System and method of detecting speech intelligibility of audio announcement systems in noisy and reverberant spaces
First Claim
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1. A method comprising:
- sensing the ambient sound in a region for a predetermined time interval;
analyzing the sensed ambient sound;
overlaying the ambient sound with a plurality of test audio signals having predetermined characteristics;
sensing the overlaid ambient sound; and
determining if speech intelligibility in the region has been degraded beyond an acceptable standard.
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Abstract
A system and method to detect and remediate unacceptable levels of speech intelligibility evaluates received test audio transmitted across and received in a space or region of interest. Intelligibility is improved by altering the rate, pitch, amplitude and frequency bands energy during presentation of the speech signal.
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Citations
23 Claims
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1. A method comprising:
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sensing the ambient sound in a region for a predetermined time interval;
analyzing the sensed ambient sound;
overlaying the ambient sound with a plurality of test audio signals having predetermined characteristics;
sensing the overlaid ambient sound; and
determining if speech intelligibility in the region has been degraded beyond an acceptable standard. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for remediation comprising:
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determining optimum remediation for a region;
determining if current and optimum remediation differ, and if so, carrying out at least a determined optimum amplitude. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
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Specification