WO2017143714A1 - Écouteurs munis d'un réglage automatique du volume, et procédé de réglage automatique du volume d'écouteurs - Google Patents

Écouteurs munis d'un réglage automatique du volume, et procédé de réglage automatique du volume d'écouteurs Download PDF

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Publication number
WO2017143714A1
WO2017143714A1 PCT/CN2016/088394 CN2016088394W WO2017143714A1 WO 2017143714 A1 WO2017143714 A1 WO 2017143714A1 CN 2016088394 W CN2016088394 W CN 2016088394W WO 2017143714 A1 WO2017143714 A1 WO 2017143714A1
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Prior art keywords
volume
sound
speaker
threshold
module
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Ceased
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PCT/CN2016/088394
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English (en)
Chinese (zh)
Inventor
李骐骥
陈胜利
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Shenzhen Shu Yuan Ke Ji Co Ltd
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Shenzhen Shu Yuan Ke Ji Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1083—Reduction of ambient noise
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
    • H04R2460/01—Hearing devices using active noise cancellation

Definitions

  • the present invention relates to the field of earphones, and in particular to a method for automatically adjusting a volume by automatically adjusting a volume of an earphone and an earphone.
  • the tuning earphone detects the volume of the earphone through a sound sensor disposed in the earmuff, and when the volume is too large, the volume is turned down or muted.
  • This type of tuning does not provide good protection for the ear. Because the sound collected by the sound sensor inside the earphone cover is actually the superposition of the audio output of the speaker and the ambient noise, which is equivalent to the sound of the ear. This can reduce the volume when the volume is higher than the human ear.
  • the external noise is high or low. Due to external noise, people cannot hear the audio output in the speaker, and the user cannot experience the music through the headphones.
  • the object of the present invention is to provide an earphone with automatic volume adjustment, which can automatically adjust the audio output of the speaker according to the change of the noise amount of the external environment, so that the ear volume of the earphone is suitable for the human auditory sense, effectively protecting the ear while providing better. Music experience.
  • An earphone that automatically adjusts the volume includes a headphone strap, an earmuff disposed at both ends of the earphone strap, a speaker disposed in the earcup, a manual tuning device for adjusting the volume of the speaker, and an automatic for adjusting the volume of the speaker a wireless module electrically connected to the speaker and the manual tuning device, two speakers are respectively disposed in two ear cups, and the automatic tuning device
  • the first sound sensor for detecting the noise level of the outside world the first sound sensor is disposed outside the ear cup; the second sound sensor for detecting the playing volume of the speaker, the second sound sensor is disposed in the ear cup;
  • the micro control The microcontroller is electrically connected to the first sound sensor, the second sound sensor and the speaker, respectively, for acquiring the noise volume and the playing volume for processing and controlling the volume of the speaker to be turned up or down according to the processing result.
  • Another object of the present invention is to provide a method for automatically adjusting the volume of a headset, and the method for automatically adjusting the volume includes the following steps:
  • the wireless module is paired with the audio device, and the noise level of the outside is collected by the first sound sensor and the noise volume is transmitted to the microcontroller, and then the speaker is collected by using the second sound sensor.
  • the playing volume is transmitted to the microcontroller; the microcontroller is used to acquire the noise volume and the playing volume for processing, and the height is adjusted or lowered according to the processing result.
  • the volume of the speaker is transmitted to the microcontroller; the microcontroller is used to acquire the noise volume and the playing volume for processing, and the height is adjusted or lowered according to the processing result.
  • the method for automatically adjusting the volume of the earphone and the earphone automatically adjusting the volume provided by the embodiment of the invention has the beneficial effects that: when the earphone is used for the first time, the person adjusts the volume to the volume suitable for the person by the manual tuning device, when the person is in the environment
  • the external sound volume is collected by the first sound sensor and transmitted to the microcontroller, and the microcontroller performs sound zone matching on the external noise volume, and determines whether to adjust the speaker volume according to the average value of the external noise volume in a certain period of time.
  • the volume of the speaker is captured by the second sound sensor to control the volume of the speaker to change the volume.
  • the audio output of the speaker can counteract the interference of external noise, guarantee the human hearing experience, and effectively protect the ear.
  • FIG. 1 is a schematic structural diagram of an earphone for automatically adjusting a volume provided by Embodiments 1 and 2 of the present invention
  • FIG. 2 is a schematic block diagram of an earphone for automatically adjusting the volume provided by Embodiments 1 and 2 of the present invention.
  • the earphone includes an earphone connection strap 101, two speakers 240, a manual tuning device 104, a wireless module 250, and a headset connection strap 101.
  • Two ear cups 102 at both ends, the speaker 240 is disposed in the earmuffs 102, and each of the ear cups 102 is provided with a speaker 240.
  • Manual tuning device 104 and speaker 240 It is electrically connected and used to adjust the volume of the speaker 240.
  • the manual tuning device 104 is provided with a function selection button such as play, pause, APP start, and the like, and the volume of the speaker 240 can be adjusted.
  • the wireless module 250 is disposed in the ear cover 102, and the wireless module 250 is electrically connected to the speaker 240 and the manual tuning device 104.
  • the wireless module 250 is used for pairing and connecting with an audio device such as a mobile phone, a tablet, a computer, an audio, etc.
  • the wireless module 250 is a Bluetooth module. It should be noted that the wireless module 250 can also be replaced by a Wifi device, an infrared pairing device, or the like.
  • An audio processor 260 is disposed in the audio tuning module 213.
  • the audio processor 260 is electrically connected to the tuning module 212, the wireless module 250, and the speaker 240, and processes the audio digital signal transmitted by the wireless module 250, and pushes the speaker 240. Play sound.
  • the earphone further includes an automatic tuning device 200.
  • the automatic tuning device 200 includes a first sound sensor 220, a second sound sensor 230, and a microcontroller 210.
  • the first sound sensor 220 is disposed outside the earmuff 102.
  • the first sound sensor 220 For detecting the noise volume of the outside, the second sound sensor 230 is disposed in the ear cover 102, and the second sound sensor 230 is used to detect the playing volume of the speaker 240.
  • the position of the second sound sensor 230 is set to correspond to the position where the speaker 240 is disposed, and the two speakers 240 are respectively disposed in the two ear cups 102.
  • the second sound sensor 230 is two.
  • the two second sound sensors 230 respectively correspond to the positions of the speakers 240 provided in the two ear cups 102.
  • the first sound sensor 220 and the second sound sensor 230 detect the volume in units of decibels (dB).
  • FIG. 2 is a schematic block diagram of the microcontroller 210 in the earphone of the automatic volume adjustment according to the embodiment.
  • the microcontroller 210 includes a receiving module 211, a tuning module 212, and an audio tuning module. 213.
  • the receiving module 211 is configured to input the noise volume from the receiving module 211.
  • the line zone matches and selects a matching zone from a plurality of zones preset in the tuning module 212.
  • the receiving module 211 receives the noise volume from the first sound sensor 220 and the playback from the second sound sensor 230.
  • the volume, tuning module 212 is configured to process the signal received by the receiving module 211 and output the processing result
  • the audio tuning module 213 is configured to control the audio processor 260 to increase or decrease the volume of the speaker 240 according to the processing result.
  • the tuning module 212 when the volume average of the noise volume in the first collection period exceeds the treble threshold, the tuning module 212 outputs an up volume control signal; when the noise volume is within the first acquisition period, the volume average is lower than the bass threshold.
  • the sound module 212 outputs a low volume control signal that is executed by the audio tuning module 213.
  • the direction of the arrow indicates the flow direction of the signal
  • the signal is transmitted to the receiving module 211, and the receiving module 211 transmits the signal to the tuning.
  • the module 212; the tuning module 212 processes the received signal and outputs the processing result, and the processing result signal is passed to the audio tuning module 213, which controls the audio processor 260 to cause the speaker 240 to execute the command to process the result.
  • the wireless module 250 is paired with the audio device.
  • the user adjusts the volume of the speaker 240 through the manual tuning device 104 according to the noise condition of the external environment, and the first sound sensor 220 collects the external noise of the earphone.
  • the signal transmits the external noise signal to the receiving module 211 of the microcontroller 210, and the second sound sensor 230 collects the sound signal of the speaker 240 and transmits the sound signal to the receiving module 211 of the microcontroller 210.
  • a plurality of sound zones are set in the tuning module 212, and the sound zones are separated by a sound threshold, and
  • the tuning module 212 performs a sound zone matching on the noise volume and selects a matching sound zone from a plurality of sound zones, the matching sound zone has a high sound threshold and a low sound threshold; the high sound threshold and the low sound threshold are sounds.
  • the treble threshold and the bass threshold are relative. For example, the same sound threshold is the adjacent two sounds.
  • the bass threshold of the larger zone in the zone is also the treble threshold of the smaller zone, and the tuning module 212 performs zone matching on the noise volume, that is, which level of the zone the noise volume is determined.
  • first The acquisition time period is an artificially set time.
  • the first acquisition time period is set to be less than 5 minutes. It should be noted that the time of the first collection period can be set according to user requirements. In this embodiment, the first collection period is set to 5s.
  • the tuning module 212 controls the speaker 240 to increase the volume, and the volume average of the noise volume during the first acquisition period is lower than the matching.
  • the bass threshold of the zone the tuning module 212 controls the speaker 240 to turn down the volume.
  • the tuning module 212 controls the speaker 240 to increase the volume to avoid the outside world.
  • the noise signal interferes with the in-ear signal and affects the listening experience.
  • the sound module 212 controls the speaker 240 to adjust the low volume without affecting the human hearing experience, but can protect the ear.
  • the method for automatically adjusting the volume of the earphone does not adjust the volume of the speaker 240 immediately after the external noise signal changes, but according to the mean value change of the external noise signal within a certain time (ie, the first acquisition time period). Judging whether or not to adjust the volume, the advantage of this is that it can more accurately determine the external environmental noise situation of the person, avoiding the sudden increase of the external noise signal, resulting in a sudden increase in the volume of the speaker 240. . At the same time, by performing the mean value statistics on the external noise signal, the volume does not change by itself during the statistical time, which also makes the sound change not too frequent.
  • the earphone includes an earphone connection strap 101, two speakers 240, a manual tuning device 104, a wireless module 250, and a headset connection strap 101.
  • Two ear cups 102 at both ends, the speaker 240 is disposed in the earmuffs 102, and each of the ear cups 102 is provided with a speaker 240.
  • the manual tuning device 104 is electrically connected to the speaker 240 and used to adjust the volume of the speaker 240.
  • the manual tuning device 104 is provided with function selection buttons such as play, pause, and APP activation, and the volume of the speaker 240 can be adjusted.
  • the wireless module 250 is disposed in the ear cover 102.
  • the wireless module 250 is electrically connected to the speaker 240 and the manual tuning device 104.
  • the wireless module 250 is used for pairing with an audio device such as a mobile phone, a tablet, a computer, an audio, and the like.
  • the wireless module 250 is a Wi-Fi module.
  • An audio processor 260 is disposed in the audio tuning module 213.
  • the audio processor 260 is electrically connected to the tuning module 212, the wireless module 250, and the speaker 240, and processes the audio digital signal transmitted by the wireless module 250, and pushes the speaker 240. Play sound.
  • the earphone further includes an automatic tuning device 200.
  • the automatic tuning device 200 includes a first sound sensor 220, a second sound sensor 230, and a microcontroller 210.
  • the first sound sensor 220 is disposed outside the earmuff 102.
  • the first sound sensor 220 For detecting the noise volume of the outside, the second sound sensor 230 is disposed in the ear cover 102, and the second sound sensor 230 is used to detect the playing volume of the speaker 240.
  • the position of the second sound sensor 230 is set to correspond to the position where the speaker 240 is disposed, and the two speakers 240 are respectively disposed in the two ear cups 102.
  • the second sound sensor 230 is two.
  • the two second sound sensors 230 respectively correspond to the positions of the speakers 240 provided in the two ear cups 102.
  • the first sound sensor 220 and the second sound sensor 230 detect the volume in units of decibels (dB).
  • FIG. 2 is a schematic block diagram of the microcontroller 210 in the earphone of the automatic volume adjustment according to the embodiment.
  • the microcontroller 210 includes a receiving module 211, a tuning module 212, and an audio tuning module. 213.
  • the receiving module 211 is configured to receive a noise volume from the first sound sensor 220 and a playback volume from the second sound sensor 230.
  • the tuning module 212 is configured to process the signal received by the receiving module 211 and output a processing result, and the audio tuning module 213 is for controlling the audio processor 260 to increase or decrease the volume of the speaker 240 according to the processing result.
  • the direction of the arrow indicates the flow direction of the signal
  • the first sound sensor 220 and the second sound After the sound sensor 230 detects the noise volume and the playback volume respectively, the signal is transmitted to the receiving module 211, and the receiving module 211 transmits the signal to the tuning module 212.
  • the tuning module 212 processes the received signal and outputs the processing result.
  • the resulting signal is passed to an audio tuning module 213 which controls the audio processor 260 to cause the speaker 240 to execute a command to process the result.
  • the wireless module 250 is paired with the audio device.
  • the user adjusts the volume of the speaker 240 through the manual tuning device 104 according to the noise condition of the external environment, and the first sound sensor 220 collects the external noise of the earphone.
  • the signal transmits the external noise signal to the receiving module 211 of the microcontroller 210, and the second sound sensor 230 collects the sound signal of the speaker 240 and transmits the sound signal to the receiving module 211 of the microcontroller 210.
  • a plurality of sound zones are disposed in the tuning module 212, and the sound zones are separated and set by a sound threshold.
  • the tuning module 212 performs sound zone matching on the noise volume and selects from a plurality of sound zones. Matching the sound zone, the matching sound zone has a treble threshold and a bass threshold; the treble threshold and the bass threshold are the volume values of the upper and lower ends of the sound zone, specifically, each zone has a treble threshold and a bass threshold, a treble threshold and The bass threshold is relatively speaking. For example, the same sound threshold is the bass threshold of the larger of the two adjacent zones, and is also the treble threshold of the smaller zone.
  • the tuning module 212 is The noise level is matched by the sound zone, which is to determine which level of the sound volume is in the sound zone.
  • first The acquisition time period is an artificially set time in this implementation.
  • the first acquisition period is set to be less than 5 minutes. It should be noted that the time of the first collection period can be set according to user requirements. In this embodiment, the first collection period is set to 5s.
  • the tuning module 212 controls the speaker 240 to increase the volume, and the volume average of the noise volume during the first acquisition period is lower than the matching.
  • the bass threshold of the zone the tuning module 212 controls the speaker 240 to turn down the volume.
  • the tuning module 212 controls the speaker 240 to increase the volume to avoid The external noise signal interferes with the in-ear signal and affects the auditory experience.
  • the volume of the external noise signal is lower than the bass threshold in the first acquisition period, the environment in which the user is located is relatively quiet, and the volume of the ear of the speaker 240 is larger and clearer, and the ear of the person is long. In a large volume environment, it is susceptible to damage. Therefore, controlling the speaker 240 to adjust the low volume through the tuning module 212 does not affect the human auditory experience, but can protect the ear.
  • the plurality of sound zones have a highest sound threshold, a warning sound threshold, and a lowest sound threshold.
  • the highest sound threshold and the lowest sound threshold are set according to the health tolerance range of the human ear.
  • the highest sound threshold is 120 dB when the speaker is
  • the tuning module 212 in the microcontroller 210 outputs a mute command to the audio tuning module 213, and the audio tuning module 213 automatically controls the speaker 240 to be muted to prevent damage to the human ear.
  • the manual tuning device 104 can be directly operated. More preferably, the method for automatically adjusting the volume of the earphone provided by the embodiment further includes the step of: when the manual tuning device 104 adjusts the speaker 240 When the volume or the automatic tuning device 200 adjusts the volume of the speaker 240, when the playback volume collected by the second sound sensor 230 is greater than the alert sound threshold during the second acquisition period, the microcontroller 210 controls the speaker 240 to turn down the volume to below the alert. Sound threshold.
  • the microcontroller 210 controls the speaker 240 to decrease the volume to below the warning sound threshold, where the second collection period is artificial.
  • the second acquisition time period is less than 90 minutes. Because the person uses the earphone for a long time in a large volume environment, the ear is easily damaged. In this embodiment, the second acquisition time period is set to 90 minutes.
  • the alert sound threshold is 85 dB, and the alert sound threshold is less than the maximum sound threshold.
  • the volume output of the speaker 240 is maintained at the state at the end of the last use, and if the last time the speaker is used, the volume output of the speaker 240 is greater than the highest sound threshold.
  • the receiving module 211 in the microcontroller 210 starts to receive.
  • the playing volume signal is transmitted from the second sound sensor 230, and the receiving module 211 transmits the playing volume signal to the tuning module 212.
  • the tuning module 212 When the playing volume is greater than the highest sound threshold of 120 dB, the tuning module 212 outputs the audio tuning module 213 to the audio tuning module 213. As a result of the volume output, the audio tuning module 213 controls the speaker 240 to adjust the volume to between the highest sound threshold and the lowest sound threshold.
  • the microcontroller 210 controls the speaker 240 to adjust the volume to a more suitable volume range, such as 50 dB to 70 dB.
  • the controller controls the speaker 240 to increase or decrease the volume, it is implemented by means of exponential increase or exponential decrease.
  • the advantage of the volume adjustment mode of exponential increase and exponential decrease is that when the mean value of the external noise signal is large, that is, when x is large, the adjustment amount of the volume y of the speaker 240 is larger, and the mean value of the external noise signal is smaller. That is, when x is small, the adjustment amount of the volume y of the speaker 240 is small.
  • the change of the external noise signal In a low-noise environment, the change of the external noise signal has little effect on the human hearing experience. In a high-noise environment, the change of the external noise signal has a greater impact on the human hearing, so that after setting, it is more in line with the human experience.

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  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
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  • Circuit For Audible Band Transducer (AREA)

Abstract

La présente invention concerne des écouteurs munis d'un réglage automatique du volume, et un procédé de réglage automatique du volume des écouteurs, appartenant au domaine techniques des écouteurs. L'invention comprend un module de réglage automatique du volume, et un module sans fil qui est utilisé pour la connexion à un dispositif audio, et la collecte automatique de signaux de bruit externe et de contrôle en temps réel des haut-parleurs des écouteurs pour modifier le volume implémenté au moyen du module de réglage automatique du volume. Grâce à la configuration de différentes zones audio, le procédé de réglage automatique de volume selon la présente invention implémente une mise en correspondance de zones audio des signaux de bruit externes et compare les signaux de bruit externes et le seuil d'aigus et le seuil de base desdits signaux de bruit dans la plage des zones audio, ce qui permet d'augmenter ou de diminuer automatiquement le volume du haut-parleur. La présente invention exerce ainsi un contrôle précis et améliore l'expérience utilisateur, conduisant ainsi à sa reconnaissance par le public.
PCT/CN2016/088394 2016-02-22 2016-07-04 Écouteurs munis d'un réglage automatique du volume, et procédé de réglage automatique du volume d'écouteurs Ceased WO2017143714A1 (fr)

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CN201610097439.XA CN105657595A (zh) 2016-02-22 2016-02-22 自动调整音量的耳机及耳机自动调整音量的方法
CN201610097439.X 2016-02-22

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WO2020173000A1 (fr) * 2019-02-18 2020-09-03 深圳市慧嘉智科技有限公司 Système et procédé de surveillance interactive
US10959022B1 (en) 2020-02-06 2021-03-23 Disney Enterprises, Inc. Adjusting the output of headphones based on external inputs

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