CN109450832A - A kind of Bluetooth terminal balanced device EQ regulating system of software APP - Google Patents
A kind of Bluetooth terminal balanced device EQ regulating system of software APP Download PDFInfo
- Publication number
- CN109450832A CN109450832A CN201811352696.9A CN201811352696A CN109450832A CN 109450832 A CN109450832 A CN 109450832A CN 201811352696 A CN201811352696 A CN 201811352696A CN 109450832 A CN109450832 A CN 109450832A
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- software app
- balanced device
- bluetooth terminal
- bluetooth
- mode
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
- H04L67/125—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks involving control of end-device applications over a network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03878—Line equalisers; line build-out devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
Abstract
The present invention relates to audio debugging and development of Mobile Internet technology, and in particular to the Bluetooth terminal balanced device EQ regulating system of software APP a kind of, work step are as follows: the bluetooth module of software APP and Bluetooth terminal in a, smart machine establish data channel connection；B, software APP obtains the balanced device EQ parameter of current Bluetooth terminal, and software APP updates UI；C, software APP setting balanced device EQ mode is sent to Bluetooth terminal；D, Bluetooth terminal receives the balanced device EQ mode that balanced device EQ mode is changed to software APP setting；E, software APP shares balanced device EQ mode on community platform by network module.The utility model has the advantages that abundant people's entertainment, more intelligentized adjusting EQ parameter improve user experience.
Description
Technical field
The present invention relates to audio debugging and development of Mobile Internet technology, especially a kind of more intelligentized adjusting EQ parameters
Software APP Bluetooth terminal balanced device EQ regulating system.
Background technique
It is enjoyed with the development of society, higher and higher quality of life promotes people to pursue better music, in addition to sound
Other than pleasure itself, present various functions, the bluetooth equipment of various mass effects be not old poor out.In order to improve hearing effect, at present
Bluetooth terminal manufacturer, equipment factory when, the EQ parameter for being directed to each frequency range is adjusted, to generate different gains
Effect, so that user can hear better tamber effect by Bluetooth terminal.
EQ(balanced device) adjust be different frequency component in audio signal is enhanced or is weakened etc. adjustings processing, so as to
Liked according to the sense of hearing of user to change the tone color of audio signal, to realize a kind of mode of more preferably sound effect.
It is solved however, the prior art also faces some problems demands: Bluetooth terminal EQ parameter setting one on the market at present
As be all it is pre-set, solidification in the terminal.It will lead to subjective sensation low frequency when user listens to music in each scene in this way to lack
It loses or insufficient, song loses timing and passion.The end PC software adjustment frequency is first passed through headed by traditional EQ parameter testing mode
Curve downloads to after generating parameter and carries out audition in realistic objective loudspeaker box device, if audio is dissatisfied, again to adjusting
Frequency curve generates parameter and downloads to target loudspeaker box device, again by adjusting and audition repeatedly, parametric equalizer tune
Save satisfied effect.It is very low that such way can not achieve adjusting and the real-time audition in model machine, tuning efficiency in real time.
Therefore, during using speaker, how more intelligentized adjustment EQ has very for promoting user experience
Important meaning.It is necessary to provide a kind of Bluetooth terminal EQ adjusting method and system based on APP, to improve existing Bluetooth terminal
EQ adjusts the defect of low efficiency, enriches people's entertainment.After audio is debugged out, the fruit of labour can be shone to society with moment
Area's platform receives others thumb up, it can also be seen that EQ effect is the EQ parameter that other people share, regarded as, equally may be used
Experience is updated with downloading.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of more intelligentized software APP's for adjusting EQ parameter
Bluetooth terminal balanced device EQ regulating system.
Present invention provide the technical scheme that the Bluetooth terminal balanced device EQ regulating system of software APP a kind of, including intelligence
Equipment, Bluetooth terminal and community platform；
Software APP is set in the smart machine；Bluetooth module one and network transmission module one are equipped in the software APP；
There is balanced device EQ parameter on the Bluetooth terminal；The Bluetooth terminal is equipped with bluetooth module two；
The community platform is equipped with network transmission module two；
The bluetooth module one is established data channel with bluetooth module two and is connected；
The network transmission module one is established with network transmission module two to be connected to the network；
The smart machine is mobile phone and plate intelligent communication device.
The Bluetooth terminal is the playback equipment that bluetooth headset and Baffle Box of Bluetooth are provided with bluetooth module.
Unique identifier UUID is arranged in the software APP, passes through bluetooth module and corresponding bluetooth according to identification code UUID
Terminal establishes data channel connection.
Balanced device EQ mode is arranged in the software APP, and the balanced device EQ mode command of the setting is sent out by bluetooth module
Give Bluetooth terminal；Change the balanced device EQ parameter of Bluetooth terminal.
The software APP and Bluetooth terminal establish the balanced device EQ parameter of acquisition Bluetooth terminal after connection；The software APP
UI is updated after obtaining balanced device EQ parameter；
The network connection that the software APP is established by network transmission module one and network transmission module two, balanced device EQ mould
Formula is shared on community platform.
The work step of the Bluetooth terminal balanced device EQ regulating system of a kind of software APP are as follows: in a, smart machine
The bluetooth module of software APP and Bluetooth terminal establishes data channel connection；B, software APP obtains the equilibrium of current Bluetooth terminal
Device EQ parameter, software APP update UI；C, software APP setting balanced device EQ mode is sent to Bluetooth terminal；D, Bluetooth terminal receives
Balanced device EQ mode is changed to the balanced device EQ mode of software APP setting；E, software APP is by network module balanced device EQ mould
Formula is shared on community platform.
The balanced device EQ mode includes pop mode, dance music mode, rock and roll mode, classic mode, human voice patterns, bass
Mode, soft mode and self-defined pattern；
The software APP is configured under the mode of selection self-defined pattern.
After above-mentioned technical proposal, the beneficial effects of the present invention are:
Relative to disclosed technical solution, the Bluetooth terminal balanced device EQ regulating system of software APP a kind of is provided, is solved existing
Bluetooth terminal EQ in the related technology adjusts the defect of low efficiency, enriches people's entertainment, more intelligentized adjusting EQ ginseng
Number, improves user experience.
Detailed description of the invention
Fig. 1 is the Bluetooth terminal balanced device EQ regulating system block diagram of software APP a kind of；
Fig. 2 is the Bluetooth terminal balanced device EQ regulating system step schematic diagram of software APP a kind of；
Specific embodiment
The present invention will be described in detail for 1 and Fig. 2 and specific embodiment with reference to the accompanying drawing, but not as to this hair
Bright restriction.
Embodiment
As shown in Figure 1 and Figure 2, the Bluetooth terminal balanced device EQ regulating system of a kind of software APP is the embodiment of the present invention
A kind of Bluetooth terminal EQ adjusting method and system based on APP of offer, mainly comprises the steps that
1, the data channel of establishing of smart machine software APP and Bluetooth terminal connects；
In embodiments of the present invention, the blue-tooth intelligence terminal can be blue-tooth intelligence earphone, blue-tooth intelligence speaker etc., open soft
Part APP, initiation parameter open bluetooth by software APP, Bluetooth terminal are searched for, according to the preset automatic mistake of UUID and title
Filter UUID and bluetooth title is simultaneously established BLE or SPP data channel and connect, in order to guarantee stability that data are transmitted, Android system
System is connected using SPP, and IOS system is using BLE connection, it can be achieved that the data interaction of software APP and Bluetooth terminal.
2, software APP obtains current Bluetooth terminal EQ parameter, and software APP updates UI；
In embodiments of the present invention, for the EQ data for keeping Bluetooth terminal original, after Bluetooth terminal in software APP connection,
It can read the EQ data of present terminal and update UI, so that client understands the EQ parameter of present terminal.
APP, which is issued, obtains EQ information format unit:
| Protocol header | Field type | Data length | Type data field | CRC16 verification |
| 0x11 | 0x07 | 1 byte | 0x01 | 2byte |
Bluetooth terminal replys APP and obtains EQ information format unit:
| Protocol header | Field type | Data length | Type data field | CRC16 verification |
| 0x11 | 0x87 | 1 byte | 11byte | 2byte |
11 byte representation of Type data field :+10 sections of EQ mode each adjusting DB numbers
When inquiring EQ information, 10 sections of yield values under current EQ mode and customized EQ can be reported to APP.EQ mode: totally 8
It is a
0x01: pop mode；0x02: dance music mode；0x03: rock and roll mode；0x04: classic mode；0x05: human voice patterns；
0x06: bass patterns；0x07: soft mode；0x80: self-defined pattern, only under self-defined pattern, subsequent DB data are
Effectively.
3, fixed mode Bluetooth terminal EQ is arranged in software APP；
In embodiments of the present invention, for the mode of some fixations, Bluetooth terminal EQ parameter setting is all pre-set, solidification
In the terminal.Software APP only needs the number for issuing mode by agreement to Bluetooth terminal, and Bluetooth terminal can come into force.
Software APP issues setting EQ format member:
| Protocol header | Field type | Data length | Type data field | CRC16 verification |
| 0x11 | 0x06 | 1byte | 1byte | 2byte |
Type data field: EQ mode, totally 8
0x01: pop mode；0x02: dance music mode；0x03: rock and roll mode；0x04: classic mode；0x05: human voice patterns；
0x06: bass patterns；0x07: soft mode
4, customized Bluetooth terminal EQ parameter is arranged in software APP；
In embodiments of the present invention, since the CPU of the smart machine CPU for calculating power considerably beyond Bluetooth terminal calculates power, so soft
The end part APP is first converted to frequency range coefficient according to each band gain that user is adjusted, and is then handed down to Bluetooth terminal again.There is provided 10
The customized EQ of the positive and negative 15db frequency range of section is adjusted.
Software APP calculates the audio coefficients of each frequency range according to second order IIR filtering algorithm:
Input parameter:
Fs: sample frequency, project are defaulted as 44000HZ
Gain: gain values
Fc: frequency range dot center frequency
Q: ratio value is fixed as 0.707
Output parameter:
5 coefficients of audio of corresponding frequency range
private byte[] PeakingEQ(float fs, float gain, float fc, float q) {
double b0, b1, b2, a0, a1, a2;
double A = Math.pow(10, gain / 40);
double omega = 2 * PI * fc / fs;
double sn = Math.sin(omega);
double cs = Math.cos(omega);
double alpha = Math.sin(omega) / (2 * Q);
double beta = Math.sqrt(A + A);
b0 = 1 + (alpha * A);
b1 = -2 * cs;
b2 = 1 - (alpha * A);
a0 = 1 + (alpha / A);
a1 = -2 * cs;
a2 = 1 - (alpha / A);
a0 = 1 / a0;
b0 = (int) (b0 * a0 * (1 << 20));
b1 = (int) (b1 * a0 * (1 << 20));
b2 = (int) (b2 * a0 * (1 << 20));
a1 = (int) (-a1 * a0 * (1 << 20));
a2 = (int) (-a2 * a0 * (1 << 20));
int[] coef = new int[]{(int) a1, (int) a2, (int) b0, (int) b1, (int)
b2};
byte[] bytes = getBytes(coef);
return bytes;
}
Software APP issues setting EQ format member:
| Protocol header | Field type | Data length | Type data field | CRC16 verification |
| 0x11 | 0x06 | 1 byte | 23byte | 2byte |
Type data field: EQ mode+EQ which number of segment+adjusting DB number+A0+A1+B0+B1+B2
Wherein:
EQ mode is 0x80, i.e. 10 sections of EQ are adjusted in self-defined pattern, user
Which number of segment of EQ: 1-10 instruction is that section in 10 sections
Adjust DB number: 0-30 indicates the yield value of that section in 10 sections, which leaves without the practical meaning to be for convenience
APP inquires every section under customized EQ of DB yield value.The point centered on 15 is more to reduce downwards upwards for how many gain increased
Reduce benefit, and entire range of debugging is positive and negative 15db.
A0+A1+B0+B1+B2: 4 byte coefficients of each frequency range, totally 20 bytes
5, user's real-time experience EQ regulating effect；
In embodiments of the present invention, Bluetooth terminal adjusts and will pass through to audio addition EQ according to the EQ regulating command received
Audio after EQ is adjusted carries out rendering output, has reached the sound effect of enhancing media.It realizes and adjusts EQ parameter in real time and pass through
Bluetooth terminal audition can achieve beautification, uglify and modify sound, make sound or the distincter protrusion of music style, abundant more
Coloured silk reaches required artistic effect.
6, software APP shares EQ parameter in community platform；
In embodiments of the present invention, user can debug EQ parameter on demand, and after audio is debugged out, user can be with moment labor
Dynamic achievement is shone to community platform, is shared the fruit of labour self, is received others thumb up, can also look at what others has done
EQ effect can also download more new experience.
As known by the technical knowledge, the technical program can pass through other essence without departing from its spirit or the reality of essential feature
Scheme is applied to realize.Therefore, embodiment disclosed above, in all respects are merely illustrative, and are not only
's.All changes within the scope of the invention or within the scope equivalent to the present invention are included in the invention.
Claims (8)
1. the Bluetooth terminal balanced device EQ regulating system of software APP a kind of, including smart machine, Bluetooth terminal and community platform；
It is characterized by:
Software APP is set in the smart machine；Bluetooth module one and network transmission module one are equipped in the software APP；
There is balanced device EQ parameter on the Bluetooth terminal；The Bluetooth terminal is equipped with bluetooth module two；
The community platform is equipped with network transmission module two；
The bluetooth module one is established data channel with bluetooth module two and is connected；
The network transmission module one is established with network transmission module two to be connected to the network；
Balanced device EQ mode is arranged in the software APP, and the balanced device EQ mode command of the setting is sent to by bluetooth module
Bluetooth terminal；Change the balanced device EQ parameter of Bluetooth terminal；
The network connection that the software APP is established by network transmission module one and network transmission module two, balanced device EQ mould
Formula is shared on community platform；
A kind of work step of the Bluetooth terminal balanced device EQ regulating system of software APP are as follows: the software in a, smart machine
The bluetooth module of APP and Bluetooth terminal establishes data channel connection；B, software APP obtains the balanced device EQ of current Bluetooth terminal
Parameter, software APP update UI；C, software APP setting balanced device EQ mode is sent to Bluetooth terminal；D, Bluetooth terminal receives balanced
Device EQ mode is changed to the balanced device EQ mode of software APP setting；E, software APP is by network module balanced device EQ mode point
It enjoys on community platform.
2. the Bluetooth terminal balanced device EQ regulating system of software APP according to claim 1, it is characterised in that: described
Smart machine is mobile phone and plate intelligent communication device.
3. the Bluetooth terminal balanced device EQ regulating system of software APP according to claim 1, it is characterised in that: described
Bluetooth terminal is the playback equipment that bluetooth headset and Baffle Box of Bluetooth are provided with bluetooth module.
4. the Bluetooth terminal balanced device EQ regulating system of software APP according to claim 1, it is characterised in that: described
Unique identifier UUID is arranged in software APP, establishes data with corresponding Bluetooth terminal by bluetooth module according to identification code UUID
Channel connection.
5. the Bluetooth terminal balanced device EQ regulating system of software APP according to claim 1, it is characterised in that: described
Software APP and Bluetooth terminal establish the balanced device EQ parameter of acquisition Bluetooth terminal after connection；The software APP is obtaining balanced device
UI is updated after EQ parameter.
6. the Bluetooth terminal balanced device EQ regulating system of software APP according to claim 1, it is characterised in that: described
The work step of a kind of Bluetooth terminal balanced device EQ adjusting method based on software APP and system are as follows: soft in a, smart machine
The bluetooth module of part APP and Bluetooth terminal establishes data channel connection；B, software APP obtains the balanced device of current Bluetooth terminal
EQ parameter, software APP update UI；C, software APP setting balanced device EQ mode is sent to Bluetooth terminal；D, Bluetooth terminal receives equal
Weighing apparatus EQ mode is changed to the balanced device EQ mode of software APP setting；E, software APP is by network module balanced device EQ mode
Share on community platform.
7. the Bluetooth terminal balanced device EQ regulating system of software APP according to claim 1, it is characterised in that: described
Balanced device EQ mode includes pop mode, dance music mode, rock and roll mode, classic mode, human voice patterns, bass patterns, soft mould
Formula and self-defined pattern.
8. the Bluetooth terminal balanced device EQ regulating system of software APP according to claim 7, it is characterised in that: described
Software APP is configured under the mode of selection self-defined pattern.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111541982A (en) * | 2020-04-28 | 2020-08-14 | 歌尔科技有限公司 | Sound effect regulation control method, processing terminal and earphone |
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