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Description: 单音频检测Goertzel算法类-single audio detection algorithm Goertzel algorithm category
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Size: 14964 |
Author: 汪颖 |
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Description: 单音频检测Goertzel算法类-single audio detection algorithm Goertzel algorithm category
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Size: 14336 |
Author: 汪颖 |
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Description: Goertzel算法是DTMF信号检测的核心，它利用二极点的IIR滤波器计算离散傅立叶变换值，快速有效的提取输入信号的频谱信息。-Goertzel algorithm algorithm is DTMF signal detection at the core, It uses two poles of the IIR filter calculating the discrete Fourier transform value rapid and effective extraction of the input signal spectrum of information.
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Size: 9216 |
Author: zhaihui |
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Description: Goertel算法(c语言)用于对特定频率的检测-Goertel algorithm (c Language) is used to detect the specific frequency
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Size: 235520 |
Author: Lu |
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Description: 在MATLAB中用Goertzel算法（先用FFT算法，再用goertzel算法，）仿真DTMF的产生与检测的程序。应用于双音多频信号的产生与检测。-in Goertzel algorithm using MATLAB (first using FFT algorithm, reuse goertzel algorithm) simulation DTMF detection with the selection process. Used DTMF signal detection with the selection.
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Size: 1024 |
Author: 徐政 |
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Description: 利用VC6.0完成的DTMF码的识别.对按键的声音数据利用格策尔算法进行频率识别,进而预测出所按的按钮的位置.-VC6.0 completed using DTMF identification code. The voice of key data on the use of Goertzel algorithm frequency identification, and then predict the location of the button press.
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Size: 285696 |
Author: 付晓强 |
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Description: Generation of signal with extra parameters
Detection using
Fast Fourier Transform Algorithm
Goertzel Algorithm
Digital Filtering (FIR Filter bank)
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Size: 63488 |
Author: dairy |
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Description: DTMF实时解码，采用goertzel算法，通过监测信号中的两个主要频率从而得出DTMF值-DTMF decoder in real time, using goertzel algorithm, by monitoring the signal so as to arrive at the two main frequency DTMF value
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Size: 611328 |
Author: cuijianbing |
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Description: DTMF(双音多频)是用两个特定的单音频组合信号来代表数字信号的一种编码技术。两个单音的频率不同，代表的数字或实现的功能也不同。可采用8种频率代表电话机上的16个按键，10个数字键0~9和6个功能键*、#、A、B、C、D。具体的频率组合见参考书。要求：
(1) 根据键盘输入的符号，利用MATLAB产生对应的DTMF信号；(2) 分别利用FFT算法和Goertzel算法计算该DTMF信号的频谱并画出频谱图；(3) 根据频谱图确定DTMF信号所代表的符号是否和输入的符号一致。
-DTMF (Dual Tone Multi-Frequency) is a single with two specific combination of audio signals to represent a kind of digital signal coding techniques. Two monosyllabic different frequency, on behalf of the numbers, or the realization of the functions are also different. Eight kinds of frequency of use on behalf of telephone on the 16 keys, 10 numeric keys 0 ~ 9 and 6 function keys*,#, A, B, C, D. The frequency of specific composition of reference books. Requirements: (1) According to the keyboard input of symbols, the use of MATLAB have a corresponding DTMF signal (2), respectively, using FFT algorithm and the Goertzel algorithm DTMF signal spectrum and frequency spectrum draw (3) According to DTMF signal frequency spectrum to determine represented by symbols and input symbols unanimously.
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Size: 15360 |
Author: wyyy |
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Description: 本程序用于检测音频文件中是否具有DTMF信号，若有则将其检出。
程序首先使用Goertzel算法求出以FRAMESIZE（默认200）为大小的一帧数据在8个DTMF频点上的能量。
对Goertzel算法的改进，对于系数的计算不是采用2*cos[2*pi*k/N]，而是采用2*cos[2*pi*fn/fs],这样能够降低误差。
确定了8个频点的能量后运用一系列判决门限来确定有没有DTMF信号，以及信号是什么。
-This procedure used to detect whether an audio file with a DTMF signal, if so, what will be its detection. Procedures to derive the first use of Goertzel algorithm to FRAMESIZE [default 200] for the size of data in an eight point DTMF frequency energy. Of the Goertzel algorithm for the calculation of coefficients instead of 2* cos [2* pi* k/N], instead of using the 2* cos [2* pi* fn/fs], this can reduce the error. Identified eight frequency energy use after a series of sentences to determine the threshold has no DTMF signal, as well as the signal is.
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Size: 620544 |
Author: 李昊然 |
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Description: GOERTZEL算法,应用于音调检测，能够连续实时的进行FFT处理。-GOERTZEL algorithm, applied to tone detection, continuous real-time be able to deal with the conduct of FFT.
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Size: 1024 |
Author: 刘俊廷 |
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Description: DTMF for matlab, using Goertzel algorithm and some test to veryfy the different tones
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Size: 3072 |
Author: xywaka |
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Description: 介绍了一种实际已经调试完毕的能量检测算法-goertzel-This paper presents a debugging has been completed the actual detection algorithm of the energy-goertzel
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Size: 702464 |
Author: yeping |
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Description: 用Goertzel算法计算两正弦波信号的相位差-Goertzel algorithm using two-phase sine wave signals
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Size: 1024 |
Author: zw |
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Description: Goertzel DFT implementation in C#.
This is Goertzel s style of calculating Discrete Fourier Transform, is a windowed transform similar to STFT. This implementation will need some small modification for your use, but I post because it is rare in C# to find this algorithm!-Goertzel DFT implementation in C#.
This is Goertzel s style of calculating Discrete Fourier Transform, is a windowed transform similar to STFT. This implementation will need some small modification for your use, but I post because it is rare in C# to find this algorithm!
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Size: 1024 |
Author: sefstrat |
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Description: Goertzel algorithms for DTMF decoding demonstrated in MathLab and realized in C for TMS320C6713 and TMS320C5510 DSK.
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Size: 781312 |
Author: SimonS65 |
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Description: 3个完整的DTMF汇编程序，包括DTMF信号的产生和DTMF译码，译码采用Goertzel算法，5406上测试通过-3 programs of dtmf encoder and decoder,include goertzel algoritm
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Size: 20480 |
Author: 小华 |
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Description: Goertzel基本算法在每次采样后立即进行处理，在每个第N次采样进行一次音调检测。在采用FFT算法时，我们要对成块的采样进行处理，但这并不意味着必须按块来处理数据。数字处理的时间很短，因此如果每次采样都存在一次中断，那么这些数字处理完全可以在中断服务程序(ISR)内完成。或者，如果系统中存在采样缓存，那么可以持续采样，然后进行批处理。-Goertzel basic algorithms in each sample immediately after processing, in each of the first N sub-samples to conduct a tone detection. In the use of FFT algorithms, we would like to be processed into a block of samples, but this does not mean that must block processing the data. Digital processing time is very short, so if an interrupt for each sample are present, then the digital processing is fully able to interrupt service routine (ISR) to complete. Or, if the system exists in sample buffer, you can continue to sample, and then batch.
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Size: 23552 |
Author: 陈安伟 |
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Description: This is a goertzel filter in Simulink, it decodes DTMF tones and displays the detected numbers.
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Size: 10240 |
Author: sloory |
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Description: DTMF tone detection with Goertzel Algorithm
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Size: 70656 |
Author: ntnt |
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