Background music embedded PPT file
Some formats of music files can be embedded in the PPT file, such as WAV or MP3 format music files, you can implement the music file embedded ppt.
WAV format music file embedded ppt:
First, the other format of the music file into WAV format, format conversion software Many, can be listened to, the format of chemical plants su
If you want to know the relationship between the MP3 frequency, bit rate, bit rate, and sound quality, the higher the frequency, the higher the bit rate, the better the sound quality. It seems that most of the MP3 frequencies are 44100hz. The bit rate is 128,192.
The frequency mentioned here is the sampling rate, which is usually 44100khz, because it is the standard of music CD.Every song is captured from Cd, converted into wav files, and then convert
If you want to know the relationship between the MP3 frequency, bit rate, bit rate, and sound quality, the higher the frequency, the higher the bit rate, the better the sound quality. It seems that most of the MP3 frequencies are 44100hz. The bit rate is 128,192.
The frequency mentioned here is the sampling rate, which is usually 44100khz, because it is the standard of music CD.Every song is captured from Cd, converted into wav files, and then convert
Reference: http://blog.sina.com.cn/s/blog_923fdd9b0101flx1.htmlRealization of speech recognition via Google Voice interfaceRecently there are features in the project that need to implement speech recognition. Toss a few days to do well. At the beginning of the time do not have a clue, the information found on the internet is a mess, or is very ancient implementation methods, some simple code snippets. So I decided to share my experience with everyone.To implement the speech recognition process i
There is a good audio FAQ. If you have time, go up and check it out.
Link: http://forum.doom9.org/showthread.php? T = 68300
The following part is reproduced:
General Audio procedures FAQCross-format techniques for encoding, decoding, and playback.
1. What is the difference between lossy, lossless, and uncompressed audio formats?
Uncompressed audio is simply audio without any compression applied to it. uncompressed audio is commonly used in AV conversions in PCM or
Speech recognition through Google Voice interface
Recently, there is a need to implement the speech recognition function in the project. It took a few days to get it done. There was no clue at the beginning, and the information found on the Internet was messy, or very old implementation methods and some simple code snippets. So I decided to share my experience with you.
The process for implementing Speech Recognition in IOS is as follows:
Recording-> PCM format-> convert
In the last article, I added a functional interface for browsing local WAV Files with slight changes.
ProgramCode
View code
Using System; Using System. Windows. forms; Using System. Media; Namespace Alarmclock{ Public Partial Class Form1: Form{ Public Form1 (){Initializecomponent ();}Soundplayer player = New Soundplayer (); Private Void Form1_load ( Object Sender, eventargs E){Timer1.start (); // Bind to Co
C # Call the C # sample code below winmm. DLL to play the audio file # demonstrate how to use the platform call service on Windows platform to play the waveform sound file.ExampleThis code example uses dllimport to import the playsound method entry point of winmm. dll as form1 playsound. This example has a simple windows form with a button. Click this button to open the standard Windows openfiledialog dialog box to open the file to be played. After the waveform file is selected, the playsound ()
DirectX for the first time.
In short, new features provided by DirectX 8.0 include:
•
DirectX graphics --IntegrationDirectDrawAndDirect3dMicrosoft DirectDraw and Microsoft direct3d are integrated into the DirectX graphics component. The API has been greatly updated and is now easier to use and supports the latest graphics hardware. The most striking new feature is the support for programmable colorants (the colorant is a piece of code written in a colorant language, the coloring lan
AuthorLi Jin
Work UnitYantai South Street Construction Bank Ministry of Science and Technology
Various resources are often used in programming. For example, you want to change your own icons for your program, use some lively cursors to increase interest, play some sound and animation files, or use a program written by others to implement a function. We often want to put these resources directly in the EXE file to form a separate executable file, which leads to a problem of how to access and use
part of the VBR is its own psychological audio model. Early StageLameThe ISO encoding technology is used, but the psychological audio model (LameGpsycho) has been fully developed independently and has nothing to do with other companies' technologies. The most important thing is free software.
Iii. Essentials of rail capturing
First, we need to compress the CD to MP3 and save it as WAV. It is very complicated and troublesome to compress the CD into
Delphi is an excellent visual programming tool of Inprise (formerly Borland). Its built-in Mediaplayer control is a powerful tool for developing multimedia. You can use it to create a program that can play multimedia files like the interpreter in just a few minutes. But few people may know that it can also be used as a recording program.Run Delphi and drag a Mediaplayer control to the form on the System page. The default name is Mediaplayer1. because our program uses its own button, set the Visi
= m_cpvoice-> SKIP (szgarbage, skipnum, ulgarbage );Skipnum is the number of sentences to be skipped. The value can be positive or negative.According to the SDK description, SAPI currently only supports the sentence type. SAPI uses punctuation marks to differentiate sentences.
6. Play a WAV file. SAPI can play wav files, which is implemented through the ispstream interface:
Ccomptr Wchar szwwavfilenam
);Skipnum is the number of sentences to be skipped. The value can be positive or negative.According to the SDK description, SAPI currently only supports the sentence type. SAPI uses punctuation marks to differentiate sentences.
6. Play a WAV file. SAPI can play wav files, which is implemented through the ispstream interface:
Ccomptr Wchar szwwavfilename [norm_size] = l "";;
Uses_conversion;Wcscpy (szw
WAV: Losslessis a sound file format developed by Microsoft that conforms to the Piffresource Interchange File format specification for storing audio information resources for the Windows platform and is supported by the Windows platform and its applications. “*. WAV "format support MSADPCM, Ccittalaw and other compression algorithms, support a variety of audio digits, sampling frequency and channel, the sta
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