CN205039809U - Simulation intercom with audio frequency reinforcing - Google Patents
Simulation intercom with audio frequency reinforcing Download PDFInfo
- Publication number
- CN205039809U CN205039809U CN201520872669.XU CN201520872669U CN205039809U CN 205039809 U CN205039809 U CN 205039809U CN 201520872669 U CN201520872669 U CN 201520872669U CN 205039809 U CN205039809 U CN 205039809U
- Authority
- CN
- China
- Prior art keywords
- digital
- module
- audio
- analog
- digital signals
- 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.)
- Active
Links
Abstract
The utility model provides a simulation intercom with audio frequency reinforcing. The utility model discloses simulation intercom with audio frequency reinforcing, include: interconnect's audio frequency digital signal processor DSP, digital analog converter, adc and radio frequency module, wherein, adc for it converts digital speech signal into and erupts simultaneously and give audio frequency DSP to simulate speech signal with received, audio frequency DSP, it is right to be used for the digital voice signal transmission that the digital voice signal will go upward after the audio frequency humidifying treatment will be handled gives digital analog converter, digital analog converter for to receive digital voice signal conversion gives for simulation speech signal erupts simultaneously radio frequency module, radio frequency module is used for sending simulation speech signal. The utility model discloses improve up -downgoing pronunciation quality, effectively promoted user experience.
Description
Technical field
The utility model relates to communication technical field, particularly relates to a kind of analog-interphone having audio frequency and strengthen.
Background technology
At wireless communication technology field, analog-interphone is lower due to its technology relative maturity, cost, obtains and applies comparatively widely.
Fig. 1 is the analog-interphone structural representation of prior art.As shown in Figure 1, existing analog-interphone, the analog electrical signal that speaker holds intercom to be gathered by Mike directly carries out frequency modulation after gain is amplified, and is sent by radio frequency.Receiving terminal intercom, the signal of telecommunication also, after demodulation, is directly supplied to the broadcasting device of rear end by radio frequency reception.
Therefore, hold intercom for speaker, if in a noisy environment, noise also can pass to the receiving terminal intercom of opposite end, and what cause information under noisy environment to be transmitted is inaccurate, and receiving terminal identifying information is comparatively difficult, and the voice quality of receiving terminal is poor.
Utility model content
The utility model provides a kind of analog-interphone having audio frequency and strengthen, to overcome the problem that in prior art, the voice quality of analog-interphone is poor.
First aspect, the utility model provides a kind of analog-interphone having audio frequency and strengthen, and comprising:
Interconnective audio digital signal processor DSP, digital to analog converter, analog to digital converter and radio-frequency module;
Wherein, described analog to digital converter, for being converted to audio digital signals by the analog voice signal received and sending to audio frequency DSP;
Described audio frequency DSP, strengthens process for carrying out upstream tones to described audio digital signals and the audio digital signals after process is sent to described digital to analog converter;
Described digital to analog converter, for being converted to analog voice signal by the described audio digital signals received and sending to described radio-frequency module;
Described radio-frequency module, for sending described analog voice signal.
Alternatively, described audio frequency DSP comprises:
The gain amplification module, the noise reduction module that connect successively;
Wherein, described gain amplification module, the gain for the audio digital signals sent described analog to digital converter is amplified;
Described noise reduction module, for eliminating the background noise in the audio digital signals after gain amplification.
Alternatively, described audio frequency DSP, also comprises:
The digital equalising module connected successively, automatic growth control module and dynamic range control module;
Wherein, the input of described digital equalising module is connected with the output of described noise reduction module;
The output of described digital equalising module is connected with the input of described automatic growth control;
Wherein, described digital equalising module, the audio digital signals for the different frequency interval exported described noise reduction module carries out Amplitude Compensation;
Described automatic growth control module, for automatically adjusting the volume of the audio digital signals that described digital equalising module exports, expands the pickup scope of Mike;
Described dynamic range control module, does dynamic compression for the audio digital signals exported automatic growth control module, to prevent audio digital signals saturated, and the audio digital signals after process is sent to described digital to analog converter.
Second aspect, the utility model provides a kind of analog-interphone having audio frequency and strengthen, and comprising:
Interconnective audio digital signal processor DSP, digital to analog converter, analog to digital converter, radio-frequency module and player;
Wherein, described radio-frequency module, for receiving analog voice signal, and sends to described analog to digital converter after carrying out demodulation to described analog voice signal;
Described analog to digital converter, for being converted to audio digital signals by the analog voice signal after the demodulation received and sending to audio frequency DSP;
Described audio frequency DSP, strengthens process for carrying out downstream tones to described audio digital signals and the audio digital signals after process is sent to described digital to analog converter;
Described digital to analog converter, for being converted to analog voice signal by the described audio digital signals received and sending to described player;
Described player, for playing described analog voice signal.
Alternatively, described audio frequency DSP comprises:
The gain amplification module connected successively: noise reduction module;
Wherein, described gain amplification module, the gain for the audio digital signals sent described analog to digital converter is amplified;
Described noise reduction module, for eliminating the background noise in the audio digital signals after gain amplification.
Alternatively, described audio frequency DSP, also comprises:
Connect digital balance module and dynamic range control module successively;
Wherein, the input of described digital equalising module is connected with the output of described noise reduction module;
The output of described digital equalising module is connected with the input of described dynamic range control module;
Wherein, described digital equalising module, the audio digital signals for the different frequency interval exported described noise reduction module carries out Amplitude Compensation;
Described dynamic range control module, does dynamic compression for the audio digital signals exported digital balance module, to prevent audio digital signals saturated, and the audio digital signals after process is sent to described digital to analog converter.
Alternatively, described player comprises:
Audio frequency power amplifier and loud speaker.
The utility model has the analog-interphone that audio frequency strengthens, transmitting terminal by microphones to analog voice signal be converted to audio digital signals through analog to digital converter, then this audio digital signals sends to digital to analog converter after the upstream tones of audio frequency DSP strengthens process, be converted to analog voice signal, send through radio-frequency module, the analog voice signal that receiving terminal is received by radio-frequency module is converted to audio digital signals through analog to digital converter, then this audio digital signals sends to digital to analog converter after the downstream tones of audio frequency DSP strengthens process, be converted to analog voice signal, send through player, wherein, strengthen process because audio frequency DSP has carried out up-downgoing audio frequency, therefore improve up-downgoing voice quality, effectively improve Consumer's Experience.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the analog-interphone structural representation of prior art;
Fig. 2 is the structural representation that the utility model has analog-interphone one embodiment that audio frequency strengthens;
Fig. 3 is the audio frequency DSP structural representation that the utility model has analog-interphone one embodiment that audio frequency strengthens;
Fig. 4 is the structural representation that the utility model has another embodiment of analog-interphone that audio frequency strengthens;
Fig. 5 is the audio frequency DSP structural representation that the utility model has another embodiment of analog-interphone that audio frequency strengthens;
Fig. 6 is the structural representation that the utility model has the another embodiment of analog-interphone that audio frequency strengthens.
Embodiment
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Fig. 2 is the structural representation that the utility model has analog-interphone one embodiment that audio frequency strengthens.The intercom of the present embodiment is transmitting terminal intercom.As shown in Figure 2, the analog-interphone with audio frequency enhancing of the present embodiment, comprising:
Interconnective audio digital signal processor (DigitalSignalProcessor is called for short DSP), digital to analog converter, analog to digital converter and radio-frequency module;
Wherein, described analog to digital converter, for being converted to audio digital signals by the analog voice signal received and sending to audio frequency DSP;
Described audio frequency DSP, strengthens process for carrying out upstream tones to described audio digital signals and the audio digital signals after process is sent to described digital to analog converter;
Described digital to analog converter, for being converted to analog voice signal by the described audio digital signals received and sending to described radio-frequency module;
Described radio-frequency module, for sending described analog voice signal.
Specifically, microphones to analog voice signal be converted to audio digital signals through analog to digital converter, then this audio digital signals sends to digital to analog converter after the upstream tones of audio frequency DSP strengthens process, is converted to analog voice signal, sends through radio-frequency module.
Above-mentioned audio frequency DSP, digital to analog converter, analog to digital converter can be connected by bus.
Fig. 3 is the audio frequency DSP structural representation that the utility model has analog-interphone one embodiment that audio frequency strengthens.In actual applications, alternatively, described audio frequency DSP comprises:
The gain amplification module, the noise reduction module that connect successively;
Wherein, described gain amplification module, the gain for the audio digital signals sent described analog to digital converter is amplified;
Described noise reduction module, for eliminating the background noise in the audio digital signals after gain amplification.
Existing intercom, if in a noisy environment, noise can pass to the reception intercom of opposite end equally.What cause the information under noisy environment to be transmitted is inaccurate, receiving terminal identifying information difficulty.And the utility model is owing to introducing noise suppression function, the signal to noise ratio of the intercom of speaker's end can be improved, the information recognition capability of receiving terminal can be promoted.
Further, described audio frequency DSP, can also comprise:
The digital equalising module connected successively, automatic growth control module and dynamic range control module;
Wherein, the input of described digital equalising module is connected with the output of described noise reduction module;
The output of described digital equalising module is connected with the input of described automatic growth control;
Wherein, described digital equalising module, the audio digital signals for the different frequency interval exported described noise reduction module carries out Amplitude Compensation;
Described automatic growth control module, for automatically adjusting the volume of the audio digital signals that described digital equalising module exports, expands the pickup scope of Mike;
Described dynamic range control module, does dynamic compression for the audio digital signals exported automatic growth control module, to prevent audio digital signals saturated, and the audio digital signals after process is sent to described digital to analog converter.
Owing to introducing equalization algorithm, up tonequality can be improved.
Existing intercom cannot do the Dynamic controlling of audio frequency, may cause pressing close to microphone and speak aloud, there is distorsion, remote spoken sounds is too small, compare existing intercom, the utility model, owing to adding automatic growth control and dynamic gain control, effectively can ensure that the amplitude of audio signal is at reasonable interval, improves the problem of distorsion and remote pickup.
What the present embodiment provided have analog-interphone that audio frequency strengthens, by microphones to analog voice signal be converted to audio digital signals through analog to digital converter, then this audio digital signals sends to digital to analog converter after the upstream tones of audio frequency DSP strengthens process, be converted to analog voice signal, send through radio-frequency module, wherein, strengthen process because audio frequency DSP has carried out upstream tones, therefore improve uplink speech quality, effectively improve Consumer's Experience.
Fig. 4 is the structural representation that the utility model has another embodiment of analog-interphone that audio frequency strengthens.The intercom of the present embodiment is receiving terminal intercom.As shown in Figure 3, the analog-interphone with audio frequency enhancing of the present embodiment, comprising:
Interconnective audio digital signal processor DSP, digital to analog converter, analog to digital converter, radio-frequency module and player;
Wherein, described radio-frequency module, for receiving analog voice signal, and sends to described analog to digital converter after carrying out demodulation to described analog voice signal;
Described analog to digital converter, for being converted to audio digital signals by the analog voice signal after the demodulation received and sending to audio frequency DSP;
Described audio frequency DSP, strengthens process for carrying out downstream tones to described audio digital signals and the audio digital signals after process is sent to described digital to analog converter;
Described digital to analog converter, for being converted to analog voice signal by the described audio digital signals received and sending to described player;
Described player, for playing described analog voice signal.
Specifically, the analog voice signal received is converted to audio digital signals through analog to digital converter by radio-frequency module, then this audio digital signals sends to digital to analog converter after the downstream tones of audio frequency DSP strengthens process, is converted to analog voice signal, sends through player.
Above-mentioned audio frequency DSP, digital to analog converter, analog to digital converter can be connected by bus.
Fig. 5 is the audio frequency DSP structural representation that the utility model has another embodiment of analog-interphone that audio frequency strengthens.In actual applications, alternatively, described audio frequency DSP comprises:
The gain amplification module, the noise reduction module that connect successively;
Wherein, described gain amplification module, the gain for the audio digital signals sent described analog to digital converter is amplified;
Described noise reduction module, for eliminating the background noise in the audio digital signals after gain amplification.
Gain amplification module is for compensating the volume of downlink voice;
Owing to introducing noise suppression function, the signal to noise ratio of the intercom of receiving terminal can be improved, the information recognition capability of receiving terminal can be promoted.
Further, the described audio frequency DSP of the present embodiment, can also comprise:
Connect digital balance module and dynamic range control module successively;
Wherein, the input of described digital equalising module is connected with the output of described noise reduction module;
The output of described digital equalising module is connected with the input of described dynamic range control module;
Wherein, described digital equalising module, the audio digital signals for the different frequency interval exported described noise reduction module carries out Amplitude Compensation;
Described dynamic range control module, does dynamic compression for the audio digital signals exported digital balance module, to prevent audio digital signals saturated, and the audio digital signals after process is sent to described digital to analog converter.
Owing to introducing equalization algorithm, descending tonequality can be improved.
Owing to adding automatic growth control and dynamic gain control, effectively can ensure that the amplitude of audio signal is at reasonable interval, improves the problem of distorsion and remote pickup.
Fig. 6 is the structural representation that the utility model has the another embodiment of analog-interphone that audio frequency strengthens.As shown in Figure 6, in actual applications, described player comprises:
Audio frequency power amplifier and loud speaker.
Specifically, audio frequency power amplifier is audio-frequency power amplifier, and the structure shown in Fig. 6 is the structure be integrated together by the analog-interphone of transmitting terminal and receiving terminal, wherein, also comprises a multiplexer.
What the present embodiment provided have analog-interphone that audio frequency strengthens, the analog voice signal received by radio-frequency module is converted to audio digital signals through analog to digital converter, then this audio digital signals sends to digital to analog converter after the downstream tones of audio frequency DSP strengthens process, be converted to analog voice signal, send through player; Wherein, strengthen process because audio frequency DSP has carried out downstream tones, therefore improve downlink voice quality, effectively improve Consumer's Experience.
Last it is noted that above each embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to foregoing embodiments, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.
Claims (7)
1. there is the analog-interphone that audio frequency strengthens, it is characterized in that, comprising:
Interconnective audio digital signal processor DSP, digital to analog converter, analog to digital converter and radio-frequency module;
Wherein, described analog to digital converter, for being converted to audio digital signals by the analog voice signal received and sending to audio frequency DSP;
Described audio frequency DSP, strengthens process for carrying out upstream tones to described audio digital signals and the audio digital signals after process is sent to described digital to analog converter;
Described digital to analog converter, for being converted to analog voice signal by the described audio digital signals received and sending to described radio-frequency module;
Described radio-frequency module, for sending described analog voice signal.
2. intercom according to claim 1, is characterized in that, described audio frequency DSP comprises:
The gain amplification module, the noise reduction module that connect successively;
Wherein, described gain amplification module, the gain for the audio digital signals sent described analog to digital converter is amplified;
Described noise reduction module, for eliminating the background noise in the audio digital signals after gain amplification.
3. intercom according to claim 2, is characterized in that, described audio frequency DSP, also comprises:
The digital equalising module connected successively, automatic growth control module and dynamic range control module;
Wherein, the input of described digital equalising module is connected with the output of described noise reduction module;
The output of described digital equalising module is connected with the input of described automatic growth control;
Wherein, described digital equalising module, the audio digital signals for the different frequency interval exported described noise reduction module carries out Amplitude Compensation;
Described automatic growth control module, for automatically adjusting the volume of the audio digital signals that described digital equalising module exports, expands the pickup scope of Mike;
Described dynamic range control module, does dynamic compression for the audio digital signals exported automatic growth control module, to prevent audio digital signals saturated, and the audio digital signals after process is sent to described digital to analog converter.
4. there is the analog-interphone that audio frequency strengthens, it is characterized in that, comprising:
Interconnective audio digital signal processor DSP, digital to analog converter, analog to digital converter, radio-frequency module and player;
Wherein, described radio-frequency module, for receiving analog voice signal, and sends to described analog to digital converter after carrying out demodulation to described analog voice signal;
Described analog to digital converter, for being converted to audio digital signals by the analog voice signal after the demodulation received and sending to audio frequency DSP;
Described audio frequency DSP, strengthens process for carrying out downstream tones to described audio digital signals and the audio digital signals after process is sent to described digital to analog converter;
Described digital to analog converter, for being converted to analog voice signal by the described audio digital signals received and sending to described player;
Described player, for playing described analog voice signal.
5. intercom according to claim 4, is characterized in that, described audio frequency DSP comprises:
The gain amplification module connected successively: noise reduction module;
Wherein, described gain amplification module, the gain for the audio digital signals sent described analog to digital converter is amplified;
Described noise reduction module, for eliminating the background noise in the audio digital signals after gain amplification.
6. intercom according to claim 5, is characterized in that, described audio frequency DSP, also comprises:
Connect digital balance module and dynamic range control module successively;
Wherein, the input of described digital equalising module is connected with the output of described noise reduction module;
The output of described digital equalising module is connected with the input of described dynamic range control module;
Wherein, described digital equalising module, the audio digital signals for the different frequency interval exported described noise reduction module carries out Amplitude Compensation;
Described dynamic range control module, does dynamic compression for the audio digital signals exported digital balance module, to prevent audio digital signals saturated, and the audio digital signals after process is sent to described digital to analog converter.
7. the intercom according to any one of claim 4-6, is characterized in that, described player comprises:
Audio frequency power amplifier and loud speaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520872669.XU CN205039809U (en) | 2015-11-04 | 2015-11-04 | Simulation intercom with audio frequency reinforcing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520872669.XU CN205039809U (en) | 2015-11-04 | 2015-11-04 | Simulation intercom with audio frequency reinforcing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205039809U true CN205039809U (en) | 2016-02-17 |
Family
ID=55298676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520872669.XU Active CN205039809U (en) | 2015-11-04 | 2015-11-04 | Simulation intercom with audio frequency reinforcing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205039809U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109348362A (en) * | 2018-08-21 | 2019-02-15 | 恒玄科技（上海）有限公司 | A kind of bottom of eliminating is made an uproar the active noise reduction system and method for interference |
| CN109831220A (en) * | 2017-11-22 | 2019-05-31 | 北京小米移动软件有限公司 | Mobile network's communicating terminal |
| CN111131965A (en) * | 2019-12-26 | 2020-05-08 | 九江慧明电子科技有限公司 | Audio system with protection function and adjusting method thereof |
| CN111163399A (en) * | 2019-12-26 | 2020-05-15 | 九江慧明电子科技有限公司 | Audio system with high sensitivity and adjusting method thereof |
-
2015
- 2015-11-04 CN CN201520872669.XU patent/CN205039809U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109831220A (en) * | 2017-11-22 | 2019-05-31 | 北京小米移动软件有限公司 | Mobile network's communicating terminal |
| CN109348362A (en) * | 2018-08-21 | 2019-02-15 | 恒玄科技（上海）有限公司 | A kind of bottom of eliminating is made an uproar the active noise reduction system and method for interference |
| CN109348362B (en) * | 2018-08-21 | 2021-01-19 | 恒玄科技(上海)股份有限公司 | Active noise reduction system and method for eliminating bottom noise interference |
| CN111131965A (en) * | 2019-12-26 | 2020-05-08 | 九江慧明电子科技有限公司 | Audio system with protection function and adjusting method thereof |
| CN111163399A (en) * | 2019-12-26 | 2020-05-15 | 九江慧明电子科技有限公司 | Audio system with high sensitivity and adjusting method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104602155B (en) | Wireless noise reducing earphone based on intelligent mobile terminal | |
| CN104521247B (en) | Bluetooth headset hearing aid and anti-noise method and apparatus | |
| CN101277331B (en) | Sound reproducing device and sound reproduction method | |
| CN101669284B (en) | Automatic volume and dynamic range adjustment method and device for mobile audio devices | |
| CN205039809U (en) | Simulation intercom with audio frequency reinforcing | |
| CN202889458U (en) | Automatic call volume regulation mobile phone based on environmental noise | |
| CN202602769U (en) | Conversation type electronic product with echo inhibition function | |
| CN103460716A (en) | Integrated psychoacoustic bass enhancement (PBE) for improved audio | |
| CN207340160U (en) | A kind of wireless K songs sound system | |
| CN102711017A (en) | Method, device and system for processing sound | |
| CN106790882A (en) | Communication Dolby circuit and noise-reduction method | |
| CN202587132U (en) | Voice call circuit with echo suppression function and flat panel computer | |
| CN101699831A (en) | Terminal speech transmitting method, system and equipment | |
| CN109658910A (en) | A kind of wireless K song system | |
| CN104581467A (en) | Headset microphone, voice retrieval method applied the same and communication method | |
| CN201345681Y (en) | Terminal with the sound amplifying function | |
| CN207340161U (en) | A kind of K song systems based on Baffle Box of Bluetooth | |
| CN201928424U (en) | Sound source frequency adjusting system and terminal | |
| CN207706422U (en) | Wireless K sings sound system | |
| CN106603855B (en) | Method and system for realizing FM (frequency modulation) music transmission of mobile terminal | |
| KR20110080306A (en) | A mobile device having hearing aid compatibility | |
| CN211578369U (en) | Audio equipment | |
| CN201910841U (en) | Mobile phone microphone system and mobile phone | |
| CN202475559U (en) | Intelligent hand mobile with karaoke function built therein | |
| CN203590427U (en) | Bluetooth acoustic system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |