lossless audio

lossless format. 12 Wma WMA (Windows Media audio) is Microsoft's masterpiece in the field of Internet audio and video. The WMA format is a way to reduce data traffic but maintain sound quality to achieve a higher compression rate, the compression rate can generally reach 1:18. In addition, WMA can also be used to prevent copying through t

PCM encoding (original Digital Audio Signal Stream) Type: Audio Maker: ITU-T Required bandwidth: 1411.2 kbps Feature: sound source information is complete, but redundant Advantages: sound source information is fully saved and sound quality is good Disadvantages: Large Information volume, large Redundancy Application: VoIP Royalty: free Note: in computer applications, PCM encoding can reach the high

. Audio sampling frequency fs Digital audio systems reproduce the original sound by converting the acoustic waveform into a series of binary data. The device used in this step is A/D) it Samples sound waves at tens of thousands of times per second. Each sampling record the state of the original simulated sound waves at a certain time point, which is called a sample. Connect a series of samples to descri

I. OGG audio format Overview Ogg is a free and open standard container format that is maintained by the Xiph.org Foundation. The OGG format is not limited by software patents and is designed to efficiently stream media and handle high-quality digital multimedia. "Ogg" means a file format that can be incorporated into a wide variety of free and open source codecs, including audio, video, text (like subtitle

Reprinted, please indicate the source, retain the original post address and the author's signature. URL: http://blog.csdn.net/ysy441088327/article/details/7392842#reply Author: Xu Shu In order to enable audio communication between iPhone and Android, audio files in MP3 format are no better. It is best to convert the data to AMR in 10 seconds.AmrThe file size is about 5 kb. It is suitable for data transmi

Written by: Kesenhoo-Original: http://developer.android.com/training/managing-audio/index.html If our app is capable of playing audio, it's important to let users control the audio in the way they expect. To ensure a good user experience, we should allow the app to manage the current audio focus, as this will ensu

Manage audio playback (from the Chinese version of the Android official training course (v0.9.5 )) If our applications can play audio, it is important for users to control the audio in their expected ways. To ensure a good user experience, we should allow the application to manage the current audio focus, because this

How to convert common audio formats under LinuxJune 28, 2008 15:47:00Hits: 781Often on the electric donkey download the ape image of the CD, after downloading to restore to WAV format, then split and extract their favorite songs, and then into the ape into the computer, but also transferred to MP3 into the MP4 player. Now summarize how the various formats are converted between Linux. The most common audio f

Label: Use SP file code BS algorithm nbsp technology c Video and Audio Encoding/decoding technology: (1) silent FLC (2) audio and visual Avi (3) Both capacity and quality MPEG The quality of MJPEG encoding is quite high. It is a kind of encoding with the highest quality requirement. It is a non-linear system. Therefore, it tries its best to use the jitter algorithm during the Encoding Process (you can

I. Principles In Linux, recording-reads data from the dsp device and playing-writes data to the dsp device. The Development Board uses the sound card UDA1341 to implement audio codec and complete A/D and D/A conversion. The figure below shows the connection between the chip UDA1341 and the CPU: To achieve full duplex, two DMA channels are required for data transmission. Taking audio playback as an example

First, the principle of briefUnder Linux, recording--reading data from a DSP device, putting a sound--writes data to a DSP device.The Development Board uses the sound card UDA1341 realizes the audio codec, completes A/D and D/a conversion, the chip UDA1341 and the CPU connection diagram are as follows:To achieve full duplex, the data transfer requires two DMA channels. Take audio playback As an example, the

Did not find the reprint function where ... So I can only copy it over. Always want to video audio codec technology to do a simple summary, but suffer from the time is not sufficient, has not been able to complete. Today has a lot of free, and finally can summarize a video and audio technology to start a tutorial, can facilitate more people learn from the zero to learn

, barcode scanning, and high frame rate capture◆Hybrid multi-audio tracks and automatic volume control◆Create advanced non-linear, lossless editing applications.Add advanced video editing features, such as video transitions and animation effectsAs a translatorBob McCune is the owner of iOS Consulting and training company Tapharmonic (located in Minnesota State Minneapolis). He has extensive experience in th

　　Audio Cut Merge Master feature introduction: 1. Audio shear Merge Master supports the MP3 file for any time period of cutting, and support MP3, WMA, AMR, Aac,wav and other popular formats. 2. Support lossless shear MP3 and other audio, after shearing, the sound quality unchanged 3. Support a variety of MP3,WAV,AAC

At present, there are a lot of users, when the mic is connected before the connection can not be successful. Here is a detailed description of the wiring method of the front microphone for your reference. 　　I. Intel specification for front-facing audio interfacesIntel has regulated the front audio interface sockets, cable, and pin names for motherboards and chassis in the Front Panel I/O connectivitydesign

Categories: Unity, C #, VS2015Date Created: 2016-04-05 I. INTRODUCTIONThe choice of audio file resources should be based on the principle of smooth, trouble-free operation. The commonly used audio files are listed below.. AIFF is converted to uncompressed audio when importing, which is best for short sound effects.. WAV is converted to uncompressed

IOS crazy explanation-converting recording audio into Mp3 Use a third partyLame,Mp3Audio Encoder. Before using AVAudioRecorder for audio recording, set the parameters: NSString * recordTemporaryPathString = [NSString stringWithFormat: % @/temporary, self. audioTemporarySavePath];// LinearPCM is a lossless encoding format for iOS, but it is bulky.// Recording set

1, the use of QQ audio-visual video playback, in the lower right corner of the player has a wrench-like icon, click on the pop-up "audio-visual toolbox", at this time select the "Interception" tool, into the next step. 2, there will be a cropped area, where you can pull back and forth the progress bar to adjust the cropped content area. Fine-tuning tools are also available to fine-tune the range.

The audio module consists of four sub-modules, which include input, audio, audio, and audio decoding. Audio input and The output module realizes the audio input and output function through the control of the HI35XX chip SIO interf

Use a third -party lame ,Mp3 Audio encoder.Before using Avaudiorecorder for audio recording, set the parameters:NSString *recordtemporarypathstring = [NSString stringwithformat:@ "%@/temporary", Self.audiotemporarysavepath];LINEARPCM is a lossless encoding format for iOS, but it's bulkyRecording settingsNsmutabledictionary *recordsettings = [[Nsmutabledictionary