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音乐，电子音乐合成，12分律
音乐，电子音乐合成。12分律
1.在钢琴演奏中G音的和弦我们常用G7和弦.不用G和弦.为什么?
2.在乐理中G7和弦5724组成音中2音省略只用574为什么?(和声学中五级七和弦省去第五音)
在12平均律中音的频率 G4=392.00Hz B4=493.89Hz D4=293.66Hz F4=349.23Hz
在纯律中音的频率 G4=396.00Hz B4=495.00Hz D4=293.33Hz F4=352.00Hz
在纯律中D音二个的频率.一个由G和弦产生297.00Hz另一个由Dm和弦产生293.33Hz
G4=396 D=396x3/2/2=297 (钢琴无这个频率)
A4=440 Dx3/2=440 D=293.33 (5度相生律.12平均律.纯律皆D=293)
当前G和弦 D4音=293.33Hz故不会合谐.当D4音=297Hz 才会合谐所以G和弦不会合谐
G7和弦才会合谐.因此有经验的作曲家在配合弦时常用G7和弦而不用G和弦.
- 2022-03-16 11:12:05下载
- 积分：1
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随着视觉C G723，编写基于语音压缩格式编码和设计。
用Visusl C++编写的基于g723.a压缩格式的声音编码与解码库-with Visusl C g723.a prepared based voice compression format for encoding and decoding
- 2022-03-21 00:47:42下载
- 积分：1
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labview 锁相放大器
labview 锁相放大器，基于相关检测原理设计了一种数字锁相放大器，重点研究了采样频率与相关运算结果的关系。发现参考信号为方波而采样频率与信号频率成一定关系时，系统相关运算存在固有误差。为减少该误差，首次将动态采样法引入数字锁相放大器设计中，运算发现动态采样的采样频率数越多，奇点产生的误差越少。基于LabVIEW 软件对所设计的检测系统进行了仿真
测试，测试结果表明该数字锁定放大器在信号幅度为5 V、噪声标准差小于等于50 时( SNR = －34． 04 dB) ，能有效地检测出频
率为500 kHz 以下的信号，系统检测结果与理论计算值的相对误差基本不超过2%。可以用于
- 2023-05-02 01:05:04下载
- 积分：1
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vc实现的
vc实现的-一个操作和表示WAV数据的类c++小例子。具体可以看源代码-vc implementation- an operation and that WAV data is a small example of class c++. Concrete can see the source code
- 2022-08-05 21:07:38下载
- 积分：1
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this is a decoder concluding many audio format
包含有多种语音编码的解码器-this is a decoder concluding many audio format
- 2022-05-06 07:17:34下载
- 积分：1
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这可以作为一种无损压缩格式，前面
这个可以作为无损压缩格式的前端处理，可以降低难压缩音频文件的码率。-This can serve as a lossless compression format, front-end processing, can reduce the bit rate compressed audio files is difficult.
- 2023-07-19 11:05:03下载
- 积分：1
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Famous libmad
著名的libmad-mp3解码库，欢迎大家使用下载，好东西呀。-Famous libmad-mp3 decoder library, welcome everyone to use the download, you good things.
- 2022-12-07 12:50:03下载
- 积分：1
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sndpeek is just what it sounds (and looks) like: real
sndpeek is just what it sounds (and looks) like:
real-time 3D animated display/playback
can use mic-input or wav/aiff/snd/raw/mat file (with playback)
time-domain waveform
FFT magnitude spectrum
3D waterfall plot
lissajous! (interchannel correlation)
rotatable and scalable display
freeze frame! (for didactic purposes)
real-time spectral feature extraction (centroid, rms, flux, rolloff)
available on MacOS X, Linux, and Windows under GPL
part of the sndtools distribution. -sndpeek is just what it sounds (and looks) like: real-time 3D animated display/playback can use mic-input or wav/aiff/snd/raw/mat file (with playback) time-domain waveform FFT magnitude spectrum 3D waterfall plot lissajous! (interchannel correlation) rotatable and scalable display freeze frame! (for didactic purposes) real-time spectral feature extraction (centroid, rms, flux, rolloff) available on MacOS X, Linux, and Windows under GPL part of the sndtools distribution.
- 2022-05-14 09:57:49下载
- 积分：1
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在嘈杂的环境中增强语音信号的语音信号的读取…
在噪声环境下语音信号的增强
语音信号为读入的声音文件
噪声为正态随机噪声-In the noisy environment of the enhanced voice signal voice signal for the read noise of the sound files for the normal random noise
- 2022-07-04 14:31:49下载
- 积分：1
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Demonstration of a single wave file of the model using DMA. You need a great mem...
使用DMA演示一个单一wave文件的示范。 您需要一个巨大的内存模型跑此。
-Demonstration of a single wave file of the model using DMA. You need a great memory model to run this.
- 2022-07-26 16:49:16下载
- 积分：1
