CN101567183A - Digital camera audio processor - Google Patents
Digital camera audio processor Download PDFInfo
- Publication number
- CN101567183A CN101567183A CNA2008100277220A CN200810027722A CN101567183A CN 101567183 A CN101567183 A CN 101567183A CN A2008100277220 A CNA2008100277220 A CN A2008100277220A CN 200810027722 A CN200810027722 A CN 200810027722A CN 101567183 A CN101567183 A CN 101567183A
- Authority
- CN
- China
- Prior art keywords
- audio
- signal
- output
- control
- dsp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000005236 sound signal Effects 0.000 claims abstract description 36
- 238000000034 method Methods 0.000 claims abstract description 23
- 238000006243 chemical reaction Methods 0.000 claims description 20
- 238000004458 analytical method Methods 0.000 claims description 16
- 238000009826 distribution Methods 0.000 claims description 13
- 238000013500 data storage Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Images
Landscapes
- Studio Devices (AREA)
Abstract
The invention discloses a digital camera audio processor. Signals requiring audio processing are decoded through an audio input and output unit, and the decoded audio signals are output to a digital signal processor (DSP) mainboard which is changed into 18 paths of output after the smooth processing of a No.31 section of a No.6 path and the frequency-divisional processing of a No.2/3 section of a No.6 path. By combining a control signal, the DSP processes the audio signals and then outputs the processed audio signals to the audio input and output unit. The digital camera audio processor adopts a control signal interface and can have a conversation with an external personal computer (PC) through the control signal interface. The digital camera audio processor adopts the DSP mainboard to process the audio signals, simplifies the system, generates good sound effects and has a friendly operation interface.
Description
[technical field]
The present invention relates to Audio Processing, relate in particular to a kind of digital camera audio processor.
[background technology]
Audio Processing generally is divided into analogue audio frequency to be handled and digital audio processing, and the effect of analogue audio frequency processor processing is too thin, uninteresting, dull, lacks presence, causes the film market depression depressed; And digital audio processing is such as the appearance of Doby, DSP, AC-3, DTS, original sound effect when participating in the cintest performance in the film incisively and vividly.The DSP digital camera audio is handled in China's same industry and is now still belonged to development, and abroad, this technology is quite ripe.So some large-scale movie theatres in order to obtain better audio frequency effect, need to introduce external digital camera audio processor.Therefore, be badly in need of domestic digital movie is realized the audio frequency apparatus production domesticization, broaden domestic market that reduce the motion picture projection cost, this is the symbol of social progress, also is the needs that living standards of the people improve.
[summary of the invention]
The present invention is directed to the above-mentioned defective of prior art, provide a kind of multiple input channel that has, the digital camera audio processor that audio is good.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:
Digital camera audio processor comprises control signal interface, audio frequency input-output unit, DSP mainboard, power module:
The control signal interface is used to receive extraneous control signal, and this control signal is outputed to the DSP mainboard;
The audio frequency input-output unit comprises audio frequency importation and audio output part branch, and the audio frequency importation is used for received audio signal, and exports the DSP mainboard to, and the audio output part branch will receive the sound signal and the output of DSP mainboard output;
The DSP mainboard, comprise plural groups A/D conversion chip, the analysis and Control module, the DSP process chip, the D/A conversion chip, signal output distribution module, the simulated audio signal of A/D conversion chip reception audio frequency importation input is converted to digital signal and exports the DSP process chip to, the analysis and Control module, the extraneous control signal and the analyzing and processing that receive the control signal interface are exported deal with data then to the DSP process chip, the DSP process chip is handled the digital signal of A/D conversion chip input according to the deal with data of analysis and Control module output, and export this processing signals to the D/A conversion chip, the D/A conversion chip is converted to simulating signal with the digital signal that receives and exports signal output signal output distribution module to, signal output distribution module has plural number and plants the frequency division pattern, distributes with corresponding kind of number form formula then to export the audio output part branch to;
Power module is for audio frequency input-output unit and DSP mainboard provide working power.
Preferably, described signal output distribution module have straight-through, two divided-frequency, three frequency division frequency division pattern and the simulating signal frequency division that will receive after with LOW, MID, HIGH output.
Preferably, described analysis and Control module comprises control and data processing chip and control data storage chip, control is analyzed the control signal that receives with data processing chip, and offer the DSP process chip to the deal with data that control data storage chip inquiry sets according to analysis result, make it carry out gain-adjusted, 31 sections equilibrium treatment, three kinds according to the deal with data that inquires and can select frequency division earlier and handle with output and distribute pending digital audio and video signals.
Preferably, described digital camera audio processor also comprises control panel, triggers control signal and sends into the analysis and Control module, and control panel also is connected with power module, powers by power module.
Preferably, described audio frequency importation comprises that also 25 pin film input interfaces, 6 tunnel analog input interfaces, 6 channel gain adjustment modules and three kinds can select frequency division earlier and handle and the output distributor circuit, by 25 pin film input interfaces input simulated audio signal, this signal can be selected the frequency division processing earlier through three kinds again and export pending simulated audio signal with the output distributor circuit successively through 6 tunnel analog input interfaces and 6 channel gain adjustment modules.
Preferably, described audio frequency importation also comprises 4 way word film input interfaces, by 4 way word film input interface input digital audio signals, this signal is sent into described audio decoding unit and is decoded, and export decoded sound signal to the audio frequency importation, through 6 tunnel analog input interfaces and 6 channel gain adjustment modules, can select the frequency division processing earlier through three kinds again and export pending simulated audio signal successively with the output distributor circuit.
Preferably, integrated USB interface of described control signal interface and RS-232 interface.
Preferably, described DSP mainboard is 6 groups of A/D conversion chips, analysis and Control module, DSP process chip, D/A conversion chip, signal output distribution module.
Preferably, described audio output part branch comprises 18 road audio output signal output modules, is 6 tunnel 18 crossing balance outputs.
As can be seen from the above technical solutions, the present invention adopts the DSP mainboard of 6 tunnel 31 sections equilibrium treatment, 18 tunnel outputs that sound signal is handled, and has simplified system and has produced good audio simultaneously; Usefulness of the present invention also has been the control signal interface integrated, can directly digital camera audio processor of the present invention and PC be carried out man-machine conversation by this interface, and friendly operation interface is provided.
[description of drawings]
Fig. 1 is the connection diagram of each ingredient of the present invention;
Fig. 2 is an Audio Signal Processing process flow diagram of the present invention.
[embodiment]
The present invention is further detailed explanation below in conjunction with embodiment.
Digital camera audio processor provided by the invention as shown in Figure 1, comprises
Control signal interface 3 with extraneous control module, as PC, connects, and transmits the control signal of extraneous control module, and control signal interface 3 can have two kinds of different interfaces, and interface 31 as shown in Figure 1 is RS-232; Interface 32 is a USB interface, and USB interface is changeed RS-232 conversion chip 34 through level transferring chip 33 as MAX232 and USB, as PL2303HX, and transmission of control signals.
In addition, also comprise control panel 4, therefore, the user not only can be by the extraneous control module output of PC control signal, also can trigger control signal simultaneously by control panel 4, control panel 4 can trigger simulation movies signal 41, digital movie control signal 42, analog input signal 43, audio mode signal 44, through connect signal 45, mute signal 46, duty demonstration 47 and the mode that can control DSP mainboard audio signal with the extraneous control module of PC jointly are user-friendly to.
Audio frequency input and output unit 2 comprise
Audio frequency importation 21 can have 25 pin film input interfaces 211 and 4 way word film input interfaces 212; Wherein, by 25 pin film input interfaces, 211 input simulating signals, by 4 way word film input interface input digital audio signals, simulated audio signal is successively through 6 tunnel analog input interfaces 213 and 6 paths gain adjustment module 215, and can select frequency division earlier by three kinds and handle and the pending simulated audio signal of output distributor circuit 214 outputs;
Audio decoding unit 5, receive the digital audio and video signals of 4 way word film input interfaces 212, decode, export decoded sound signal through 6 tunnel analog input interfaces 213 and 6 paths gain adjustment module 215, and can select frequency division earlier by three kinds and handle and the pending simulated audio signal of output distributor circuit 214 outputs;
Audio output part divides 22, comprises 18 road audio signal output modules 221,
DSP main board 1 is divided into 6 treatment channel 11～16, and each treatment channel comprises modulus conversion chip 111～161, DSP process chip 112～162, analog-digital chip 113～163; The DSP mainboard also comprises the analysis and Control module, is using control and data processing chip 17 and control data storage chip 18 herein, and signal output distribution module 19.
DSP mainboard 1, reception can be selected frequency division earlier from three kinds and handle the pending simulated audio signal of exporting with output distributor circuit 214, and the modulus conversion chip 111 of the passage (as treatment channel 11) in 6 treatment channel 11～16 carries out analog to digital conversion, exports pending digital audio and video signals and sends into corresponding D SP process chip 112;
The extraneous control module of 17 pairs of PCs of control and data processing chip is exported control signal or is analyzed through the control signal that control panel 4 triggers, and inquires the data that set to control data chip 18 according to analysis result;
DSP process chip 112 inquires the deal with data that sets through control and data processing chip 17 to control formula pin-saving chip 18, pending digital audio and video signals is carried out corresponding gain-adjusted, frequency division and equilibrium treatment according to the requirement of the deal with data that inquires, and output handled digital audio and video signals to corresponding analog-digital chip 113, changes into process analog audio signals to outputing to signal output distribution module 19;
Signal output distribution module 19 is with signal 18 road audio signal output modules 221.
For example the Audio Signal Processing process in the single channel is introduced below, referring to shown in Figure 2, after pending digital audio and video signals enters DSP process chip (as DSP process chip 112), the deal with data of the control data storage chip 18 that inquires according to said process, finish full gain successively and regulate processing, and divide single channel to carry out single channel gain-adjusted, 31 sections equilibrium treatment successively, regulate pending sound signal audio, carry out frequency division according to the control signal in the control data storage chip 18 at last and handle.DSP mainboard 1 can have straight-through (full range), two frequencies and three three kinds of frequency division patterns frequently, through having LOW output, MID output behind the frequency division, with three kinds of output forms of HIGH output, because DSP mainboard 1 can handle the pending sound signal of 6 passages, so DSP mainboard 1 can be exported 18 tunnel audio signal.
Power module 6 can provide multiple voltage, is described signal input and output unit 2, DSP mainboard 1, and control panel 4 power supplies.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (9)
1, digital camera audio processor is characterized in that, comprises control signal interface, audio frequency input-output unit, DSP mainboard, power module:
The control signal interface is used to receive extraneous control signal, and this control signal is outputed to the DSP mainboard;
The audio frequency input-output unit comprises audio frequency importation and audio output part branch, and the audio frequency importation is used for received audio signal, and exports the DSP mainboard to, and the audio output part branch will receive the sound signal and the output of DSP mainboard output;
The DSP mainboard, comprise plural groups A/D conversion chip, the analysis and Control module, the DSP process chip, the D/A conversion chip, signal output distribution module, the simulated audio signal of A/D conversion chip reception audio frequency importation input is converted to digital signal and exports the DSP process chip to, the analysis and Control module, the extraneous control signal and the analyzing and processing that receive the control signal interface are exported deal with data then to the DSP process chip, the DSP process chip is handled the digital signal of A/D conversion chip input according to the deal with data of analysis and Control module output, and export this processing signals to the D/A conversion chip, the D/A conversion chip is converted to simulating signal with the digital signal that receives and exports signal output signal output distribution module to, signal output distribution module has plural number and plants the frequency division pattern, distributes with corresponding kind of number form formula then to export the audio output part branch to;
Power module is for audio frequency input-output unit and DSP mainboard provide working power.
2, digital camera audio processor according to claim 1 is characterized in that: described signal output distribution module have straight-through, two divided-frequency, three frequency division frequency division pattern and the simulating signal frequency division that will receive after with LOW, MID, HIGH output.
3, digital camera audio processor according to claim 1, it is characterized in that: described analysis and Control module comprises control and data processing chip and control data storage chip, control is analyzed the control signal that receives with data processing chip, and offer the DSP process chip according to analysis result to the deal with data that control data storage chip inquiry sets, make its to pending digital audio and video signals according to the deal with data that inquires carry out gain-adjusted, frequency division is handled and 31 sections equilibrium treatment.
4, digital camera audio processor according to claim 1 is characterized in that: also comprise control panel, trigger control signal and send into the analysis and Control module that control panel also is connected with power module, powers by power module.
5, digital camera audio processor according to claim 1, it is characterized in that: described audio frequency importation comprises that also 25 pin film audio input interface, 6 tunnel analog input interfaces, 6 channel gain adjustment modules and three kinds can select the frequency division treatment circuit earlier, by 25 pin film input interfaces input simulated audio signal, this signal can be selected the frequency division treatment circuit earlier through three kinds again and export pending simulated audio signal successively through 6 tunnel analog input interfaces and 6 channel gain adjustment modules.
6, digital camera audio processor according to claim 1, it is characterized in that: described audio frequency importation also comprises 4 way word film input interfaces, by 4 way word film input interface input digital audio signals, this signal is sent into described audio decoding unit and is decoded, and export decoded sound signal to the audio frequency importation, through 6 tunnel analog input interfaces and 6 channel gain adjustment modules, can select the frequency division treatment circuit earlier through three kinds again and export pending simulated audio signal successively.
7, digital camera audio processor according to claim 1 is characterized in that: integrated USB interface of described control signal interface and RS-232 interface.
8, digital camera audio processor according to claim 1 and 2 is characterized in that: described DSP mainboard is 6 groups of A/D conversion chips, analysis and Control module, DSP process chip, D/A conversion chip, signal output distribution module.
9, digital camera audio processor according to claim 8 is characterized in that: described audio output part branch comprises 18 road audio output signal output modules, is 6 tunnel 18 crossing balance outputs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810027722A CN101567183B (en) | 2008-04-25 | 2008-04-25 | Digital camera audio processor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810027722A CN101567183B (en) | 2008-04-25 | 2008-04-25 | Digital camera audio processor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101567183A true CN101567183A (en) | 2009-10-28 |
| CN101567183B CN101567183B (en) | 2012-10-03 |
Family
ID=41283317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810027722A Active CN101567183B (en) | 2008-04-25 | 2008-04-25 | Digital camera audio processor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101567183B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103731797A (en) * | 2014-01-22 | 2014-04-16 | 广州飞达音响专业器材有限公司 | Digital cinema audio processor with sixteen channels |
| CN109218640A (en) * | 2018-09-13 | 2019-01-15 | 广州市保伦电子有限公司 | A kind of small space meeting central control system and its tuning control method, storage medium |
| CN109672962A (en) * | 2018-12-27 | 2019-04-23 | 联想(北京)有限公司 | A kind of information processing method and electronic equipment |
| CN115113573A (en) * | 2022-08-16 | 2022-09-27 | 广州市保伦电子有限公司 | Digital conference host and conference control method |
-
2008
- 2008-04-25 CN CN200810027722A patent/CN101567183B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103731797A (en) * | 2014-01-22 | 2014-04-16 | 广州飞达音响专业器材有限公司 | Digital cinema audio processor with sixteen channels |
| CN103731797B (en) * | 2014-01-22 | 2016-03-09 | 广州飞达音响股份有限公司 | A kind of digital camera audio processor with ten Hexamermis spp |
| CN109218640A (en) * | 2018-09-13 | 2019-01-15 | 广州市保伦电子有限公司 | A kind of small space meeting central control system and its tuning control method, storage medium |
| CN109672962A (en) * | 2018-12-27 | 2019-04-23 | 联想(北京)有限公司 | A kind of information processing method and electronic equipment |
| CN115113573A (en) * | 2022-08-16 | 2022-09-27 | 广州市保伦电子有限公司 | Digital conference host and conference control method |
| CN115113573B (en) * | 2022-08-16 | 2024-03-08 | 广东保伦电子股份有限公司 | Conference control method of digital conference host |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101567183B (en) | 2012-10-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6349285B1 (en) | Audio bass management methods and circuits and systems using the same | |
| CN101484935A (en) | Methods and apparatuses for encoding and decoding object-based audio signals | |
| CN101567183B (en) | Digital camera audio processor | |
| CN110349582A (en) | Display device and far field speech processing circuit | |
| CN201898592U (en) | Multifunctional USB (Universal Serial Bus) sound box chip and sound box device | |
| CN103474082A (en) | Multi-microphone vocal accompaniment marking system and method thereof | |
| CN103167375A (en) | Face recognition loudspeaker device and voice orientation adjusting method thereof | |
| CN108510997A (en) | Electronic equipment and echo cancel method applied to electronic equipment | |
| CN102404517A (en) | Television device and sound accompanying and debugging method thereof | |
| CN106941643A (en) | The multi-functional intelligent sound control method of one kind set | |
| CN206759671U (en) | A kind of microphone | |
| CN202353798U (en) | Audio processor of digital cinema | |
| CN201185005Y (en) | Digital cinema audio processor | |
| CN203434995U (en) | Electronic sound console with multi-output channels | |
| CN109473111A (en) | A kind of voice enabling apparatus and method | |
| CN205160676U (en) | Adaptation mobile terminal's integrative equipment of audio frequency and video | |
| CN105847951A (en) | Method and device for play controlling in audio and video playing system | |
| CN103701551A (en) | Multichannel digital sound console and signal processing method thereof | |
| WO2021004067A1 (en) | Display device | |
| CN203193856U (en) | Effector plug-in connected with intelligent terminal | |
| CN203933928U (en) | A kind of DSP microphone sound effect processing system | |
| CN203261466U (en) | Effector apparatus connected with intelligent terminal | |
| CN209515191U (en) | A kind of voice enabling apparatus | |
| CN105101011A (en) | Audio output control method and device | |
| CN211352433U (en) | Multi-channel audio mixer, multi-channel audio mixing device and multi-channel audio mixing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUANGZHOU FIDEK AUDIO EQUIPMENT CO., LTD. Free format text: FORMER OWNER: HE HUANCHAO Effective date: 20131118 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131118 Address after: 510820 Feida Industrial Park, charcoal Town, Huadu District, Guangdong, Guangzhou Patentee after: GUANGZHOU FIDEK PROFESSIONAL AUDIO EQUIPMENT Co.,Ltd. Address before: 510820, Guangzhou, Guangdong province Huadu District charcoal step Feida Industrial Park Patentee before: He Huanchao |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 510820 Feida Industrial Park, charcoal Town, Huadu District, Guangdong, Guangzhou Patentee after: FIRST AUDIO MANUFACTURING Co.,Ltd. Address before: 510820 Feida Industrial Park, charcoal Town, Huadu District, Guangdong, Guangzhou Patentee before: GUANGZHOU FIDEK PROFESSIONAL AUDIO EQUIPMENT Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 510820 Feida Industrial Park, charcoal Town, Huadu District, Guangdong, Guangzhou Patentee after: Guangzhou Feida Audio Co.,Ltd. Address before: 510820 Feida Industrial Park, charcoal Town, Huadu District, Guangdong, Guangzhou Patentee before: FIRST AUDIO MANUFACTURING Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |