Sound adjusting device

Abstract

The invention provides a sound adjusting device which comprises a background sound source, an external sound source receiver, a frequency adjuster, a sound mixer and an output port. The background sound source is used for providing a background audio. The background audio is monaural audio. The external sound source receiver is used for receiving an external audio frequency from the outside. The frequency adjuster is used for receiving the background audio and adjusting the background audio into a left ear background audio and a 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. The audio mixer is used for mixing the external audio and the left-ear background audio into a left-ear audio and mixing the external audio and the right-ear background audio into a right-ear audio. The output port is used for outputting the left-ear audio frequency to a left-ear horn and outputting the right-ear audio frequency to a right-ear horn.

Description

Technical Field

[0001] The invention relates to a sound adjustment device. Background Art

[0002] With the rapid advancement of technology and the booming development of audio and video content, people are increasingly using headphones to listen to music or enjoy audio and video content while avoiding disturbing others around them. However, how to enhance the user experience of headphones is an area that headphone manufacturers are constantly striving to improve. Summary of the Invention

[0003] The present invention is directed to a sound adjustment device that enables a user to experience binaural beats.

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

[0005] In the sound adjustment device according to an embodiment of the present invention, the mixer further adjusts the volume of the left ear background audio in the left ear audio and the volume of the right ear background audio in the right ear audio during mixing.

[0006] In the sound adjustment device according to the embodiment of the present invention, the external sound source receiver is a wireless receiver.

[0007] In a sound adjustment device according to an embodiment of the present invention, the external audio is a two-channel audio system, including a left-ear external audio system and a right-ear external audio system. The mixer is configured to mix the left-ear external audio system with the left-ear background audio system to form the left-ear audio system, and the mixer is configured to mix the right-ear external audio system with the right-ear background audio system to form the right-ear audio system.

[0008] In the sound adjustment device according to the embodiment of the present invention, the background sound source generates background audio using an algorithm.

[0009] In the sound adjustment device according to the embodiment of the present invention, the background audio is rain audio.

[0010] In the sound adjustment device according to the embodiment of the present invention, the background audio is pre-recorded and stored in the background sound source.

[0011] Based on the above, in the sound adjustment device of the present invention, the sound waves received by the two ears have a frequency difference, which can allow the user to produce corresponding effects in addition to hearing the sound waves. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 FIG. 4 is a circuit block diagram of a sound adjustment device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0013] Reference will now be made in detail to exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Whenever possible, the same reference numerals are used in the drawings and the description to refer to the same or like parts.

[0014] Figure 1 This is a circuit block diagram of a sound adjustment device according to an embodiment of the present invention. Figure 1 The sound 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 a background audio B10. The background audio B10 is a mono audio. The frequency adjuster 130 is used to receive the background audio B10 and adjust it into a left-ear background audio B12 and a 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.

[0015] Because background audio B10 is monophonic, the portion destined for the left ear speaker 52 and the portion destined for the right ear speaker 54 are identical. Even if frequency adjuster 130 adjusts the frequency of background audio B10 to separate it into left-ear background audio B12 and right-ear background audio B14, this will not significantly impact the sound heard by the user. Furthermore, background audio B10 is not a primary concern for the user, minimizing its impact on the user's listening experience.

[0016] The external audio source receiver 120 is used to receive external audio E10. The mixer 140 is used to mix the external audio E10 with the left-ear background audio B12 to form the left-ear audio L10, and to mix the external audio E10 with the right-ear background audio B14 to form the right-ear audio R10. In other words, the external audio E10 does not undergo frequency adjustment by the frequency adjuster 130; only the background audio B10 undergoes frequency adjustment by the frequency adjuster 130. Therefore, the external audio E10 can be faithfully sounded and presented to the user by the left-ear speaker 52 and the right-ear speaker 54 without pitch distortion.

[0017] After mixing, the mixer 140 outputs the left ear audio L10 to the left ear speaker 52 and the right ear audio R10 to the right ear speaker 54 through the output port 150 .

[0018] Brainwaves are the electrical oscillations produced by the activity of nerve cells in the human brain, or the rhythm of brain cell activity. The human brain produces brainwaves at all times. Classified by frequency, brainwaves include at least beta, alpha, theta, delta, and gamma waves. Generally speaking, during stage three of non-rapid eye movement sleep, delta waves (a frequency between 0.5 Hz and 4 Hz) are typical brainwaves. During deep sleep, dreaming, deep meditation, or states of intense subjective activity, theta waves (a frequency between 4 Hz and 8 Hz) are typical brainwaves. During moments of mental turmoil before sleep, when consciousness is gradually blurring, when a flash of inspiration occurs, or when the mind is relaxed and focused, alpha waves are typical brainwaves. During moments of relaxation but concentration, such as when processing previously received information, beta waves are typical brainwaves. However, research has also shown that the stimulation of different brainwaves can in turn affect a person's state of mind. For example, when the human brain is induced to produce alpha waves, the person will be brought into a state of sudden inspiration, physical and mental relaxation, and focused attention.

[0019] By adjusting the frequency of the background audio B10 through the frequency adjuster 130, the frequency difference 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 can be induced to produce beta waves, alpha waves, theta waves, delta waves, gamma waves or other brain waves, and the user can enter the corresponding state mentioned above to achieve the effects of improving concentration, sleeping, relieving stress, entering meditation, etc.

[0020] In this embodiment, the frequency difference can automatically cycle over time. That is, the frequency difference is not fixed. Furthermore, the frequency difference automatically changes according to a default method without requiring human intervention. Furthermore, the method of changing the frequency difference is pre-set and cannot be adjusted or selected by the user. Alternatively, there may be multiple methods of changing, and the user can select which method to use. Furthermore, the user's physiological state is not tested before determining the method of changing the frequency difference. In other words, the method of changing the frequency difference does not change according to differences in the user's physiological state.

[0021] For example, the frequency difference may automatically and stepwise cycle between 8 Hz and 12 Hz, with the frequency difference changing by 0.1 Hz at a time and maintaining the same frequency difference for 10 seconds after each change. Automatically and stepwise cycling between 8 Hz and 12 Hz may include, for example, gradually changing from 8 Hz to 12 Hz, then gradually changing from 12 Hz to 8 Hz, or repeatedly changing from 8 Hz to 12 Hz, or repeatedly changing from 12 Hz to 8 Hz.

[0022] In this embodiment, the frequency difference can automatically cycle between 0.5 Hz and 4 Hz to induce delta waves, the frequency difference can automatically cycle between 4 Hz and 8 Hz to induce theta waves, the frequency difference can automatically cycle between 8 Hz and 12 Hz to induce alpha waves, the frequency difference can automatically cycle between 12 Hz and 20 Hz to induce beta waves, and the frequency difference can automatically cycle between 25 Hz and 40 Hz to induce gamma waves. Furthermore, in this embodiment, if the time period is not long enough, the frequency difference can simply increase or decrease gradually.

[0023] Each user's brain can produce a better induction effect not only for a single frequency difference, but usually for multiple frequency differences. Since the sound adjustment device of this embodiment induces the user with a frequency difference that changes in an automatic cycle, it can produce a better induction effect at multiple frequency differences. Although the subject has a better induction effect for the input single frequency difference, it may not last long. Since the sound adjustment device of this embodiment induces the user with a frequency difference that changes in an automatic cycle, and can automatically change in an automatic cycle within a selected range, it can change to another frequency difference after the user's brain is tired to produce a better induction effect again. Ultimately, the sound adjustment device of this embodiment can produce a better brain wave induction effect for a longer period of time.

[0024] In this embodiment, the mixer 140 also adjusts the volume of the left ear background audio B12 in the left ear audio L10 and the right ear background audio B14 in the right ear audio R10 during mixing, thereby achieving an appropriate brainwave induction effect.

[0025] In this embodiment, the external audio source receiver 120 is a wireless receiver that can use Bluetooth, WiFi, FM or other wireless communication protocols to wirelessly receive the external audio E10. In other embodiments, the external audio source receiver 120 can also be a wired receiver that receives the external audio E10 in a wired manner.

[0026] In this embodiment, external audio E10 is two-channel 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 with the left-ear background audio B12 to form the left-ear audio L10. The mixer 140 is also used to mix the right-ear external audio E14 with the right-ear background audio B14 to form the right-ear audio R10. When the external audio E10 is two-channel audio, because the left-ear external audio E12 and the right-ear external audio E14 are not frequency-adjusted by the frequency adjuster 130, the external audio E10 can be faithfully sounded by the left-ear speaker 52 and the right-ear speaker 54 and presented to the user, allowing the user to enjoy stereophonic listening quality.

[0027] In this embodiment, background sound source 110 uses an algorithm to generate background audio B10. Therefore, background sound source 110 does not require a large amount of storage space to store background audio B10. Background audio B10 can be rain sounds or other suitable background audio. In this embodiment, background audio B10 can also be pre-recorded and stored in background sound source 110, providing a more natural listening quality. The left ear speaker 110 and right ear speaker 120 in this embodiment can be dynamic coil speakers, moving iron speakers, bone conduction speakers, or other types of speakers.

[0028] In summary, the frequency modulator in the sound adjustment device of the present invention creates a frequency difference between the background sound waves received by the user's two ears, allowing the user to experience corresponding effects beyond just hearing the sound waves, such as improved concentration, sleep, stress relief, and meditation. Furthermore, the user can still hear external audio without frequency adjustment, maintaining excellent listening quality.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sound adjustment device, characterized in that: include: A background audio source, for providing background audio, wherein the background audio is mono audio; An external audio source receiver, used for receiving external audio from the outside; a frequency adjuster for receiving the background audio and adjusting the background audio into a left-ear background audio and a 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; an audio mixer for mixing the external audio with the left ear background audio to form left ear audio, and for mixing the external audio with the right ear background audio to form right ear audio; as well as The output port is used to output the left ear audio to the left ear speaker, and to output the right ear audio to the right ear speaker.

2. The sound adjustment device according to claim 1, characterized in that: When mixing, the mixer further includes adjusting the volume of the left ear background audio in the left ear audio and adjusting the volume of the right ear background audio in the right ear audio.

3. The sound adjustment device according to claim 1, characterized in that: The external audio source receiver is a wireless receiver.

4. The sound adjustment device according to claim 1, wherein: The external audio is a two-channel 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.

5. The sound adjustment device according to claim 1, characterized in that: The background sound source generates the background audio using an algorithm.

6. The sound adjustment device according to claim 5, characterized in that: The background audio is rain sound audio.

7. The sound adjustment device according to claim 1, characterized in that: The background audio is pre-recorded and stored in the background sound source.

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