codes. The decoder comprises a decoding associated coding audio signals and encoder (300) are module.