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System and method of smart audio logging for mobile devices

a mobile device and audio logging technology, applied in the field of audio and speech signal capture, can solve the problems of poor quality of recorded music, achieve the effects of enhancing the audio input signal, suppressing background noise, and enhancing the signal

Inactive Publication Date: 2015-11-12
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patent describes a method for a mobile device to capture audio through a microphone and process it to reduce background noise. The device can detect the start of a recording and determine certain parameters for capturing the audio. It can then adjust its capture settings and capture the second part of the audio. The device can also encode the audio to stored it locally and can decide on a long-term storage location based on priority. The technical effects of this patent include improved quality of audio input and efficient storage of audio data on the mobile device.

Problems solved by technology

Although voice recorders can record some music signals, the quality of recorded music is typically not superb because the voice recorder is optimized for speech characteristics uttered by a human vocal tract.

Method used

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  • System and method of smart audio logging for mobile devices
  • System and method of smart audio logging for mobile devices

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first embodiment

[0124]FIG. 26 is a diagram of single microphone ON and OFF control. In contrast to FIG. 25, a microphone may be configured to be selectively ON 2520 even during the period that a mobile device is in idle mode 2550. A microphone may be configured to be selectively ON according to the context information S600 of the Audio Input S270. In one embodiment, this feature may be desirable for the Passive Audio Monitoring State S1, the Active Audio Monitoring State S2, or the Audio Monitoring State S4.

second embodiment

[0125]FIG. 27 is a diagram of single microphone ON and OFF control. In contrast to FIG. 26, a microphone may be configured to be consistently ON 2700 even during the period that a mobile device is in idle mode 2550. In such a case, power consumption of the system may be increased while a microphone is turned on. In one embodiment, this feature may be applicable to the Passive Audio Monitoring State S1, the Active Audio Monitoring State S2, the Audio Monitoring State S4, or the Active Audio Logging State S3 S5.

[0126]FIG. 28 is a diagram of a first embodiment of multiple microphones ON and OFF control. In one embodiment, one or more microphones may be configured to operate in a similar way to the conventional system. In other words, one or more microphones may only be turned on during active voice call or during video recording or any other applications requiring active usage of one or more microphones in response to user's manual selection. However, the other microphones may be confi...

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Abstract

A mobile device that is capable of automatically starting and ending the recording of an audio signal captured by at least one microphone is presented. The mobile device is capable of adjusting a number of parameters related with audio logging based on the context information of the audio input signal.

Description

RELATED APPLICATIONS[0001]A claim of priority is made to U.S. Provisional Application No. 61 / 322,176 entitled “SMART AUDIO LOGGING” filed Apr. 8, 2010, and assigned to the assignee hereof and hereby expressly incorporated by reference herein.BACKGROUND[0002]I. Field[0003]The present disclosure generally relates to audio and speech signal capturing. More specifically, the disclosure relates to mobile devices capable of initiating and / or terminating audio and speech signal capturing operations, or interchangeably logging operation, based on the analysis of audio context information.[0004]II. Description of Related Art[0005]Thanks to the power control technology advance in Application Specific Integrated Circuits (ASIC) and increased computational power of mobile processors such as Digital Signal Processor (DSP) or microprocessors, an increasing number of mobile devices are now capable of enabling much more complex features which were not regarded as feasible until recently due to the ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): G11B20/10G10L25/78H04M1/72433
CPCG11B20/10527G11B2020/10546G10L25/78G10L17/00G10L2015/088H04M1/656H04M1/6008H04M1/72433G11B20/10G10L19/00G10L21/02
Inventor LEE, TE-WONEL-MALEH, KHALED HELMIYOO, HEEJONGSHIN, JONGWON
Owner QUALCOMM INC
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