Matsig is an object-oriented signal class library for MATLAB 6.5 and later. It implements a signal class, simplifying operations and manipulations common in AudIO signal processing and speech processing
s3c2410 ads下的測試程序移植到 iar ewarm v5.2；包括
Please select function :
0 : Please input 1-14 to select test
1 : Real time clock display
2 : 4 key array test
3 : Buzzer test
4 : ADC test
5 : IIC EEPROM test
6 : Touchpanel test
7 : 3.5# TFT LCD 240*320 test
8 : UDA1341 play AudIO test
9 : UDA1341 record AudIO test
10 : IRDA test
11 : SD Card write and read test
12 : COM port ( UART2 ) test
With the advent of multimedia, digital signal processing (DSP) of sound has emerged from the shadow of bandwidth-limited speech processing. Today, the main appli- cations of AudIO DSP are high quality AudIO coding and the digital generation and manipulation of music signals. They share common research topics including percep- tual measurement techniques and analysis/synthesis methods. Smaller but nonetheless very important topics are hearing aids using signal processing technology and hardware architectures for digital signal processing of AudIO. In all these areas the last decade has seen a significant amount of application oriented research.
A few short years ago, the applications for
video were somewhat confined—analog was
used for broadcast and cable television, VCRs,
set-top boxes, televisions and camcorders.
Since then, there has been a tremendous and
rapid conversion to digital video, mostly based
on the MPEG-2 video compression standard.
Today, in addition to the legacy DV,
MPEG-1 and MPEG-2 AudIO and video com-
pression standards, there are three new high-
performance video compression standards.
These new video codecs offer much higher
video compression for a given level of video
quality.
MPEG-2 has 7 distinct parts as well. The first part is the Systems section which defines the container format and the Transport Streams that are designed to carry the digital video and AudIO over ATSC and DVB. The Program Stream defines the container format for lossy compression on optical disks, DVDs and SVCDs.
