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Control method of sound producing, sound producing apparatus, and portable apparatus

A technology for generating devices and control methods, applied in the direction of amplification control, compression/expansion of digital/encoded signal volume, compression/expansion of non-tuned/low-frequency amplifier volume, etc.

Active Publication Date: 2013-10-23
HTC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This power limitation to drive keeps the speaker's maximum excursion and temperature rise within safe limits

Method used

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  • Control method of sound producing, sound producing apparatus, and portable apparatus
  • Control method of sound producing, sound producing apparatus, and portable apparatus
  • Control method of sound producing, sound producing apparatus, and portable apparatus

Examples

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Embodiment Construction

[0042] The following provides embodiments of a control method, a control device, a sound generating device, and a portable device equipped with the control device.

[0043] like figure 1 As shown, it is a flowchart of a control method of a speaker system according to an embodiment. figure 2 The structure of the control device of the loudspeaker SK according to an embodiment is shown, which can be used to perform such as figure 1 method shown. like figure 2 The illustrated structure of the control device 1 includes a compensation unit 11 , a gain unit 13 , and a feedback unit 15 . exist figure 2 Among them, an input sound signal (or referred to as a first sound signal) Sa1 is amplified by the amplifier AMP and reproduced by the speaker SK.

[0044] This control method enhances sound quality, compensates for distortions reproduced as audible sound by a speaker system, and protects the speaker system for one or more factors. For example, the reproduced audible sound is l...

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PUM

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Abstract

Control method and apparatus for a speaker system and a mobile apparatus are provided. In an embodiment, the control apparatus includes a feedback unit, a compensation unit, and a gain unit. The feedback unit, in response to at least one feedback signal from a speaker, is for generating at least one detected parameter. The compensation unit, in response to a first audio signal, is for generating a second audio signal, wherein the second audio signal is generated selectively by compensation according to a first model for the speaker, a first detected parameter of the at least one detected parameter, the first audio signal, and a gain value. The gain unit, coupled to receive the second audio signal and coupled to receive one or more of the at least one detected parameter, is for outputting the gain value and generating a third audio signal according to the gain value.

Description

technical field [0001] The present invention relates to a sound generation control method, a sound generation device and a portable device. Background technique [0002] A loudspeaker used to produce audible sound is generally limited by its maximum excursion, temperature rise, transducer nonlinearity, and nonlinearity caused by its corresponding amplifier. As a result, manufacturers determine how to drive the speaker, generally, driving the speaker at rated power for longer periods of time and driving the speaker at maximum power for shorter periods of time. This power limitation for driving limits the maximum excursion and temperature rise of the loudspeaker to a safe range. In order to reproduce a signal with a large dynamic range without distortion, the loudspeaker becomes less loud, especially in handheld devices that operate under power-constrained conditions. As a result, dynamic range compression techniques have been utilized in loudspeaker systems for decades to m...

Claims

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Application Information

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IPC IPC(8): H04R29/00
CPCH04R29/001H04R3/007H03G11/00H04R3/00H04R3/02H03G7/002H03G7/007
Inventor 郑志强孙廷玮唐汉熙
Owner HTC CORP
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