Sound adjusting apparatus

Abstract

By adjusting the frequency of the background audio, effects such as concentration improvement, sleep, stress relief, and meditation can be achieved.SOLUTION: The sound adjustment device 100 includes a background sound source 110, an external sound source receiver 120, a frequency adjuster 130, a mixer 140 and an outputting port 150, wherein the background sound source 110 is used for providing a background audio B10. The background audio B10 is monaural audio. The external audio receiver 120 is configured to receive an external audio E10 from the outside. The frequency adjuster 130 is configured to receive the background audio B10 and adjust the background audio B12 into a left-ear background audio B14 and a right-ear background audio LA. The first frequency of the left-ear background audio B12 and the second frequency of the right-ear background audio B14 have a frequency difference value.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an adjustment device, and more particularly to an acoustic adjustment device. [Background technology]

[0002] With the rapid advancement of science and technology and the rise of audiovisual content, people increasingly use headphones to listen to music or enjoy audiovisual content without disturbing those around them. However, how to improve the headphone experience has been a constant challenge for the headphone industry. Summary of the Invention [Problem to be solved by the invention]

[0003] The present invention provides a sound control device that allows a user to perceive binaural beats. [Means for solving the problem]

[0004] The sound adjustment device of the present invention includes a background sound source, an external sound source receiver, a frequency adjuster, a mixer, and an output port. The background sound source is used to provide background audio. The background audio is mono audio. The external sound source receiver is used to receive external audio from the outside. The frequency adjuster is used to receive the background audio and adjust it into left-ear background audio and right-ear background audio. A first frequency of the left-ear background audio and a second frequency of the right-ear background audio have a frequency difference value. The mixer is used to mix the external audio and left-ear background audio into left-ear audio, and to mix the external audio and right-ear background audio into right-ear audio. The output port is used to output the left-ear audio to a left-ear speaker and output the right-ear audio to a right-ear speaker.

[0005] In one embodiment of the above sound adjustment device, the mixer further includes, during mixing, adjusting a volume of the left-ear background audio in the left-ear audio and adjusting a volume of the right-ear background audio in the right-ear audio.

[0006] In one embodiment of the above sound control device, the external sound source receiver is a wireless receiver.

[0007] In one embodiment of the sound adjustment device, the external audio is binaural audio including left-ear external audio and right-ear external audio, a mixer is used to mix the left-ear external audio and left-ear background audio into the left-ear audio, and a mixer is used to mix the right-ear external audio and right-ear background audio into the right-ear audio.

[0008] In one embodiment of the sound control device, the background sound source uses an algorithm to generate the background audio.

[0009] In one embodiment of the sound control device, the background audio is rain audio.

[0010] In one embodiment of the sound control device, the background audio is pre-recorded and stored in the background audio source. [Effects of the Invention]

[0011] Based on the above, in the sound control device of the present invention, the sound waves received by both ears have a frequency difference value, and the user can not only hear the sound waves, but also produce a corresponding effect. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a schematic circuit block diagram of an audio control device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0013] FIG. 1 is a circuit block schematic diagram of an audio adjustment device according to an embodiment of the present invention. Referring to FIG. 1, the audio adjustment device 100 of this embodiment includes a background sound source 110, an external sound source receiver 120, a frequency adjuster 130, a mixer 140, and an output port 150. The background sound source 110 is used to provide background audio B10. The background audio B10 is monaural audio. The frequency adjuster 130 is used to receive the background audio B10 and adjust it to left-ear background audio B12 and right-ear background audio B14. A first frequency of the left-ear background audio B12 and a second frequency of the right-ear background audio B14 have a frequency difference value.

[0014] Because the background audio B10 is monaural audio, there is no difference between the portion of it that is output to the left ear speaker 52 and the portion that is output to the right ear speaker 54. Even if the frequency adjuster 130 adjusts the frequency of the background audio B10 and separates it into left ear background audio B12 and right ear background audio B14, this does not significantly affect the sound heard by the user. Furthermore, because the background audio B10 itself is not a major part that the user is concerned about, the impact on the listening experience is reduced.

[0015] The external sound source receiver 120 is used to receive external audio E10 from the outside. The mixer 140 is used to mix the external audio E10 and left-ear background audio B12 into left-ear audio L10, and to mix the external audio E10 and right-ear background audio B14 into right-ear audio R10. In other words, the external audio E10 is not frequency-adjusted by the frequency adjustment unit 130, and only the background audio B10 is frequency-adjusted by the frequency adjustment unit 130. Therefore, the external audio E10 can be faithfully output from the left-ear speaker 52 and the right-ear speaker 54 without modulation and presented to the user.

[0016] After mixing by mixer 140, output port 150 outputs left ear audio L10 to left ear speaker 52 and right ear audio R10 to right ear speaker 54.

[0017] Brain waves (EEG) are electrical vibrations generated by the activity of neurons in the human brain and can also be described as the rhythm of brain cell activity. The human brain constantly generates brain waves. EEGs, classified by frequency, include at least beta, alpha, theta, delta, and gamma waves. Generally, when a person is in stage 3 of non-rapid eye movement sleep, their EEGs are typically delta waves (frequency 0.5 Hz to 4 Hz). When a person is in deep sleep, dreaming, deep meditation, or a subjectively intense state, their EEGs are typically theta waves (frequency 4 Hz to 8 Hz). When a person is daydreaming, gradually losing consciousness, experiencing inspiration, or experiencing a state of mind and body relaxation and focus, their EEGs are typically alpha waves. When a person is relaxed yet focused, or processing previously received information, their EEGs are typically beta waves. However, research has shown that inducing the human brain to produce different EEGs can affect their state of mind. For example, when a person's brain is induced to produce alpha waves, the person experiences inspiration, feels relaxed, and is focused.

[0018] By adjusting the frequency of the background audio B10 via the frequency adjuster 130, a frequency difference value between the first frequency of the left ear background audio B12 and the second frequency of the right ear background audio B14 can be set, so that the user's brain is induced to generate beta waves, alpha waves, theta waves, delta waves, gamma waves, or other brain waves, allowing the user to enter the corresponding states mentioned above and achieve effects such as improved concentration, sleep, stress relief, and meditation.

[0019] In this embodiment, the frequency difference value may be automatically changed periodically over time. That is, the frequency difference value is not constant. Furthermore, the frequency difference value may be automatically changed according to a preset method without human intervention. Furthermore, the method of changing the frequency difference value may be preset and cannot be adjusted or selected by the user. Alternatively, there may be multiple change methods, and the user may select which change method to use. Furthermore, the physiological state of the user is not detected before determining the method of changing the frequency difference value. That is, the method of changing the frequency difference value does not change according to differences in the physiological state of the user.

[0020] For example, the frequency difference value automatically and stepwise changes cyclically between 8 Hz and 12 Hz, with each change being 0.1 Hz, and the same frequency difference value being maintained for 10 seconds after each change. The frequency difference value automatically and stepwise changes cyclically between 8 Hz and 12 Hz, for example, gradually changes from 8 Hz to 12 Hz, then gradually changes from 12 Hz to 8 Hz, or repeats gradually changes from 8 Hz to 12 Hz, or repeats gradually changes from 12 Hz to 8 Hz.

[0021] In this embodiment, the frequency difference value can be automatically cyclically changed between 0.5 Hz and 4 Hz to induce delta waves. The frequency difference value can be automatically cyclically changed between 4 Hz and 8 Hz to induce theta waves. The frequency difference value can be automatically cyclically changed between 8 Hz and 12 Hz to induce alpha waves. The frequency difference value can be automatically cyclically changed between 12 Hz and 20 Hz to induce beta waves. The frequency difference value can be automatically cyclically changed between 25 Hz and 40 Hz to induce gamma waves. Also, in this embodiment, if the period is not long enough, the frequency difference value may only gradually increase or decrease.

[0022] Each user's brain not only produces a more favorable induction effect for a single frequency difference value, but typically produces a more favorable induction effect for multiple frequency difference values. The sound control device of this embodiment automatically cycles through the user's frequency difference values, enabling a more favorable induction effect for multiple frequency difference values. While a subject may experience a more favorable induction effect for a single input frequency difference value, this effect may not last long. The sound control device of this embodiment automatically cycles through the user's frequency difference values, automatically cycling through within a selected range. Therefore, when the user's brain becomes fatigued, the sound control device can switch to another frequency difference value and produce a more favorable induction effect again. Finally, the sound control device of this embodiment can generate a more favorable brainwave induction effect for a longer period of time.

[0023] In this embodiment, the mixer 140 further includes adjusting the volume of the left-ear background audio B12 in the left-ear audio L10 and adjusting the volume of the right-ear background audio B14 in the right-ear audio R10 during mixing, thereby appropriately generating the brainwave induction effect.

[0024] In this embodiment, the external sound source receiver 120 is a wireless receiver and can receive the external audio E10 wirelessly using Bluetooth, WiFi, FM, or other wireless communication protocols. In other embodiments, the external sound source receiver 120 can be a wired receiver that receives the external audio E10 via a wire.

[0025] In this embodiment, the external audio E10 is binaural audio including left-ear external audio E12 and right-ear external audio E14. The mixer 140 is used to mix the left-ear external audio E12 and left-ear background audio B12 into left-ear audio L10, and the mixer 140 is used to mix the right-ear external audio E14 and right-ear background audio B14 into right-ear audio R10. When the external audio E10 is binaural audio, the left-ear external audio E12 and right-ear external audio E14 are not frequency-adjusted by the frequency adjuster 130, so the external audio E10 can be faithfully emitted from the left-ear speaker 52 and the right-ear speaker 54 and presented to the user, allowing the user to enjoy appropriate stereo listening quality.

[0026] In this embodiment, the background sound source 110 generates the background audio B10 using an algorithm. Therefore, the background sound source 110 does not require much storage space to store the background audio B10. The background audio B10 may be rain audio or other suitable background audio. In this embodiment, the background audio B10 may be pre-recorded and stored in the background sound source 110 to have a more natural listening quality. The left-ear speaker 110 and the right-ear speaker 120 in this embodiment may be an electrodynamic speaker, a balanced armature speaker, a bone conduction speaker, or other types of speakers.

[0027] In summary, in the sound adjustment device of the present invention, the frequency adjuster allows the background sound waves received by the user's two ears to have a frequency difference value, so that the user can not only hear the sound waves but also produce corresponding effects such as improved concentration, sleep, stress relief, meditation, etc. Furthermore, the user can also listen to external audio whose frequency is not adjusted, thereby maintaining a desirable listening quality. [Industrial Applicability]

[0028] The present invention can be applied to earphones. [Explanation of symbols]

[0029] 52: Left ear speaker 54: Right ear speaker 100: Sound adjustment device 110: Background sound source 120: External sound source receiver 130: Frequency regulator 140: Mixer 150: Output port B10: Background Audio B12: Left ear background audio B14: Right ear background audio E10: External audio E12: Left ear external audio E14: Right ear external audio L10: Left ear audio R10: Right ear audio

Claims

1. a background sound source used to provide background audio, the background audio being mono audio; an external audio receiver used to receive external audio from the outside; a frequency adjuster used to receive the background audio and adjust it into left-ear background audio and right-ear background audio, wherein a first frequency of the left-ear background audio and a second frequency of the right-ear background audio have a frequency difference value; a mixer used to mix the external audio and the left-ear background audio into left-ear audio, and a mixer used to mix the external audio and the right-ear background audio into right-ear audio; an output port used to output the left-ear audio to a left-ear speaker and the right-ear audio to a right-ear speaker; An acoustic adjustment device comprising:

2. the mixer further includes, during mixing, adjusting a volume of the left-ear background audio in the left-ear audio and adjusting a volume of the right-ear background audio in the right-ear audio. The sound control device according to claim 1 .

3. the external sound source receiver is a wireless receiver; The sound control device according to claim 1 .

4. the external audio is binaural audio including left-ear external audio and right-ear external audio, the mixer is used to mix the left-ear external audio and the left-ear background audio into the left-ear audio, and the mixer is used to mix the right-ear external audio and the right-ear background audio into the right-ear audio; The sound control device according to claim 1 .

5. the background audio source uses an algorithm to generate the background audio; The sound control device according to claim 1 .

6. the background audio is rain audio; The sound control device according to claim 5.

7. the background audio is pre-recorded and stored in the background audio source; The sound control device according to claim 1 .

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