Low-delay hearing aid

The application discloses low latency hearing aid, it includes: at least one input unit for providing at least one sample stream of an electrical input signal of a first domain; at least one encoder configured to convert the at least one stream of samples into at least one stream of samples of an electrical input signal in a second domain; a processing unit configured to process at least one electrical input signal of the second domain; a decoder configured to convert the sample stream of the processed signal of the second domain into a sample stream of the processed signal of the first domain; wherein the at least one encoder is configured to convert a first number N1 of samples of the at least one stream of samples of the electrical input signal from the first domain into a second number N2 of samples in the at least one stream of samples of the electrical input signal of the second domain; the decoder is configured to convert the second number N2 of samples from the second domain into the first number N1 of samples of the first domain; n2 is greater than N1; at least a portion of the at least one encoder optimization and processing unit is implemented as a trained neural network.