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volumemeter_src
- VolumeMeter (Managed DirectX) This project is a live volume meter control for monitoring audio levels from a sound card. It is written entirely in C#, and uses Microsoft s Managed DirectX (June release). You can drag-and-drop the control into any W
fister
- 一个语音处理程序，使用底层API进行录制和播放wave文件。-A voice processing program, which uses low-level API to record and play wave files.
SineWave
- 我们将使用低阶的波形声音API（即，前缀是waveOut的函数）来建立一个称作SINEWAVE的声音正弦波生成器。此程序以1 Hz的增量来生成从20Hz（人可感觉的最低值）到5,000Hz（与人感觉的最高值相差两个八度音阶）的正弦波。-We re going to use the low-level waveform audio APIs (that is, the functions beginning with the prefix waveOut) to create an audio s
peaklevel
- audio peak level windows control, it is a good gui control based on microsft mfc libary. it can be used freely.
osd
- 在屏幕上显示音量控制信息 调用Core Audio APIs 适应于vista win7-This sample uses the Core Audio APIs to implement an on-screen display that shows volume changes to the output stream that plays through the default audio-rendering endpoint device. The on-screen display a
audio-player-no-api
- C#实现的底层音频播放器 通过C#语言，我们来实现了编制底层音频播放器-C# implementation of the underlying audio player through the C# language, we have to achieve the preparation of low-level audio player
fbvumeter
- Audio, Input, output level meter
STM32-H103
- STM32-H103 board is entry level development board for the new ARM Cortex M3 family of devices produced by ST Microelectronics Inc. With STM32-H103 you can explore the features of STM32 family on budged, the board have everything necessary to bu
Class_D_audio_amplifier_design
- D类音频放大器设计：音频放大器的目的是以要求的音量和功率水平在发声输出元件上重新产生真实、高效和低失真的输入音频信号-Class D audio amplifier design: the audio amplifier is the purpose of the volume and power requirements of the level of sound output device in the re-created real, efficient, and low distorti
ADPCMCodec
- The DVI Adaptive Differential Pulse Code Modulation (ADPCM) algorithm was first described in an IMA recommendation on audio formats and conversion practices [1]. ADPCM is a transformation that encodes 16-bit audio as 4 bits (a 4:1 compression ratio).
AGC
- AGC algorithm is used to automatically adjust the speech level of an audio signal to a predetermined value (normally used unit is in decibel or db ) so that subsequent processing operates on signals within a specified dynamic -AGC algor
STM32-H103
- STM32-H103 board is entry level development board for the new ARM Cortex M3 family of devices produced by ST Microelectronics Inc. With STM32-H103 you can explore the features of STM32 family on budged, the board have everything necessary to bu
VU-back
- This project is an Audio level meter. the project design in Protel 99se and could be open with Protel 99se http://www.altium.com/community/downloads/en/legacy.cfm The project include schematic and PCB ready to build. I wish you love it
Wave-Audio-Package
- ｛pudn首发+绝对精品｝我在整个互联网上辛苦搜寻了一个星期，终于在一位同仁那里得到了这个控件。=======这个控件可以控制系统级别的麦克风音量、侦听麦克风并保存声音，还可以方便地控制系统音量、录音、甚至转换录音格式。我相信一定有很多和我一样为了实现以上功能折腾了很久，现在我率先找到了，不用说，赶紧发上来-{Pudn first character} I guarantee this thing is absolutely fine, I search the entire hard on t
audio-player-no-api
- 很多人实现了比较高层的系统组件，来实现话音/音乐的播放，如基于Windows Media Player或DirectShow的。不过，这些有很多的缺陷，比如，他们不可以在on the fly情况下操作实际的音频数据。这是C#不调用api的情况下实现的底层音频操作.-Many people achieve a relatively high level of system components, to achieve the voice/music player, such as Windows
Content-based-Identification-of-Audio-Material-Us
- Along with investigating similarity metrics between audio material, the topic of robust matching of pairs of audio content has gained wide interest recently. In particular, if this matching process is carried out using a compact representation
MP3geshijiexi
- MP3 文件是由帧(frame)构成的,帧是 MP3 文件最小的组成单位。MP3 的全称应为 MPEG1 Layer-3 音频 文件,MPEG(Moving Picture Experts Group)在汉语中译为活动图像专家组,特指活动影音压缩标准,MPEG 音频文件是 MPEG1 标准中的声音部分,也叫 MPEG 音频层,它根据压缩质量和编码复杂程度划分为三层-MP3 files by frame (frame) consisting of a frame is composed o
Alvas.Audio
- Alvas.Audio allows C# and VB.Net developers to create applications that play, record, edit and convert sound. Key Features: record/play uncompressed and compressed audio data play mixed audio data record/play data to/from the stream set up mixer cont
MultithreadVoiceComm
- 一个关于多线程语音聊天系统的专业论文。 采用低级音频设备驱动接口Waveform Audio API来采集和播放音频-A professional papers on multi-threaded voice chat system. Low-level audio device driver interface Waveform Audio API to capture and play audio
Audio-pIayer
- 介绍了2种建立音频播放系统的方法：DirectSound技术以及直接调用低级音频设备。该系统基于RTP/RTCP实时协议控制音媒体流的传输，采用UDP作为传输层协议，在PC机+MS Windows OS系统上，实现了音频流 媒体播放器。-Introduces two kinds of methods to establish audio playback system: DirectSound technology and direct calls to low-level audio de