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Description: ADPCM(Adaptive Differential Pulse Code Modulation)，是一种针对 16bits( 或8bits或者更高) 声音波形数据的一种有损压缩算法,它将声音流中每次采样的 16bit 数据以 4bit 存储,所以压缩比 1:4. 而且压缩/解压缩算法非常简单,所以是一种低空间消耗，高质量高效率声音获得的好途径。保存声音的数据文件后缀名为 .AUD 的大多用ADPCM 压缩。-ADPCM (Adaptive Differential Pulse Code Modulation), is a response to 16bits (or 8 bits or higher) voice waveform data of a lossy compression algorithm, it will sound each stream sampling 16bit data to 4bit storage, so the compression ratio 1:4. and compression/decompression algorithm is very simple, there is a low space consumption, high-quality sound and efficient way to get good. Preservation of the voice data file is named suffix. AUD mostly using ADPCM compression.
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Size: 2048 |
Author: 王磊 |
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Description: adc sample programme for AT89c5131
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Size: 31744 |
Author: user |
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Description: 产生8bits的0/1所有组合，用于对所有能的组合进行统计，产生各种统计数据-8bits have the 0/1 in all combinations for a combination of all statistics can produce a variety of statistical data
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Size: 12288 |
Author: 万杰 |
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Description: 这段代码可以实现图像由256色彩色图转化为灰度图像-This code can make a image from 8bits color to gray.
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Size: 2845696 |
Author: xiejing |
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Description: this a psnr estimator on 8bits image-this a psnr estimator on 8bits image
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Size: 31744 |
Author: oczekp |
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Description: ADPCM(Adaptive Differential Pulse Code Modulation)，是一种针对 16bits( 或8bits或者更高) 声音波形数据的一种有损压缩算法,它将声音流中每次采样的 16bit 数据以 4bit 存储,所以压缩比 1:4. 而且压缩/解压缩算法非常简单,所以是一种低空间消耗，高质量高效率声音获得的好途径。保存声音的数据文件后缀名为 .AUD 的大多用ADPCM 压缩-ADPCM (Adaptive Differential Pulse Code Modulation), is one for 16bits (or 8bits or higher) voice waveform data of a lossy compression algorithm, it will sound stream data for each sampling 16bit 4bit storage, so the compression ratio 1:4. and compression/decompression algorithm is very simple, it is a low space consumption, high quality sound and efficient way to get good. Save the sound data file extension name. AUD mostly use ADPCM compression
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Size: 1024 |
Author: zhang |
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Description: G.711使用64Kbps的带宽，可将14bits转换成8bits。目前G.711有两个编码方式，A-law以及Mu-law。-G.711 defines two main compression algorithms, the µ -law algorithm (used in North America & Japan) and A-law algorithm (used in Europe and the rest of the world). Both are logarithmic, but A-law was specifically designed to be simpler for a computer to process. The standard also defines a sequence of repeating code values which defines the power level of 0 dB.
The µ -law and A-law algorithms encode 14-bit and 13-bit signed linear PCM samples (respectively) to logarithmic 8-bit samples. Thus, the G.711 encoder will create a 64 kbit/s bitstream for a signal sampled at 8 kHz.[5]
G.711 μ-law tends to give more resolution to higher range signals while G.711 A-law provides more quantization levels at lower signal levels. When using μ-law G.711 in networks where suppression of the all 0 character signal is required, the character signal corresponding to negative input values between decision values numbers 127 and 128 should be 00000010 and the value at the decoder output is-
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Size: 915456 |
Author: coco |
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Description: stereo matching using the 8bits bmp images get a better result.we apply the relationship method to get the matching points.This file has inculded the standard test images.
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Size: 1986560 |
Author: 福韩 |
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Description: A timer1 version of a PWM encoder. All flags are set for the PIC18 family. With a 20MHz crystal we should be able to achieve at least 450KHz @ 8bits.-A timer1 version of a PWM encoder. All flags are set for the PIC18 family. With a 20MHz crystal we should be able to achieve at least 450KHz @ 8bits.
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Size: 1024 |
Author: mahedros87 |
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Description: 1. 设有8bits符号数X存于外部RAM单元，按以下方式计算后的结果Y也存于外部RAM单元，请按要求编写程序。
2. 利用51系列单片机设计一个24小时制电子时钟，电子时钟的时、分、秒数值分别通过P0、P1、P2端口输出（以压缩BCD码的形式）。P3.0为低电平时开始计时，为高电平时停止计时。
-(1) has a number of 8bits symbol X is stored in external RAM unit, calculated as follows the results of Y is also stored in external RAM unit, the programming required. 2 51 series single-chip design of a 24-hour electronic clock, electronic clock, minute, seconds values, respectively, by P0, P1, P2 port output (in the form of compressed BCD code). P3.0 is low, the start time, stop the clock is high.
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Size: 146432 |
Author: 大田 |
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Description: 设有8bits符号数X存于外部RAM单元，按以下方式计算后的结果Y也存于外部RAM单元，请按要求编写程序。
-With 8 bits symbol number X stored in external RAM unit, according to the following way calculated results Y also exist in external RAM unit, please write a program as required.
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Size: 1024 |
Author: 张博 |
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Description: 用查表法实现了8bits和16bits的crc算法-8bits and 16bits crc algorithm with a look-up table method
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Size: 3072 |
Author: huang |
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Description: 小蜜蜂游戏源码,为8位机版小蜜蜂修改版,适合初学者-bee game source code,a modi from 8bits player，suit for newer
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Size: 2489344 |
Author: 江慧强 |
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Description: AL422B是一种视频帧存储器，存储容量为384k×8bits，存储器结构为先进先出（FIFO），其接口非常简单。下面来介绍它的性能特点及应用领域-AL422B is a video frame memory, storage capacity of 384k × 8bits, memory structure FIFO (FIFO), its interface is very simple. Here to introduce its performance characteristics and applications
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Size: 2048 |
Author: yang |
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Description: 一种基于红外图像分层处理及动态压缩的 DDE 算法。该算法先将原始14bits 红外图像数据信息中的大动态低频背景和小动态高频细节进行分离提取，并分别对提取的细节层和背景层进行相应的灰度增强和灰度抑制处理，再调整和压缩各图层的动态范围并最终合成 8bits图
像。实验结果表明，该算法能较好地保留并突出原始红外图像中的边缘和细节信息，达到了预期设计的目标。
-put forward a DDE algorithm based on hierarchical processing and dynamic compression of infrared image． At first，this algorithm dissociates the background ( with wide
dynamic and low frequency) and the detail ( with narrow dynamic and high frequency) in the data information ( 14 bits) of original infrared image，and pick up them respectively． Then，it enhances the
gray of details layer and restrains the gray of background layer，and readjusts and compresses dynamic range of each layer． Finally，it composites output image ( 8 bits) ． The experimental results show that the proposed algorithm can retain detail information and edges in original infrared image and carry the
purpose of design．
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Size: 882688 |
Author: DaBao |
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Description: 用Verilog语言模拟的8位优先编码器，可作为课堂作业实用，是完整工程代码-Using Verilog language simulation of the 8 priority encoder, can be used as a classroom operation, is a complete code
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Size: 102400 |
Author: ww |
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Description: 一个1MHz的FIR低通滤波器。
① 时钟信号频率16MHz;
② 输入信号位宽8bits，符号速率16MHz；(A 1MHz FIR low pass filter.
The frequency of a clock signal 16MHz;
The width of the input signal 8bits, the symbol rate of 16MHz)
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Size: 10240 |
Author: stroller |
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Description: 设计一个 1MHz 的 FIR 低通滤波器。 要求：
① 时钟信号频率 16MHz;
② 输入信号位宽 8bits，符号速率 16MHz
③ 要求在 Matlab 软件中进行 FIR 滤波器浮点和定点仿真，并确定 FIR 滤波器抽头系数
④ 写出测试仿真程序。(Design a 1MHz FIR low pass filter.
Requirements:
(1) clock signal frequency 16MHz;
(2) input signal bit width of 8bits, symbol rate of 16MHz
Requirements in Matlab FIR filter floating-point and fixed-point simulation, and determine the FIR filter tap coefficient
(4) write the test simulation program.)
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Size: 342016 |
Author: 羊羊驼 |
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Description: 要求对一段数据序列进行哈夫曼编码，使得平均码长最短，输出各元素编码和编码后的数据序列。
①组成序列的元素是[0-9]这10个数字，每个数字其对应的4位二进制数表示。比如5对应0101，9对应1001。
②输入数据序列的长度为256。
③先输出每个元素的编码，然后输出数据序列对应的哈夫曼编码序列。(Design a 1MHz FIR low pass filter.
Huffman coding is required for a section of data sequence to make the average code length the shortest, and the output of each element encoding and the encoded data sequence.
The elements of the sequence are the 10 Numbers [0-9], each of which corresponds to a 4-bit binary representation.
Let's say 5 is equal to 0101, and 9 is equal to 1001.
The length of the input data sequence is 256.
First output the encoding of each element, and then output the data sequence corresponding Huffman coding sequence.
Requirements:
(1) clock signal frequency 16MHz;
(2) input signal bit width of 8bits, symbol rate of 16MHz
Requirements in Matlab FIR filter floating-point and fixed-point simulation, and determine the FIR filter tap coefficient
(4) write the test simulation program.)
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Size: 182272 |
Author: 羊羊驼 |
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