CN101707725A - Loopback test system and method - Google Patents
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Abstract
The invention discloses loopback test system and method; and the system comprises an acquisition module, an encoding module, a decoding module and a display module. The acquisition module is used for acquiring audio/video signals input by an audio/video device; the encoding module is used for encoding the audio/video signals acquired by the acquisition module in a set encoding format; the decoding module is used for resolving the audio/video signals modulated by the encoding module and outputting the audio/video signals by an audio-video output device; and the display module is used for displaying the audio/video signals resolved by the decoding module. The loopback test system and method can directly preview effect after encoding or decoding and transferring of a server, and can quickly test problems existing in links of acquisition, encoding, decoding and transmitting, thereby realizing the adjustment on audio/video to achieve best effect.
Description
Technical field
The invention belongs to the audio frequency and video technical field, relate to a kind of audio frequency and video test macro, relate in particular to a kind of audio frequency and video loop-back test system; In addition, the invention still further relates to the loop testing method of above-mentioned audio frequency and video loop-back test system.
Background technology
Many times (such as opening video conference) need test the effect of local audio frequency and video through presenting after gathering, encode, transmit, decoding, and adjusts coded system, audio frequency and video parameter then or changes server etc., to reach best effect.
Nowadays, when needs test tone video effect, usually will be with two kinds of methods: 1. the video effect gathered out of Direct observation this locality; 2. use another client to carry out remote adjustment.These two kinds of methods all have its weak point:
Method one can be regulated hardware effects such as aperture, focal length according to effect, but can't preview arrive by the video effect after the encoding and decoding, just can not regulate coding parameter;
Method two can preview to by the video effect after the encoding and decoding, but it is very big influenced by network environment, such as at the beginning even mistake server, image all be can't see like this; And this method needs the people in long-range cooperation, and is very inconvenient.
At the problems referred to above, corresponding solution is not proposed also in the market.
Summary of the invention
Technical problem to be solved by this invention is: a kind of audio frequency and video loop-back test system is provided, can directly arrives by the effect behind encoding and decoding and the transit server in local preview.
Simultaneously, the present invention also provides the loop testing method of above-mentioned audio frequency and video loop-back test system.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of loop-back test system, this system comprises:
Acquisition module is in order to gather the audio/video signal of audio input;
Coding module is connected with described acquisition module, encodes according to the coded format of setting in order to the audio/video signal that acquisition module is collected;
Decoder module is in order to resolve the audio/video signal that described coding module modulates, by audio/video output equipment output audio/video signal;
Present module, in order to present the audio/video signal that decoder module parses.
As a preferred embodiment of the present invention, described system further comprises mixed-media network modules mixed-media, in order to transmission tone/video code flow.
As a preferred embodiment of the present invention, described acquisition module comprises
-audio collection module is in order to gather the audio signal of local audio devices input;
-video acquisition module is in order to gather the vision signal of local video equipment input;
The described module that presents comprises
-audio frequency presents module, in order to present the audio signal that decoder module parses;
-video presents module, in order to present the vision signal that decoder module parses.
A kind of loop testing method, this method comprises the steps:
A, acquisition step are gathered the audio/video signal of audio input by an acquisition module;
B, coding step are encoded the audio/video signal that acquisition module collects by a coding module according to the coded format of setting;
C, decoding step are resolved the audio/video signal that described coding module modulates, by audio/video output equipment output audio/video signal;
D, rendering step present the audio/video signal that decoding step parses;
E, regulating step come determine effect by listening/observation image, and the parameter of collection terminal is regulated.
As a preferred embodiment of the present invention, described method comprises the local audio testing procedure:
A1, gather audio signal by an audio collection module;
B1, by the coding audio signal of a coding module to collecting;
C1, the audio stream after will encoding input to a decoder module, resolve audio stream;
D1, the audio stream after will resolving input to an audio frequency and present module, utilize the audio output apparatus output sound;
E1, come determine effect, the parameter of collection terminal is regulated by listening.
As a preferred embodiment of the present invention, described method comprises the local video testing procedure:
A2, gather vision signal by a video acquisition module;
B2, by the encoding video signal of a coding module to collecting;
C2, the video flowing after will encoding input to a decoder module, resolve video flowing;
D2, the video flowing after will resolving input to a video and present module, utilize the picture output device output image;
E2, come determine effect, the parameter of collection terminal is regulated by observing image.
As a preferred embodiment of the present invention, described method comprises local audio frequency and video testing procedure:
A3, gather vision signal by an audio-video collection module;
B3, the audio-video signal that collects is encoded by a coding module;
C3, the audio/video flow after will encoding input to a decoder module, resolve audio/video flow;
D3, the audio/video flow after will resolving input to audio frequency and video and present module, utilize audio frequency and video output equipment output sound and image;
E3, by listening with observe image and come determine effect, the parameter of collection terminal is regulated.
A kind of loop testing method, this method comprises the steps:
A ', acquisition step are gathered the audio/video signal of audio input by an acquisition module;
B ', coding step are encoded the audio/video signal that acquisition module collects by a coding module according to the coded format of setting;
C ', audio/video stream is sent to transfer server by a mixed-media network modules mixed-media;
D ', receive audio/video stream from transfer server by described mixed-media network modules mixed-media;
E ', decoding step are resolved the audio/video signal that described mixed-media network modules mixed-media receives, by audio/video output equipment output audio/video signal;
F ', rendering step present the audio/video signal that decoding step parses;
G ', regulating step come determine effect by listening/observation image, and the parameter of collection terminal is regulated.
As a preferred embodiment of the present invention, described method comprises the remote audio testing procedure:
A1 ', gather audio signal by an audio collection module;
B1 ', by the coding audio signal of a coding module to collecting;
C1 ', audio stream is sent to transfer server by mixed-media network modules mixed-media;
D1 ', receive audio stream from transfer server by mixed-media network modules mixed-media;
E1 ', the audio stream that mixed-media network modules mixed-media is received input to a decoder module, resolve audio stream;
F1 ', the audio stream after will resolving input to an audio frequency and present module, utilize the audio output apparatus output sound;
G1 ', come determine effect, the parameter of collection terminal is regulated by listening.
As a preferred embodiment of the present invention, described method comprises the long-distance video testing procedure:
A2 ', gather vision signal by a video acquisition module;
B2 ', by the encoding video signal of a coding module to collecting;
C2 ', video flowing is sent to transfer server by mixed-media network modules mixed-media;
D2 ', flow from the transfer server receiver, video by mixed-media network modules mixed-media;
E2 ', the video flowing that mixed-media network modules mixed-media is received input to a decoder module, resolve video flowing;
F2 ', the video flowing after will resolving input to a video and present module, utilize the picture output device output image;
G2 ', come determine effect, the parameter of collection terminal is regulated by observing image.
As a preferred embodiment of the present invention, described method comprises long-range audio frequency and video testing procedure:
A3 ', gather audio-video signal by an audio-video collection module;
B3 ', the audio-video signal that collects is encoded by a coding module;
C3 ', audio/video flow is sent to transfer server by mixed-media network modules mixed-media;
D3 ', receive audio/video flow by mixed-media network modules mixed-media from transfer server again;
E3 ', the audio/video flow that mixed-media network modules mixed-media is received input to a decoder module, resolve audio/video flow;
F3 ', the audio/video flow after will resolving input to audio frequency and video and present module, utilize audio frequency and video output equipment output sound and image;
G3 ', by listening with observe image and come determine effect, the parameter of collection terminal is regulated.
Beneficial effect of the present invention is: audio frequency and video loop-back test system and method that the present invention proposes, can directly arrive by the effect behind encoding and decoding and the transit server in local preview.Can test out the problem that audio/video flow exists rapidly on each links such as collection, encoding and decoding, transmission, thereby in real time audio frequency and video be regulated, reach best effect.
Description of drawings
Fig. 1 is the composition schematic diagram of audio frequency and video loop-back test system among the embodiment one.
Fig. 2 is the flow chart of audio frequency and video loop testing method among the embodiment one.
Fig. 3 is the composition schematic diagram of audio frequency and video loop-back test system among the embodiment two.
Fig. 4 is the flow chart of audio frequency and video loop testing method among the embodiment two.
Embodiment
Describe the preferred embodiments of the present invention in detail below in conjunction with accompanying drawing.
Embodiment one
See also Fig. 1, the present invention has disclosed a kind of loop-back test system, can test out the problem that audio/video flow exists rapidly on each links such as collection, encoding and decoding, transmission, thereby in real time audio frequency and video be regulated.This system comprises continuous successively acquisition module 11, coding module 12, decoder module 13, presents module 14.
The audio/video signal that decoder module 13 modulates in order to resolve described coding module is by audio/video output equipment output audio/video signal.
Present the audio/video signal that module 14 parses in order to present decoder module.In the present embodiment, the described module that presents comprises that audio frequency presents module, video presents module; Audio frequency presents module in order to present the audio signal that decoder module parses; Video presents module in order to present the vision signal that decoder module parses.Certainly, present module and can only present module as required and form, or only present module and form by video by audio frequency.
More than introduced audio frequency and video loop-back test system of the present invention, the present invention has also disclosed the loop testing method of above-mentioned audio frequency and video loop-back test system when disclosing above-mentioned audio frequency and video loop-back test system.See also Fig. 3, this loop testing method comprises the steps:
A, acquisition step are gathered the audio/video signal of audio input by an acquisition module;
B, coding step are encoded the audio/video signal that acquisition module collects by a coding module according to the coded format of setting;
C, decoding step are resolved the audio/video signal that described coding module modulates, by audio/video output equipment output audio/video signal;
D, rendering step present the audio/video signal that decoding step parses;
E, regulating step come determine effect by listening/observation image, and the parameter of collection terminal is regulated.Such as according to the audio/video signal that presents, regulate the audio-video collection equipment of collection terminal, switch coded system, revise internetwork connection mode, revise code stream, frame per second, colourity, saturation or the like parameter.
Further, described method comprises the local audio testing procedure:
A1, gather audio signal by the audio collection module;
B1, by the coding audio signal of coding module to collecting;
C1, the audio stream after will encoding input to decoder module, resolve audio stream;
D1, the audio stream after will resolving input to audio frequency and present module, utilize the audio output apparatus output sound;
E1, come determine effect, the parameter of collection terminal is regulated by listening.
Further, described method comprises the local video testing procedure:
A2, gather vision signal by video acquisition module;
B2, by the encoding video signal of coding module to collecting;
C2, the video flowing after will encoding input to decoder module, resolve video flowing;
D2, the video flowing after will resolving input to video and present module, utilize the picture output device output image;
E2, come determine effect, the parameter of collection terminal is regulated by observing image.
Further, described method comprises local audio frequency and video testing procedure:
A3, gather vision signal by the audio-video collection module;
B3, the audio-video signal that collects is encoded by coding module;
C3, the audio/video flow after will encoding input to decoder module, resolve audio/video flow;
D3, the audio/video flow after will resolving input to audio frequency and video and present module, utilize audio frequency and video output equipment output sound and image;
E3, by listening with observe image and come determine effect, the parameter of collection terminal is regulated.
In sum, audio frequency and video loop-back test system and method that the present invention proposes can directly arrive by the effect behind encoding and decoding and the transit server in local preview.Can test out the problem that audio/video flow exists rapidly on each links such as collection, encoding and decoding, transmission, thereby in real time audio frequency and video be regulated, reach best effect.
Embodiment two
See also Fig. 2, the difference of present embodiment and embodiment one is that in the present embodiment, described system further comprises mixed-media network modules mixed-media 15, this mixed-media network modules mixed-media 15 connects coding module 12, decoder module 13, decodes in order to audio/video code stream to the decoder module 13 of transfer encoding module 12 establishments.
See also Fig. 4, in the present embodiment, the loop testing method of audio frequency and video loop-back test system comprises the steps:
A ', acquisition step are gathered the audio/video signal of audio input by an acquisition module;
B ', coding step are encoded the audio/video signal that acquisition module collects by a coding module according to the coded format of setting;
C ', audio/video stream is sent to transfer server by a mixed-media network modules mixed-media;
D ', receive audio/video stream from transfer server by described mixed-media network modules mixed-media;
E ', decoding step are resolved the audio/video signal that described mixed-media network modules mixed-media receives, by audio/video output equipment output audio/video signal;
F ', rendering step present the audio/video signal that decoding step parses;
G ', regulating step come determine effect by listening/observation image, and the parameter of collection terminal is regulated.
Further, described method comprises the remote audio testing procedure:
A1 ', gather audio signal by an audio collection module;
B1 ', by the coding audio signal of a coding module to collecting;
C1 ', audio stream is sent to transfer server by mixed-media network modules mixed-media;
D1 ', receive audio stream from transfer server by mixed-media network modules mixed-media;
E1 ', the audio stream that mixed-media network modules mixed-media is received input to a decoder module, resolve audio stream;
F1 ', the audio stream after will resolving input to an audio frequency and present module, utilize the audio output apparatus output sound;
G1 ', come determine effect, the parameter of collection terminal is regulated by listening.
Further, described method comprises the long-distance video testing procedure:
A2 ', gather vision signal by a video acquisition module;
B2 ', by the encoding video signal of a coding module to collecting;
C2 ', video flowing is sent to transfer server by mixed-media network modules mixed-media;
D2 ', flow from the transfer server receiver, video by mixed-media network modules mixed-media;
E2 ', the video flowing that mixed-media network modules mixed-media is received input to a decoder module, resolve video flowing;
F2 ', the video flowing after will resolving input to a video and present module, utilize the picture output device output image;
G2 ', come determine effect, the parameter of collection terminal is regulated by observing image.
Further, described method comprises long-range audio frequency and video testing procedure:
A 3 ', gather audio-video signal by an audio-video collection module;
B3 ', the audio-video signal that collects is encoded by a coding module;
C3 ', audio/video flow is sent to transfer server by mixed-media network modules mixed-media;
D3 ', receive audio/video flow by mixed-media network modules mixed-media from transfer server again;
E3 ', the audio/video flow that mixed-media network modules mixed-media is received input to a decoder module, resolve audio/video flow;
F3 ', the audio/video flow after will resolving input to audio frequency and video and present module, utilize audio frequency and video output equipment output sound and image;
G3 ', by listening with observe image and come determine effect, the parameter of collection terminal is regulated.
Embodiment three
See also Fig. 1 to Fig. 4, the present invention proposes a kind of directly in local preview to method by the effect behind encoding and decoding and the transit server, can be easily the selection of coded system, coding parameter and server etc. be regulated.
To achieve these goals, the present invention includes one or more of following several test modes:
(1) local audio test (getting rid of network factors, the testing audio encoding and decoding);
(2) local video test (getting rid of network factors, the test video encoding and decoding);
(3) local audio frequency and video test (getting rid of network factors, the test tone coding and decoding video);
(4) remote audio test (by transit server, the testing audio encoding and decoding);
(5) long-distance video test (by transit server, the test video encoding and decoding);
(6) long-range audio frequency and video tests (by transit server, the test tone coding and decoding video).
Loop-back test system of the present invention comprises that audio collection module, video acquisition module, coding module, decoder module, audio frequency and video present module and mixed-media network modules mixed-media.
The audio collection module is used to gather the audio signal of local audio devices (as: sound card, capture card etc.) input.
Video acquisition module is used to gather the vision signal of local video equipment (as: video camera etc.) input.
Coding module is that the audio-video signal that is used for collecting is encoded according to certain coded format, and the data behind the coding can be used for Network Transmission.
Decoder module is to be used to resolve the audio-video signal that coding module modulates, by audio frequency and video output equipment output audio-video signal.
Audio frequency presents module and is used to present the audio signal that decoder module parses.
Video presents module and is used to present the vision signal that decoder module parses.
Mixed-media network modules mixed-media is used for the transmission tone video code flow.
See also Fig. 3, Fig. 4, the operation principle of above-mentioned several test modes be described respectively below:
1. local audio test (getting rid of network factors, the testing audio encoding and decoding)
1) gathers audio signal by the audio collection module;
2) with the coding audio signal of coding module to collecting;
3) input of the audio stream after will encoding decoder module is resolved audio stream;
4) input of the audio stream after will resolving audio frequency presents module, utilizes audio output apparatus (as: audio amplifier) output sound;
5) user comes determine effect by listening, and is adjusted.
2. local video test (getting rid of network factors, the test video encoding and decoding)
1) gathers vision signal by video acquisition module;
2) with the encoding video signal of coding module to collecting;
3) input of the video flowing after will encoding decoder module is resolved video flowing;
4) the video flowing input video after will resolving presents module, utilizes picture output device (as: display) output image;
5) user comes determine effect by observing image, and is adjusted.
3. local audio frequency and video test (getting rid of network factors, the test tone coding and decoding video)
1) gathers vision signal by sound, video acquisition module;
2) with coding module the audio-video signal that collects is encoded;
3) input of the audio/video flow after will encoding decoder module is resolved audio/video flow;
4) input of the audio/video flow after will resolving sound, video present module, utilize audio frequency and video output equipment (as: audio amplifier and display) output sound and image;
5) user comes determine effect by listening and observation image, and is adjusted.
4. remote audio test (by transit server, the testing audio encoding and decoding)
1) gathers audio signal by the audio collection module;
2) with the coding audio signal of coding module to collecting;
3) by mixed-media network modules mixed-media audio stream is sent to transfer server;
4) receive audio stream by mixed-media network modules mixed-media from transfer server again;
5) the audio stream input decoder module that mixed-media network modules mixed-media is received is resolved audio stream;
6) input of the audio stream after will resolving audio frequency presents module, utilizes audio output apparatus (as: audio amplifier) output sound;
7) user comes determine effect by listening, and is adjusted.
5. long-distance video test (by transit server, the test video encoding and decoding)
1) gathers vision signal by video acquisition module;
2) with the encoding video signal of coding module to collecting;
3) by mixed-media network modules mixed-media video flowing is sent to transfer server;
4) flow from the transfer server receiver, video by mixed-media network modules mixed-media again;
5) the video flowing input decoder module that mixed-media network modules mixed-media is received is resolved video flowing;
6) the video flowing input video after will resolving presents module, utilizes picture output device (as: display) output image;
7) user comes determine effect by observing image, and is adjusted.
6. long-range audio frequency and video tests (by transit server, the test tone coding and decoding video)
1) gathers audio-video signal by sound, video acquisition module;
2) with coding module the audio-video signal that collects is encoded;
3) by mixed-media network modules mixed-media audio/video flow is sent to transfer server;
4) receive audio/video flow by mixed-media network modules mixed-media from transfer server again;
5) the audio/video flow input decoder module that mixed-media network modules mixed-media is received is resolved audio/video flow;
6) input of the audio/video flow after will resolving sound, video present module, utilize audio frequency and video output equipment (as: audio amplifier and display) output sound and image;
7) user comes determine effect by listening and observation image, and is adjusted.
Embodiment four
Parent company requires each 10 of leader of office of the whole nation to participate in video conference.Before meeting was held, certain office used local audio frequency and video loopback test, found to have selected wrong video equipment, caused there is not image.After having selected correct video equipment, image has come out.10 o'clock sharps, meeting begins smoothly.
Embodiment five
Parent company requires each 10 of leader of office of the whole nation to participate in video conference.After meeting begins, find that certain office has only image not have sound.This office is by the local audio loopback test, and it is wrong that discovery is that the audio coding form selects.After having selected correct audio coding form, other participants have heard the sound of this office.
Embodiment six
Parent company requires each 10 of leader of office of the whole nation to participate in video conference.Before meeting was held, certain office used local audio frequency and video loopback test, and all are normal.After meeting began, everybody can't receive the audio frequency and video of this office.This office is after using the long-distance video loopback test, and discovery is that network attribute is provided with mistake.After having reset network attribute, other participants have successfully received the audio frequency and video of this office.
Here description of the invention and application is illustrative, is not to want with scope restriction of the present invention in the above-described embodiments.Here the distortion of disclosed embodiment and change are possible, and the various parts of the replacement of embodiment and equivalence are known for those those of ordinary skill in the art.Those skilled in the art are noted that under the situation that does not break away from spirit of the present invention or substantive characteristics, and the present invention can be with other form, structure, layout, ratio, and realize with other assembly, material and parts.Under the situation that does not break away from the scope of the invention and spirit, can carry out other distortion and change here to disclosed embodiment.
Claims (11)
1. a loop-back test system is characterized in that, this system comprises:
Acquisition module is in order to gather the audio/video signal of audio input;
Coding module is connected with described acquisition module, encodes according to the coded format of setting in order to the audio/video signal that acquisition module is collected;
Decoder module is in order to resolve the audio/video signal that described coding module modulates, by audio/video output equipment output audio/video signal;
Present module, in order to present the audio/video signal that decoder module parses.
2. loop-back test system according to claim 1 is characterized in that:
Described system further comprises mixed-media network modules mixed-media, in order to transmission tone/video code flow.
3. loop-back test system according to claim 1 is characterized in that:
Described acquisition module comprises
-audio collection module is in order to gather the audio signal of local audio devices input;
-video acquisition module is in order to gather the vision signal of local video equipment input;
The described module that presents comprises
-audio frequency presents module, in order to present the audio signal that decoder module parses;
-video presents module, in order to present the vision signal that decoder module parses.
4. a loop testing method is characterized in that, this method comprises the steps:
A, acquisition step are gathered the audio/video signal of audio input by an acquisition module;
B, coding step are encoded the audio/video signal that acquisition module collects by a coding module according to the coded format of setting;
C, decoding step are resolved the audio/video signal that described coding module modulates, by audio/video output equipment output audio/video signal;
D, rendering step present the audio/video signal that decoding step parses;
E, regulating step come determine effect by listening/observation image, and the parameter of collection terminal is regulated.
5. loop testing method according to claim 4 is characterized in that:
Described method comprises the local audio testing procedure:
A1, gather audio signal by an audio collection module;
B1, by the coding audio signal of a coding module to collecting;
C1, the audio stream after will encoding input to a decoder module, resolve audio stream;
D1, the audio stream after will resolving input to an audio frequency and present module, utilize the audio output apparatus output sound;
E1, come determine effect, the parameter of collection terminal is regulated by listening.
6. loop testing method according to claim 4 is characterized in that:
Described method comprises the local video testing procedure:
A2, gather vision signal by a video acquisition module;
B2, by the encoding video signal of a coding module to collecting;
C2, the video flowing after will encoding input to a decoder module, resolve video flowing;
D2, the video flowing after will resolving input to a video and present module, utilize the picture output device output image;
E2, come determine effect, the parameter of collection terminal is regulated by observing image.
7. loop testing method according to claim 4 is characterized in that:
Described method comprises local audio frequency and video testing procedure:
A3, gather vision signal by an audio-video collection module;
B3, the audio-video signal that collects is encoded by a coding module;
C3, the audio/video flow after will encoding input to a decoder module, resolve audio/video flow;
D3, the audio/video flow after will resolving input to audio frequency and video and present module, utilize audio frequency and video output equipment output sound and image;
E3, by listening with observe image and come determine effect, the parameter of collection terminal is regulated.
8. a loop testing method is characterized in that, this method comprises the steps:
A ', acquisition step are gathered the audio/video signal of audio input by an acquisition module;
B ', coding step are encoded the audio/video signal that acquisition module collects by a coding module according to the coded format of setting;
C ', audio/video stream is sent to transfer server by a mixed-media network modules mixed-media;
D ', receive audio/video stream from transfer server by described mixed-media network modules mixed-media;
E ', decoding step are resolved the audio/video signal that described mixed-media network modules mixed-media receives, by audio/video output equipment output audio/video signal;
F ', rendering step present the audio/video signal that decoding step parses;
G ', regulating step come determine effect by listening/observation image, and the parameter of collection terminal is regulated.
9. loop testing method according to claim 8 is characterized in that:
Described method comprises the remote audio testing procedure:
A1 ', gather audio signal by an audio collection module;
B1 ', by the coding audio signal of a coding module to collecting;
C1 ', audio stream is sent to transfer server by mixed-media network modules mixed-media;
D1 ', receive audio stream from transfer server by mixed-media network modules mixed-media;
E1 ', the audio stream that mixed-media network modules mixed-media is received input to a decoder module, resolve audio stream;
F1 ', the audio stream after will resolving input to an audio frequency and present module, utilize the audio output apparatus output sound;
G1 ', come determine effect, the parameter of collection terminal is regulated by listening.
10. loop testing method according to claim 8 is characterized in that:
Described method comprises the long-distance video testing procedure:
A2 ', gather vision signal by a video acquisition module;
B2 ', by the encoding video signal of a coding module to collecting;
C2 ', video flowing is sent to transfer server by mixed-media network modules mixed-media;
D2 ', flow from the transfer server receiver, video by mixed-media network modules mixed-media;
E2 ', the video flowing that mixed-media network modules mixed-media is received input to a decoder module, resolve video flowing;
F2 ', the video flowing after will resolving input to a video and present module, utilize the picture output device output image;
G2 ', come determine effect, the parameter of collection terminal is regulated by observing image.
11. loop testing method according to claim 8 is characterized in that:
Described method comprises long-range audio frequency and video testing procedure:
A3 ', gather audio-video signal by an audio-video collection module;
B3 ', the audio-video signal that collects is encoded by a coding module;
C3 ', audio/video flow is sent to transfer server by mixed-media network modules mixed-media;
D3 ', receive audio/video flow by mixed-media network modules mixed-media from transfer server again;
E3 ', the audio/video flow that mixed-media network modules mixed-media is received input to a decoder module, resolve audio/video flow;
F3 ', the audio/video flow after will resolving input to audio frequency and video and present module, utilize audio frequency and video output equipment output sound and image;
G3 ', by listening with observe image and come determine effect, the parameter of collection terminal is regulated.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102307121A (en) * | 2011-08-25 | 2012-01-04 | 中兴通讯股份有限公司 | Self-checking method and device for multimedia terminal |
| CN103067221A (en) * | 2012-12-24 | 2013-04-24 | 广东威创视讯科技股份有限公司 | Voice-frequency telephony testing system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102307121A (en) * | 2011-08-25 | 2012-01-04 | 中兴通讯股份有限公司 | Self-checking method and device for multimedia terminal |
| CN103067221A (en) * | 2012-12-24 | 2013-04-24 | 广东威创视讯科技股份有限公司 | Voice-frequency telephony testing system |
| CN103067221B (en) * | 2012-12-24 | 2016-08-03 | 广东威创视讯科技股份有限公司 | A kind of voice-frequency telephony test system |
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