CN103198849B - A kind of audio frequency restorative procedure and system thereof of transcribing audio frequency for DAT - Google Patents
A kind of audio frequency restorative procedure and system thereof of transcribing audio frequency for DAT Download PDFInfo
- Publication number
- CN103198849B CN103198849B CN201310053629.8A CN201310053629A CN103198849B CN 103198849 B CN103198849 B CN 103198849B CN 201310053629 A CN201310053629 A CN 201310053629A CN 103198849 B CN103198849 B CN 103198849B
- Authority
- CN
- China
- Prior art keywords
- file
- sample segments
- sample
- master file
- auxiliary
- 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.)
- Expired - Fee Related
Links
Landscapes
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
The invention discloses a kind of audio frequency restorative procedure and system thereof of transcribing audio frequency for DAT.This restorative procedure comprises: with record changer to DAT tape consecutive transcription twice, obtain two and transcribe audio file, using it as master file and auxiliary file, coupling master file and auxiliary file, the disappearance distortion sample segments sample segments matched in auxiliary file of master file is replaced, and the seamless process of usage data is repaired; As repaired successfully, repairing and terminating; As unsuccessful in repaired, use record changer again to transcribe to former DAT tape and obtain new audio file, using new audio file with repair file as new master file and auxiliary file, again repair, till repairing successfully.Audio frequency restorative procedure and system thereof of transcribing audio frequency for DAT of the present invention, when the audio file that DAT transcribes occurs that shortage of data distorts, improves the efficiency that audio frequency is repaired significantly, reduce cost, and the success ratio of its data restore can reach 100%.
Description
Technical field
The present invention relates to a kind of restorative procedure and system thereof of audio frequency, particularly relate to a kind of audio frequency restorative procedure and system thereof of transcribing audio frequency for DAT.
Background technology
Audio DAT is a kind of standard media and technology of the professional quality rank for tape digital recording.Audio DAT equipment is a digital tape transcribing machine, and most Audio DAT record changer can with 44.1 kilo hertzs, the recording of CD audio standard.DAT has become the standard archiving techniques in the specialty and half professional environment grasping recording.
Use Audio DAT record changer by the data transcription on tape for digital audio-frequency data time, due to AudioDAT transcriptional machinery defect inherently, be that transcript data can the random phenomenon such as distortion, loss producing segment.The distortion that these transcript data occur, deficient phenomena are roughly divided into three kinds of situations: 1. the explicit deficient phenomena of data, and namely the sample value of explicit missing data section is 0; 2. the explicit distortion phenomenon of data, to be i.e. close to be 0 to the value of visual inspection disappearance section, but actually detect that the value of disappearance section is very little, and average amplitude is about 10
-5, be seldom 0; 3. data implicit expression distortion phenomenon, namely there is not staccato phenomenon in sample sound, and just sound quality declines, and the oscillogram by sample sound observes out.In these three kinds of deficient phenomenas, explicit disappearance than being easier to identification, after two kinds distortion more complicated, need comprehensively to use could identify and repair by multiple method.The phenomenon of this shortage of data distortion is not the fortuitous phenomena that individual machine occurs, but almost every platform machine Shi Douhui occurs transcribing, the frequency just occurred or the time different.The inevitable shortage of data distortion situation that this transcription occurs has had a strong impact on cultural features and the tonequality feature of the digital audio file of transcribing out.
At present, the distortion deficient phenomena of this voice data can be repaired by manual method, but because DAT has become the archiving techniques of standard, so large batch of audio file needs to repair often, manual method is adopted to repair, repair data volume and huge, cost is very high, and the effect of repairing and success ratio can not ensure.
Summary of the invention
Because the above-mentioned defect of prior art, technical matters to be solved by this invention is to provide a kind of when distortion, loss appear in DAT digitizing unloading data, by technological means, the audio result of transcribing is analyzed, studied, the restorative procedure of reparation and system thereof.
For achieving the above object, the invention provides a kind of audio frequency restorative procedure of transcribing audio frequency for DAT, it is characterized in that, comprising:
Step 100 uses Audio DAT record changer to transcribe DAT tape, obtains first and transcribes audio file;
Step 200 uses described Audio DAT record changer again to transcribe described DAT tape, obtains second and transcribes audio file;
Step 300 is transcribed audio file and described second to described first and is transcribed audio file and do normalized, and using longer for wherein length one as master file, and shorter one of length is as auxiliary file;
Step 400 is by described master file and described auxiliary document alignment;
Described master file is divided into n sample segments by step 500, and give numbering to the sample segments of the described master file after segmentation, obtain sample segments A1, sample segments A2 ..., sample segments An, in described auxiliary file, search and the sample segments of the Waveform Matching of master file sample segments described in each are as the sample segments of described auxiliary file, obtain the sample segments of m described auxiliary file: sample segments B1, sample segments B2 ..., sample segments Bm; Master file sample segments described in each with the matching relationship between paper sample section auxiliary described in each is: described sample segments B1 mates with described sample segments A1, described sample segments B2 mates with described sample segments A2 ..., described sample segments Bm mates with described sample segments Am, described m≤n; Set up the matching list of described matching relationship;
Step 600 analyzes described matching list, finds out the usable samples section in the sample segments of described master file and the sample segments of described auxiliary file, and makes a check mark to usable samples section described in each;
Step 700 is set up and is repaired file, according to described number order, successively the described usable samples section in described master file and described auxiliary file is write described reparation file;
Step 800 judges whether described reparation file is repaired successfully, if repair successfully, then enters step 900; If repair unsuccessful, then described reparation file is transcribed audio file as first, redirect enters step 200;
Step 900 exports described reparation file.
Further, described first audio file is transcribed and described second sample frequency of transcribing audio file is 44.1kHz; Described first transcribes audio frequency and described second length of transcribing audio frequency is all greater than 3 × 2
17.
Further, the described master file of described step 400 and described auxiliary document alignment, comprising: a sample segments is got in 20% position before in described auxiliary file, and the length of described sample segments is 2
17, before described master file 10%-30% scope in search and the start position P of described sample segments
bmthe position P of data of Data Matching
min:
If P
min<0, then failure of aliging; If P
min>P
bm, then the start position P that described master file mates with described auxiliary file is set
ahfor: P
ah=P
min-P
bm, the start position P that described auxiliary file mates with described master file
bhfor the start position P of described auxiliary file
b0;
If P
min<P
bm, then the start position P that described master file mates with described auxiliary file is set
ahfor the start position P of described master file
a0, the start position P that described auxiliary file mates with described master file
bhfor: P
bh=P
bm-P
min;
If P
min=P
bm, then described master file and described auxiliary file align, set the start position P that described master file mates with described auxiliary file
ahfor the start position P of described master file
a0, the start position P that described auxiliary file mates with described master file
bhfor the start position P of described auxiliary file
b0.
Further, be the described start position P from described master file to the segmentation of described master file in described step 500
ahstart, and the length of sample segments after segmentation is all 2
14; The described start position P from described auxiliary file to the search of described auxiliary file
bhstart.
Further, in described step 500 to be corresponding in turn to each data in described master file sample segments with each data in a described auxiliary paper sample section of a described master file sample segments Waveform Matching and equal.
Further, the basis for estimation of the described usable samples section in described step 600 is: the position of sample segments in described master file of described master file is P
a, according to described matching list, obtain its sample segments of coupling in described auxiliary file and the position P of the sample segments of described coupling in described auxiliary file
b,
If P
a=P
b, then described master file sample segments and described auxiliary paper sample section are described available described master file sample segments and described available described auxiliary paper sample section;
If P
a>P
b, then described master file sample segments is described available described master file sample segments, and namely described auxiliary paper sample section has shortage of data distortion phenomenon;
If P
b>P
a, then described auxiliary paper sample section is described available described auxiliary paper sample section, and namely described master file sample segments has shortage of data distortion phenomenon;
In described auxiliary file, if described numbering continuous print two sample segments are usable samples section, then the space Duan Yiwei usable samples section between described numbering continuous print two sample segments.
Further, successively the described usable samples section of described master file and described auxiliary file is write to construct each sample segments Ck of described reparation file in described reparation file in described step 700, wherein k=1,2 ..., n, comprising:
As k=1, the sample segments A1 of described master file is write described reparation file to construct described sample segments C1;
As k>1,
If the sample segments Ak of described master file is available, then the direct available sample segments Ak by described master file writes described reparation file to construct described sample segments Ck;
If the sample segments Ak of described master file is disabled, and tight section between sample segments Bk and sample segments Bk-1 in described auxiliary file, then replace the disabled sample segments Ak of described master file with the available sample segments Bk of described auxiliary file, write described reparation file to construct described sample segments Ck;
If the sample segments Ak of described master file is disabled, and between sample segments Bk in described auxiliary file and sample segments Bk-1, there is space section and this space section is available, then replace the unavailable sample segments Ak of described master file with the usable samples section Bk of described auxiliary file together with this space section, write described reparation file to construct described sample segments Ck;
If the sample segments Ak of described master file is disabled, and the space section had between sample segments Bk in described auxiliary file and sample segments Bk-1 and this space section is unavailable, then replace the unavailable sample segments Ak of described master file with the usable samples section Bk of described auxiliary file, write described reparation file to construct described sample segments Ck.
Present invention also offers a kind of audio frequency repair system of transcribing audio frequency for DAT, apply the above-mentioned restorative procedure of transcribing the voice data of audio frequency for DAT, it is characterized in that, described repair system comprises transcription module and repairs module; Described transcription module comprises Audio DAT record changer, performs described step 100 and described step 200; Described reparation module performs described step 300 to described step 900.
Further, described reparation module is the application program of the C Plus Plus exploitation adopting Windows.NET platform.
In the preferred embodiment, adopt audio frequency restorative procedure of transcribing audio frequency for DAT of the present invention, first, Audio DAT record changer is used to carry out consecutive transcription 2 times to same DAT tape, audio file after transcribing is first transcribe audio file and second and transcribe audio file, transcribing audio file and second to first transcribes after audio file does normalized, two are transcribed length in audio file longer as master file A, the auxiliary file B of shorter conduct.Then, master file A and auxiliary file B is mated: first file A and file B is alignd, again to master file A from reference position, be divided into the sample segments of some equal lengths, and number in order, in auxiliary file B, search for the matched sample section of each sample segments in auxiliary file B of master file A, and set up corresponding matching list.Secondly, analyze this matching list, obtain available master file sample segments, available auxiliary paper sample section and available space section, whether the sample segments namely detecting master file A and auxiliary file B there is shortage of data and distortion phenomenon.Again, set up and repair file, successively file is repaired in the write of the usable samples section of master file and auxiliary file, to construct each sample segments Ck repairing file, wherein k=1,2,3 ..., n: the first direct usable samples section A1 by master file write direct and repair the sample segments C1 of file; Secondly, as k>1, if master file sample segments Ak is available, then direct available master file sample segments Ak is write repair file sample segments to construct described sample segments Ck; If the sample segments Ak of described master file is disabled, and tight section between sample segments Bk and sample segments Bk-1 in auxiliary file, then replace the disabled sample segments Ak of master file with the available sample segments Bk of auxiliary file, write repairs file to construct described sample segments Ck; If the sample segments Ak of master file is disabled, and between sample segments Bk in auxiliary file and sample segments Bk-1, there is space section and this space section is available, then replace the unavailable sample segments Ak of master file together with this space section with the usable samples section Bk of auxiliary file, write repairs file to construct described sample segments Ck; If the sample segments Ak of master file is disabled, and the space section had between sample segments Bk in auxiliary file and sample segments Bk-1 and this space section is unavailable, then replace the unavailable sample segments Ak of master file with the usable samples section Bk of auxiliary file, write repairs file to construct sample segments Ck; And the part of replacing master file A unavailable sample segments write reparation file by the usable samples section of auxiliary file B is normalized, splice point is determined, volume balance process and denoising Processing, i.e. data seamless process.Finally, judge whether repair file repairs successfully: if repair successfully, then directly export and repair file; If repair unsuccessful, then reparation file is transcribed audio file as first, again more former DAT tape is transcribed, obtain new second and transcribe audio file, then re-start reparation by above-mentioned steps, till repairing successfully.This reparation file is exactly use DAT tape to transcribe the file after the restorative procedure reparation of audio frequency for DAT.
Audio frequency restorative procedure and system thereof of transcribing audio frequency for DAT of the present invention, at use Audio DAT record changer to DAT tape consecutive transcription twice, using one as the master file needing to repair, one, as auxiliary file, is carried out replacement to the disappearance distortion sample segments in master file with the sample segments matched in auxiliary file and seamless process is repaired; As repaired successfully, then repair end; As unsuccessful in repaired, then use AudioDAT record changer again to transcribe to former DAT tape and obtain new audio file, using new audio file and repair file as new master file and auxiliary file, re-use new auxiliary file and master file repaired, till repairing successfully.Compare existing artificial restorative procedure, this restorative procedure remediation efficiency is very high, and it can carry out the continuous repair of audio file in enormous quantities; In addition, error detecing capability and the repair ability of this restorative procedure all substantially increase, and therefore its success ratio of repairing missing data can reach 100%.
Be described further below with reference to the technique effect of accompanying drawing to design of the present invention, concrete structure and generation, to understand object of the present invention, characteristic sum effect fully.
Accompanying drawing explanation
Fig. 1 is the main flow figure transcribing the audio frequency restorative procedure of audio frequency for DAT of the present invention;
Fig. 2 is schematic diagram of transcribing an example of the document alignment of the audio frequency restorative procedure of audio frequency for DAT of the present invention;
Fig. 3 is schematic diagram of transcribing another example of the document alignment of the audio frequency restorative procedure of audio frequency for DAT of the present invention;
Fig. 4 is sample segments coupling schematic diagram and available segments mark of transcribing the embodiment of the audio frequency restorative procedure of audio frequency for DAT of the present invention;
Fig. 5 is write schematic diagram of transcribing the reparation file of the embodiment of the audio frequency restorative procedure of audio frequency for DAT of the present invention.
Embodiment
Embodiments of the invention are illustrated below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of main flow of transcribing the audio frequency restorative procedure of audio frequency for DAT of the present invention is:
Step 100, uses Audio DAT record changer by DAT tape transcribing 1 time, obtains first and transcribe audio file; File after transcribing is WAV audio file, and sample frequency is 44.1kHz; And the first length of transcribing audio frequency is greater than 3 × 2
17.
Step 200, uses identical Audio DAT record changer that same DAT tape is transcribed 1 time again, obtains second and transcribe audio file; File after transcribing is WAV audio file, and sample frequency is 44.1kHz; And the second length of transcribing audio frequency is also greater than 3 × 2
17.
Step 300, transcribes audio file and second and transcribes audio file and carry out being separated and normalized by first, namely transcribe first the sampled value that audio file and the second sampled data of transcribing audio file convert-1.0 ~ 1.0 to.Select first to transcribe audio file and second and transcribe the longer file of length in audio file as master file A, another one is as auxiliary file B.
Step 400, alignd by master file A and auxiliary file B, as shown in Figures 2 and 3, wherein A represents master file A, and B represents auxiliary file B.
Before auxiliary file, length is got in 20% position is 2
17sample segments m, the reference position of this sample segments m is P
bm, before master file A 10%-30% scope in, be 2 by length
17, to the position of 30% of master file A the position from 10% of master file A, be 1 adjustment sample position by step-length, choose sample (i.e. data) c successively respectively
1, c
2..., c
ias sample segments c, calculate each the data m in sample segments m respectively
iwith as each sample c in sample segments c
1, c
2..., c
ibetween error using error sum as matching error
Wherein N is the length of sample segments, namely 2
17.The reference position of adjustment sample segments c also calculates its matching error with sample segments m, and the sample segments c that wherein matching error of correspondence is minimum is exactly the matching section of sample segments m in auxiliary file B, and the reference position of matched sample section c is P
min,
If P
min<0, then failure of aliging, jumps into step 800;
If P
min>P
bm, the reference position P that setting master file mates with auxiliary file
ahfor: P
ah=P
min-P
bm, the reference position P that auxiliary file mates with master file
bhbe the reference position P of auxiliary file
b0, as shown in Figure 2;
If P
min<P
bm, then the reference position P that master file mates with auxiliary file is set
ahfor the reference position P of master file
a0, the reference position P that described auxiliary file mates with master file
bhfor: P
bh=P
bm-P
min, as shown in Figure 3;
If P
min=P
bm, then master file and auxiliary file align, the reference position P that setting master file mates with auxiliary file
ahfor the reference position P of master file
a0, the reference position P that auxiliary file mates with master file
bhfor the reference position P of described auxiliary file
b0.
Step 500, the sample segments of coupling master file A and auxiliary file B: from the reference position P of master file A
ahstart (namely from the file header of master file A), carry out equal length segmentation, obtain multiple master file sample segments, the length of each sample segments of master file is all 2
14.Numbering is increased progressively to each master file sample segments, such as A1, A2, A3 ..., An.From the reference position P of auxiliary file B
bh(namely from the file header of auxiliary file B), start to search for the auxiliary paper sample section of mating with each master file sample segments, and to this auxiliary paper sample segment number: B1, B2, B3 ..., Bm.Matching relationship between each master file sample segments with each auxiliary paper sample section is: sample segments B1 mates with sample segments A1, sample segments B2 mates with sample segments A2 ..., sample segments Bm mates with sample segments Am, wherein m≤n; And when the sample segments of auxiliary file mates with the sample segments of master file, each data in master file sample segments with and its auxiliary file mated sample segments in each data to be corresponding in turn to and equal; Matching list is set up according to matching relationship.
Step 600, analyze matching list, find out the usable samples section in the sample segments of master file and the sample segments of auxiliary file, and in matching list, mark is made to usable samples section described in each: specifically as shown in Figure 4, wherein A represents master file A, B represents auxiliary file B, and white box represents that this sample segments is unavailable sample segments, and this sample segments of hypographous box indicating is usable samples section:
According to matching list, for each master file sample segments and the auxiliary paper sample section of mating with it, obtain the position P of this master file sample segments in master file A
a(its starting position is the position of the file header relative to master file A), and the position P of sample segments in auxiliary file B obtaining the auxiliary file mated with master file sample segments
b(its starting position is the position relative to auxiliary file B file header),
If P
a=P
b, the sample segments of this master file and auxiliary file is all available, and namely shortage of data and distortion phenomenon do not appear in the sample segments of master file and auxiliary file, as sample segments A1 and B1, A2 and B2;
If P
a>P
b, the sample segments of this master file is available sample segments, and the sample segments of this auxiliary file is disabled sample segments, and namely the sample segments of auxiliary file has shortage of data and distortion phenomenon;
If P
b>P
a, the sample segments of this master file is disabled sample segments, and the sample segments of this auxiliary file is usable samples section, and namely the sample of master file has shortage of data and distortion phenomenon, as sample segments A3 and B3;
In addition, in auxiliary file B, if numbering continuous print two sample segments are usable samples section, space Duan Yiwei usable samples section then between numbering continuous print two sample segments, as space section section BI3, sample segments B2 and B3 is usable samples section, so space section BI3 is usable samples section.
Step 700, set up and repair file C, according to matching list, by number order 1,2 ..., k ..., n, file C is repaired in the write of usable samples section, process as shown in Figure 5, in Fig. 5, A represents master file A, and B represents that auxiliary file B, C represent and repairs file C, white box represents that this sample segments is unavailable sample segments, and this sample segments of hypographous box indicating is usable samples section:
As k=1, directly the usable samples section A1 of master file is write direct as the sample segments C1 repairing file C and repair file C;
As k>1,
If the sample segments Ak of master file is available, then direct being write direct as the sample segments Ck repairing file C by the usable samples section Ak of master file repairs file C; File C is repaired as usable samples section A2 writes direct as sample C2;
If the sample segments Ak of master file A is disabled, and there is no space section between sample segments Bk in auxiliary file B and sample segments Bk-1, then the usable samples section Bk in auxiliary file B is replaced the unavailable sample segments Ak of master file A, write as the sample segments Ck repairing file C and repair file C, as usable samples section B4 replaces unavailable sample segments A4, write as the sample segments C4 repairing file C and repair file C;
If the sample segments Ak of master file A is disabled, and the space section between sample segments Bk in auxiliary file B and sample segments Bk-1 is available, then the usable samples section Bk in auxiliary file B is replaced together with this available space section the unavailable sample segments Ak of master file A, write as the sample segments Ck repairing file C and repair file C, as space section BI3 replaces unavailable sample segments A3 together with usable samples section B3, write as the sample segments C3 repairing file C and repair file C;
If the sample segments Ak of master file A is disabled, and the space section between sample segments Bk in auxiliary file B and sample segments Bk-1 is disabled, then the usable samples section Bk of auxiliary file B is replaced the unavailable sample segments Ak of master file, write as the sample segments Ck repairing file C and repair file C;
And be normalized the replacement section of repairing in file C, splice point is determined, volume balance process and denoising Processing, i.e. data seamless process.
Step 800, judge whether repair file C repairs successfully, repair and whether successfully judge by manually carrying out examination & verification, the standard judged as: whether there is noise, whether there is audio frequency breakpoint, whether audio frequency after reparation smooth and compare with the audio frequency do not repaired the charm etc. whether retaining original audio frequency;
If repair successfully, if repair successfully, then enter step 900;
If repair unsuccessful, then reparation file C is transcribed audio file as first, rebound step 200, repairs again again, until repair successfully.
Step 900 exports repairs file C.
Present invention also offers a kind of audio frequency repair system of transcribing audio frequency for DAT, this system comprises two parts, and one is comprise Audio DAT record changer to transcribe the transcription module obtaining audio file, and two is the reparation modules of repairing audio file.Wherein, step 100 and step 200 is performed; Repair module and perform step 300 to step 900.In the present embodiment, repair the application program that module is the C Plus Plus exploitation adopting Windows.NET platform, its function comprises: 1. detect audio file data disappearance and abnormal; 2. play the audio fragment from assigned address; 3. repair touch tone file data disappearance and distortion sample, export recovery report; 4. batch repair touch tone file, exports recovery report.
More than describe preferred embodiment of the present invention in detail.Should be appreciated that the ordinary skill of this area just design according to the present invention can make many modifications and variations without the need to creative work.Therefore, all technician in the art, all should by the determined protection domain of claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (7)
1. transcribe an audio frequency restorative procedure for audio frequency for DAT, it is characterized in that, comprising:
Step 100 uses Audio DAT record changer to transcribe DAT tape, obtains first and transcribes audio file;
Step 200 uses described Audio DAT record changer again to transcribe described DAT tape, obtains second and transcribes audio file;
Step 300 is transcribed audio file and described second to described first and is transcribed audio file and do normalized, and using longer for wherein length one as master file, and shorter one of length is as auxiliary file;
Step 400 is by described master file and described auxiliary document alignment; Comprise: a sample segments is got in 20% position before in described auxiliary file, and the length of described sample segments is 2
17, before described master file 10%-30% scope in search and the start position P of described sample segments
bmthe position P of data of Data Matching
min:
If P
min<0, then failure of aliging; If P
min>P
bm, then the start position P that described master file mates with described auxiliary file is set
ahfor: P
ah=P
min-P
bm, the start position P that described auxiliary file mates with described master file
bhfor the start position P of described auxiliary file
b0;
If P
min<P
bm, then the start position P that described master file mates with described auxiliary file is set
ahfor the start position P of described master file
a0, the start position P that described auxiliary file mates with described master file
bhfor: P
bh=P
bm-P
min;
If P
min=P
bm, then described master file and described auxiliary file align, set the start position P that described master file mates with described auxiliary file
ahfor the start position P of described master file
a0, the start position P that described auxiliary file mates with described master file
bhfor the start position P of described auxiliary file
b0;
Described master file is divided into n sample segments by step 500, and give numbering to the sample segments of the described master file after segmentation, obtain sample segments A1, sample segments A2 ..., sample segments An, in described auxiliary file, search and the sample segments of the Waveform Matching of master file sample segments described in each are as the sample segments of described auxiliary file, obtain the sample segments of m described auxiliary file: sample segments B1, sample segments B2 ..., sample segments Bm; Master file sample segments described in each with the matching relationship between paper sample section auxiliary described in each is: described sample segments B1 mates with described sample segments A1, described sample segments B2 mates with described sample segments A2 ..., described sample segments Bm mates with described sample segments Am, described m≤n; To be corresponding in turn to each data in described master file sample segments with each data in a described auxiliary paper sample section of a described master file sample segments Waveform Matching and equal; Set up the matching list of described matching relationship;
Step 600 analyzes described matching list, finds out the usable samples section in the sample segments of described master file and the sample segments of described auxiliary file, and makes a check mark to usable samples section described in each;
Step 700 is set up and is repaired file, according to described number order, successively the described usable samples section in described master file and described auxiliary file is write described reparation file;
Step 800 judges whether described reparation file is repaired successfully, if repair successfully, then enters step 900; If repair unsuccessful, then described reparation file is transcribed audio file as first, redirect enters step 200;
Step 900 exports described reparation file.
2. as claimed in claim 1 audio frequency restorative procedure of transcribing audio frequency for DAT, wherein said first transcribes audio file and described second sample frequency of transcribing audio file is 44.1kHz; Described first transcribes audio frequency and described second length of transcribing audio frequency is all greater than 3 × 2
17.
3. as claimed in claim 1 audio frequency restorative procedure of transcribing audio frequency for DAT is the described start position P from described master file to the segmentation of described master file in wherein said step 500
ahstart, and the length of sample segments after segmentation is all 2
14; The described start position P from described auxiliary file to the search of described auxiliary file
bhstart.
4. audio frequency restorative procedure of transcribing audio frequency for DAT as claimed in claim 1, the basis for estimation of the described usable samples section in wherein said step 600 is: the position of sample segments in described master file of described master file is P
a, according to described matching list, obtain its sample segments of coupling in described auxiliary file and the position P of the sample segments of described coupling in described auxiliary file
b,
If P
a=P
b, then described master file sample segments and described auxiliary paper sample section are described available described master file sample segments and described available described auxiliary paper sample section;
If P
a>P
b, then described master file sample segments is described available described master file sample segments, and namely described auxiliary paper sample section has shortage of data distortion phenomenon;
If P
b>P
a, then described auxiliary paper sample section is described available described auxiliary paper sample section, and namely described master file sample segments has shortage of data distortion phenomenon;
In described auxiliary file, if described numbering continuous print two sample segments are usable samples section, then the space Duan Yiwei usable samples section between described numbering continuous print two sample segments.
5. audio frequency restorative procedure of transcribing audio frequency for DAT as claimed in claim 1, successively the described usable samples section of described master file and described auxiliary file is write in described reparation file to construct each sample segments Ck of described reparation file in wherein said step 700, wherein k=1,2 ..., n, comprising:
As k=1, the sample segments A1 of described master file is write described reparation file to construct described sample segments C1;
As k>1,
If the sample segments Ak of described master file is available, then the direct available sample segments Ak by described master file writes described reparation file to construct described sample segments Ck;
If the sample segments Ak of described master file is disabled, and tight section between sample segments Bk and sample segments Bk-1 in described auxiliary file, then replace the disabled sample segments Ak of described master file with the available sample segments Bk of described auxiliary file, write described reparation file to construct described sample segments Ck;
If the sample segments Ak of described master file is disabled, and between sample segments Bk in described auxiliary file and sample segments Bk-1, there is space section and this space section is available, then replace the unavailable sample segments Ak of described master file with the usable samples section Bk of described auxiliary file together with this space section, write described reparation file to construct described sample segments Ck;
If the sample segments Ak of described master file is disabled, and the space section had between sample segments Bk in described auxiliary file and sample segments Bk-1 and this space section is unavailable, then replace the unavailable sample segments Ak of described master file with the usable samples section Bk of described auxiliary file, write described reparation file to construct described sample segments Ck.
6. transcribe an audio frequency repair system for audio frequency for DAT, application restorative procedure of transcribing the voice data of audio frequency for DAT as claimed in claim 1, it is characterized in that, described repair system comprises transcription module and repairs module; Described transcription module comprises Audio DAT record changer, performs described step 100 and described step 200; Described reparation module performs described step 300 to described step 900.
7. audio frequency repair system of transcribing audio frequency for DAT as claimed in claim 6, wherein said reparation module is the application program of the C Plus Plus exploitation adopting Windows.NET platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310053629.8A CN103198849B (en) | 2013-02-19 | 2013-02-19 | A kind of audio frequency restorative procedure and system thereof of transcribing audio frequency for DAT |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310053629.8A CN103198849B (en) | 2013-02-19 | 2013-02-19 | A kind of audio frequency restorative procedure and system thereof of transcribing audio frequency for DAT |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103198849A CN103198849A (en) | 2013-07-10 |
| CN103198849B true CN103198849B (en) | 2015-08-19 |
Family
ID=48721321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310053629.8A Expired - Fee Related CN103198849B (en) | 2013-02-19 | 2013-02-19 | A kind of audio frequency restorative procedure and system thereof of transcribing audio frequency for DAT |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103198849B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107293312A (en) * | 2017-06-09 | 2017-10-24 | 上海音乐学院 | A kind of transcription restorative procedure of video-tape audio signal |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1149217A (en) * | 1995-07-10 | 1997-05-07 | 索尼公司 | Signal processing device |
| CN1421857A (en) * | 1995-11-30 | 2003-06-04 | 索尼公司 | Digital sound signal processing apparatus and method |
| CN1516169A (en) * | 1999-11-16 | 2004-07-28 | ������������ʽ���� | Copy control method |
| CN1822184A (en) * | 2001-02-16 | 2006-08-23 | 索尼公司 | Recording device and method |
-
2013
- 2013-02-19 CN CN201310053629.8A patent/CN103198849B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1149217A (en) * | 1995-07-10 | 1997-05-07 | 索尼公司 | Signal processing device |
| CN1421857A (en) * | 1995-11-30 | 2003-06-04 | 索尼公司 | Digital sound signal processing apparatus and method |
| CN1516169A (en) * | 1999-11-16 | 2004-07-28 | ������������ʽ���� | Copy control method |
| CN1822184A (en) * | 2001-02-16 | 2006-08-23 | 索尼公司 | Recording device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103198849A (en) | 2013-07-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107798047B (en) | Repeated work order detection method, device, server and medium | |
| CN104182335A (en) | Software testing method and device | |
| CN105244038A (en) | Ore dressing equipment fault abnormity audio analyzing and identifying method based on HMM | |
| CN109190776B (en) | Method and device for rechecking automobile fault, terminal equipment and storage medium | |
| CN109740457B (en) | Face recognition algorithm evaluation method | |
| CN104237713A (en) | Transformer winding deformation diagnostic method based on discrete wavelet transform | |
| WO2020214373A1 (en) | Detection of audio anomalies | |
| CN103198849B (en) | A kind of audio frequency restorative procedure and system thereof of transcribing audio frequency for DAT | |
| CN105513610A (en) | Voice analysis method and device | |
| CN103093782B (en) | A kind of DAT lacks data identification and the replacement method of audio frequency | |
| CN111181574A (en) | End point detection method, device and equipment based on multi-layer feature fusion | |
| US20060190234A1 (en) | Property generating method, verification method and verification apparatus | |
| CN106708736A (en) | Production automation testing method and system for communication equipment | |
| JP2007206069A (en) | Method and device for formatting data automatically based on best matched test result type | |
| CN104572433B (en) | A kind of financial information system method of testing and device | |
| CN110134435A (en) | A kind of code repairs case acquisition methods, device, equipment and storage medium | |
| CN102982827B (en) | Mode matching method of audio data for digital audio tape (DAT) audio repair | |
| JP2016164577A (en) | Apparatus for acquiring data of fast fail memory and method thereof | |
| US20100251192A1 (en) | Circuit description generating apparatus and function verification method | |
| CN103914377A (en) | Interface testing method and device | |
| CN108304330A (en) | Method for extracting content, device and computer equipment | |
| CN107357701A (en) | SAS signal testing methods and device under a kind of distributed scene | |
| CN108763063B (en) | Software defect detection method without defect labeling data | |
| CN109633512B (en) | All-fiber current transformer fault diagnosis method and device | |
| CN106610464A (en) | System and method for judging frequency selection filtering performance of transformer winding deformation tester |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20210219 |