CN217825336U

CN217825336U - Portable high-resolution audio decoder

Info

Publication number: CN217825336U
Application number: CN202221192373.XU
Authority: CN
Inventors: 赵英杰; 刘仁奇; 江寿文
Original assignee: Shenghong Electronic Technology Dongguan Co ltd
Current assignee: Shenghong Electronic Technology Dongguan Co ltd
Priority date: 2022-05-18
Filing date: 2022-05-18
Publication date: 2022-11-15
Anticipated expiration: 2032-05-18

Abstract

The application provides a portable high-resolution audio decoder, including the decoder body, the one end of decoder body is provided with the audio input port, the other end of decoder body is provided with the audio output mouth, this internal PCB board that is provided with of decoder, including audio input module, host system, independent decoding module, audio output module, sound collection module, AD conversion module and sound intensity calculation module on the PCB board, audio input module is connected with host system, sound collection module passes through AD conversion module and is connected with host system, sound intensity calculation module is connected with host system, host system passes through independent decoding module and is connected with audio output module. The volume of the mobile phone output can be automatically adjusted according to the surrounding environment, and an independent decoding module is further arranged to improve the music effect.

Description

Portable high-resolution audio decoder

Technical Field

The present application relates to the field of audio decoders, and more particularly, to a portable high-resolution audio decoder.

Background

At present, more and more streaming media playing platforms release Hi-Fi-level lossless contents, the traffic cost is cheaper and cheaper along with the increasing capacity of the mobile phone, and more music enthusiasts and audio enthusiasts try to listen to high-definition music by using the mobile phone. However, because the volume of the mobile phone is limited, the 3.5mm analog output interface almost disappears, and the user can only enjoy the mobile phone through the adapter of the original mobile phone factory, and the effect is not necessarily ideal. Therefore, a portable audio decoder is produced, which converts the read digital audio information into an analog audio signal for output through the audio decoder, and then amplifies and reproduces the analog audio signal with power, thereby allowing people to listen to high-definition music.

However, after one end of an audio decoder is connected with a mobile phone, when an earphone is inserted into the audio decoder, the mobile phone keeps the previously set overhigh volume, and the overhigh volume can make people feel very harsh and uncomfortable, so that the volume of the mobile phone needs to be adjusted rapidly.

SUMMERY OF THE UTILITY MODEL

It is an object of the present application to provide a portable high-resolution audio decoder that can automatically adjust the volume.

In order to achieve the above purpose, the present application provides the following technical solutions:

the utility model provides a portable high-resolution audio decoder, includes the decoder body, the one end of decoder body is provided with the audio input port, the other end of decoder body is provided with the audio output mouth, this internal PCB board that is provided with of decoder, including audio input module, host system, independent decoding module, audio output module, sound collection module, AD conversion module and sound intensity calculation module on the PCB board, audio input module is connected with host system, sound collection module passes through AD conversion module and is connected with host system, sound intensity calculation module is connected with host system, host system is connected with audio output module through independent decoding module.

In a possible implementation manner, the model of the main control module is: ALC4042.

In one possible implementation, the independent decoding module employs a 4493EO decoding chip.

In one possible implementation, the decoder body is wrapped with a layer of tempered glass.

In a possible implementation manner, the upper surface and the lower surface of the decoder body are respectively provided with a concave cambered surface.

The beneficial effect of this application does:

when an audio input port of a decoder body of the mobile phone audio system is connected with a mobile phone end, a sound collection module starts to collect environmental sound data around the mobile phone, an A/D conversion module converts the collected sound data from an analog form to a digital form, a main control module compares whether the sound of the mobile phone is too large relative to the surrounding environment through a sound intensity calculation module, if the sound is too large, the main control module reduces the volume of the mobile phone, and if the sound is too small, the main control module improves the volume of the mobile phone; the original resolving power of the earphone cannot be well displayed even the high-impedance earphone is not pushed, and the finally heard music effect is greatly reduced. The application is provided with an independent decoding module to make up the short board, so that the music effect can be greatly improved.

Drawings

Fig. 1 is a schematic circuit diagram of a portable high-resolution audio decoder according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a portable high-resolution audio decoder according to an embodiment of the present application;

FIG. 3 is a schematic diagram of another view of a portable high-resolution audio decoder according to an embodiment of the present application;

fig. 4 is a schematic diagram of a portable high-resolution audio decoder according to an embodiment of the present application after being connected to a mobile phone and a headset;

FIG. 5 is a schematic diagram of a portable high-resolution audio decoder with a winding slot according to an embodiment of the present application;

FIG. 6 is a circuit diagram of an audio input module of a portable high-resolution audio decoder according to an embodiment of the present application;

fig. 7 is a circuit diagram of a main control module of a portable high-resolution audio decoder according to an embodiment of the present application;

fig. 8 is a circuit diagram of an audio output module of a portable high-resolution audio decoder according to an embodiment of the present application;

description of reference numerals:

1. a decoder body; 2. an audio input port; 3. an audio output port; 4. an audio input module; 5. a main control module; 6. an independent decoding module; 7. an audio output module; 8. a sound collection module; 9. an A/D conversion module; 10. a sound intensity calculation module; 11. an inner concave cambered surface; 12. winding a wire groove;

Detailed Description

The terminology used in the description of the embodiments section of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application, which will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1 to 4, a portable high-resolution audio decoder, including decoder body 1, one end of decoder body 1 is provided with audio input port 2, the other end of decoder body 1 is provided with audio output port 3, be provided with the PCB board in decoder body 1, include audio input module 4 on the PCB board, host system 5, independent decoding module 6, audio output module 7, sound collection module 8, a/D conversion module 9 and sound intensity calculation module 10, audio input module 4 is connected with host system 5, sound collection module 8 is connected with host system 5 through a/D conversion module 9, sound intensity calculation module 10 is connected with host system 5, host system 5 is connected with audio output module 7 through independent decoding module 6.

When the audio input port 2 of the decoder body 1 is connected with a mobile phone end, the sound collection module 8 starts to collect environmental sound data around the mobile phone, the A/D conversion module 9 converts the collected sound data from an analog form to a digital form, the main control module 5 compares whether the sound of the mobile phone is too large relative to the surrounding environment through the sound intensity calculation module 10, if the sound is too large, the main control module 5 can reduce the volume of the mobile phone, and if the sound is too small, the main control module 5 can improve the volume of the mobile phone; the original resolving power of the earphone cannot be well displayed even if the high-impedance earphone is not pushed, and the finally heard music effect is greatly reduced. The application is provided with an independent decoding module 6 to make up the short board, so that the music effect can be greatly improved.

As shown in fig. 7, in an embodiment, the types of the main control module 5 are: ALC4042.

In one embodiment, standalone decoding module 6 employs a decoding chip model 4493 EO. The AKM4493EQ decoding chip is mounted, the decoding performance is more excellent, the highest supported sampling rate can reach 768kHz/32bit, the native DSD output is further supported, and the highest supported sampling rate can reach DSD512.

In one embodiment, the a/D conversion module 9 uses an AKM4493EQ decoding chip, supports high sampling signals, and has the characteristics of high signal-to-noise ratio and low distortion; professional operational amplifier and crystal oscillator, low distortion and noise, and increase preceding stage drive in order to make things convenient for the tuning.

In one embodiment, the decoder body 1 is wrapped with a layer of tempered glass. 2.5D toughened glass is adopted, so that electromagnetic interference can be effectively resisted.

In one embodiment, the upper surface and the lower surface of the decoder body 1 are respectively provided with an inward concave cambered surface 11, so that the holding feeling is comfortable, and a toughened glass layer can be prevented from being scratched on a desktop.

As shown in fig. 5, in an embodiment, two side edges of the decoder body 1 are provided with winding slots 12, and the winding slots 12 are provided to facilitate people to wind the earphone cable thereon after using the earphone, thereby facilitating people to arrange the earphone cable.

In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, an indirect connection through an intermediate medium, a connection between two elements, or an interaction between two elements. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

Reference throughout this specification to apparatus or components, in embodiments or applications, means or components must be constructed and operated in a particular orientation and therefore should not be construed as limiting the present embodiments. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically stated otherwise.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the embodiments of the application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "may include" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the embodiments of the present application, and are not limited thereto. Although embodiments of the present application have been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: it is also possible to modify the solutions described in the previous embodiments or to substitute some or all of them with equivalents. And these modifications or substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A portable high-resolution audio decoder, comprising: the intelligent voice decoder comprises a decoder body, wherein an audio input port is formed in one end of the decoder body, an audio output port is formed in the other end of the decoder body, a PCB is arranged in the decoder body, the PCB comprises an audio input module, a main control module, an independent decoding module, an audio output module, a voice acquisition module, an A/D conversion module and a voice intensity calculation module, the audio input module is connected with the main control module, the voice acquisition module is connected with the main control module through the A/D conversion module, the voice intensity calculation module is connected with the main control module, and the main control module is connected with the audio output module through the independent decoding module.

2. The portable high-resolution audio decoder according to claim 1, wherein: the types of the main control module are as follows: ALC4042.

3. A portable high-resolution audio decoder according to claim 1, wherein: the independent decoding module adopts a 4493EO decoding chip.

4. The portable high-resolution audio decoder according to claim 1, wherein: the decoder body wraps up a toughened glass layer.

5. A portable high-resolution audio decoder according to claim 1, wherein: the upper surface and the lower surface of the decoder body are respectively provided with an inwards concave cambered surface.