Adaptive equalization system

摘要

An adaptive equalization system that adjusts the spectral shape of a speech signal based on an intelligibility measurement of the speech signal may improve the intelligibility of the output speech signal. Such an adaptive equalization system may include a speech intelligibility measurement module, a spectral shape adjustment module, and an adaptive equalization module. The speech intelligibility measurement module is configured to calculate a speech intelligibility measurement of a speech signal. The spectral shape adjustment module is configured to generate a weighted long-term speech curve based on a first predetermined long-term average speech curve, a second predetermined long-term average speech curve, and the speech intelligibility measurement. The adaptive equalization module is configured to adapt equalization coefficients for the speech signal based on the weighted long-term speech curve.

主权项

1. An adaptive equalization method, comprising:
calculating a speech intelligibility measurement of a speech signal by a computer processor; obtaining a first predetermined long-term average speech curve; obtaining a second predetermined long-term average speech curve; generating a weighted long-term speech curve by the computer processor based on the first predetermined long-term average speech curve, the second predetermined long-term average speech curve, and the speech intelligibility measurement; and adapting equalization coefficients for the speech signal by the computer processor based on the weighted long-term speech curve.