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5800C
- 5800C Fm芯片资料和驱动代码 技术特点: *国内首颗采用CMOS工艺的调频收音机芯片; *驱动能力强,可直接驱动耳机及放大器; *功耗低,比国外先进方案还低1mA; *频率覆盖从76M-108M的各国调频波段; *高度集成度,所需外围器件数为零; *强大的LOW-IF数字音频结构; *强大的数字信号处理技术(DSP),实现自动频率控制和自动增益控制; *数字自适应噪声抑制 接受灵敏度高、音质出色、立体声效果优异; *支持重低音,可调式电台搜寻、柔
Speech-Enhance
- 采用谱减法的语音降噪实现代码,适用于语音和音频系统中,可直接调用。-Speech noise reduction using spectral subtraction implementation code, for voice and audio systems, can be called directly.
Speech-Enhance-Winner
- 采用winner的语音降噪实现代码,适用于语音和音频系统中,可直接调用。-Speech noise reduction using Winner filter implementation code, for voice and audio systems, can be called directly.
threshold
- Finding tone and noise maskers a audio-Finding tone and noise maskers a audio
FM-
- 调频广播中,为了提高音频高频率端的信噪比,在发射端进行的预加重处理。-FM radio, in order to improve the high frequency end of the audio signal to noise ratio, performed at the transmitter pre-emphasis.
sengmangsei
- Realization of 10 digital audio recognition program Independent component analysis algorithm reduces the raw data noise, In matlab R2009b debugging through.
Wiener filtering
- 对一种音频信号进行抽样,加噪,然后进行维纳滤波(Sampling an audio signal, adding noise, and then using Wiener filtering.)
DQPSK
- (1)建立DQPSK调制和解调 SIMULINK仿真模型,评估其在AWGN信道和瑞利衰落信道下的误码率性能(画出信噪比变化时的误码率曲线); (2)基于(1)建立的SIMULINK仿真模型,分别在AWGN信道和瑞利衰落信道下发送一个实际音频文件,在接收端实时播放出来((1) the DQPSK modulation and demodulation SIMULINK simulation model is established to evaluate the bit error rate p