Conversation management in a personal audio device

• US 9,613,622 B1
• Filed: 07/07/2014
• Issued: 04/04/2017
• Est. Priority Date: 03/03/2006
• Status: Active Grant

• Current Assignee: Cirrus Logic Incorporated
• Original Assignee: Cirrus Logic Incorporated
• Inventors: Melanson, John L.
• Primary Examiner(s): Chin, Vivian
• Assistant Examiner(s): FAHNERT, FRIEDRICH
• Application Number:
  US14/324,286
• Time in Patent Office: 1,002 Days
• Field of Search: 381 51, 381 74, 381106, 381103, 381108, 381 92, 704231-257, 379 8801- 8804, 375260, 375346, 4551861, 455343, 4555501, 367136, 345619, 725 47
• CPC Class Codes: G10L 15/20 Speech recognition techniques specially adapted for robustness in adverse environments, e.g. in noise, of stress induced speech G10L21/02 takes precedence
• CPC Class Codes: H03G 3/32 the control being dependent upon ambient noise level or sound level
• CPC Class Codes: H03G 9/005 of digital or coded signals
• CPC Class Codes: H03G 9/025 frequency-dependent volume compression or expansion, e.g. multiple-band systems H03G9/10, H03G9/18 take precedence

Abstract

A personal audio device that detects speech provides for improved interaction with others. When speech is detected in a microphone output signal of a microphone that measures ambient audio sounds, the audio program being reproduced by the personal audio device may be altered, by attenuating, muting or interrupting the program material. The speech may be provided to a headset that reproduces the program material. The direction of the speech can be used to determine whether the speech is from a person other than the use of the personal audio device.

Claims

1. A portable consumer audio playback device, comprising:

a compact consumer audio device housing;

an audio output adapted for connection to at least one headphone for transforming one or more output electrical signals to sound;

a microphone input for connection to a microphone element for sensing ambient sounds external to the housing and producing an ambient measuring audio signal;

an audio program source for providing input of audio program information; and

an audio processor for detecting speech in the ambient sounds from the ambient measuring audio signal, wherein the audio processor adjusts a characteristic of the audio program information in response to detection of the speech, wherein the audio processor further determines a direction of the speech in the ambient sounds and adjusts the characteristic of the audio program information in response to the direction of the speech indicating that the speech is not speech of a user of the portable consumer audio playback device.

2. The portable consumer audio playback device of claim 1, wherein the audio processor attenuates the audio program information in response to the detection of the speech.

3. The portable consumer audio playback device of claim 1, wherein the audio processor restores a volume level of the audio program information after a predetermined time has elapsed after the detection of the speech indicates that the speech has ended.

4. The portable consumer audio playback device of claim 1, wherein the audio processor provides the ambient measuring audio signal in the one or more output electrical signals in response to the detection of the speech, whereby the audibility of the speech by a user of the portable consumer audio playback device is enhanced.

5. The portable consumer audio playback device of claim 4, wherein the audio processor further attenuates the audio program information in response to the detection of the speech.

6. The portable consumer audio playback device of claim 1, wherein the compact consumer audio device housing is a housing of the at least one headphone wherein the audio output is adapted for connection to a transducer of the at least one headphone internal to the compact consumer audio device housing, wherein the microphone input receives a signal from a microphone integrated on the compact consumer audio device housing, and wherein the audio processor is integrated within the compact consumer audio device housing.

7. A method of processing audio program information in a portable consumer audio playback device, the method comprising:

reproducing audio program information by providing one or more output electrical signals to at least one headphone;

sensing ambient sounds external to a housing of the portable consumer audio device housing;

detecting speech in the ambient sounds sensed by the sensing;

determining a direction of the speech; and

adjusting a characteristic of the audio program information in response to the detection of the speech and in response to the direction of the speech indicating that the speech is not speech of a user of the portable consumer audio playback device.

8. The method of claim 7, further comprising attenuating the audio program information in response to the detection of the speech.

9. The method of claim 7, further comprising restoring a volume level of the audio program information after a predetermined time has elapsed after the detection of the speech indicates that the speech has ended.

10. The method of claim 7, further comprising providing the speech in the one or more output electrical signals in response to the detection of the speech to enhance the audibility of the speech by a user of the portable consumer audio playback device.

11. The method of claim 10, further comprising attenuating the audio program information in response to the detection of the speech.

12. The method of claim 7, wherein the portable consumer audio playback device is contained within a housing of the at least one headphone, and wherein the sensing is performed by a microphone integrated on the housing.

13. An integrated circuit for implementing at least a portion of a portable consumer audio playback device, comprising:

an audio output adapted for connection to at least one headphone for transforming one or more output electrical signals to sound;

a microphone input for connection to a microphone element for sensing ambient sounds external to the housing and producing an ambient measuring audio signal;

a program input for receiving audio program information;

an audio processor for detecting speech in the ambient sounds from the ambient measuring audio signal, wherein the audio processor adjusts a characteristic of the audio program information in response to detection of the speech, wherein the audio processor further determines a direction of the speech in the ambient sounds and adjusts the characteristic of the audio program information in response to the direction of the speech indicating that the speech is not speech of a user of the portable consumer audio playback device.

14. The integrated circuit of claim 13, wherein the audio processor attenuates the audio program information in response to the detection of the speech.

15. The integrated circuit of claim 13, wherein the audio processor restores a volume level of the audio program information after a predetermined time has elapsed after the detection of the speech indicates that the speech has ended.

16. The integrated circuit of claim 13, wherein the audio processor provides the ambient measuring audio signal in the one or more output electrical signals in response to the detection of the speech, whereby the audibility of the speech by a user of the portable consumer audio playback device is enhanced.

17. The integrated circuit of claim 13, wherein the audio processor further attenuates the audio program information in response to the detection of the speech.