CN100550610C

CN100550610C - A kind of based on the method for media player by adjusting volume protection hearing

Info

Publication number: CN100550610C
Application number: CNB2005101336985A
Authority: CN
Inventors: 刘越; 刘雅玲
Original assignee: YINGBAODA ZIXUN (TIANJIN) CO Ltd
Current assignee: YINGBAODA ZIXUN (TIANJIN) CO Ltd
Priority date: 2005-12-28
Filing date: 2005-12-28
Publication date: 2009-10-14
Anticipated expiration: 2025-12-28
Also published as: CN1819451A

Abstract

A kind of based on the method for media player by adjusting volume protection hearing, automatically carry out the automatic adjusting of media playing signal under the state of a little less than satisfying volume down, adjusting and reducing, this method may further comprise the steps: satisfying under the volume down weak condition, with media playing signal after regulate handling a little less than the volume down, after promptly finishing the reduction volume, carry out media signal again and play; When the discontented footsteps amount of media signal weakens condition, play-over current media signal; Judge that this play-overs signal and whether satisfy the condition play of continuing; If the media signal of being judged meets the condition that continues broadcast, then return this program initial condition, verify whether this signal also satisfies the volume down weak condition.Different with the conventional techniques means of relevant this technology in the conventional art; the present invention both can realize the automatic adjusting control of automatic medium voice signal; can under the prerequisite that does not influence the normal use of user, guarantee that user's hearing obtains the most positive protection again, and need not to improve the manufacturing cost of media player.

Description

A kind of based on the method for media player by adjusting volume protection hearing

Technical field

The present invention relates to a kind of sound control method, particularly relate to a kind of media player volume automatic regulating method that hearing protection can be provided based on media player.

Background technology

In the medical findings that can investigate, can know unfavorable listening device or bad use habit, can cause the harm that can not be ignored: wear earphone for a long time to the human body generation, to cause the audio sound straightening of louder volume to tap into pleasant interior damage hearing, cause temporary transient or expendable hearing impairment.

The subject matter that causes above-mentioned adverse consequences is because earplug directly contacts the sound of the therefore big volume of people's ear, particularly its radio-frequency head branch directly injures auditory system, endangers intensity certainly and also depends on other factors, such as the length of time, time is long more, and harmfulness is big more; Kind, continuity, mobility, or pulse feature; The susceptibility of people's ear and the condition in damaged of hearing, as ear whether infection or inflammation etc. being arranged is to vary with each individual, so difference according to circumstances, auditory system fatigue can cause reversing or irreversible sense of hearing injury.

At present, the media player produce market more and more enlarges, particularly the pocket product popularizes gradually, no matter be simple audio-visual media functional product, as mp3, mp4 or the like, still the novel integrated digital product that has the audio-visual media function, for example with the mobile phone or even the digital camera of media play function, product is closely bound up with people's life.The people, particularly young man of a lot of these digital products of use almost listens to for a long time by the song of media product broadcast or while seeing by earphone and listen every day.Therefore; in products such as media player, consider to add the design measure of protection hearing, that is: how to reduce sound and (particularly pass through various Portable media players, as CD; the sound that MP3 etc. send) to the injury of people's ear, this becomes the problem that such product user is paid special attention to.

In existing media player product, the general measure of the relevant hearing protection of producer, majority only limits to the improvement to tonequality, but so, and product cost can improve, even can have influence on the market sale of self product.And; do not solve the key of this hearing protection market demand: promptly how under the bad prerequisite of listening to custom (for example big volume, listen to for a long time and continuously) of unmanageable listener yet; improve the damage that reduces as far as possible even avoid the improper use because of this series products to cause to hearing by the Design and Features in Related product.

Proposed by the invention is a kind of based on the method for media player by adjusting volume protection hearing; this media player can be by process control; do not discover the listener under the condition of (do not influence and appreciate effect), regulate volume, thereby play the effect of protection hearing.

Summary of the invention

The present invention is just in order to solve the defective that above-mentioned prior art exists; and propose a kind of based on the method for media player by adjusting volume protection hearing; by reasonably making media player reduce the intensity of sound of source of sound automatically under the situation; do not influence simultaneously audibility, thereby realize the volume of media player is made the imperceptible automatic adjusting of listener.

The invention provides a kind of based on media player by regulating the method for volume protection hearing, carry out the media play volume under the state a little less than satisfying volume down automatically and regulate, this method may further comprise the steps:

Judge whether current media play state satisfies the weak condition of volume down;

The weak condition of described volume down is the arbitrary condition in the following condition:

Whether the accumulative total reproduction time reaches predetermined value;

Whether the accumulative total play list reaches some;

Whether the volume summation that has reduced reaches certain numerical value hearing threshold value;

Whether the background noise of surrounding environment reaches certain limit;

If satisfy the volume down weak condition, then regulate volume, carry out again afterwards or synchronous playing;

If discontented footsteps amount weakens condition, then play-over current media signal;

Judge whether to satisfy the condition that continues broadcast according to current broadcast state;

As denying medium voice signal broadcast adjusting end automatically;

If the media signal of being judged meets the condition that continues broadcast, then return initial condition.

Different with the conventional techniques means of relevant this technology in the conventional art; the present invention utilizes software to realize the automatic adjusting of media player voice signal; both can realize the automatic adjusting control of automatic medium voice signal; can not influence under the normal prerequisite of using of user again; by utilizing people " non-focal attention state "; use sound is regulated, thereby has guaranteed that user's hearing obtains the most positive protection, need not to improve the manufacturing cost of media player.

Be elaborated below in conjunction with embodiment and with reference to the technical scheme of accompanying drawing to this invention.

Description of drawings

Fig. 1 medium voice signal of the present invention is play self-regulating overall flow figure.

Embodiment

In order to prove absolutely technical scheme of the present invention, introduced " the non-state of focusing one's attention on " and " the non-state hearing thresholding of focusing one's attention on " especially at this.Generally, the sound-content that people carry out " understanding " to needs generally will be focused one's attention on and be listened to, and talks with, seeing that the lyrics listen song all to belong to this situation usually.Relatively, under the situation that does not need " understanding ", as song as a setting music appreciate, at this time, do not need to focus one's attention on.Because sound is just as a setting in this case, at this moment,, but still can hear and oneself want the sound heard even people's attentiveness painstakingly is not locked on the sound of being heard, such as music, reach the purpose of music appreciating.This state just is called as " the non-state of focusing one's attention on "." the non-state threshold of focusing one's attention on " then is meant people under this " the non-state of focusing one's attention on ", and people's ear can be heard the susceptibility of sound minimum value, i.e. the hearing threshold value.Volume is lower than this threshold value, and sound can become and be difficult to identification under " the non-state of focusing one's attention on ".The people can subjectively find this point, and concentrates the attentiveness of oneself to listen to sound, thereby has destroyed the non-state of focusing one's attention on of oneself.

Have under the considerable occasion, under so-called " the non-state of focusing one's attention on ", carry out.Under this " the non-state of focusing one's attention on ", people's ear is to the reaction of intensity of sound, and it is more insensitive to become.

Based on above analysis result, making proposed by the invention becomes possibility based on media player by the method for regulating volume protection hearing.Promptly can arrive the perception " state " of people, thereby the sound that carries out media player is automatically regulated by the software Auto-Sensing to sound.

As shown in Figure 1, play self-regulating overall flow for medium voice signal of the present invention, this flow process may further comprise the steps: at first, judge whether current media play state satisfies the weak condition of volume down, step 101; If satisfy the volume down weak condition, then regulate media signal, with media playing signal after regulate handling a little less than the volume down, step 102; Continue the playing media signal then, promptly go to step 103; If discontented footsteps amount weakens condition, then need not to carry out media signal and regulate, play-over current media signal, step 103; Then, judge that further this play-overs signal and whether satisfy the condition play of continuing, step 104; As denying the end of medium voice signal broadcast automatic control program; If the media signal of being judged meets the condition that continues broadcast, then return this program initial condition, need circulation execution in step 101.

Wherein, one of during whether " satisfy volume down weak condition " can meet the following conditions or its combination in any, or satisfy simultaneously:

1, whether the accumulative total reproduction time reaches predetermined value;

2, whether the accumulative total play list reaches some;

Whether the volume summation that 3, has reduced reaches certain numerical value (i.e. " hearing threshold value ");

4, whether the background noise of surrounding environment reaches certain limit, and this numerical value has to a certain degree influence to the hearing threshold value;

Wherein, " adjusting volume " can adopt any one in the following dual mode:

1, with certain amplitude moment reduction volume, for example moment descends 2 decibels, and choosing of this value should be less than the threshold value of hearing;

2, reduce volume gradually with certain amplitude,, continue two seconds, descend two decibels altogether as descending 0.5 decibel every 0.5 second;

Wherein, " whether satisfying the condition of music " one of can meet the following conditions or its combination in any, or satisfies simultaneously:

1, media player transfers the music state to by halted state;

2, media player transfers the music state to by halted state;

3, media player is in broadcast state all the time;

Below by a specific embodiment, further specify technology contents of the present invention.

At first, (prerequisite supposes that listener hearing is normal and it is quiet to listen to environment in experiment; Variable: volume, time, frequency) on the basis, sets up the threshold of hearing model, checking the technology of the present invention feasibility.

Experimentation comprises: tried the listener and set the best volume oneself listen to from main regulation, volume reduced by 1.5 decibels automatically in per 30 minutes, from reducing by 1 time to falling continuously 5 times, the experimenter does not discover and volume change; Further, will be set at 25,20,15,10,5 minutes respectively blanking time, the experimenter does not all discover and variation.

30min 25min 20min 15min 10min 5min

1 P P P P P P

2 P P P P P P

3 P P P P P P

4 P P P P P P

5 P P P P P P

P: represent Pass.

Experimental result can be verified following constant:

For a people with normal good hearing, volume decline 1.5dB, listener can not feel the influence that the variation of volume and be not subjected to blanking time.

According to practical operation and correlation technique document, calculate the decibel value of each volume level of media player, as shown in table 1:

Table 1

Experiment draws, and when the volume of media player is reduced to 013 grade, the experimenter has volume change and discovers.Referring to table 2, leave the noise level of suitable safe clearance.

Table 2

People's ear to two with intensity the sound of different frequency, can produce the different sensation of loudness.Volume value is greater than the state fault value of user under the non-state of focusing one's attention on, and the user can not discover the variation of volume

In this specific embodiment, handle as follows:

Definition volume fall (X:0.1～6 decibel)

#define?VolumeDownRange?X

The time interval value of definition volume every decline X decibel (Y:1s～60 minute)

#define?VolumeDownTimeLength?Y

Definition volume decibel safety value (Z:30～95 decibel)

#define?VolumeSafe?Z

Definition hearing fault value (W: vary with each individual 45～65 decibels)

#define?HearCriticalPoint?W

Music reproduction time is determined by present time and the difference of initial play time;

TimePeriod=present time-initial play time;

Time after reproduction time or setting volume is greater than the branch of test setting-up time spacing value or volume decline

The shellfish number is less than testing setting fall value or volume value greater than safety value, and the player volume decayed automatically when condition was set up.

if((timePeriod＞VolumeDownTimeLength)

II(volume_decreased_level＜VolumeDownRange)

II(VolumeSafe＞HearCriticalPoint))

{

Reduce volume; The sensation fault value of // volume value＜hearing

The replacement time;

}

Above content only is embodiments of the invention, and its purpose is not the restriction that is used for system and method proposed by the invention, and protection scope of the present invention is as the criterion with claim.Those skilled in the art all should drop within protection scope of the present invention its all conspicuous modification or variation about form and details of carrying out under the situation that does not depart from scope and spirit of the present invention.

Claims

One kind based on media player by regulating the method for volume protection hearing, carry out the media play volume under the state a little less than satisfying volume down automatically and regulate, this method may further comprise the steps:

Judge whether current media play state satisfies the weak condition of volume down;

The weak condition of described volume down is the arbitrary condition in the following condition:

Whether the accumulative total reproduction time reaches predetermined value;

Whether the accumulative total play list reaches some;

Whether the volume summation that has reduced reaches certain numerical value hearing threshold value;

Whether the background noise of surrounding environment reaches certain limit;

If satisfy the volume down weak condition, then regulate volume, carry out again afterwards or synchronous playing;

If discontented footsteps amount weakens condition, then play-over current media signal;

Judge whether to satisfy the condition that continues broadcast according to current broadcast state;

As denying medium voice signal broadcast adjusting end automatically;

If the media signal of being judged meets the condition that continues broadcast, then return initial condition.
2. as claimed in claim 1 based on the method for media player by adjusting volume protection hearing, it is characterized in that the weak condition of described volume down is arbitrary condition of following condition:

Whether the accumulative total reproduction time reaches predetermined value;

Whether the accumulative total play list reaches some;

Whether the volume summation that has reduced reaches the hearing threshold value;

Whether the background noise of surrounding environment reaches certain limit.
3. as claimed in claim 1 based on the method for media player by adjusting volume protection hearing, it is characterized in that the combination in any of the condition a little less than the described volume down for meeting the following conditions simultaneously:

Whether the accumulative total reproduction time reaches predetermined value;

Whether the accumulative total play list reaches some;

Whether the volume summation that has reduced reaches the hearing threshold value;

Whether the background noise of surrounding environment reaches certain limit.
As claim 2 or 3 described based on media player by regulating the method for volume protection hearing, it is characterized in that described hearing threshold value is that people's ear can be heard the susceptibility of sound minimum value under the non-state of focusing one's attention on.
5. as claimed in claim 4 based on the method for media player by adjusting volume protection hearing; it is characterized in that; the described non-state of focusing one's attention on; be meant when using media player; even people's attentiveness painstakingly is not locked on the sound of being heard, but still can hear the particular state of oneself wanting the sound heard.