Design and Implementation of Audio Process System Based on DSP

2014 ◽  
Vol 945-949 ◽  
pp. 1752-1755
Author(s):  
Chui Xin Chen ◽  
Yang Hong Mao
Keyword(s):  
Real Time ◽  
Digital Signal Processor ◽  
High Speed ◽  
Audio Signal ◽  
Reference Value ◽  
Digital Signal ◽  
Real Time Processing ◽  
Audio Processing ◽  
Time Processing ◽  
Process System

The real-time processing for the input analog audio signal, audio processing program is proposed based on DSP. The system use FFT algorithm as the core, first, the input analog audio signal is sampled and A/D conversion using TLV320AIC23, and then use high speed digital signal processor to make real-time processing for the signal. Theoretical and experimental results show that the system can meet the design requirements, it has the advantage of high real-time and simple structure. The system has a good application and reference value for the development and design of data collecting and remote monitoring.

A Digital Signal Processing Module for Time-Division Multiplexed Microcalorimeter Arrays

2013 ◽  
Vol 23 (3) ◽  
pp. 2500305-2500305 ◽  
Author(s):  
H Tan ◽  
M Walby ◽  
W Hennig ◽  
W Warburton ◽  
P Grudberg ◽  
...  
Keyword(s):  
Real Time ◽  
Digital Signal ◽  
Real Time Processing ◽  
Time Processing ◽  
The Core ◽  
Field Programmable ◽  
Processing Module ◽  
Time Division ◽  
Signal Processing Module ◽  
Processor Board

We have developed a digital signal processing module for real time processing of time-division multiplexed data from SQUID-coupled transition-edge sensor microcalorimeter arrays. It is a 3U PXI card consisting of a standardized core processor board and a daughter board. Through fiber-optic links on its front panel, the daughter board receives time-division multiplexed data (comprising error and feedback signals) and clocks from the digital-feedback cards developed at the National Institute of Standards and Technology. After mixing the error signal with the feedback signal in a field-programmable gate array, the daughter board transmits demultiplexed data to the core processor. Real-time processing in the field-programmable gate array of the core processor board includes pulse detection, pileup inspection, pulse height computation, and histogramming into on-board spectrum memory. Data from up to 128 microcalorimeter pixels can be processed by a single module in real time. Energy spectra, waveform, and run statistics data can be read out in real time through the PCI bus by a host computer at a maximum rate of ~100 MB/s. The module's hardware architecture, mechanism for synchronizing with NIST's digital-feedback, and count rate capability are presented.

Real-Time Processing for High Speed Data Stream over Large Scale Data

2012 ◽  
Vol 35 (3) ◽  
pp. 477-490 ◽  
Author(s):  
Kai-Yuan QI ◽  
Zhuo-Feng ZHAO ◽  
Jun FANG ◽  
Qiang MA
Keyword(s):  
Real Time ◽  
Data Stream ◽  
High Speed ◽  
Large Scale ◽  
Real Time Processing ◽  
Time Processing ◽  
Large Scale Data ◽  
High Speed Data ◽  
Scale Data
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