CN101778185A - On-line recording method and device of mobile terminal - Google Patents
On-line recording method and device of mobile terminal Download PDFInfo
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- CN101778185A CN101778185A CN200910045206A CN200910045206A CN101778185A CN 101778185 A CN101778185 A CN 101778185A CN 200910045206 A CN200910045206 A CN 200910045206A CN 200910045206 A CN200910045206 A CN 200910045206A CN 101778185 A CN101778185 A CN 101778185A
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Abstract
The invention relates to an on-line recording method and a device of a mobile terminal. Differing from a traditional recording mode of firstly mixing sounds, then encoding and finally saving as a document, in the method and the device of the invention, uplink speech is directly encoded to obtain a first code stream, the first code stream and a downlink signal channel are decoded to obtain a second code stream, the second code stream is converted into a two-channel format document, wherein each channel corresponds to one code stream, and then the two-channel format document is saved. The mode can avoid using a speech encoder in the recoding process, so the mode is easy to realize, has little resource consumption, can no influence normal connection quality and video quality, is beneficial to balancing the processing capability of a processor and can lower the energy consumption of the terminal.
Description
Technical field
The present invention relates to voice signal and handle, relate in particular to a kind of online way of recording and device of portable terminal.
Background technology
The online recording of voice is meant that portable terminal records the voice of uplink and downlink simultaneously and save as local file in order to playing later in the process of conversation.Because basic identical when plain old telephone and visual telephone to the processing procedure of up-downgoing voice signal, therefore said here " online recording " both comprised " the online recording " when beating plain old telephone, also comprise " online recording " when making visual telephone.
Fig. 1 has described the implementation of the online recording of existing voice.In up link, analog voice becomes digital speech after handling through ADC (analog to digital converter) 102, digital speech strengthens module 104 at voice and sends to speech coder 106 later on the compressed information amount through a series of enhancing processing with the quality that improves voice, encodes after launched by antenna through channel encoder 108 at last; In down link, the digital signal that receives is at first through channel decoder 118 decodings, 116 decodings form linear PCM (pulse code modulation through Voice decoder then, pulse code modulation) signal, the PCM signal strengthens module 114 through voice and carries out the voice enhancement process and pass through DAC (digital to analog converter) 112 later on and play back.Recording is after PCM voice signal before the ascending voice coding and the process of the PCM signal before descending DAC mixer 122 audio mixings, encode through speech coder 124 again, need the canned data amount with minimizing, in memory 126, save as file at last and wait for later broadcast.
This shows that the online recording implementation of traditional voice needs two speech coders, this resource for communication process terminal anxiety is a very big burden.Table 1 provides the occupation condition of an encoding and decoding speech (AMR encoding and decoding) of a typical platform, as can be seen, the resource consumption of speech coder generally is 6 to 7 times of decoder, so Duo resource requirement is a very big burden for terminal, particularly when dialing visual telephone, even may be because normal conversation of inadequate resource influence or video quality.
The AMR resource consumption situation of the existing platform of table 1
| Module | Amount of calculation (MCPS) |
| The AMR encoder | ??14.1 |
| The AMR decoder | ??2.2 |
Summary of the invention
In view of this, technical problem to be solved by this invention provides the online way of recording of portable terminal and the device that a kind of resource is saved.
The present invention solves the problems of the technologies described above the online way of recording that the technical scheme that adopts is a kind of portable terminal of proposition, may further comprise the steps.At first, second code stream that obtains behind first code stream that obtains after the up speech coding and the descending channel-decoding is converted to a pair of channel format file, wherein each sound channel is with wherein a code stream is corresponding.Secondly, preserve described dual track formatted file.
On the other hand, the present invention proposes a kind of online recording device of portable terminal, comprises a performance element and a memory cell.Second code stream that obtains behind first code stream that this performance element obtains after with up speech coding and the descending channel-decoding is converted to a pair of channel format file, and wherein each sound channel is with wherein a code stream is corresponding.This memory cell is in order to preserve described dual track formatted file.
The present invention is owing to adopt above technical scheme, make it compared with prior art, needn't re-use extra speech coder, thereby resource consumption is little, it is simple to realize, can not impact, in addition, also help the disposal ability of Balance Treatment device normal speech quality and video quality, and reduce the terminal energy consumption, thereby more power saving.
Description of drawings
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, below in conjunction with accompanying drawing the specific embodiment of the present invention is elaborated, wherein:
Fig. 1 illustrates traditional online recording device structured flowchart.
Fig. 2 illustrates the online recording device of one embodiment of the invention.
Fig. 3 illustrates the online way of recording flow process of one embodiment of the invention.
Fig. 4 illustrates dual track playing flow according to an embodiment of the invention.
Fig. 5 illustrates monophony playing flow according to an embodiment of the invention.
Embodiment
For foregoing invention purpose, feature, the advantage of the embodiment of the invention can be become apparent, cooperate appended graphicly, be described in detail below:
Please refer to shown in Figure 2ly, Fig. 2 illustrates the online recording device of one embodiment of the invention.With traditional process similarly be, in up link, analog voice is converted to digital speech after handling through ADC (analog to digital converter) 202, digital speech strengthens module 204 at voice and delivers to speech coder 206 later on the compressed information amount through a series of enhancing processing with the quality that improves voice, the speech coder 206 outputs first code stream C1 is at last through launching through antenna after channel encoder 208 codings.In addition, in down link, the digital signal that receives is at first through channel decoder 218 decodings, obtain the second code stream C2,216 decodings form linear PCM (pulse code modulation through Voice decoder then, pulse code modulation) signal, the PCM signal strengthens module 214 through downlink voice and carries out the voice enhancement process and pass through DAC (digital to analog converter) 212 later on and play back.
Continue with reference to shown in Figure 2, online recording device 220 of the present invention comprises a performance element 222 and a memory cell 224.Wherein performance element 222 is connected to the output of above-mentioned speech coder 206 and the output of channel-decoding preceding 218, directly is converted to a pair of channel format file (including but not limited to the DAT file) in order to the second code stream C2 that obtains behind the first code stream C1 that will obtain after the up speech coding and the descending channel-decoding.This dual track form for example comprises L channel and R channel, and wherein each sound channel is with wherein a code stream is corresponding.For instance, the code stream of the L channel corresponding ascending voice of meeting (being the machine main speech), R channel can be play the code stream of downlink voice (being the other side's voice).In one embodiment, performance element 222 can be a hardware circuit, or the program product that moves in a processor, or is solidificated in the firmware in the memory.
In the present invention, need to carry out following transfer process with reference to relevant standard.For example, if the voice coding/decoding adopts the AMR encoding and decoding, need be a dual track file according to the normative translation of RFC3267 standard 5.2 joints so, so that when playing, can restore the voice dialogue situation in the communication process.Certainly, for different code encoding/decoding modes, the standard of its preservation also is different, and those skilled in the art are when the preservation standard that can select adaptation according to code encoding/decoding mode.
Accept above-mentionedly, memory cell 224 is connected to performance element 222, in order to preserve the dual track formatted file, including but not limited to the DAT file.In one embodiment, memory cell 224 can be including but not limited to flash memory (Flash ROM).
On the other hand, embodiments of the invention propose a kind of online way of recording, and its flow process comprises the following steps: with reference to Fig. 2 and shown in Figure 3
Step S1: the second signal bit stream C2 of (after being channel-decoding) before first signal bit stream C1 after the up speech coding and the downlink voice decoding is converted to dual track formatted file DAT;
Step S2: preserve above-mentioned dual track formatted file DAT in memory cell.
The broadcast of above-mentioned dual track formatted file need play back by suitable manner, with the situation of the both sides dialogue of reproduction communication process.Be illustrated for example respectively below.
If portable terminal supports dual track to play, and then can adopt playing flow as shown in Figure 4.At first, read file (step S11), carry out L channel and R channel tone decoding (step S12, S13) respectively, afterwards, carry out DAC conversion (step S14, S15) respectively, play (step S16, S17) by L channel and right channel loudspeaker respectively at last.For instance, L channel can be play ascending voice, and R channel can be play downlink voice.
If portable terminal does not support dual track to play, and then can adopt playing flow as shown in Figure 5.At first, read file (step S21), carry out L channel and R channel tone decoding (step S22, S23) respectively, afterwards, carry out audio mixing (step S24), carry out DAC conversion (step S25) again, carry out monophony at last and play (step S26).At this moment, ascending voice and downlink voice are all by same loudspeaker plays.
In sum, the online recording that the present invention uses needing to avoid two speech coders in communication process, only need adopt the speech code stream of uplink and downlink suitable manner to preserve and get final product.This mode realizes that simply resource consumption is little, can avoid causing inadequate resource and influencing normal conversation in the process of recording, particularly when making visual telephone.The disposal ability that helps the Balance Treatment device, and can reduce the terminal energy consumption and reach the effect of power saving.
Though the present invention discloses as above with preferred embodiment; right its is not in order to qualification the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; when can doing a little modification and perfect, so protection scope of the present invention is when with being as the criterion that claims were defined.
Claims (5)
1. the online way of recording of a portable terminal is characterized in that, may further comprise the steps:
Second code stream that obtains behind first code stream that obtains after the up speech coding and the descending channel-decoding is converted to a pair of channel format file, and wherein each sound channel is with wherein a code stream is corresponding; And
Preserve described dual track formatted file.
2. the online recording device of a portable terminal is characterized in that, comprising:
One performance element is converted to a pair of channel format file with second code stream that obtains behind first code stream that obtains after the up speech coding and the descending channel-decoding, and wherein each sound channel is with wherein a code stream is corresponding; And
One memory cell is in order to preserve described dual track formatted file.
3. online recording device as claimed in claim 2 is characterized in that described performance element is a hardware circuit.
4. online recording device as claimed in claim 2 is characterized in that, described performance element is the program product that moves in a processor.
5. online recording device as claimed in claim 2 is characterized in that, described performance element is the firmware that is solidificated in the memory.
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| CN200910045206A CN101778185A (en) | 2009-01-13 | 2009-01-13 | On-line recording method and device of mobile terminal |
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| CN200910045206A CN101778185A (en) | 2009-01-13 | 2009-01-13 | On-line recording method and device of mobile terminal |
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| CN101778185A true CN101778185A (en) | 2010-07-14 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102348007A (en) * | 2011-09-27 | 2012-02-08 | 宇龙计算机通信科技(深圳)有限公司 | Method and mobile terminal of realizing bidirectional call recording in packet switched domain |
| CN103338293A (en) * | 2013-05-09 | 2013-10-02 | 毛秀允 | Binaural recording device based on intelligent recording telephone, and recording method thereof |
| CN104143325A (en) * | 2014-07-18 | 2014-11-12 | 腾讯科技（深圳）有限公司 | Method and system for switching accompaniment/original audio data |
| CN106412767A (en) * | 2016-11-29 | 2017-02-15 | 维沃移动通信有限公司 | Sound mixing method and sound mixing circuit |
| CN113556421A (en) * | 2020-04-24 | 2021-10-26 | 成都鼎桥通信技术有限公司 | Recording data processing method, recording data processing device and storage medium |
-
2009
- 2009-01-13 CN CN200910045206A patent/CN101778185A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102348007A (en) * | 2011-09-27 | 2012-02-08 | 宇龙计算机通信科技(深圳)有限公司 | Method and mobile terminal of realizing bidirectional call recording in packet switched domain |
| CN102348007B (en) * | 2011-09-27 | 2013-12-11 | 宇龙计算机通信科技(深圳)有限公司 | Method and mobile terminal of realizing bidirectional call recording in packet switched domain |
| CN103338293A (en) * | 2013-05-09 | 2013-10-02 | 毛秀允 | Binaural recording device based on intelligent recording telephone, and recording method thereof |
| CN103338293B (en) * | 2013-05-09 | 2015-09-16 | 毛秀允 | Based on binaural recording equipment and the way of recording thereof of intelligent telegraphone |
| CN104143325A (en) * | 2014-07-18 | 2014-11-12 | 腾讯科技（深圳）有限公司 | Method and system for switching accompaniment/original audio data |
| CN106412767A (en) * | 2016-11-29 | 2017-02-15 | 维沃移动通信有限公司 | Sound mixing method and sound mixing circuit |
| CN106412767B (en) * | 2016-11-29 | 2020-03-31 | 维沃移动通信有限公司 | Sound mixing method and sound mixing circuit |
| CN113556421A (en) * | 2020-04-24 | 2021-10-26 | 成都鼎桥通信技术有限公司 | Recording data processing method, recording data processing device and storage medium |
| CN113556421B (en) * | 2020-04-24 | 2023-01-24 | 成都鼎桥通信技术有限公司 | Recording data processing method, recording data processing device and storage medium |
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Open date: 20100714 |