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Description: 本文主要介绍了IIR数字滤波器的设计与实现
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Size: 101433 |
Author: asdtgg |
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Description:
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Size: 101376 |
Author: asdtgg |
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Description: musicdsp source code archive-Analysis
Beat Detector Class
Coefficients for Daubechies wavelets 1-38
DFT
Envelope detector
Envelope Detector class (C++)
Envelope follower with different attack and release
Fast in-place Walsh-Hadamard Transform
FFT
FFT classes in C++ and Object Pascal
Frequency response from biquad coefficients
Java FFT
Look ahead limiting
LPC analysis (autocorrelation+ Levinson-Durbin recursion)
Magnitude and phase plot of arbitrary IIR function, up to 5th order
Measuring interpollation noise
QFT and DQFT (double precision) classes
Simple peak follower
tone detection with Goertzel
Tone detection with Goertzel (x86 ASM)
Effects
2 Wave shaping things
Alien Wah
Band Limited PWM Generator
Bit quantization/reduction effect
Class for waveguide/delay effects
Compressor
Decimator
Delay time calculation for reverberation
DIRAC- Free C/C++ Library for Time and Pitch Manipulation of Audio Based on Time-Frequency Transforms
dynamic convolution
Early echo s with image-mirror techn
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Size: 826368 |
Author: Alan Tang |
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Description: DTMF encoder/decoder using Goertzel algorithm and Biquad filtering
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Size: 128000 |
Author: Zubair |
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Description: MAX262是CMOS双二阶通用开关电容有源滤波器，由微处理器精确控制滤波函数。可构成各种带通、低通、高通、陷波和全通配置，且不需外部元件。每个MAX262器件含有两个二阶滤波器，在程序控制下设置中心频率f0、品质因数Q和滤波器工作方式。包括MAX262详细说明，工作方式，滤波器设计过程，应用举例，设计举例。 -MAX262 is a CMOS switched-capacitor general biquad active filter, filter function by the precise control of the microprocessor. May constitute a variety of band-pass, low pass, high pass, notch and all-pass configuration, and no external components. Each MAX262 device consists of two second-order filters, under program control to set the center frequency f0, the quality factor Q, and filter work. Including MAX262 details, work methods, filter design, application examples, design examples.
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Size: 2262016 |
Author: 闫空间 |
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Description: 滤波器广泛应用于数字信号处理、通信、自动控制领域,但设计可变宽频带有源滤波器则比较困难。利用单片机控制参数可编程的双二阶通用开关电容有源滤波器,精确设置有源滤波器的中心频率f，品质因数Q及有源滤波器的工作方式。本系统主要分为两个部分:即程控滤波器和程控放大器。程控放大器电压增益为40dB，通过单片机控制DA进行分压，可精确实现要求的10dB步进，误差小于0.5 ，通带为100Hz-500KHz，输入电压峰－峰值范围为10mV，在输入范围内无明显失真。由MAX264为核心的滤波器，可设置为高通、低通滤波器。通过单片机直接给出控制频率，使-3dB截止频率在1KHz-20KHz内可调，步进1KHz，误差小于1 。整个系统以52单片机为控制核心，电路简单，性能稳定，且具有较高精度，滤波参数调节通过单片机控制，较为方便。-Filters are widely used in digital signal processing, communications, automatic control area, but the design variable wideband active filter is more difficult. Control parameters using single-chip programmable universal switched-capacitor biquad active filter, active filter accurately set the center frequency f, quality factor Q and the active filter works. The system is mainly divided into two parts: the program-controlled filters and programmable amplifiers. Programmable amplifier voltage gain of 40dB, the DA through the partial pressure of single-chip control, can accurately achieve the required 10dB step, the error is less than 0.5 , passband to 100Hz-500KHz, input voltage peak- the range of 10mV, the input range no significant distortion. By the MAX264 as the core of filter can be set to high pass, low pass filter. Given directly by the microcontroller controls the frequency, the-3dB cutoff frequency at 1KHz-20KHz adjustable, step 1KHz, error is less than 1 . The entire system for
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Size: 1635328 |
Author: 黄倩 |
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Description: IIR数字滤波器。直接级联II型，利用MATLAB产生的系数-IIR filter using cascaded Direct Form II
Coefficients a s and b s correspond to b s and a s from MATLAB
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Size: 1024 |
Author: qinny |
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Description: Cookbook formulae for audio EQ biquad filter coefficients - Bristow-Johnson
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Size: 724992 |
Author: lucap |
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Description: 此功能会产生这是一个“搁置”的设计为一个单一的IIR双二阶系数。 wierldy不够，这种过滤器的类型是不标准的Matlab的滤波器设计工具箱的一部分。这些是常用的过滤器是创建一个图形均衡器的音频信号处理。-This function will generate the coefficients for a single IIR biquad that is a "shelving" design. Wierldy enough, this filter type is not part of the standard Matlab filter design toolbox. These filters are commonly used is audio signal processing to create a graphic equalizer.
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Size: 1024 |
Author: 张成 |
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Description: Here is simple Biquad C code to use in audio graphic equalizer, Lowpass filter, Highpass filter, Band stop, Bandpass etc-Here is simple Biquad C code to use in audio graphic equalizer, Lowpass filter, Highpass filter, Band stop, Bandpass etc...
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Size: 2048 |
Author: Syam Kumar |
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Description: Huffman Bitcounter & coder functions.
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Size: 6144 |
Author: fiebiuber |
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Description: These functions initializes a BIQUAD filter defined as a cascade of biquadratic Filter Sections.
-These functions initializes a BIQUAD filter defined as a cascade of biquadratic Filter Sections.
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Size: 11264 |
Author: ziurennei |
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Description: These functions initializes a Band pass filter BIQUAD / biquadratic Filter Sections.
-These functions initializes a Band pass filter BIQUAD / biquadratic Filter Sections.
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Size: 1024 |
Author: winzangcue |
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Description: These functions initializes a BIQUAD filter defined as a cascade of biquadratic Filter Sections.
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Size: 4096 |
Author: yinqueton |
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Description: IIR Filter Nth Order Implementation Code-IIR Filter Nth Order Implementation Code
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Size: 1024 |
Author: hoang chung |
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Description: BiQuadCalc, Bi Quad Calculator
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Size: 164864 |
Author: G4 |
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