Real-time assessment of call quality
US-2019355377-A1 · Nov 21, 2019 · US
Data correction apparatus, data correction method, and program
US11924368B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11924368-B2 |
| Application number | US-201917608823-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 7, 2019 |
| Priority date | May 7, 2019 |
| Publication date | Mar 5, 2024 |
| Grant date | Mar 5, 2024 |
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Abstract
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To improve accuracy of an evaluation in an acoustic quality evaluation test performed by comparing an evaluation target sound and a reference sound. A data correction apparatus 3 compares, in a call performed between a near-end terminal 1 and a far-end terminal 2 , an evaluation target sound in which a voice output from the near-end terminal 1 is recorded and a reference sound in which a voice spoken by a call partner using the far-end terminal 2 to correct test data used in a listening test for evaluating acoustic quality of the call. A correction target determination unit 31 determines, as a correction target section, a voiced section that does not include the voice of the call partner detected from an acoustic signal representing the reference sound. A correction execution unit 32 updates the correction target section of the acoustic signal representing the reference sound with a non-voice signal predetermined.
First claim
Opening claim text (preview).
The invention claimed is: 1. A data correction apparatus configured to compare, in a call performed between a plurality of communication terminals, an evaluation target sound in which a voice output from a first communication terminal of the plurality of communication terminals is recorded and a reference sound in which a voice spoken by a call partner using a second communication terminal of the plurality of communication terminals is recorded to correct test data used in evaluation of acoustic quality of the call, the apparatus comprising: processing circuitry configured to: execute a correction target determination processing configured to determine, as a correction target section, a voiced section that does not include the voice of the call partner detected from an acoustic signal representing the reference sound; and a correction execution processing configured to update the correction target section of the acoustic signal representing the reference sound with a non-voice signal predetermined. 2. The data correction apparatus according to claim 1 , wherein the non-voice signal is an acoustic signal recorded in a state in which the call partner is not speaking in a space in which the second communication terminal is present. 3. A non-transitory computer-readable storage medium which stores a program for causing a computer to operate as the data correction apparatus according to claim 2 . 4. The data correction apparatus according to claim 1 , wherein the non-voice signal is white noise. 5. A non-transitory computer-readable storage medium which stores a program for causing a computer to operate as the data correction apparatus according to claim 4 . 6. A non-transitory computer-readable storage medium which stores a program for causing a computer to operate as the data correction apparatus according to claim 1 . 7. A data correction method that compares, in a call performed between a plurality of communication terminals, an evaluation target sound in which a voice output from a first communication terminal of the plurality of communication terminals is recorded and a reference sound in which a voice spoken by a call partner using a second communication terminal of the plurality of communication terminals is recorded to correct test data used in evaluation of acoustic quality of the call, the method comprising: determining, by a correction target determination processing, as a correction target section, a voiced section that does not include the voice of the call partner detected from an acoustic signal representing the reference sound; and updating, by a correction execution processing, the correction target section of the acoustic signal representing the reference sound with a non-voice signal predetermined.
Assignees
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Classifications
- H04M3/2236Primary
Quality of speech transmission monitoring · CPC title
Processing in the frequency domain · CPC title
for measuring the quality of voice signals · CPC title
for discriminating voice from noise · CPC title
with means for applying test signals {or for measuring} · CPC title
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- What does patent US11924368B2 cover?
- To improve accuracy of an evaluation in an acoustic quality evaluation test performed by comparing an evaluation target sound and a reference sound. A data correction apparatus 3 compares, in a call performed between a near-end terminal 1 and a far-end terminal 2 , an evaluation target sound in which a voice output from the near-end terminal 1 is recorded and a reference sound in which a…
- Who is the assignee on this patent?
- Nippon Telegraph & Telephone
- What technology area does this patent fall under?
- Primary CPC classification H04M3/2236. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 05 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).