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The purpose of this lab is to familiarize students with the DSP development workstation in the signal processing lab by examining sampling, analysis, and reconstruction of continuous-time signals. Specifically, we will first look at sampling/reconstruction of continuous-time signals. We will then examine time- and frequency-domain displays. Finally, we will examine the importance of sampling frequency and its effects on aliasing.

Dsp workstation hardware list&Setup

Hardware: dell dimension 4550 pc with a pentium 4 microprocessor

    • Runs software to design/implement digital filters
    • Controls data acquisition and analysis
    • Communicates with the DSP board and/or soundcard
    • Edits/assembles/downloads code for the DSP chip on the DSP board

National instruments speedy-33

A self-contained, high-performance, programmable DSP board for signal processing applications. TheSPEEDY-33 comes equipped with a Texas Instruments DSP for high speed DSP calculations and Analog to Digital (A/D) and Digital toAnalog (D/A) converters for interaction with the outside world.

  • Specifications of the NI SPEEDY-33 are as follows:
    • Bundled with LabVIEW DSP programming environment
    • Includes a Texas Instruments VC33 floating point DSP processor
    • 13-ns Instruction Cycle Time
    • 150 Million Floating-Point Operations Per Second (MFLOPS)
    • 75 Million Instructions Per Second (MIPS)
    • USB interface used for connection to the PC
    • 16-bit stereo audio codec with two on-board microphones
    • Software-controlled adjustable sampling rate (8, 18, 24, 36, 44.1, and 48 kHz)
    • Eight memory-mapped LED’s and eight memory-mapped general purpose switch inputs
    • Serial Port, CompactFlash interface

National Instruments Speedy 33

Condenser microphone.

Personal headphone set with individual volume control.

Black 3 prong headphone booster.

Audio cable to go from the computer sound card to the microphone.

Male to male adapter cable.

Alternative option to NI Speedy 33:

Texas instruments 6711 dsk

  • Digital Signal Processing Board with PCM3003 Audio Daughter Card

The DSP board is responsible for the high-speed DSP calculations and the daughter card controls the A/Dand D/A conversion between the DSP board and the outside world.

  • Specifications of the DSP board and daughter card are as follows:
    • TI TMS320C6711 floating point DSP processor
    • Software-controlled adjustable sampling rate (8, 9.6, 12, 16, 24, and 48 kHz)
    • 16-bit stereo audio codec with two on-board microphones. A lowpass anti-aliasing filter at the input channel with a fixedcutoff frequency = 24 kHz

Software:

The software used in the lab is National Instruments LabVIEW DSP Module ; a block diagram-based graphical programming package for digital signal processing thatwill be used for: data acquisition, time domain data display, frequency domain calculation and display, filter implementation,convolution and correlation calculations, speech/signal modeling, and real-time filtering. Using LabVIEW DSP Module in conjunctionwith the LabVIEW Digital Filter Design Toolkit, the DSP board and the rest of the lab equipment will not only allow students toperform data acquisition, analysis, and filtering, it will also give them the ability to listen to the filtered output.

Questions & Answers

can someone help me with some logarithmic and exponential equations.
Jeffrey Reply
sure. what is your question?
ninjadapaul
20/(×-6^2)
Salomon
okay, so you have 6 raised to the power of 2. what is that part of your answer
ninjadapaul
I don't understand what the A with approx sign and the boxed x mean
ninjadapaul
it think it's written 20/(X-6)^2 so it's 20 divided by X-6 squared
Salomon
I'm not sure why it wrote it the other way
Salomon
I got X =-6
Salomon
ok. so take the square root of both sides, now you have plus or minus the square root of 20= x-6
ninjadapaul
oops. ignore that.
ninjadapaul
so you not have an equal sign anywhere in the original equation?
ninjadapaul
Commplementary angles
Idrissa Reply
hello
Sherica
im all ears I need to learn
Sherica
right! what he said ⤴⤴⤴
Tamia
what is a good calculator for all algebra; would a Casio fx 260 work with all algebra equations? please name the cheapest, thanks.
Kevin Reply
a perfect square v²+2v+_
Dearan Reply
kkk nice
Abdirahman Reply
algebra 2 Inequalities:If equation 2 = 0 it is an open set?
Kim Reply
or infinite solutions?
Kim
The answer is neither. The function, 2 = 0 cannot exist. Hence, the function is undefined.
Al
y=10×
Embra Reply
if |A| not equal to 0 and order of A is n prove that adj (adj A = |A|
Nancy Reply
rolling four fair dice and getting an even number an all four dice
ramon Reply
Kristine 2*2*2=8
Bridget Reply
Differences Between Laspeyres and Paasche Indices
Emedobi Reply
No. 7x -4y is simplified from 4x + (3y + 3x) -7y
Mary Reply
is it 3×y ?
Joan Reply
J, combine like terms 7x-4y
Bridget Reply
im not good at math so would this help me
Rachael Reply
yes
Asali
I'm not good at math so would you help me
Samantha
what is the problem that i will help you to self with?
Asali
how do you translate this in Algebraic Expressions
linda Reply
Need to simplify the expresin. 3/7 (x+y)-1/7 (x-1)=
Crystal Reply
. After 3 months on a diet, Lisa had lost 12% of her original weight. She lost 21 pounds. What was Lisa's original weight?
Chris Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
China
Cied
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
Porter
many many of nanotubes
Porter
what is the k.e before it land
Yasmin
what is the function of carbon nanotubes?
Cesar
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
AMJAD
preparation of nanomaterial
Victor Reply
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
AMJAD
what is system testing
AMJAD
what is the application of nanotechnology?
Stotaw
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
Azam
anybody can imagine what will be happen after 100 years from now in nano tech world
Prasenjit
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
Azam
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
Prasenjit
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
Damian
silver nanoparticles could handle the job?
Damian
not now but maybe in future only AgNP maybe any other nanomaterials
Azam
can nanotechnology change the direction of the face of the world
Prasenjit Reply
At high concentrations (>0.01 M), the relation between absorptivity coefficient and absorbance is no longer linear. This is due to the electrostatic interactions between the quantum dots in close proximity. If the concentration of the solution is high, another effect that is seen is the scattering of light from the large number of quantum dots. This assumption only works at low concentrations of the analyte. Presence of stray light.
Ali Reply
the Beer law works very well for dilute solutions but fails for very high concentrations. why?
bamidele Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Fundamentals of digital signal processing lab. OpenStax CNX. Jan 03, 2006 Download for free at http://cnx.org/content/col10303/1.5
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