Method and device for acute sound detection and reproduction
Earpieces and methods for acute sound detection and reproduction are provided. A method can include measuring an external ambient sound level (xASL), monitoring a change in the xASL for detecting an acute sound, estimating a proximity of the acute sound, and upon detecting the acute sound and its proximity, reproducing the acute sound within an ear canal, where the ear canal is at least partially occluded by an earpiece. Other embodiments are disclosed.
1. A device that can control ambient passthrough in an earpiece comprising:
a first memory that stores instructions; and
a processor that executes the instructions to perform operations, the operations comprising:
communicatively connecting to an earpiece, wherein the earpiece includes a first microphone, a second microphone, a speaker, a second memory and an earpiece processor;
sending an audio content gain value and an ambient sound gain value to the earpiece; and
sending an audio content signal to the earpiece, wherein the earpiece processor
applies the audio content gain value to the audio content signal to generate a modified audio content signal, wherein the earpiece processor
applies the ambient sound gain value to an ambient sound signal to generate a modified ambient sound signal, and wherein the earpiece processor
mixes the modified ambient sound signal with the modified audio content signal to generate a mixed signal.
2. The device according to claim 1 , wherein the earpiece processor calculates a noise level based upon a first microphone signal from the first microphone, wherein the earpiece processor modifies the mixed signal based upon the noise level.
3. The device according to claim 1 , wherein the earpiece processor generates the ambient sound signal from a first microphone signal from the first microphone.
4. The device according to claim 1 further including a user interface.
5. The device according to claim 1 , wherein the earpiece processor applies an ambient gain to a first microphone signal from the first microphone to generate the ambient sound signal.
6. The device according to claim 1 , wherein the device is a portable communication device.
7. The device according to claim 6 , where the device portable communication device is at least one of a phone, a watch, a tablet, earpiece, a laptop computer or a combination thereof.
8. A device that can control ambient sound passthrough comprising:
a first microphone that measures a first acoustic environment to generate a first microphone signal;
a second microphone that is positioned closer to a user's ear canal than the first microphone when the device is worn, where the second microphone generates a second microphone signal;
a speaker;
a memory that stores instructions; and
a processor that executes the instructions to perform operations, the operations comprising:
receiving an audio content signal;
modifying the audio content signal to generate a modified audio content signal;
modifying the first microphone signal to generate a modified first microphone signal;
modifying the second microphone signal to generate a modified second microphone signal;
generating an ambient sound signal from at least one of the modified first microphone signal, the modified second microphone signal or a combination thereof;
detecting an acute sound by analyzing at least one of the modified first microphone signal, the modified second microphone signal or a combination thereof;
modifying the modified audio content signal if an acute sound is detected to generate a new modified audio content signal;
generating a mixed signal by mixing the ambient sound signal with the modified audio content signal or the new modified audio content signal; and
sending the mixed signal to the speaker.
9. The device according to claim 8 , wherein the operations further comprise:
determining if the acute sound is a user's voice by analyzing the temporal and spectral characteristics of at least one of the modified first microphone signal, the modified second microphone signal or a combination thereof.
10. The device according to claim 9 , wherein the operations further comprise:
generating a noise signal from at least one of the modified first microphone signal, the modified second microphone signal, or both;
generating a noise reduction signal.
11. The device according to claim 10 , wherein the operations further comprise:
mixing the noise reduction signal with the mixed signal to generate a new mixed signal, and sending the new mixed signal to the speaker instead of the mixed signal.
12. The device according to claim 11 , wherein the operations further comprise:
sending a modified ambient signal to the speaker instead of the new mixed signal if the user's voice is detected.
13. The device according to claim 9 , wherein the operations further comprise:
sending a modified ambient signal to the speaker instead of the mixed signal if the user's voice is detected.
14. The device according to claim 9 , wherein the operations further comprise:
detecting whether the acute sound is at least one of a warning sound, siren, voice, specific noise type, or a combination, by analyzing the spectrum of at least one of the modified first microphone signal, the modified second microphone signal, the modified ambient sound signal, or a combination.
15. The device according to claim 14 , wherein the operations further comprise:
decreasing a volume of the modified audio content signal when a warning or siren is detected.
16. The device according to claim 14 , where the operations further comprise:
sending a notification signal to the speaker if the acute sound is a warning sound or siren.
17. The device according to claim 16 , wherein the warning sound is at least one of a bell, an emergency vehicle, the sound of a security system or a combination thereof.
18. The device according to claim 14 , wherein if an alarm is detected it is at least one of a police siren, an ambulance siren, a car honking or a combination thereof.
19. The device according to claim 8 , wherein the operations further comprise:
decreasing a volume of the modified audio content signal when a user's voice is detected.
20. The device according to claim 8 , wherein the acute sound is a voice.