Neural network chip for ear-worn device

A hearing aid, comprising:

• a neural network chip, comprising:
• a plurality of tiles arranged in a tile array, each tile comprising memory, a number of multiplier-accumulator circuits (MACS) in a range of 16-128 MACs, and routing circuitry;
• wherein:
• the memory of each tile is configured to store a portion of elements of a matrix A comprising weights of a recurrent neural network;
• each tile is configured to receive and store elements of an activation vector X, wherein the activation vector X is derived from an input audio signal;
• all or a subset of the plurality of tiles are configured to perform a matrix-vector multiplication A*X by performing multiply-and-accumulate sub-operations in parallel among all or the subset of the plurality of tiles;
• routing circuitries of tiles in each respective row of tiles in the tile array are configured to combine results of the multiply-and-accumulate sub-operations;
• and
• all tiles in a column of the tile array are configured to receive same elements of the activation vector X.