Description: A-Law and mu-Law
Companding
Implementations Using
the TMS320C54x-A-Law and mu-Law Companding Implementati Using the TMS320C54x ons Platform: |
Size: 144608 |
Author:张俊鹏 |
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Description: The µ -law algorithm (pronounced myoo-law) is a companding algorithm, primarily used in the digital telecommunication systems of North America and Japan. As with other companding algorithms, its purpose is to reduce the dynamic range of an audio signal. In the analog domain, this can increase the signal-to-noise ratio (SNR) achieved during transmission, and in the digital domain, it can reduce the quantization error (hence increasing signal to quantization noise ratio). These SNR increases can be traded instead for reduced bandwidth for equivalent SNR. Platform: |
Size: 966744 |
Author:junwang |
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Description: A-Law and mu-Law
Companding
Implementations Using
the TMS320C54x-A-Law and mu-Law Companding Implementati Using the TMS320C54x ons Platform: |
Size: 144384 |
Author:张俊鹏 |
Hits:
Description: Quantization (signal processing)
uniformly and non-uniformily using A and miu law od companding.
simulation using simulink/matlab Platform: |
Size: 10240 |
Author: |
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Description: Companding is essentially a technique for achieving non-uniform quantization. There are basically 2 methods which are most popular in literature.:-A-law companding and u-law companding. These algorithms help in achieving to an extend, compression. The given code shows how to compress a 14-bit code to 8-bit code and its digital implementation using matlab. Please contact by mail if a detailed description of code is needed. Platform: |
Size: 1024 |
Author:shanil |
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Description: 这组代码模拟了整个信号的编码，调制，解调，译码在无线通信，其中包括A-law扩展，PCM和的2PSK调制解调的技术过程。-This collection of codes simulates the whole signal encoding, modulation, demodulation, decoding process in wireless communication, which involves the techniques of A law companding, PCM, and 2PSK modulation and demodulation. Platform: |
Size: 2048 |
Author:songruojia |
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Description: For a file(.wave)
• Find the sampling frequency and the number of bits per sample.
• Re-quantize the samples using the following methods:
o Linear Quantization
o A-Law Companding with A=87.6
o μ-Law Companding with μ=255
• Use a mid-rise quantizer with 4, 5, 6, 7, and 8 bits per sample.
• Obtain the signal-to-quantization noise ratio (SQNR) for each of the
above 15 cases.
• It is required to plot the SQNR (dB) versus the number of bits per
sample for linear quantization, A-law companding, and μ-law
companding. All 3 plots may be on the same figure, if convenient.
-For a file(.wave)
• Find the sampling frequency and the number of bits per sample.
• Re-quantize the samples using the following methods:
o Linear Quantization
o A-Law Companding with A=87.6
o μ-Law Companding with μ=255
• Use a mid-rise quantizer with 4, 5, 6, 7, and 8 bits per sample.
• Obtain the signal-to-quantization noise ratio (SQNR) for each of the
above 15 cases.
• It is required to plot the SQNR (dB) versus the number of bits per
sample for linear quantization, A-law companding, and μ-law
companding. All 3 plots may be on the same figure, if convenient.
Platform: |
Size: 1024 |
Author:mshmsha |
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Description: Implementation and Signal to Quantize noise ratio (SQNR) in Pulse code modulation using Matlab. Also compared A-law, u-law, companding.-Implementation and Signal to Quantize noise ratio (SQNR) in Pulse code modulation using Matlab. Also compared A-law, u-law, companding. Platform: |
Size: 5120 |
Author:ajay |
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Description: pcm编码A律Simulink和MATLAB(PCM in the communication system to complete the voice signal digital function, and its implementation mainly includes three steps to complete: sampling, quantization, coding. The binary representation of time discrete, amplitude discrete and quantized signals is completed respectively. According to CCITT, in order to improve the performance of small signal quantization, using companding non-uniform quantization, there are two suggestions, respectively A law and the law of our country, using the A law, the A law compression complex, often using 13 line method for encoding, using non uniform quantization coding PCM.) Platform: |
Size: 32768 |
Author:面包不面
|
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