Analysis of audio quality using speech recognition and synthesis
AssigneeBritish Telecommunications public limited company
InventorsMichael Peter Hollier, Philip John Sheppard
Life of this patent
Estimating the term…
Abstract
An apparatus for monitoring signal quality in a communications link is provided which recognizes speech elements in signals received over the communications link and generates therefrom an estimate of the original speech signal, and compares the estimated signal with the actual received signal to provide an output based on the comparison.
Claims13
A method of analysis of the audio quality of a communications system carrying speech signals, comprising the steps of:
- applying speech recognition process to an output of the communications system to produce a speech recognition process output;
- generating, based on said speech recognition process output, an estimate of the original speech signal applied to the input of the communications system;
- comparing the estimated input signal with the output signal of the communications system;
- and
- generating a performance estimate based on said comparison.
An apparatus for monitoring signal quality in a communications link, the apparatus comprising:
- means for recognizing speech elements in signals received over the communications link;
- estimation means for generating, based on the recognized speech elements, an estimate of the original speech signal;
- comparison means for comparing the estimated signal with the received signal;
- and
- output means for providing a performance estimate based on the comparison.
An apparatus for monitoring signal quality in a communications link, comprising:
- a speech recognition circuit having an output comprising recognized elements in signals received over said communications link;
- an estimator generating an estimate of the original speech signal based on the output of the speech recognition circuit;
- a comparator comparing the estimated signal with the received signal;
- and
- an output circuit providing a performance estimate based on the comparison.
Dependencies are inferred from the claim text.