Aural measurements from earphone output speakers
According to some embodiments of the present invention there is provided a method of using an earphone output speaker as a microphone for a phone call between two and/or more participants, or for measuring biometric data of a user. The method may comprise playing a received signal to an electro-acoustic output transducer of an earphone. The method may comprise instructing an audio processing circuit of a local client terminal to record an audio signal from the same electro-acoustic output transducer. The method may comprise calculating a voice signal and/or a biometric measurement based on a function combining the recorded audio signal, the received signal, and filtration coefficients, using a processing unit of the local client terminal. The method may comprise sending the voice signal and/or a biometric measurement through an output interface of the local client terminal.
1. A method of presenting a temperature, comprising:
playing an output audio signal to an electro-acoustic transducer;
instructing an audio processing integrated circuit of a client terminal to record an acoustic audio signal that includes the output audio signal that was played by the electro-acoustic transducer, using same said electro-acoustic transducer;
calculating a plurality of temperatures based on a function combining said acoustic audio signal, the output audio signal, and filtration coefficients; and
presenting at least one of said plurality of temperatures.
2. The method of claim 1 , wherein said electro-acoustic transducer is a microphone.
3. The method of claim 1 , wherein said electro-acoustic transducer is an output speaker of an earphone.
4. The method of claim 1 , wherein said electro-acoustic transducer is an external speaker connected to an earphone, and said plurality of temperatures comprises ambient and inner ear temperatures.
5. The method of claim 1 , wherein said electro-acoustic transducer is an internal speaker of a client terminal, and said plurality of temperatures comprises ambient and device temperatures.
6. The method of claim 1 , wherein said electro-acoustic transducer is located inside an ear canal of a target user during recording of said acoustic audio signal and one of said plurality of temperatures is an inner ear temperature correlated with a body temperature of said target user.
7. The method of claim 1 , wherein at least one of said plurality of temperatures is presented to a user through a user interface.
8. The method of claim 1 , wherein at least one of said plurality of temperatures is presented to a remote device through an output interface.
9. A non-transitory computer readable medium comprising computer executable instructions adapted to perform actions, the actions comprising:
playing an output audio signal to an electro-acoustic transducer;
instructing an audio processing integrated circuit of a client terminal to record an acoustic audio signal that includes the output signal that was played by the electro-acoustic transducer, using same said electro-acoustic transducer;
calculating a plurality of temperatures based on a function combining said acoustic audio signal, the output audio signal, and filtration coefficients; and
presenting at least one of said plurality of temperatures.
10. The non-transitory computer readable medium of claim 9 , wherein said electro-acoustic transducer is an external speaker connected to an earphone, and said plurality of temperatures comprises ambient and inner ear temperatures.
11. The non-transitory computer readable medium of claim 9 , wherein said electro-acoustic transducer is an internal speaker of a client terminal, and said plurality of temperatures comprises ambient and device temperatures.
12. The non-transitory computer readable medium of claim 9 , wherein said electro-acoustic transducer is located inside an ear canal of a target user during recording of said acoustic audio signal and one of said plurality of temperatures is an inner ear temperature correlated with a body temperature of said target user.
13. The non-transitory computer readable medium of claim 9 , wherein at least one of said plurality of temperatures is presented to a user through a user interface.
14. The non-transitory computer readable medium of claim 9 , wherein at least one of said plurality of temperatures is presented to a remote device through an output interface.
15. The method of claim 1 , wherein calculating the plurality of temperatures based on the function combining said acoustic audio signal, the output audio signal, and filtration coefficients includes determining a difference between the output audio signal and the acoustic audio signal to calculate the plurality of temperatures.
16. The method of claim 1 , wherein calculating the plurality of temperatures based on the function combining said acoustic audio signal, the output audio signal, and filtration coefficients includes determining a frequency response between the output audio signal and the acoustic audio signal to calculate the plurality of temperatures.
17. The method of claim 1 , wherein the filtration coefficients represent a frequency response of the electro-acoustic transducer.
18. The method of claim 1 , wherein the electro-acoustic transducer is simultaneously connected to an input mixer and an output mixer of an audio processing integrated circuit during the playing of the output audio signal and a recording of the acoustic audio signal.
19. The method of claim 1 , wherein the plurality of temperatures are temperatures of a surrounding environment of the transducer.
20. The method of claim 1 , wherein the plurality of temperatures are temperatures of an inner ear of a user.
21. The non-transitory computer readable medium of claim 9 , wherein calculating the plurality of temperatures based on the function combining said acoustic audio signal, the output audio signal, and filtration coefficients includes determining a difference between the output audio signal and the acoustic audio signal to calculate the plurality of temperatures.
22. The non-transitory computer readable medium of claim 9 , wherein calculating the plurality of temperatures based on the function combining said acoustic audio signal, the output audio signal, and filtration coefficients includes determining a frequency response between the output audio signal and the acoustic audio signal to calculate the plurality of temperatures.
23. The non-transitory computer readable medium of claim 9 , wherein the filtration coefficients represent a frequency response of the electro-acoustic transducer.
24. The non-transitory computer readable medium of claim 9 , wherein the electro-acoustic transducer is simultaneously connected to an input mixer and an output mixer of an audio processing integrated circuit during the playing of the output audio signal and a recording of the acoustic audio signal.
25. The non-transitory computer readable medium of claim 9 , wherein the plurality of temperatures are temperatures of a surrounding environment of the transducer.
26. The non-transitory computer readable medium of claim 9 , wherein the plurality of temperatures are temperatures of an inner ear of a user.