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Description: 1IC网友 做的硬盘MP3资料公开
该播放器使用了美国atmel公司出品的mp3播放器专用芯片at89c51snd1c.
本芯片特性如下：
1)MCS51内核，可以利用单片及开发软件Keil软件方便开发mp3播放器，无需特殊软件平台；
2)MPEG I/II-Layer 3 hardware decoder
.独立MP3 Decoder
.支持48,44.1,32,24,22.05,16khz取样频率
.支持软件31阶音量控制,高中低音均衡控制
.重低音效果
3)集成DAC部件，支持PCM,IIS格式；
4)64K字节片上代码存储空间（100K次擦写寿命）
5)4K字节boot flash memory,USB/UART下载代码
6)集成USB1.1 device部件
7)MMC卡接口
8)IDE/ATAPI接口（HDD/CD-ROM Interface)
9)2通道ADC,8Khz取样-1IC Netizen done disclosing information on the hard drive MP3 player that uses a ATMEL producer of the m p3 players ASIC at89c51snd1c. the chip features are as follows : 1) MCS51 kernel, and can use a single software Keil software development and facilitate the development of MP3 players, without special software platform; 2), MPEG I / II-Layer 3 hardware decoder. De independent MP3 coder. 48,44.1,32,24,22.05 support, ASF sampling frequency. support software volume control 31 bands, high school bass equalization control. bass results 3) DAC integrated components, support PCM, IIS format; 4) 64K-byte on-chip code storage space (100K erase life time) 5) 4K bytes boot Flash h memory, USB / UART download code 6) integrated USB 1.1 device components 7) MMC card interface 8) IDE / ATAPI interfac
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Size: 1008633 |
Author: 史比 |
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Description: 把mp3文件解码成pcm格式 并存储为pcm后缀的文件。并可以用cool edit pro 软件对pcm格式文件进行播放-put into MP3 decoding PCM format for the storage and PCM suffix document. Cool and can be used to edit pro software PCM format player
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Size: 194894 |
Author: 林永杰 |
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Description: 用于向网络发送MP3,PCM,WAV格式的文件
Platform: |
Size: 152018 |
Author: 112254 |
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Description: 是一个很详细的MP3解码原理的源码，十分详细，解码成为PCM音频流，大家都可以看下
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Size: 95072 |
Author: 123580032@qq.coma |
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Description: HtpcMusic--c#编写的全屏mp3播放器，使用了wmp控件-HtpcMusic-- c# prepared in full-screen MP3 player, the use of controls :
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Size: 162816 |
Author: |
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Description: EM8511s中使用的mp3录制源代码，起始录制成为PCM格式，然后转换为mp3，优秀的PMP方案。-EM8511s use the mp3 recording source code, the initial recording as PCM format, then converted to mp3, the PMP outstanding program.
Platform: |
Size: 115712 |
Author: 浪心剑客 |
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Description: 通过麦克风录音，然后把pcm流压缩成mp3格式的文件-Sound recording through a microphone, and then the pcm stream compressed into mp3 format
Platform: |
Size: 131072 |
Author: 朱文政 |
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Description: MPlayer 广泛地支持音视频输出驱动。它不仅可以使用 X11, Xv, DGA, OpenGL, SVGAlib, fbdev, AAlib, libcaca, DirectFB, Quartz, Mac OS X CoreVideo, 也能使用 GGI, SDL (及它们的所有驱动), 所有 VESA 兼容显卡上的 VESA (甚至不需要 X11), 某些低级的显卡相关的驱动 (如 Matrox, 3dfx 及 ATI) 和一些硬件 MPEG 解码器卡, 比如 Siemens DVB, Hauppauge PVR (IVTV), DXR2 和 DXR3/Hollywood+。它们中绝大多数支持软件或硬件缩放, 所以你可以享受全屏电影。
其编码成的 MPEG-4 (DivX/Xvid), 是 libavcodec 编解码器的一种和使用 1, 2 或 3-passes(通) 的 PCM/MP3/VBRMP3 音频。此外还具有流复制的能力, 拥有强大的(过滤器)插件系统(裁剪, 扩展, 反转, 后处理, 旋转, 缩放, 降噪声, RGB/YUV 转换)等。
MPlayer 有个完全可配置的, 命令驱动的控制层, 让你通过键盘, 鼠标, 操纵杆或遥控器(需使用 LIRC)来控制 MPlayer。参见 − input 选项定制控制层的方法。 -err
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Size: 635904 |
Author: yuying |
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Description: pcm wav mp３播放语音文件 源代码 -pcm wav mp3 player voice file source code
Platform: |
Size: 3072 |
Author: chenyangbo |
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Description: 通过mp3解码器解码，并将解出的pcm码通过openal播放-Through the mp3 decoder decoding, and solved through the pcm code openal player
Platform: |
Size: 319488 |
Author: zmy |
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Description: MP3的编解码，由输入端获得PCM流后进行mp3编码，及到接收端解码过程-MP3 codec from the input PCM stream received after the mp3 encoding and decoding process to the receiving end
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Size: 2528256 |
Author: lemon |
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Description: 数字相框(digital photo frame)系统实现的源码，以前公司项目，现在解禁！实现音频MP3,PCM解码，视频MPEG4/H.264的播放，JPEG解码，并包括系统界面设计。-digital photo frame s project source code.
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Size: 219136 |
Author: J |
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Description: libZPlay是解析mp3, ogg, ac3, flac, wav and pcm 种格式的多媒体库的源码，整合支持所有格式的解码器。你不需要额外的lib。仅使用kernel32.dll, user32.dll, gdi32.dll 和 winmm.dll，微软Windows标准库。也不需要mfc和.net的支持，只是纯粹的WINAPI。简单几行代码就可以实现播放-libZPlay multimedia library for playing mp3, ogg, ac3, flac, wav and pcm files and streams. This library integrate all decoders for supported formats. You don t need additional libraries. Library is using native WINAPI functions from kernel32.dll, user32.dll, gdi32.dll and winmm.dll. All these libreries are standard libraries on all Microsoft Windows. There is no need for MFC or .NET support. Just pure WINAPI. Library will play music directly to soundcard. Simple and easy. No need for additional programming. You can play music using only 3 lines of code (create class, open file and start playing). Simple, simple, simple ...
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Size: 2734080 |
Author: liuweiwei |
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Description: pcm格式音频压缩为mp3的代码。非常好用哦，也可以用来当做学习开发的资料。-pcm to mp3 audio compression format code. Oh, very easy to use, can also be used as learning materials development.
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Size: 405504 |
Author: 丁宇 |
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Description: libmad is a powerful open source library written in C that decodes MP3 files to uncompressed PCM data. However, it compiles as a static library, limiting its access to C/C++. I have written code (based on the source madlld) that compiles to a DLL, enabling other languages (i.e., C#, Visual Basic etc.) to access the libmad library using the simple interface I ve provided.
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Size: 12288 |
Author: xinghe |
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Description: 将PCM数据转换成MP3数据，pcm数据是音频原始数据-The PCM data into MP3 data, pcm audio data is original data
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Size: 136192 |
Author: 十年寒窗 |
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Description: The goal of this project is to design a MPEG Layer III (MP3) player using a FPGA board.
The FPGA will read MP3 source files, decode them into a 16-bit Pulse Code Modulated
(PCM) output, and play the audio files through an external speaker.
Platform: |
Size: 155648 |
Author: Amol/justamol |
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Description: MP3格式解析，播放，暂停，重播，调用PCM解析接口-MP3 format parsing, play, pause, replay, parse calls PCM Interface
Platform: |
Size: 1258496 |
Author: zhaohang |
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Description: PCM音乐播放，在生成的音乐片段中选择一段进行播放，就如一个小型的MP3-PCM music player, select a playback in the generated music fragment, as a small MP3
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Size: 1529856 |
Author: 李炳 |
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Description: mp3播放源码，MP3功能的实现
7.1基本概念
PCM: 脉冲编码调制
声音是模拟量
计算机能处理的是数字量，涉及模拟量和数字量的相互转换
录音时是模拟量转数字量
播放时是数字量转模拟量
采样频率：
每秒钟抽取声波幅度样本的次数
当采样频率应该在40kHz左右，保证声音不失真
量化位数：
每次采样，模拟音频信号的振幅用多少个bit来表示
一般使用16bit
声道数：
有单声道和双声道之分，双声道又称为立体声
MP3：
音频数据的压缩算法
有损压缩（还原后是有失真的）
压缩比可以接近10:1-12:1
使压
缩后的文件在回放时能够达到比较接近原音源的声音效果(But for now, I only read simple English, I will not speak English.
I am Chinese, and I don't speak English. I really appreciate your help)
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Size: 26500096 |
Author: 豪哥牛B
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