Measuring speech intelligibility of an audio environment
An example method of operation may include initiating an automated tuning procedure, detecting via one or more microphones a sound measurement associated with an output of one or more speakers at two or more locations, determining a number of speech transmission index (STI) values equal to a number of microphones, and averaging the speech transmission index values to identify a single speech transmission index value.
1. A method for tuning an audio system, the method comprising:
identifying, by a control device, a plurality of speakers arranged at different positions in a location;
identifying, by the control device, a microphone, located at a middle position of the location;
receiving, by the control device, a plurality of outputs of the plurality of speakers from the microphone; and
calculating, by the control device, an average speech transmission index (STI) value for each speaker of the plurality of speakers based on one or more of a plurality of STI values.
2. The method of claim 1 , comprising
measuring the STI values while the plurality of speakers are concurrently providing output signals.
3. The method of claim 1 , further comprising:
generating, by the control device, a broad-band multitone ramp-up signal to a certain sound level at the microphone, and
measuring, by the control device, a gain and a sensitivity of each speaker, of the plurality of speakers, based on the broad-band multitone ramp-up signal.
4. The method of claim 1 , further comprising:
identifying, by the control device, a plurality of microphones, in the location having the plurality of speakers arranged at different positions in the location.
5. The method of claim 1 , wherein a microphone that is closest to a speaker located at the middle position of the location is the identified microphone.
6. The method of claim 1 , further comprising:
receiving, by the control device, a plurality of measurements of the plurality of outputs of the plurality of speakers from the microphone.
7. The method of claim 6 , wherein the average STI value for each speaker of the plurality of speakers is based on the plurality of measurements.
8. An apparatus for tuning an audio system, comprising:
a processor configured to:
identify a plurality of speakers arranged at different positions in a location;
identify a microphone, located at a middle position of the location;
receive a plurality of outputs of the plurality of speakers from the microphone; and
calculate an average speech transmission index (STI) value for each speaker of the plurality of speakers based on one or more of a plurality of STI values.
9. The apparatus of claim 8 , wherein the processor is further configured to:
measure the STI values while the plurality of speakers are concurrently providing output signals.
10. The apparatus of claim 8 , wherein the processor is further configured to:
generate a broad-band multitone ramp-up signal to a certain sound level at the microphone; and
measuring a gain and a sensitivity of each speaker, of the plurality of speakers, based on the broad-band multitone ramp-up signal.
11. The apparatus of claim 8 , wherein the processor is further configured to:
identify a plurality of microphones, in the location having the plurality of speakers arranged at different positions in the location.
12. The apparatus of claim 8 , wherein a microphone that is closest to a speaker located at the middle position of the location is the identified microphone.
13. The apparatus of claim 8 , wherein the processor is further configured to:
receive a plurality of measurements of the plurality of outputs of the plurality of speakers from the microphone.
14. The apparatus of claim 13 , wherein the average STI value for each speaker of the plurality of speakers is based on the plurality of measurements.
15. A non-transitory computer readable storage medium configured to store one or more instructions that when executed by a processor cause a processor to perform:
identifying a plurality of speakers arranged at different positions in a location;
identifying a microphone, located at a middle position of the location;
receiving a plurality of outputs of the plurality of speakers from the microphone; and
calculating an average speech transmission index (STI) value for each speaker of the plurality of speakers based on one or more of a plurality of STI values.
16. The non-transitory computer readable storage medium of claim 15 , wherein the one or more instructions further cause the processor to perform:
measuring the STI values while the plurality of speakers are concurrently providing output signals.
17. The non-transitory computer readable storage medium of claim 15 , wherein the one or more instructions further cause the processor to perform:
generating a broad-band multitone ramp-up signal to a certain sound level at the microphone, and
measuring a gain and a sensitivity of each speaker, of the plurality of speakers, based on the broad-band multitone ramp-up signal.
18. The non-transitory computer readable storage medium of claim 15 , wherein the one or more instructions further cause the processor to perform:
identifying a plurality of microphones, in the location having the plurality of speakers arranged at different positions in the location.
19. The non-transitory computer readable storage medium of claim 15 , wherein a microphone that is closest to a speaker located at the middle position of the location is the identified microphone.
20. The non-transitory computer readable storage medium of claim 15 , wherein the average STI value for each speaker of the plurality of speakers is based on a plurality of measurements received from the microphone of the plurality of outputs from the plurality of speakers.