Voice-controlled camera operations

1. A computer-implemented method comprising:

receiving audio input at a computing device;

while the computing device is in a low-power state, performing a single voice recognition event by:

comparing the received audio input with an expected audio command associated with an image capture operation, the expected audio command comprising at least one word; and

based on the comparing, determining that the received audio input matches the at least one word; and

in response to performing the single voice recognition event, without receiving further audio input, both transitioning the computing device from a low-power state to an active state and causing an image capture device to capture one or more digital images.

2. The method of claim 1 wherein the audio input comprises voice data from one or more human voices.

3. The method of claim 1 wherein the comparing is based at least in part on training.

4. The method of claim 1 wherein the comparing is based at least in part on previously recognized audio commands.

5. The method of claim 1 wherein the comparing is based at least in part on one or more contextual cues.

6. The method of claim 1 wherein the expected audio command is based at least in part on a user modification.

7. The method of claim 6 wherein the expected audio command comprises a default audio command, and wherein the user modification comprises a modification of the default audio command.

8. The method of claim 1 wherein the expected audio command is a member of a set of audio commands associated with functionality of the computing device, the set of audio commands further comprising a keep-image command, a delete-image command, a record-video command, a stop-recording command, and a show-photo command.

9. The method of claim 1 wherein the expected audio command is associated with a macro comprising a series of plural functions of the computing device.

10. The method of claim 1 wherein the expected audio command is a member of a set of audio commands associated with functionality of a plurality of computing devices comprising a smart phone, a digital camera, a tablet computer, and a gaming console.

11. The method of claim 1 wherein the computing device comprises a smart phone, and wherein the comparing is performed by the smart phone.

12. The method of claim 1 wherein the comparing is performed at least in part at a remote server.

13. The method of claim 1 wherein the comparing is performed on a dedicated processor.

14. The method of claim 1 wherein the computing device comprises a smart phone, and wherein the smart phone comprises the image capture device.

15. The method of claim 1 further comprising, based on the determining, activating an image capture application on the computing device.

16. One or more computer-readable memory or storage devices having stored thereon computer-executable instructions operable to cause a mobile computing device to perform a method comprising:

receiving a voice command associated with an image capture application, wherein the mobile computing device comprises an image capture device controlled by the image capture application; and

responsive to the received voice command, and without receiving additional voice commands:

performing a single voice recognition event by determining that the received voice command includes an expected word or group of words; and

upon performing the single voice recognition event:

transitioning the mobile computing device from a low-power state to an active state;

activating the image capture application; and

capturing one or more digital images with the image capture device.

17. The computer-readable memory or storage devices of claim 16 wherein the one or more digital images comprise video images.

18. The computer-readable memory or storage devices of claim 16 wherein activating the image capture application comprises transitioning the image capture application from a background state to a foreground state.

19. A mobile device that includes one or more processors, a camera device, plural output devices, memory and storage media, the storage media storing computer-executable instructions for causing the mobile device to perform a method comprising:

receiving an image capture voice command when the mobile device is in a low-power state, the mobile device having stored thereon computer-executable instructions corresponding to a plurality of applications operable to be executed on the mobile device, the plurality of applications comprising an image capture application and one or more other applications;

capturing one or more digital images with the camera device through speech recognition while the mobile device remains in a device locked state by:

determining that the received image capture voice command comprises a match for an expected voice command associated with the image capture application using speech recognition; and

responsive to the determining:

transitioning from the low-power state to an active state;

activating the image capture application on the mobile device;

outputting feedback by one or more of the output devices, the feedback indicating that the received image capture voice command has been recognized; and

causing the camera device to capture one or more digital images.

20. The computer-readable memory or storage devices of claim 16 , wherein the activating the image capture application and capturing one or more digital images with the image capture device are performed while the mobile computing device remains in a device locked state.