CN206349147U - A kind of embedded recording and playing device for carrying out channel selecting - Google Patents
A kind of embedded recording and playing device for carrying out channel selecting Download PDFInfo
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- CN206349147U CN206349147U CN201621405045.8U CN201621405045U CN206349147U CN 206349147 U CN206349147 U CN 206349147U CN 201621405045 U CN201621405045 U CN 201621405045U CN 206349147 U CN206349147 U CN 206349147U
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Abstract
The utility model is related to a kind of embedded recording and playing device for carrying out channel selecting, including external equipment, control module, signal codec module, digital signal processing module and data memory module, the control module is connected with external equipment, signal codec module, digital signal processing module and data memory module respectively, the signal codec module is connected with digital signal processing module, described device also includes channel selecting module, and the channel selecting module is connected with external equipment, signal codec module and control module respectively.Compared with prior art, the utility model there is to carry out channel selecting, can be while being recorded and playback, configuration number of chips is few and saves cost.
Description
Technical field
The utility model is related to the communications field, is filled more particularly, to a kind of embedded record/playback for carrying out channel selecting
Put.
Background technology
It is frequently necessary in existing each electronic product or system to being acquired of the audio signal of simulation, records formation
Recording file, and the function of checking or play back at any time any time recording is provided, existing recording storage scheme typically selects valency
The expensive industrial computer computer of lattice or server are realized, in Miniature Terminal product cost higher WinCE or Linux etc. can be selected embedding
Enter formula platform, be equipped with specialty sound card equipment as analogue audio frequency channel selecting and voice acquisition system, although these schemes
Good passage switching, recording and playback effect have been reached, but it has the disadvantage：Channel selecting, volume gain parameter are stilled need
It is artificial to participate in regulation, and cost is too high, the extensive application to market generates restriction.
Patent CN201420082145.5 provides a kind of embedded power dispatching recorder device, passes through AD conversion unit, number
The cooperation of word Signal Compression processing unit, data storage management unit and data storage cell, realize a kind of framework it is simple and
Cost-effective recording device, but the device may only realize sound-recording function, and need to configure multiple AD conversion units
Multichannel recording is realized, channel selecting can not be also carried out as needed, practicality is poor.
Utility model content
The purpose of this utility model is to provide a kind of embedded record/playback dress for carrying out channel selecting regarding to the issue above
Put.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of embedded recording and playing device for carrying out channel selecting, including external equipment, control module, signal codec
Module, digital signal processing module and data memory module, the control module respectively with external equipment, signal codec mould
Block, digital signal processing module and data memory module connection, the signal codec module connect with digital signal processing module
Connect, described device also include channel selecting module, the channel selecting module respectively with external equipment, signal codec module and
Control module is connected.
The channel selecting module includes the signal amplifier and channel to channel adapter that are sequentially connected, the signal amplifier with
External equipment is connected, and the channel to channel adapter is connected with control module.
The control module includes ARM control chips.
The signal codec module includes digital signal processing chip.
The data memory module includes Flash chip.
The external equipment includes audio input device, audio output apparatus and human-computer interaction device.
The audio output apparatus includes earphone, loudspeaker and stereo equipment.
The human-computer interaction device includes touching display screen, control button, USB interface, network interface and wave point.
Described device also includes mixer, and the mixer connects with channel selecting module and signal codec module respectively
Connect.
Compared with prior art, the utility model has the advantages that：
(1) channel selecting module is provided with, can be realized by control module and the audio signal for inputting and exporting is entered
Row of channels is selected, and without thinking to participate in, is easy to control, is greatlyd save cost.
(2) audio signal carries out analog-to-digital conversion after channel selecting by signal codec module, passes through with traditional
Multiple AD conversion units carry out conversion to signal and compared, and consume chip less, cost is lower.
(3) control module is connected with signal codec module, and signal codec module is initialized so that signal is compiled
Decoder module can be operated in either simplex or dual-mode, and flexibly configurable is to broadcast and select certain all the way in record or MCVF multichannel voice frequency is entered
Row recording, can play back recording to some or multiple audio frequency apparatuses, such as earphone, loudspeaker, other stereo equipments.It is hard in no increase
Added in the case of part cost more multi-functional.
(4) common digital signal processing chip and Flash chip are used, cost is low, is easy to mass production.
(5) external equipment additionally provides human-computer interaction device in addition to sound pick-up outfit and tone playing equipment, is easy to artificial to record
Player function is controlled, and improves the degree easy to use of user.
(6) mixer is additionally provided with device, audio mixing can be carried out to recording or playback content, can be used for stereosonic line
Input signal provides alarm call.
Brief description of the drawings
Fig. 1 is the structural representation of embedded recording and playing device；
Fig. 2 is the structural representation of channel selecting module；
Fig. 3 is the flow chart of embedded record/playback method；
Fig. 4 is the method flow diagram of recording step；
Fig. 5 is the method flow diagram of playback step；
Wherein, 1 is channel selecting module, and 2 be signal codec module, and 3 be digital signal processing module, and 4 be control mould
Block, 5 be data memory module, and 11 be signal amplifier, and 12 be channel to channel adapter.
Embodiment
The utility model is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with the utility model
Implemented premised on technical scheme, give detailed embodiment and specific operating process, but guarantor of the present utility model
Shield scope is not limited to following embodiments.
It is as shown in Figure 1 a kind of embedded recording and playing device for carrying out channel selecting provided in the present embodiment, including：
External equipment, the order for receiving user, and audio signal is received and played；Control module 4, it is external for receiving
The order of the user of equipment transmission, and send control signal；Channel selecting module 1, for the control signal according to control module 4
The passage for the audio signal that selection is received and played；Signal codec module 2, for being entered according to the control signal of control module 4
Row initialization, and audio signal is coded and decoded, realize the mutual conversion of simulated audio signal and digital audio and video signals；
Digital signal processing module 3, communicate and data biography for compressing and decompressing digital audio and video signals, and with control module 4
It is defeated；Data memory module 5, for receiving the digital audio and video signals after digital signal processing module 3 compresses by control module 4,
And it is stored.
Wherein, channel selecting module 1 as shown in Fig. 2 including：Channel to channel adapter 12, is connected with control module 4, for root
According to the break-make of the order control passage of control signal；Signal amplifier 11, is connected with external equipment and channel to channel adapter 12 respectively,
For being amplified to audio signal.Control module 4 includes：Passage control submodule, respectively with external equipment and channel selecting
Module 1 is connected, and for sending channel control signals according to the order of user, control passage selecting module 1 carries out channel selecting；Compile
Initialization submodule is decoded, is connected respectively with external equipment and signal codec module 2, for being sent just according to the order of user
Beginningization signal, the mode of operation of control signal coding/decoding module 2, the mode of operation includes single-simplex operation pattern and diplex operation
Pattern；Signal transmits submodule, is connected respectively with digital signal processing module 3 and data memory module 5, for realizing digital letter
The two-way signaling transmission of number processing module 3 and data memory module 5.External equipment includes：Audio input device, for receiving sound
Frequency signal；Audio output apparatus, for playing audio signal；Human-computer interaction device, for receive user order and to
Family feedback information, including touching display screen, control button, USB interface, network interface and wave point.The device also includes mixed
Sound device, is connected with channel selecting module 1 and signal codec module 2 respectively, for realizing that the signal of different passages is mixed.
The specific implementation of the device is as follows：The device it is main by Codec chips, dsp chip, ARM controller and
Flash chip is constituted, and is connected between each chip by bus.Codec chips, are a kind of audio coding decoding chips, available for mould
Intend the mutual conversion between audio and DAB.Dsp chip (uses model dsPICxx series in the present embodiment
Dsp chip), it is a kind of chip of Digital Signal Processing, available for the digital encoding and decoding library software of operation, to the numeral of input
Audio is compressed, decompression, intensity stereo coding, eliminates sense organ echo.ARM controller (is used in the present embodiment
It is the low-power consumption Cortex-M3 chips for the model STM32Fxx series that dominant frequency is 72MHz), it is a kind of microprocessor chip, can
Logical control program for running user.Flash chip, is a kind of nonvolatile flash memory chip, can be NOR, NAND or its
The flash storage of his species, the storage available for recording file.
Using the above-mentioned embedded recording and playing device for carrying out channel selecting, to carry out the step of embedded record/playback method
Suddenly as shown in figure 3, being specially：
S1) external equipment receives the order of user, and whether control module 4 is recorded and put simultaneously according to command determination
Sound, if then entering step s2), if otherwise entering step s3)；
S2) the control signal coding/decoding module 2 of control module 4 initializes and enters dual-mode, and enters recording step simultaneously
Rapid and playback step；
S3) the control signal coding/decoding module 2 of control module 4 initializes and enters simplex mode, is entered according to the order of user
Enter to record step or playback step.
Wherein, recording step is as shown in figure 4, be specially：
A1) external equipment receives audio signal and transmits it to channel selecting module 1；
A2) channel selecting module 1 is screened, and pass according to the control signal of control module 4 after amplifying to audio signal
Transport to signal codec module 2；
A3) signal codec module 2 is encoded to audio signal, is converted into digital audio and video signals and is transmitted to numeral letter
Number processing module 3；
A4) digital signal processing module 3 is compressed to digital audio and video signals, and is transmitted to control module 4；
A5) digital audio and video signals after compression are write data memory module 5 by control module 4, complete recording.
Playback step is as shown in figure 5, be specially：
B1) control module 4 reads voice data according to the order of user from data memory module 5, and transmits to numeral
Signal processing module 3；
B2) voice data of 3 pairs of readings of digital signal processing module is decompressed, and is transmitted to signal codec module
2；
B3) voice data after the 2 pairs of decompressions of signal codec module is decoded, and is converted into simulated audio signal and is passed
Transport to channel selecting module 1；
B4) channel selecting module 1 is amplified, and pass according to the control signal of control module 4 after being screened to simulated audio signal
Transport to external equipment；
B5) external equipment plays the simulated audio signal received, completes playback.
Claims (9)
1. a kind of embedded recording and playing device for carrying out channel selecting, including external equipment, control module, signal codec mould
Block, digital signal processing module and data memory module, the control module respectively with external equipment, signal codec module,
Digital signal processing module and data memory module connection, the signal codec module are connected with digital signal processing module,
Characterized in that, described device also includes channel selecting module, the channel selecting module is compiled with external equipment, signal solve respectively
Code module and control module connection.
2. the embedded recording and playing device according to claim 1 for carrying out channel selecting, it is characterised in that the passage
Selecting module includes the signal amplifier and channel to channel adapter being sequentially connected, and the signal amplifier is connected with external equipment, institute
Channel to channel adapter is stated to be connected with control module.
3. the embedded recording and playing device according to claim 1 for carrying out channel selecting, it is characterised in that the control
Module includes ARM control chips.
4. the embedded recording and playing device according to claim 1 for carrying out channel selecting, it is characterised in that the signal
Coding/decoding module includes digital signal processing chip.
5. the embedded recording and playing device according to claim 1 for carrying out channel selecting, it is characterised in that the data
Memory module includes Flash chip.
6. the embedded recording and playing device according to claim 1 for carrying out channel selecting, it is characterised in that described external
Equipment includes audio input device, audio output apparatus and human-computer interaction device.
7. the embedded recording and playing device according to claim 6 for carrying out channel selecting, it is characterised in that the audio
Output equipment includes earphone, loudspeaker and stereo equipment.
8. the embedded recording and playing device according to claim 6 for carrying out channel selecting, it is characterised in that described man-machine
Interactive device includes touching display screen, control button, USB interface, network interface and wave point.
9. the embedded recording and playing device according to claim 1 for carrying out channel selecting, it is characterised in that described device
Also include mixer, the mixer is connected with channel selecting module and signal codec module respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621405045.8U CN206349147U (en) | 2016-12-20 | 2016-12-20 | A kind of embedded recording and playing device for carrying out channel selecting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621405045.8U CN206349147U (en) | 2016-12-20 | 2016-12-20 | A kind of embedded recording and playing device for carrying out channel selecting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206349147U true CN206349147U (en) | 2017-07-21 |
Family
ID=59317268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621405045.8U Active CN206349147U (en) | 2016-12-20 | 2016-12-20 | A kind of embedded recording and playing device for carrying out channel selecting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206349147U (en) |
-
2016
- 2016-12-20 CN CN201621405045.8U patent/CN206349147U/en active Active
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