CN103152669A - Method for utilizing intelligent terminal to operate voice frequency effector - Google Patents
Method for utilizing intelligent terminal to operate voice frequency effector Download PDFInfo
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- CN103152669A CN103152669A CN2013100310408A CN201310031040A CN103152669A CN 103152669 A CN103152669 A CN 103152669A CN 2013100310408 A CN2013100310408 A CN 2013100310408A CN 201310031040 A CN201310031040 A CN 201310031040A CN 103152669 A CN103152669 A CN 103152669A
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Abstract
The invention provides a method for utilizing an intelligent terminal to operate a voice frequency effector. The method includes a first step of enabling the intelligent terminal to be connected with a musical instrument through an effector circuit, utilizing the effector circuit to collect sounds sent out from the musical instrument and upload the sounds to the intelligent terminal, enabling the intelligent terminal to carry out effect operation and output sound signals to the effector circuit after operation, and then broadcasting. The method is capable of achieving connection between the intelligent terminal and the effector circuit and realizing the professional effector through adoption of strong operational capacity of the intelligent terminal as a platform.
Description
Technical field
The present invention relates to the musical instrument field, refer to especially a kind of method that adopts intelligent terminal computing audio frequency effect device.
Background technology
Common guitar effect device uses simple analog circuit to make, and hardware is directly processed the simulation guitar signal of input, and effect is less, and controllability is not strong, such as existing monolithic distortion effect device.Senior guitar effect device uses the dsp chip of specialty, will simulate guitar signal digitalized, then carry out the effect computing, again digital signal is converted to analog signal after computing is complete, send audio amplifier to export, but this effect device cost is higher; And the operational capability of dsp chip is with respect to present portable terminal, and operational capability is not strong.
Summary of the invention
The present invention proposes a kind of method that adopts intelligent terminal computing audio frequency effect device, has solved the problem that in the prior art, general effect device effect is few, controllability is poor, and the not strong problem of dsp chip operational capability.
Technical scheme of the present invention is achieved in that
A kind of method that adopts intelligent terminal computing audio frequency effect device, the method is connected by an effect device circuit intelligent terminal with musical instrument, described effect device circuit gathers the sound that sends of described musical instrument, and it is uploaded to described intelligent terminal, described intelligent terminal carries out the effect computing, again audio signal is exported to described effect device circuit after computing is complete, and broadcast.
Preferably, the method comprises the steps:
Step 1: described effect device circuit is connected with musical instrument with described intelligent terminal;
Step 2: described effect device circuit receives the voice data that described musical instrument sends, and is converted into the digital signal formation that is complementary with described intelligent terminal, and is uploaded to described intelligent terminal;
Step 3: described intelligent terminal receives described digital signal formation, it is carried out the effect computing according to the parameter that the user arranges, and export the digital audio and video signals after computing to described effect device circuit;
Step 4: after the described digital audio and video signals that described effect device circuit will receive is converted to simulated audio signal, broadcast by power amplifying device.
Preferably, described step 3 also further comprises
Step 31: after exporting the digital audio and video signals after computing to described effect device circuit, described intelligent terminal detects and upgrades the user and arranges.
Preferably, described intelligent terminal is the intelligent terminal of Android operating system or the intelligent terminal of Apple Macintosh operating system.
Preferably, described intelligent terminal is the portable multi-function numerical digit multimedia player (IPOD) of apple, at this moment, further comprises between described step 1 and step 2
Step 11: the authentication module on described effect device circuit sends checking request and verification msg to the portable multi-function numerical digit multimedia player of the described apple that connects, after checking, begin audio data transmission between the portable multi-function numerical digit multimedia player of described apple and described effect device circuit.
Preferably, described effect device circuit carries out transfer of data by Usb2.0 interface and described intelligent terminal.
Preferably, described effect device circuit adopts the AT91SAM series monolithic as controller, adopts chip AK4556 as the receiver that receives the voice data that described musical instrument sends and described digital audio and video signals is converted to the transducer of simulated audio signal.
Preferably, in described step 4, described effect device circuit exports power amplifying device to by the simulated audio signal of series connection audio interface after with computing; Further, described power amplifying device comprises loud speaker and/or earphone.
Preferably, described sample frequency selection circuit is 44100Hz or 48000Hz frequency by the sample frequency of the described chip AK4556 of high-low level switching oscillating crystal selection of the PA23 pin of described AT91SAM Series Controller.
The present invention can be with the digitlization effect arithmetic unit of the portable sets such as IPHONE mobile phone or non-IPHONE mobile phone, panel computer as effect device, and realizing more professional music effect device, the powerful processors by intelligent terminal realizes multiple audio frequency effect.Such as being connected with the 30 pin interfaces of IPHONE, by IPHONE realize voice data sampling, transmission, with the audio stack of effect device after output, realize sampling, transmission, reduction take the powerful operational capability of IPHONE as the USB Audio audio signal of platform, can realize more professional effect device.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or description of the Prior Art, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the operational module connection diagram of intelligent terminal computing audio frequency effect device of the present invention;
Fig. 2 is the workflow schematic diagram of intelligent terminal computing audio frequency effect device preferred embodiment of the present invention;
Fig. 3 is the circuit connection diagram of effect device circuit preferred embodiment controller of the present invention;
Fig. 4 is the circuit connection diagram of effect device circuit preferred embodiment numeral output module of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
The method of employing intelligent terminal computing audio frequency effect device of the present invention, that an intelligent terminal is connected with musical instrument by an effect device circuit, described effect device circuit gathers the sound that sends of described musical instrument, and it is uploaded to described intelligent terminal, described intelligent terminal carries out the effect computing, again audio signal is exported to described effect device circuit after computing is complete, and broadcast.The method of this invention can realize sampling, transmission and audio stack and the restoring function take the smart mobile phone such as iPhone or other intelligent terminal as the musical instrument audio signal of platform, can utilize the powerful operational capability of intelligent terminal host, carry out digitized effect computing, to realize more professional musical instrument effect device.
The present invention specifically can comprise the steps:
Step 1: described effect device circuit is connected with musical instrument with described intelligent terminal;
Step 2: described effect device circuit receives the voice data that described musical instrument sends, and is converted into the digital signal formation that is complementary with described intelligent terminal, and is uploaded to described intelligent terminal;
Step 3: described intelligent terminal receives described digital signal formation, it is carried out the effect computing according to the parameter that the user arranges, and export the digital audio and video signals after computing to described effect device circuit;
Step 4: after the described digital audio and video signals that described effect device circuit will receive is converted to simulated audio signal, broadcast by power amplifying device.
As depicted in figs. 1 and 2, described step 3 also further comprises
Step 31: after exporting the digital audio and video signals after computing to described effect device circuit, described intelligent terminal detects and upgrades the user and arranges.
Described intelligent terminal can be the intelligent terminal of Android operating system or the intelligent terminal of Apple Macintosh operating system, be preferably the Portable intelligent terminal of Apple Macintosh operating system, therefore in illustrated embodiment, the explanation operation principle of the present invention take the IPHONE of Apple Macintosh operating system as example.
Described intelligent terminal also can be the portable multi-function numerical digit multimedia player of apple, i.e. IPOD or IPHONE are if IPOD or IPHONE equipment need increase by an authentication circuit module.After described effect device circuit working, a MFI (Made for iPod) circuit to the device identification circuit that connects, read certificate and send iPhone from the iPod2.0C chip, then iPhone sends authentication request to circuit, circuit cpu obtains authentication result after the authentication request data are sent to the computing of iPod2.0C trusted authentication chip, then send authentication result back to iPhone, whether correct for iPhone identification, and authentication success whether.After authentication success, iPhone just can use the Usb2.0audio interface of circuit, i.e. mutual acoustic audio data.If authentification failure, iPhone thinks that circuit is not a legal MFI (Made for iPod) equipment, and iPhone can not use the Usb2.0audio interface of circuit.
Therefore for IPOD or IPHONE equipment, also further comprise between described step 1 and step 2
Step 11: the authentication module on described effect device circuit sends checking request and verification msg to the portable multi-function numerical digit multimedia player of the described apple that connects, after checking, begin audio data transmission between the portable multi-function numerical digit multimedia player of described apple and described effect device circuit.
Described authentication circuit module is the accessory special requirement of MFI (Made for iPod), if be connected to Android panel computer or common Windows Mac computers, do not need the MFI verification process, computer just can use the mutual acoustic audio data of the USB2.0 interface of circuit.
Described effect device circuit adopts the AT91SAM series monolithic as controller, adopts chip AK4556 as the receiver that receives the voice data that described musical instrument sends and described digital audio and video signals is converted to the transducer of simulated audio signal.In Fig. 3 and preferred embodiment shown in Figure 4, MCU adopts AT91SAM3S microcontroller chip, also can adopt AT91SAM7S64 microcontroller chip, or other model of AT91SAM family chip.The firmware program that MCU carries out utilizes the Codec chip AK4556 of Fig. 4 to realize coding, the decoding of audio signal, realizes simultaneously a Usb Audios equipment, utilizes Usb2.0 full speed interface to complete 48000Hz, 24Bits, the transmitted in both directions of stereo Usb Audio stream.
In described step 4, described effect device circuit exports the simulated audio signal after computing to power amplifying device by series connection audio interface (being I2S standard audio interface), described power amplifying device can be loud speaker or earphone, and LM4911 drive amplification circuit is adopted in the output of described earphone.
Described effect device circuit receives the voice data that described musical instrument sends, namely by Codec.Adc(analog-digital converter shown in Figure 1); In Fig. 3 and preferred embodiment shown in Figure 4, audio signal is connected with pin PA15, PA16, the PA17 of AT91SAM7S64 microcontroller chip by BCLK, LRCK, the STDO pin of Codec chip AK4556.After LIN, RIN audio signal process Codec chip AK4556 analog digital, (the I2S interface is by BCLK for I2S interface by Codec chip AK4556, LRCK, three pins compositions of STDO) be sent to AT91SAM7S64 microcontroller chip, digital audio and video signals after AT91SAM7S64 microcontroller chip will be processed simultaneously is sent to Codec chip AK4556 by the I2S interface, complete the analog signal reduction, generate the output of LOUT and ROUT signal.
The USB communication interface of described AT91SAM Series Controller is connected with intelligent terminal by 30 pin communication interfaces.As shown in Figure 3, with the IPHONE mobile communication time, adopt USB communication interface DDP and the DDM pin of AT91SAM7S64 microcontroller chip to carry out communication, and switching be the 30Pin interface of IPHONE, digital audio and video signals passes through the smart machines such as USB interface and iPhone and transmits alternately;
T1.Codec.Adc(analog-digital converter in AK4556 chipset Fig. 1 in Fig. 4) and the T1.Codec.Dac(digital analog converter) in one.Also be connected with the earphone output module on described AT91SAM Series Controller, i.e. LM4911 chip circuit shown in Fig. 4 is used for amplifying the T1.Codec.Dac(digital-to-analog signal converter) signal of output.Also be connected with sample frequency on described AT91SAM Series Controller and select circuit.It is 44100Hz or 48000Hz frequency that described sample frequency selects circuit to select the sample frequency of described chip AK4556 by the high-low level switching oscillating crystal of the PA23 pin of described AT91SAM Series Controller.
Adopt method of the present invention can move corresponding effect operational software on intelligent terminal, can realize multi-effect, stronger than existing effect device chip operational capability.Intelligent terminal can for the Portable intelligent terminal of the Apple Macintosh operating systems such as IPHONE mobile phone, IPAD, also can adopt existing smart mobile phone or panel computer.
The present invention is not limited to shown in Figure 1 only being connected with IPHONE or only being applied on guitar, the musical instrument that those skilled in the art can know other by inference also can adopt this method, only corresponding audio signal input need be replaced with and can get final product with the circuit module that intelligent terminal is complementary.In addition, controller also can adopt the chip beyond AT91SAM family chip commonly used in this area, as long as and can realize function set forth in the present invention.Because each amplifier or chip in AT91SAM family chip and diagram all belong to commercially produced product, but its interface principle reference data handbook, therefore do not repeat them here.
The present invention can take full advantage of the powerful operational capability of the intelligent terminals such as iPhone, and the complicated abundant professional effect device of practical function is that the general effect device is incomparable, and its performance has also surmounted common dsp chip effect device.
The above is only preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. method that adopts intelligent terminal computing audio frequency effect device, it is characterized in that, the method is connected by an effect device circuit intelligent terminal with musical instrument, described effect device circuit gathers the sound that sends of described musical instrument, and it is uploaded to described intelligent terminal, described intelligent terminal carries out the effect computing, audio signal is exported to described effect device circuit after computing is complete again, and broadcasts.
2. the method for employing intelligent terminal computing audio frequency effect device as claimed in claim 1, is characterized in that, the method comprises the steps:
Step 1: described effect device circuit is connected with musical instrument with described intelligent terminal;
Step 2: described effect device circuit receives the voice data that described musical instrument sends, and is converted into the digital signal formation that is complementary with described intelligent terminal, and is uploaded to described intelligent terminal;
Step 3: described intelligent terminal receives described digital signal formation, it is carried out the effect computing according to the parameter that the user arranges, and export the digital audio and video signals after computing to described effect device circuit;
Step 4: after the described digital audio and video signals that described effect device circuit will receive is converted to simulated audio signal, broadcast by power amplifying device.
3. the method for employing intelligent terminal computing audio frequency effect device as claimed in claim 2, is characterized in that, described step 3 also further comprises
Step 31: after exporting the digital audio and video signals after computing to described effect device circuit, described intelligent terminal detects and upgrades the user and arranges.
4. the method for employing intelligent terminal computing audio frequency effect device as claimed in claim 2, is characterized in that, described intelligent terminal is the intelligent terminal of Android operating system or the intelligent terminal of Apple Macintosh operating system.
5. the method for employing intelligent terminal computing audio frequency effect device as claimed in claim 4, is characterized in that, described intelligent terminal is the portable multi-function numerical digit multimedia player of apple.
6. the method for employing intelligent terminal computing audio frequency effect device as claimed in claim 5, is characterized in that, further comprises between described step 1 and step 2
Step 11: the authentication module on described effect device circuit sends checking request and verification msg to the portable multi-function numerical digit multimedia player of the described apple that connects, after checking, begin audio data transmission between the portable multi-function numerical digit multimedia player of described apple and described effect device circuit.
7. the method for employing intelligent terminal computing audio frequency effect device as claimed in claim 2, is characterized in that, in described step 4, described effect device circuit exports power amplifying device to by the simulated audio signal of series connection audio interface after with computing.
8. the method for employing intelligent terminal computing audio frequency effect device as claimed in claim 7, is characterized in that, described power amplifying device comprises loud speaker and/or earphone.
9. the method for employing intelligent terminal computing audio frequency effect device as claimed in claim 1, is characterized in that, described effect device circuit carries out transfer of data by Usb2.0 interface and described intelligent terminal.
10. the method for employing intelligent terminal computing audio frequency effect device as claimed in claim 9, it is characterized in that, described effect device circuit adopts the AT91SAM series monolithic as controller, adopts chip AK4556 as the receiver that receives the voice data that described musical instrument sends and described digital audio and video signals is converted to the transducer of simulated audio signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013100310408A CN103152669A (en) | 2013-01-25 | 2013-01-25 | Method for utilizing intelligent terminal to operate voice frequency effector |
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| CN2013100310408A CN103152669A (en) | 2013-01-25 | 2013-01-25 | Method for utilizing intelligent terminal to operate voice frequency effector |
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| CN2013100310408A Pending CN103152669A (en) | 2013-01-25 | 2013-01-25 | Method for utilizing intelligent terminal to operate voice frequency effector |
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| CN104318916A (en) * | 2014-09-30 | 2015-01-28 | 深圳市魔耳乐器有限公司 | Effector control device, control system and control method |
| CN105933428A (en) * | 2016-05-27 | 2016-09-07 | 飞天诚信科技股份有限公司 | Method and device for communicating with apple terminal |
| CN110428797A (en) * | 2019-08-28 | 2019-11-08 | 长沙市回音科技有限公司 | A kind of effect device, client and sound effect processing system and method |
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Application publication date: 20130612 |