METHOD AND APPARATUS FOR MANAGING AUDIO SIGNALS IN A COMMUNICATION SYSTEM

• US 20180146289A1
• Filed: 11/22/2016
• Published: 05/24/2018
• Est. Priority Date: 11/22/2016
• Status: Active Grant

• Current Assignee: Motorola Solutions, Inc.
• Original Assignee: Motorola Solutions, Inc.
• Inventors: NAMM, JOSEPH C
• Granted Patent: US 10,595,127 B2
• Time in Patent Office: Days
• CPC Class Codes: H04H 20/59 for emergency or urgency
• CPC Class Codes: H04H 20/62 for transportation systems, e.g. in vehicles
• CPC Class Codes: H04H 60/13 Arrangements for device control affected by the broadcast information
• CPC Class Codes: H04H 60/37 for identifying segments of broadcast information, e.g. scenes or extracting programme ID
• CPC Class Codes: H04H 60/58 of audio determination or detection of speech characteristics in general G10L25/00; speech recognition in general G10L15/00
• CPC Class Codes: H04H 60/65 for using the result on users' side
• CPC Class Codes: H04R 2499/13 Acoustic transducers and sound field adaptation in vehicles
• CPC Class Codes: H04R 3/12 for distributing signals to two or more loudspeakers specially adapted for hearing aids H04R25/407
• CPC Class Codes: H04S 2400/11 Positioning of individual sound objects, e.g. moving airplane, within a sound field H04S2420/13 takes precedence
• CPC Class Codes: H04S 7/30 Control circuits for electronic adaptation of the sound field

Abstract

A method and system of managing audio signals within a communication system is provided. An audio signal is received on two or more independent audio paths within an operating environment, such as a vehicular operating environment (106). A controller identifies an audio source ID associated with the audio signal. The audio source ID may be a talkgroup ID, an individual ID, or a channel ID associated with the audio signal. The received audio signal from the independent audio paths is mixed and played out at a spatially separated unique location within the vehicle from other audio signals based on the sound source ID, each sound source ID having a unique location within the vehicle.

Claims

1. A method of managing audio signals within a communication system, comprising:

receiving an audio signal on two or more independent audio paths within an operating environment;

identifying, by a controller, an audio source ID associated with the audio signal, wherein the audio source ID comprises at least one of;

a talkgroup ID;

an individual ID; and

a channel ID associated with the audio signal; and

mixing the audio signal from the two or more independent audio paths on two or more speakers so that the audio signal is spatially resolved to play out at a single unique perceived location based on the audio source ID.

2. The method of claim 1, wherein the operating environment comprises:

a vehicle;

a mobile radio having a plurality of vehicular speakers mounted within the vehicle;

a portable radio seated within the vehicle, the portable radio having a speaker; and

the audio signal on two or more independent audio paths comprises an audio signal coming in to the mobile radio and the portable radio, the audio signal being played out at the single unique perceived location based on the audio source ID.

3. The method of claim 1, wherein mixing the audio signal from the two or more independent audio paths generates a grid of unique locations based on audio source ID.

4. The method of claim 1, further comprising:

receiving an additional different audio signal on the two or more independent audio paths for a different audio source;

repeating the steps of identifying through mixing for the different additional audio signal; and

playing out the additional mixed audio signal at one or more speakers thereby generating another single audio signal at another unique perceived location based on the audio source.

5. The method of claim 1, wherein the two or more independent audio paths, comprise:

a portable communication device having a speaker; and

a mobile vehicular radio having plurality speakers.

6. The method of claim 1, wherein the two or more independent audio paths, comprise:

an audio path associated with a first portable radio having a first speaker;

a second audio path associated with a second portable radio having a first speaker; and

a mobile vehicular radio having a plurality speakers.

7. The method of claim 1, wherein the two or more independent audio paths, comprise:

an audio path associated with a portable radio having a speaker; and

one or more audio paths associated with a dispatch center having a plurality of speakers.

8. A method of managing audio signals within a communication system, comprising:

receiving different audio signals within the communication system;

identifying, by a controller, an audio source ID, the audio source ID comprising one of;

a talkgroup ID or an individual ID, for each different audio signal of the different audio signals;

verifying a predetermined speaker assignment, based on the identified talkgroup ID, individual ID, or channel ID for each of the two different received audio signals;

assigning each different audio signal to its verified speaker assignment; and

playing out each different audio signal at each assigned speaker assignment.

9. The method of claim 8, further comprising:

receiving an additional audio signal without a predetermined speaker assignment; and

spatially allocating the additional audio signal to play out from a perceived unique speaker location.

10. The method of claim 8, wherein the assignments of the different audio signals to speaker locations are adjustable based on a current incident within which the communication system is operating.

11. The method of claim 8 wherein the different audio signals originate from independent audio paths associated with a portable radio worn by a user and a mobile radio within a public safety vehicle.

12. The method of claim 11, wherein the public safety vehicle comprises a plurality of speakers each speaker having a pre-assigned audio source ID associated therewith.

13. A communication system, comprising:

a mobile two-way radio having a plurality of speakers located within a vehicle;

a portable two-way radio having a speaker located within the vehicle;

a controller of the mobile two-way radio or the portable two-way radio for identifying a sound source ID for a received audio signal generated on independent audio paths, the sound source ID comprising at least one of;

a talkgroup ID, a individual ID, and a channel ID; and

the received audio signal from the independent audio paths being mixed to play out at a spatially separated unique location within the vehicle from other audio signals based on the sound source ID, each sound source ID having a unique location within the vehicle.

14. The communication system of claim 13, wherein each sound source ID is associated to a sound source location within a grid pattern.

15. The communication system of claim 14, wherein the controller identifies each sound source ID and maps each identified sound source ID to a location in the grid pattern associated with one of the plurality of speakers.

16. The communication system of claim 15, wherein the controller identifies each sound source ID and maps each identified sound source ID to a location in the grid pattern associated between two of the plurality of speakers.

17. The communication system of claim 16, wherein predetermined sound source IDs are have predetermined ranking with respect to each other which establish volume setting, muting, and location.

18. The communication system of claim 13, wherein a higher priority sound source ID is played out at a higher volume at a speaker location which is located closer to a user, while a lesser priority sound source ID is either muted or played out at a speaker location which is located farther from the user.