WO2016150274A1

WO2016150274A1 - Song splicing algorithm and apparatus

Info

Publication number: WO2016150274A1
Application number: PCT/CN2016/074910
Authority: WO
Inventors: 程胜
Original assignee: 广东欧珀移动通信有限公司
Priority date: 2015-03-20
Filing date: 2016-02-29
Publication date: 2016-09-29
Also published as: CN104778217B; CN104778217A

Abstract

A song splicing algorithm, comprising: acquiring N song audio frequency files (S101), N being an integer greater than or equal to 1; according to a preset order, splicing the N song audio frequency files in order to obtain a spliced song audio frequency file (S102). Also provided is a song splicing apparatus. A decoding operation can be performed on song audio frequency files to acquire decoded audio frequency data, and said decoded audio frequency data is spliced to obtain a spliced song audio frequency file.

Description

Song stitching algorithm and device

Technical field

The embodiments of the present invention relate to the field of audio processing technologies, and in particular, to a song splicing algorithm and apparatus.

Background technique

With the rapid development of mobile Internet technology, the pursuit of music by song splicing devices (such as mobile phones, tablets, touch) and dedicated players has become more and more popular. At present, the function playback of music in the prior art is limited to improving its own sound quality processing, such as processing the inferior audio file by the processing software provided in the device or the dedicated player to improve the playback quality; or, The quality of the audio file itself is relatively high, and often the genuine audio file can broadcast a good effect, while the local processing of the audio file, such as cutting technology and extraction technology, is less studied.

In the prior art, the cutting of songs mainly relies on network software, and these softwares often require manual manual operations, and cannot accurately locate the exact position of each lyric.

Summary of the invention

The embodiment of the invention provides a song splicing algorithm and device, which can perform decoding operations on song audio files and splicing the decoded data, and has high splicing efficiency.

A first aspect of the embodiments of the present invention provides a song splicing algorithm, including:

Obtaining N song audio files, where N is an integer greater than or equal to 1;

The N song audio files are stitched in a preset order to obtain a stitched song audio file.

A second aspect of the embodiments of the present invention provides a song splicing apparatus, including:

An acquiring unit, configured to acquire N song audio files, where N is greater than or equal to 1

number;

a splicing unit, configured to splicing the N song audio files in a preset order to obtain a spliced song audio file.

The embodiment of the present invention obtains N song audio files, where N is an integer greater than or equal to 1; The N song audio files are stitched in a preset order to obtain a stitched song audio file. The decoding operation of the song audio file can be performed by using the embodiment of the present invention to obtain decoded audio data, and the decoded audio data is spliced to obtain a spliced song audio file.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

FIG. 1 is a schematic flowchart diagram of a first embodiment of a song splicing algorithm according to an embodiment of the present disclosure;

FIG. 2 is a schematic flowchart diagram of a second embodiment of a song splicing algorithm according to an embodiment of the present disclosure;

FIG. 3 is a schematic flowchart diagram of a third embodiment of a song splicing algorithm according to an embodiment of the present disclosure;

FIG. 4 is a schematic flowchart diagram of a fourth embodiment of a song splicing algorithm according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a first embodiment of a song splicing apparatus according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of a second embodiment of a song splicing apparatus according to an embodiment of the present disclosure;

FIG. 7 is a schematic structural diagram of a third embodiment of a song splicing apparatus according to an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of a fourth embodiment of a song splicing apparatus according to an embodiment of the present disclosure;

FIG. 9 is a schematic structural diagram of a fifth embodiment of a song splicing apparatus according to an embodiment of the present disclosure;

FIG. 10 is a schematic structural diagram of a sixth embodiment of a song splicing apparatus according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. . All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without departing from the inventive scope are the scope of the embodiments of the present invention.

In an implementation, in the embodiment of the present invention, the device may include, but is not limited to, a notebook computer, a mobile phone, a tablet computer, a smart wearable device, a player, an MP3, an MP4, a smart TV, a set top box, and a service. And so on. The system of the song splicing device refers to the operating system of the song splicing device, and may include, but is not limited to, an Android system, a Symbian system, a Windows system, an IOS (Mobile Operating System developed by Apple) system, and the like. It should be noted that the Android device refers to the device of the Android system, the Saipan device refers to the device of the Saipan system, and the like. The above apparatus is by way of example only and not limitation, and is not limited to the above apparatus.

In the implementation, in the embodiment of the present invention, the songs may include, but are not limited to, Chinese songs, English songs, Russian songs, Spanish songs, classical songs, pop music songs, rock music songs, light music songs, rap songs, songs, songs, videos. The songs and so on. The above songs are by way of example only and not exhaustive, including but not limited to the above-mentioned songs.

In the implementation process, the format of the song may include, but is not limited to, MP3, MP4, WMV, WAV, FLV, and the like. The format of the above songs is merely an example, not an exhaustive one, including but not limited to the format of the above songs.

A song stitching algorithm and apparatus according to an embodiment of the present invention will be described with reference to FIG. 1 to FIG.

Referring to FIG. 1, FIG. 1 is a schematic flowchart diagram of a first embodiment of a song splicing algorithm according to an embodiment of the present invention. The method for stitching a song according to the embodiment includes the following steps:

S101. Acquire N song audio files, where N is an integer greater than or equal to 1.

Specifically, N song audio files are acquired, N song audio files can be read by a program, or N song audio files can be set by a system.

As a possible implementation manner, the song audio file may include, but is not limited to, an MP3 song audio file, a WAV song audio file, a WMV song audio file, and a CD song audio file.

S102. Splicing the N song audio files in a preset order to obtain a stitched song audio file.

Specifically, the N song audio files are stitched in a preset order to obtain a stitched song audio file. The preset order may be chronological or used for the splicing order defined by itself.

In the embodiment of the present invention, N song audio files are obtained, where N is an integer greater than or equal to 1; the N song audio files are spliced in a preset order to obtain a stitched song audio file. The decoding operation of the song audio file can be performed by using the embodiment of the present invention to obtain decoded audio data, and the decoded audio data is spliced to obtain a spliced song audio file.

Referring to FIG. 2, FIG. 2 is a schematic flowchart diagram of a second embodiment of a song splicing algorithm according to an embodiment of the present invention, and FIG. 2 is a specific refinement of step S102 in FIG. The song stitching algorithm described in this embodiment includes the following steps:

S201. Acquire a starting position of the N song audio files.

Specifically, the start position of the N song audio files is acquired, and the N song audio files can be analyzed, the position where the first clip appears is defined as the start position of the song audio file, or N song audio is The header file of the file is defined as the starting position of the song audio file.

S202. Perform a decoding operation on the N song audio files according to a starting position of the N song audio files to obtain decoded audio data.

Specifically, the N song audio files are subjected to a decoding operation according to the start position of the N song audio files to obtain decoded audio data. Wherein, the N song audio files are decoded according to the starting position of the N song audio files, and the decoded audio data is decoded, and the song can be divided into segments of one sentence based on the decoded audio data.

S203. Send the decoded audio data to a buffer queue.

Specifically, the decoded audio data is sent to the buffer queue, and the decoded audio data can be sent to the buffer queue according to the chronological order of decoding.

S204. The decoded audio data in the buffer queue is spliced in a preset order to obtain a spliced song audio file.

Specifically, the decoded audio data in the buffer queue is spliced in a preset order to obtain a spliced song audio file. The preset order may include, but is not limited to, chronological order, random order, order set by the user, and the like.

As a possible implementation manner, before the acquiring the N song audio files, the control decoding parameters of the decoding operation may be set. The decoding parameters may include, but are not limited to, a decoding type, a decoding speed, a decoding manner, and the like.

As a possible implementation manner, taking the analysis of two song audio files as an example, if a DSP decoder is used, the DSP decoding parameters can be set, the background thread finds the starting position of the original audio data in the file, and the DSP starts decoding. The background thread will decode the audio data to send the audio data to the buffer queue, and then send it out from the buffer queue to the DSP to decode the output sound. When the audio number of the first song audio file According to all reading into the cache queue, the starting position of the audio data of the second song audio file is found. The audio data of the position is directly sent to the buffer buffer (bucket) after the audio data (end frame frame) of the previous song audio file, and the data in the buffer is sequentially sent to the DSP for decoding, so that two songs can be guaranteed. The audio data is sequentially decoded into the DSP. Normally, the speed of reading a USB device is faster than the speed of decoding playback. However, when the first song has 20 seconds of data to be decoded, the audio data of the first song is already buffered. Parsing the second song and starting to buffer the second data audio data, completely continuous decoding for the user.

Obtaining a starting position of the N song audio files according to an embodiment of the present invention; performing decoding operations on the N song audio files according to a starting position of the N song audio files to obtain decoded audio data; The audio data is sent to the buffer queue; the decoded audio data in the buffer queue is spliced in a preset order to obtain a stitched song audio file. The decoding operation of the song audio file can be performed by using the embodiment of the present invention to obtain decoded audio data, and the decoded audio data is spliced to obtain a spliced song audio file.

Referring to FIG. 3, FIG. 3 is a schematic flowchart diagram of a third embodiment of a song splicing algorithm according to an embodiment of the present invention, and FIG. 3 is a specific refinement of step S202 in FIG.

S301. Select a decoder corresponding to the N song audio files.

Specifically, a decoder corresponding to the N song audio files is selected, wherein the corresponding decoder can be selected according to the format of the N song audio files.

S302. Control the decoder to perform a decoding operation on the N song audio files to obtain decoded audio data.

Specifically, the control decoder performs a decoding operation on the N song audio files to obtain decoded audio data. The control decoder performs a decoding operation on the N song audio files, and the obtained decoded audio data may be sentence segment data.

The embodiment of the present invention selects a decoder corresponding to the N song audio files; and controls the decoder to perform a decoding operation on the N song audio files to obtain decoded audio data. The decoding operation of the song audio file can be performed by using the embodiment of the present invention to obtain decoded audio data.

Referring to FIG. 4, FIG. 4 is a fourth embodiment of a song stitching algorithm according to an embodiment of the present invention. Process diagram, including steps:

S401. Acquire N song audio files, where N is an integer greater than or equal to 1.

S402. Splicing the N song audio files in a preset order to obtain a stitched song audio file.

S403. Lock a stitching position of the stitched song.

Specifically, the stitching position of the stitched song audio file is locked. In order to achieve seamless splicing, the splicing marks cannot be displayed, and the splicing position needs to be locked and pre-processed.

S404. Process the stitching position of the stitched song audio file to obtain a seamless stitching song audio file.

Specifically, the stitching position of the stitched song is processed to obtain a seamless stitching song audio file. The processing may include, but is not limited to, performing tune adjustment on the stitching position of the stitched song, inserting a tunes with similar degrees of change, and smoothing the stitching position with a large change range.

The embodiment of the invention locks the splicing position of the spliced song; and processes the splicing position of the spliced song to obtain a seamless spliced song audio file. The stitched song audio file can be processed by using the embodiment of the invention to obtain a seamless stitching song audio file.

Referring to FIG. 5, FIG. 5 is a schematic structural diagram of a first embodiment of a song splicing apparatus according to an embodiment of the present invention. The song splicing apparatus shown in FIG. 5 may include an obtaining unit 501 and a splicing unit 502.

The obtaining unit 501 is configured to acquire N song audio files, where N is an integer greater than or equal to 1.

Specifically, the obtaining unit 501 acquires N song audio files, can read N song audio files by a program, or can set N song audio files through a system.

The splicing unit 502 is configured to splicing the N song audio files in a preset order to obtain a spliced song audio file.

Specifically, the splicing unit 502 splices the N song audio files in a preset order to obtain a spliced song audio file. The preset order may be chronological or used for the splicing order defined by itself.

In the embodiment of the present invention, the obtaining unit 501 acquires N song audio files, where N is an integer greater than or equal to 1; the splicing unit 502 splices the N song audio files in a preset order to obtain a spliced song audio file. The decoding operation of the song audio file can be performed by using the embodiment of the present invention to obtain decoded audio data, and the decoded audio data is spliced to obtain a spliced song audio file.

Referring to FIG. 6 , FIG. 6 is a schematic structural diagram of a second embodiment of a song splicing apparatus according to an embodiment of the present invention. The splicing unit 502 in the song splicing apparatus shown in FIG. 5 may include: a determining unit 601, The decoding unit 602, the sending unit 603, and the splicing subunit 604 are as follows:

The determining unit 601 acquires a starting position of the N song audio files.

Specifically, the determining unit 601 obtains a starting position of the audio file of the song to be spliced, and analyzes the N song audio files, and defines a position where the first fragment appears as a starting position of the song audio file, or The header file of the N song audio files is defined as the starting position of the N song audio files.

The decoding unit 602 is configured to perform a decoding operation on the N song audio files according to a starting position of the N song audio files to obtain decoded audio data.

Specifically, the decoding unit 602 performs a decoding operation on the N song audio files according to the start position of the N song audio files to obtain decoded audio data. Wherein, the N song audio files are decoded according to the starting position of the N song audio files, and the decoded audio data is decoded, and the song can be divided into sentence sentences by one sentence based on the decoded audio data.

The sending unit 603 is configured to send the decoded audio data to a buffer queue.

Specifically, the sending unit 603 sends the decoded audio data to the buffer queue, and the decoded audio data may be sent to the buffer queue in the chronological order of decoding.

The splicing sub-unit 604 is configured to splicing the decoded audio data in the buffer queue in a preset order to obtain a spliced song.

Specifically, the splicing sub-unit 604 splices the decoded audio data in the buffer queue in a preset order to obtain a spliced song audio file. The preset order may include, but is not limited to, chronological order, random order, order set by the user, and the like.

As shown in FIG. 7, FIG. 7 is a schematic structural diagram of a third embodiment of a song splicing apparatus according to an embodiment of the present invention. Compared with the song splicing apparatus shown in FIG. 5, FIG. The illustrated song splicing apparatus may further include a setting unit 503 in addition to the unit of the song splicing apparatus shown in FIG. 5.

The setting unit 503 is configured to set a control decoding parameter of the decoding operation before the acquiring unit 501 acquires the N song audio files.

In this embodiment of the present invention, control decoding parameters may be set, where the decoding parameters may include, but are not limited to, a decoding type, a decoding speed, a decoding manner, and the like.

As a possible implementation manner, taking the analysis of two songs as an example, if a DSP decoder is used, the DSP decoding parameters can be set, the background thread finds the starting position of the original audio data in the file, and the DSP starts decoding, the background thread. The decoded audio data is sent to the buffer queue, and then sent out from the buffer queue to the DSP to decode the output sound. When the audio data of the first song is all read into the buffer queue, the starting position of the audio data of the second song is found. The audio data of the position is directly sent to the buffer buffer (buffer) after the audio data (the end frame frame) of the previous song, and the data in the buffer is sequentially sent to the DSP for decoding, so that the audio of the two songs can be guaranteed. The data is serially entered into the DSP for decoding. Normally, the speed of reading a USB device is faster than the speed of decoding playback. However, when the first song has 20 seconds of data to be decoded, the audio data of the first song is already buffered. Parse the second song and start the second data audio Data caching, completely continuous decoding for the user.

The setting unit 503 is configured to: before the acquiring unit 501 acquires the N song audio files, set a control decoding parameter of the decoding operation; the acquiring unit 501 acquires N song audio files, where N is greater than Or an integer equal to 1; the splicing unit 502 splices the N song audio files in a preset order to obtain a spliced song audio file. The decoding operation of the song audio file can be performed by using the embodiment of the present invention to obtain decoded audio data, and the decoded audio data is spliced to obtain a spliced song audio file.

Please refer to FIG. 8. FIG. 8 is a schematic structural diagram of a fourth embodiment of a song splicing apparatus according to an embodiment of the present invention. Compared with the song splicing apparatus shown in FIG. 6, the song splicing apparatus shown in FIG. The decoding unit 602 of the song splicing device shown in FIG. 8 may further include a selecting unit 801 and a control unit 802, as follows:

The selecting unit 801 is configured to select a decoder corresponding to the N song audio files.

Specifically, the selection unit 801 selects a decoder corresponding to the N song audio files, wherein the corresponding decoder can be selected according to the format of the N song audio files.

The control unit 802 is configured to control the decoder to perform a decoding operation on the N song audio files to obtain decoded audio data.

Specifically, the control unit 803 controls the decoder to perform a decoding operation on the N song audio files to obtain decoded audio data. The control decoder performs a decoding operation on the N song audio files to obtain decoded audio data as a sentence segment.

In the embodiment of the present invention, the selecting unit 801 selects a decoder corresponding to the N song audio files; the control unit 802 controls the decoder to perform a decoding operation on the N song audio files to obtain decoded audio data. The decoding operation of the song audio file can be performed by using the embodiment of the present invention to obtain decoded audio data.

Please refer to FIG. 9. FIG. 9 is a schematic structural diagram of a fifth embodiment of a song splicing apparatus according to an embodiment of the present invention. Compared with the song splicing apparatus shown in FIG. 5, the song splicing apparatus shown in FIG. The unit of the song splicing device shown in FIG. 5 may further include a locking unit 503 and a processing unit 504, as follows:

The locking unit 503 is configured to lock a splicing position of the spliced song audio file.

Specifically, the locking unit 503 locks the stitching position of the stitched song audio file. In order to achieve seamless splicing, the splicing marks cannot be displayed, and the splicing position needs to be locked and processed.

The processing unit 504 is configured to process the stitching position of the stitched song audio file to obtain a seamless stitching song audio file.

Specifically, the processing unit 504 processes the stitching position of the stitched song to obtain a seamless stitching song audio file. The processing may include, but is not limited to, performing tune adjustment on the stitching position of the stitched song audio file, inserting a tunes with similar degrees of change, and smoothing the stitching position with a large change range.

In the embodiment of the present invention, the locking unit 503 locks the splicing position of the song audio file; the processing unit 504 processes the splicing position of the spliced song audio file to obtain a seamless spliced song audio file. The song audio file can be processed by using the embodiment of the invention to obtain a seamlessly stitched song audio file.

Referring to FIG. 10, FIG. 10 is a schematic structural diagram of a sixth embodiment of a song splicing apparatus according to an embodiment of the present invention. The song splicing apparatus described in this embodiment includes: at least one input device 1000; at least one output device 2000; at least one processor 3000, such as a CPU; and a memory 4000, the input device 1000, the output device 2000, the processor 3000, and The memory 4000 is connected by a bus 5000.

The input device 1000 can be a touch panel, a general PC, a liquid crystal screen, a touch screen, or the like.

The above memory 4000 may be a high speed RAM memory or a non-volatile memory such as a disk memory. The above memory 4000 is used to store a set of program codes, and the input device 1000, the output device 2000, and the processor 3000 are used to call the program code stored in the memory 4000, and perform the following operations:

The processor 3000 is configured to acquire N song audio files, where N is an integer greater than or equal to 1;

As a possible implementation manner, the song audio file includes at least one of the following song audio files:

MP3 song audio files, WAV song audio files, WMV song audio files and CD songs Music file.

The processor 3000 is further configured to:

Splicing the N song audio files in a preset order to obtain a stitched song audio file;

The above processor 3000 is also used to:

The control decoding parameters of the decoding operation are set.

The above processor 3000 is also used to:

Locking the stitching position of the stitched song audio file;

The above processor 3000 is also used to:

The stitching position of the stitched song audio file is processed to obtain a seamless stitching song.

As a possible implementation manner, the foregoing processor 3000 is further configured to:

Obtaining a starting position of the N song audio files;

Decoding the N song audio files according to a starting position of the N song audio files to obtain decoded audio data;

Sending the decoded audio data to a cache queue;

The decoded audio data in the buffer queue is spliced in a preset order to obtain a spliced song audio file.

In some possible implementations, the processor 3000 is further configured to:

Selecting a decoder corresponding to the N song audio files;

The decoder is controlled to perform a decoding operation on the N song audio files to obtain decoded audio data.

In an implementation, the input device 1000, the output device 2000, and the processor 3000 described in the embodiments of the present invention may implement the song splicing device provided by the embodiment of the present invention, and implement the song splicing algorithm implementation manner as described in FIG. 1 to FIG. The implementation of the song splicing device described in FIG. 5 to FIG. 9 provided by the embodiment of the present invention may also be implemented, and details are not described herein again.

The modules or sub-modules in all the embodiments of the present invention may be implemented by a general-purpose integrated circuit, such as a CPU (Central Processing Unit), or an ASIC (Application Specific Integrated Circuit).

The steps in the method of the embodiment of the present invention may be sequentially adjusted, merged, and deleted according to actual needs. Less.

The units in the song splicing device of the embodiment of the present invention can be combined, divided, and deleted according to actual needs.

One of ordinary skill in the art can understand that all or part of the process of implementing the foregoing embodiments can be completed by a computer program to instruct related hardware, and the program can be stored in a computer readable storage medium. When executed, the flow of an embodiment of the methods as described above may be included. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto. Therefore, the equivalent changes according to the embodiments of the present invention are still in the embodiment of the present invention. The scope covered.

Claims

A song stitching algorithm, comprising:

Obtaining N song audio files, where N is an integer greater than or equal to 1;

The N song audio files are stitched in a preset order to obtain a stitched song audio file.
The method of claim 1, wherein the splicing the N song audio files in a preset order to obtain a stitched song audio file comprises:

Obtaining a starting position of the N song audio files;

Decoding the N song audio files according to a starting position of the N song audio files to obtain decoded audio data;

Sending the decoded audio data to a cache queue;

The decoded audio data in the buffer queue is spliced in a preset order to obtain a spliced song audio file.
A method according to any one of claims 1 or 2, wherein

Before the acquiring the N song audio files, the method includes: setting a control decoding parameter of the decoding operation.
The method of any of claims 1 or 2, wherein the N song audio files comprise at least one of the following song audio files:

MP3 song audio files, WAV song audio files, WMV song audio files, and CD song audio files.
The method according to any one of claims 1 or 2, wherein the decoding operation of the N song audio files is performed according to a starting position of the N song audio files to obtain decoded audio data, include:

Selecting a decoder corresponding to the N song audio files;

The decoder is controlled to perform a decoding operation on the N song audio files to obtain decoded audio data.
The method according to any one of claims 1 to 2, wherein after the splicing the N song audio files in a preset order to obtain a spliced song audio file, the method further comprises:

Locking the stitching position of the stitched song audio file;

The stitching position of the stitched song audio file is processed to obtain a seamless stitching song audio file.
A song splicing device, comprising:

An acquiring unit, configured to acquire N song audio files, where N is greater than or equal to 1

number;

a splicing unit, configured to splicing the N song audio files in a preset order to obtain a spliced song audio file.
The apparatus according to claim 7, wherein said splicing unit comprises:

a determining unit, configured to acquire a starting position of the N song audio files;

a decoding unit, configured to perform a decoding operation on the N song audio files according to a starting position of the N song audio files to obtain decoded audio data;

a sending unit, configured to send the decoded audio data to a buffer queue;

And a splicing subunit, configured to splicing the decoded audio data in the buffer queue in a preset order to obtain a spliced song audio file.
The device according to any one of claims 7 or 8, wherein the device further comprises:

A setting unit for setting control decoding parameters.
The song splicing apparatus according to any one of claims 7 or 8, wherein the song audio file comprises at least one of the following song audio files:

MP3 song audio files, WAV song audio files, WMV song audio files, and CD song audio files.
The apparatus according to any one of claims 7 or 8, wherein the decoding unit comprises:

a selecting unit, configured to select a decoder corresponding to the N song audio files;

And a control unit, configured to control the decoder to perform a decoding operation on the N song audio files to obtain decoded audio data.
The device according to any one of claims 7 or 8, wherein the device further comprises:

a locking unit, configured to lock a stitching position of the stitched song audio file;

And a processing unit, configured to process the stitching position of the stitched song audio file to obtain a seamless stitching song.
A song splicing device, comprising:

a processor and a memory; wherein the processor performs the following steps by calling code or instructions in the memory:

Obtaining N song audio files, where N is an integer greater than or equal to 1;

The N song audio files are stitched in a preset order to obtain a stitched song audio file.
The device according to claim 13, wherein the splicing the N song audio files in a preset order to obtain a stitched song audio file comprises:

Obtaining a starting position of the N song audio files;

Decoding the N song audio files according to a starting position of the N song audio files to obtain decoded audio data;

Sending the decoded audio data to a cache queue;

The decoded audio data in the buffer queue is spliced in a preset order to obtain a spliced song audio file.
A device according to any one of claims 13 or 14, wherein

Before the acquiring the N song audio files, the processor is further configured to: set a control decoding parameter of the decoding operation.
The apparatus according to any one of claims 13 or 14, wherein said N song audio files comprise at least one of the following song audio files:

MP3 song audio files, WAV song audio files, WMV song audio files, and CD song audio files.
The apparatus according to any one of claims 13 or 14, wherein said decoding operation is performed on said N song audio files according to a starting position of said N song audio files to obtain decoded audio data, include:

Selecting a decoder corresponding to the N song audio files;

The decoder is controlled to perform a decoding operation on the N song audio files to obtain decoded audio data.
The apparatus according to any one of claims 13 or 14, wherein said processor is further used after said splicing a song audio file by splicing said N song audio files in a preset order :

Locking the stitching position of the stitched song audio file;

The stitching position of the stitched song audio file is processed to obtain a seamless stitching song audio file.
A program for performing the method of any one of claims 1 to 6 when the processor calls the program.