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Description: LPC vocoder
LPC vocoder with several option
Graphical user interface
Also included several .wav file as example
Platform: |
Size: 171008 |
Author: NeeL |
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Description: It is GUI file, that permit play audio in WAV format-It is GUI file, that permit play audio in WAV format
Platform: |
Size: 485376 |
Author: Ogeid |
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Description: OFDM信号的编码译码仿真，英文说明更详细。-This simulation script set allows for an OFDM transmission to be
simulated. Imagetx.m generates the OFDM signal, saving it as a
windows WAV file. This allows the OFDM signal to be played out a sound
card and recorded back. Imagerx.m decodes the WAV to extract the
data.
settings.m contains all the common settings to specify all the
simulation parameters such as FFT size, number of carriers,
input data source file, input and output WAV files, etc.
See settings.m for more details.
Note: The both the receiver and transmitter must have a copy of the
input data file, as this is used for calculating the exact number
of data words in the transmission.
The scripts should work as extracted. Just run imagetx.m to generate the
OFDM signal. Then run imagerx.m to decode the signal. The initial settings
transmit a wave file Corrs.wav . The decoded OFDM data ( Out.wav ) can be
compared with the original data by listening to the two wave files.
Platform: |
Size: 59392 |
Author: 以琳 |
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Description: function [Y,FS,NBITS,OPTS] = mp3read(FILE,N,MONO,DOWNSAMP,DELAY)
MP3READ Read MP3 audio file via use of external binaries.
Y = MP3READ(FILE) reads an mp3-encoded audio file into the
vector Y just like wavread reads a wav-encoded file (one channel
per column). Extension ".mp3" is added if FILE has none.
Also accepts other formats of wavread, such as
Y = MP3READ(FILE,N) to read just the first N sample frames (N
scalar), or the frames from N(1) to N(2) if N is a two-element vector.
Y = MP3READ(FILE,FMT) or Y = mp3read(FILE,N,FMT)
with FMT as native returns int16 samples instead of doubles
FMT can be double for default behavior (to exactly mirror the
syntax of wavread).
-mp3read
Platform: |
Size: 5120 |
Author: 陳聰明 |
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Description: 对信号进行四级小波包分解重构的源程序。将要分解的数据文件存放在E:\ta.wav -4 of the signal reconstruction wavelet packet decomposition of the source. Decomposition will be stored in the data file E: \ ta.wav '
Platform: |
Size: 1024 |
Author: yanhaifeixue |
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Description: 利用matlab模拟的语音识别系统，读取wav文件进行信号处理-Matlab simulation of the use of voice recognition systems, to read wav files Signal Processing ~ ~ ~
Platform: |
Size: 2051072 |
Author: wujian |
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Description: 读进来WAV格式的语音数据，并绘制其波形，再播放WAV音频。-Reading into WAV format voice data, and mapping of its waveform, and WAV audio player.
Platform: |
Size: 34816 |
Author: cuicui |
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Description: function pitchwatch(x,Ts)
Plot the pitch keys.
pitchwatch(x,[Ts])
:: Syntax
The array x is the input signal and Ts is the (optional) sampling period.
Example on use: [x,Fs] = wavread( Hum.wav )
pitchwatch(x,1/Fs)
:: Information
Make your own wav-files with the Windows Sound Recorder. Choose the attributes
PCM 8000Hz, 16bit, Mono when saving the wav-file-function pitchwatch(x,Ts)
Plot the pitch keys.
pitchwatch(x,[Ts])
:: Syntax
The array x is the input signal and Ts is the (optional) sampling period.
Example on use: [x,Fs] = wavread( Hum.wav )
pitchwatch(x,1/Fs)
:: Information
Make your own wav-files with the Windows Sound Recorder. Choose the attributes
PCM 8000Hz, 16bit, Mono when saving the wav-file
Platform: |
Size: 99328 |
Author: michael4u2345 |
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Description: 语音分帧程序，解决了MATLAB难以读取.WAV问题-Voice sub-frame process of MATLAB to solve difficult to read. WAV problem
Platform: |
Size: 1024 |
Author: Way Hu |
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Description: Simulation of Residual Excited Linear Prediction (RELP) coding for speech:
This simulation give your voice or available clear wav file.This encoder have linear predictor that decreases signal s dynamic (lower quantization level). This technique also use lowpass filtering to make lower bandwidth and reconstruct it with three methods that is chosen in decoder. For example duplicate same spectrum of encoded signal that filtered in upper frequency.-Simulation of Residual Excited Linear Prediction (RELP) coding for speech:
This simulation give your voice or available clear wav file.This encoder have linear predictor that decreases signal s dynamic (lower quantization level). This technique also use lowpass filtering to make lower bandwidth and reconstruct it with three methods that is chosen in decoder. For example duplicate same spectrum of encoded signal that filtered in upper frequency.
Platform: |
Size: 855040 |
Author: Ardalan |
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Description: 将PCM-A转换为WAV的小工具，MingW编译通过，最初是用来处理VoIP RTP流用的-PCM-A will be converted to WAV gadgets, MingW compile is passed, the first is used to handle VoIP RTP streams used
Platform: |
Size: 238592 |
Author: kevin |
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Description: This a notch filter created for matlab, if you enter your own wav file it will filter the noice in the background. -This is a notch filter created for matlab, if you enter your own wav file it will filter the noice in the background.
Platform: |
Size: 1024 |
Author: Wacokid |
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Description: 端点检测是指用数字处理技术来找出语音信号中的各种段落（如音素、音节、词素、词等）的始点和终点的位置。语音段起止端点检测是语音分析、语音合成和语音识别中的一个必要环节。传统的端点检测方法是从wav文件中获取语音采样，将其分帧并计算短时能量和过零率参数，然后进行端点检测。这种工作方式被称为离线处理方法 ，无法实现语音信号的实时处理，对于语音信号分析具有一定的局限性。本文通过开发ActiveX控件，在MATLAB环境下将其嵌入到figure窗口中，以GUI程序的方式使用，实现语音信号端点检测的实时处理。-Endpoint detection is the use of digital processing techniques to identify the speech signals in a variety of paragraphs (such as phoneme, syllable, morpheme, word, etc.) the starting point and the end position. Speech endpoint detection is a paragraph beginning and end speech analysis, speech synthesis and speech recognition of a necessary link. Traditional endpoint detection method is to obtain from the wav file voice sampling, its sub-frame and calculate the short-term energy and zero-crossing rate parameters, and then proceed to endpoint detection. This work is called off-line approach can not achieve real-time speech signal processing, analysis of the speech signal has a certain limitations. In this paper, through the development of ActiveX controls, in the MATLAB environment to embedded figure window to use GUI program, the realization of speech signal processing real-time endpoint detection.
Platform: |
Size: 30720 |
Author: cike |
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Description: 用matlab对wav文件进行频谱分析，并画出频谱图-att
Platform: |
Size: 64512 |
Author: shen |
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Description: 为给定的wav文件绘制频谱图（频谱照片）。内附程序及报告书。-Wav files for a given Spectrogram diagram drawing (spectrum photo). Included procedures and report.
Platform: |
Size: 125952 |
Author: fashenqq |
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Description: 钢琴声音频谱分析，电子音乐合成的源程序
以及合成声音wav文件。
huxuec@yahoo.com.cn-Piano sound spectrum analysis, the synthesis of electronic music synthesis of the sound source, as well as wav files. huxuec@yahoo.com.cn
Platform: |
Size: 2811904 |
Author: huxuec |
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Description: 一种基于DCT变换的音频数字水印，将MP3音乐声音文件转化为WAV声音文件，将水印信息嵌入到WAV声音文件，再将WAV声音文件转化为MP3音乐声音文件。 -DCT-based audio digital watermark, the MP3 music sound files into WAV sound files, the watermark information embedded into the WAV sound files, and then WAV sound files into MP3 music sound files.
Platform: |
Size: 34816 |
Author: 帅俊 |
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Description: 可以將WAV檔的資訊取出，並且能由TXT檔自創WAV檔，顯示聲音資訊，包含取樣頻率，長度，波形...等等之類-WAV files of information can be removed, and can create their own WAV files from the TXT file, display the sound information, including sampling frequency, length, wave ... and so forth and the like
Platform: |
Size: 2048 |
Author: aaron |
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Description: DTMT编码和解码程序。可以把电话号码先编码成为wav文件，再通过解码把它恢复原来的号码-DTMT encoding and decoding process. Phone numbers can be encoded into wav files first, and then put it through the decoder to restore the original number
Platform: |
Size: 1024 |
Author: 吴广豪 |
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Description: 改变原始wav音频信号的抽样频率，并且显示处理前后声音信号的频谱.有助于帮助大家理解奈圭斯特抽样定理。-Change the original wav audio signal sampling frequency, and shows the spectrum of sound signal before and after treatment. Helps to help you understand the Nyquist sampling theorem.
Platform: |
Size: 143360 |
Author: leo |
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