Location:
Search - 16bit
Search list
Description: 使用mediastreamer2的g711common.h. unsigned char s16_to_alaw(int pcm_val). 将16bit的原始样本encode 成为8bit的a-law码.-use mediastreamer2 the g711common.h. Unsign ed char s16_to_alaw (int pcm_val). to the original 16bit samples The encode into a 8 bit-law code.
Platform: |
Size: 55296 |
Author: 韩义 |
Hits:
Description: 其中sound.c 用于录音和回放。其中特别需要注意的是:1。目前声卡似乎不能打开全双工，所以如果fd = open("/dev/dsp", O_RDWR) ，则无法录音和回放。只能分别设置RDONLY和WRONLY。即半双工方式。否则，就是在录音的时候可以听见，但是无法回放。分析下来似乎是IIC总线中只分配了一个通道给声卡，或者是只启用了一个通道，所以无法录音和放音同步进行。解决方法就是分别以RDONLY方式打开进行录音和WRONLY方式打开进行放音。
Sound1.c用于将录音保存在test.wav文件中，并利用cast test.wav > /dev/sound/dsp回放文件。此处需要注意的是，录音频率必须是44100才能正确回放。否则就会出现类似快放的效果。分析应该是cast方式利用了dsp的默认播放频率44100，所以如果录音的时候低于这个频率，这放的时候就会快放。
此外，设置采样率的时候必须设置成16bit，否则会提示出错。原因尚不知道，估计是与声卡有关。
Platform: |
Size: 3072 |
Author: 杨浩 |
Hits:
Description: 凌阳16位单片机应用基础 -Sunplus 16-bit single-chip application infrastructure
Platform: |
Size: 9759744 |
Author: 彭昌权 |
Hits:
Description: SD卡和AIC23数字音频输出实验, FreeDev Audio Dsp Board采用了TI公司的TVL320AIC23
1、控制接口使用I2C，Quartus中将CS置低（器件地址0011010）。 2、数字音频接口使用了组件FreeDev_aic23,有三种测试和应用
模式，中断结合DMA方式能在NIOS II中采集和发送数据。中断信号 产生于模块中FIFO缓冲区的半满信号，读取数据端口自动清除中断
请求信号。 3、I2C IP 和FreeDev_aic23 IP分别在Quartus 工程目录中 4、SD卡读写通过SD_DAT0、SD_CLK、SD_CMD三个PIO信号线用软件 控制时序。 5、该范例读SD卡数据，通过DMA将Buffer数据送到FreeDev_aic23的
FIFO中实现数据播放。 6、SD卡中的数据必须是以48K*16bit保存的采样数据。数据可以通过SD读卡器写入。
Platform: |
Size: 13312 |
Author: HuFengzhang |
Hits:
Description: AD7788 16ｂｉｔ A/D转换程序
AD7788 16ｂｉｔ A/D转换程序-AD7788 16bit A/D conversion process AD7788 16bit A/D conversion process
Platform: |
Size: 1024 |
Author: q |
Hits:
Description: ADI公司的200MPS高速16BIT AD的源码，注意VREF和VDD分开。-ADI
Platform: |
Size: 1024 |
Author: KEVIN |
Hits:
Description: DE2板子附带的SRAM IPCORE 有兴趣的朋友可以下载-DE2 board attached SRAM IPCORE friends who are interested can download
Platform: |
Size: 11264 |
Author: huang |
Hits:
Description: 陀螺仪的驱动程序,用ATMEGA16编写,使用AD7715做AD采集,16BIT精度.-Gyroscopes driver, using ATmega16 prepared using AD7715 to do AD Acquisition, 16BIT accuracy.
Platform: |
Size: 11264 |
Author: 邵亮 |
Hits:
Description: Easy-to-Use, Ultra-Tiny, Differential, 16-Bit Delta Sigma ADC With I2C Interface
The LTC2453 is an ultra-tiny, fully differential, 16-bit, analog-to-digital converter. The LTC2453 uses a single 2.7V to 5.5V supply and communicates through an I2C interface. The ADC is available in an 8-pin, 3mm x 2mm DFN package. It includes an integrated oscillator that does not require any external components. It uses a delta-sigma modulator as a converter core and has no latency for multiplexed applications. The LTC2453 includes a proprietary input sampling scheme that reduces the average input sampling current several orders of magnitude lower than conventional delta-sigma converters. Additionally, due to its architecture, there is negligible current leakage between the input pins.
Platform: |
Size: 273408 |
Author: Lee Ka Wing |
Hits:
Description: FIFO电路(first in，first out)，内部藏有１６ｂｉｔ×１６ｗｏｒｄ的Dual port RAM，依次读出已经写入的数据。因为不存在Address输入，所以请自行设计内藏的读写指针。由FIFO电路输出的EF信号(表示RAM内部的数据为空)和FF信号(表示RAM内部的数据为满)来表示RAM内部的状态，并且控制FIFO的输入信号WEN(写使能)和REN(读使能)。以及为了更好得控制FIFO电路，AEF(表示RAM内部的数据即将空)信号也同时输出。-FIFO circuit (first in, first out), internal possession of 16bit × 16word the Dual port RAM, in order to read out has been written into the data. Address because there is no input, so please read and write their own design containing the pointer. By the FIFO circuit output signal of the EF (express the internal data RAM is empty) and the FF signal (that the internal data RAM or above) to express the state of internal RAM and FIFO control of the input signal WEN (Write Enable) and REN ( Reading-enabled). As well as a control in order to better FIFO circuit, AEF (express the internal data RAM is about to air) signal output at the same time.
Platform: |
Size: 1024 |
Author: 史先生 |
Hits:
Description: PIC 16bit 24H系列单片机的bootloader源码， -PIC 16bit 24H Series MCU bootloader source,
Platform: |
Size: 2028544 |
Author: 叶子 |
Hits:
Description: PIC 16bit 30F系列单片机的bootloader源码， -PIC 16bit 30F Series MCU bootloader source,
Platform: |
Size: 1961984 |
Author: 叶子 |
Hits:
Description: PIC 16bit 33F系列单片机的bootloader源码， -PIC 16bit 33F Series MCU bootloader source,
Platform: |
Size: 2113536 |
Author: 叶子 |
Hits:
Description: AD7789 16Bit/24bit的ADC IC，資料讀取源碼。-AD7789 16Bit/24bit the ADC IC, information read the source code.
Platform: |
Size: 1024 |
Author: keny |
Hits:
Description: 16BIT的跑馬燈由快變賣由蔓變快-The Marquee 16Bit sold by the fast spread faster by the
Platform: |
Size: 1024 |
Author: leoposem |
Hits:
Description: 这是一个wince平台，将每象素为16bitRGB的图像编码成jpeg文件的代码；可以支持的分辨率为176*144,320*240,576*480-This is a wince platform for each pixel of the image coding 16bitRGB into a jpeg file code can support a resolution of 176* 144,320* 240,576* 480
Platform: |
Size: 123904 |
Author: 张流 |
Hits:
Description: SUNPLUS(凌阳）MP4方案DEMO程序，主芯片是GPL162003/GPL162002,16BIT,96MHZ.-SUNPLUS (Sunplus) MP4 program DEMO procedures, the main chip is GPL162003/GPL162002, 16BIT, 96MHZ.
Platform: |
Size: 2207744 |
Author: |
Hits:
Description: SUNPLUS(凌阳）MP4方案DEMO程序，主芯片是GPL162003/GPL162002,16BIT,96MHZ.这是带OS版本哦-SUNPLUS (Sunplus) MP4 program DEMO procedures, the main chip is GPL162003/GPL162002, 16BIT, 96MHZ. This is with OS version of Oh
Platform: |
Size: 3448832 |
Author: |
Hits:
Description: SUNPLUS(凌阳）主芯片GPL162003 /GPL162002,16BIT,96MHZ 用户编程手册。-SUNPLUS (Sunplus) main chip GPL162003/GPL162002, 16BIT, 96MHZ user manual programming.
Platform: |
Size: 8862720 |
Author: |
Hits:
Description: CBM2090单片8BIT 16BIT共板原理图-CBM2090 monolithic total 8BIT 16BIT board schematics
Platform: |
Size: 120832 |
Author: tony |
Hits:
«
1
2
3
4
5
6
78
9
10
11
12
...
26
»