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Audio transmission channel quality assessment

A technology of transmission channel and quality, which is applied in voice analysis, voice recognition, image communication, etc., and can solve problems such as inability to effectively ensure high-quality audio transmission throughout a call

Active Publication Date: 2015-12-23
BOSE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Testing of the transmission channel is therefore not effective in ensuring high-quality audio transmission throughout the call

Method used

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  • Audio transmission channel quality assessment
  • Audio transmission channel quality assessment
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Embodiment Construction

[0013] Facilitates the audio portion of the communication during a two-party or multi-party phone call or multimedia session if the parties experience degraded audio transmission quality. This result can be achieved by determining the characteristics of the speech at the near end where the speech is spoken and determining the same characteristics of the same speech at the far end where the speech is delivered to the listener. A comparison of the speech characteristics determined at each end can then be made. If the comparison fails a predetermined quality metric (typically a metric determined to indicate unacceptably reduced intelligibility), all parties in the call may be notified. Alternatively, only the speaker is notified of the question. This enables the speaker to take action to correct or compensate for the problem, for example by speaking more slowly or repeating the last utterance the speaker was notified to be incomprehensible. Also make sure the listener is aware ...

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Abstract

A device, system and method for audio transmission quality assessment that occurs during the transmission. A transmission channel such as the internet is used to transmit speech that is spoken by a human speaker, captured at a first end, and transmitted over the transmission channel for reproduction at a second end. The processors at each end of the transmission channel are configured to determine one or more characteristics of the speech such as phonemes. The phonemes are transmitted over a back channel of the transmission channel to a processor that compares the speech characteristics that were determined at both ends of the call. The participants are notified of a transmission problem that has had an effect on the intelligibility of the speech that was reproduced at the far end if the comparison does not meet a predetermined quality metric.

Description

technical field [0001] This disclosure relates to notifying a sender when the quality of an audio transmission is poor. Background technique [0002] Audio communication over transmission channels, especially wireless communication and communication over the Internet or other networks with variable signal paths, typically occurs without direct feedback to the speaker and the recipient of the quality of the audio delivered to the recipient. Complex, expensive transmission channel test systems can be used by skilled engineers to evaluate a specific communication channel at a specific point in time as a means for establishing high quality audio communication over a fixed path. However, computer networks and wireless-based communication transport channels are often dynamic during telephone calls or multimedia sessions. Testing of the transmission channel is therefore not effective in ensuring high quality audio transmission throughout the call. SUMMARY OF THE INVENTION [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L25/69G10L15/26
CPCG10L15/26G10L25/69H04M3/2236H04M2201/18H04N7/147G10L25/60H04M3/56
Inventor M·J·德利桑蒂L·扎米尔
Owner BOSE CORP