Category: CSE Seminar Reports

Introduction to Seminar Topi on Bluetooth A Revolution in Communication Technology:

Mobile phones are one of the most important inventions as it completely revolutionized the communication technology as it was devoid of any wired communication. Data transfer is one of the key functions that an electronic device would do and for these there are a lot of technologies available.

The basic mode of transfer between two devices are by connection a cable between each of the device and sending data, but this mode was ineffective mainly due to one reason that we had to carry that data cable wherever we traveled  Another mode was using data storage devices like CD-ROM, DVD-ROM, pen drives or external hard disks and then came the infra-red technology where we could transfer the data by touching a particular part of the device with each other.

Wireless technology was an instant hit among people as it required no contact between devices. Bluetooth technology is such a wireless technology conceived by a special interest group and forms an association with almost all the major communication company giants. The technology behind Bluetooth is named frequency hopping spread spectrum and is primarily based on radio frequencies.

A real time data transfer will take place using a short area radio frequency band using a small microchip fitted inside the device. We can connect one to one system or one and many systems provided the versions of the Bluetooth enabled microchip embedded in it are the same

Two power levels in Bluetooth:

• Lower power level which is used in most of mobile phones and works in a small area
• Higher power level works in a larger area and is used mainly in companies

Main application areas of Bluetooth:

• Mobile phones, smart devices, laptops, tablets
• Headsets
• Music systems
• Computer peripherals like keyboard, scanner, mouse etc.
• Television and Monitors
• Navigation devices
• Health instruments
• Gaming Consoles

Download  Seminar Report on Bluetooth A Revolution in Communication Technology .

It means sending our using internet protocol. Means sending voice data over IP telephony. It sends information in the digital form rather than circuit packet data. It is better because it avoid charges which are charged in the telephone services. This VIOP is first used in the 1995 by an IT company Vocal Tec. They are better because the facility of the internet to transfer the information from one computer to another computer. To make a VIOP connection we require software, hardware and protocol.

 Software: used may vary from one organization to another, it depends upon their requirements. We require voice processing module for transferring the voice sample and PCM interface to receive the sample and then forward to IP software for processing.

Hardware:we require the perfect hardware that can meet our requirement or organizational need which vary accordingly. We will require two gateways for transmission process, one for differentiating the IP network over telephony and other in case of failure of first.

Protocol:Protocols are required for maintaining the audio signal of the voice. It defines the bandwidth of data. This protocol may be real time protocol or resource reservation protocol.

Advantages and disadvantages: we only require one cable for both data and voice connection. It reduces the cost of installations. It reduces the waste of bandwidth by eliminating the silence speech. They are based on the software so they can upgrade and maintained. It is not best for real time use. If the network is busy due to traffic then communication might be de-graded.

Now the most vendors use VPN to ease the IP telephony network. They set transmission by encrypting the data by the technique cryptography. This also provides security to their data.

Download  Voice over IP PPT .

Introduction to Technical Seminar Topic on Captcha:

Internet use has been increased from last 20 years. Therefore we need to provide security over the internet. For that we may use Captchas. When we sign up for any web site then at last of the sign up, we need to enter the Captchas, Captchas are the combination of the word that are written in jig jag form. We need to enter the same words and box, and then only our sign up is complete. This is use for verifying that we are humans. It is the best method for preventing the bot to use the computer as it is difficult from them to identify such Captchas. There are many types of Captchas are used like:

TEXT Captchas: in this Captchas they ask simple questions from us like if today is Sunday then what was yesterday. This are very easy for humans to solve but not for bots. They also display the words by distorting it.

Graphics Captchas: in this Captchas they display the images like horse, flower and ask from us what they resemble or we need to find such similar objects from many.

Audio Captchas: in this Captchas then they play the word in form of sound. This sound is distorted with other things, now we have to hear the sound and then enter the correct word in the box.

Applications: they are used in the private blogs to prevent from spams.  Used by web site that has registrations. They are also used in emails services.  They are also used by some search engines.

Captchas are created by the program that is programmed for that. Basically they generate random words and that words are distorted to make them complicated to read. These Captchas are easy to read for humans but not for bots.

Download  Technical Seminar Report on Captcha .

Introduction to Latest Seminar Topics on Underwater Sensing Network:

Our earth is covered with 70% or water, so we need the network that can be used to monitor the ground underwater. To this job we need special network that can work under water. For that we create a sensor network that will work inside the water.

Under water networks is used to detect the intensity of vibrations, chemical concentration or heat inside the earth. We setup many stations that are linked together to form sensor network.

They use OWC sensing network or SONAR based sensing network. In SONAR based sensing network they use sound waves that have the capability to travel the longer the distances.

OWC based on underwater sensing: in this light is used for propagation and many base stations are made inside the water. They receive the signal and process them to obtain the final result.  We can also acoustic method for data transmission that can also travel the long distance.

SONAR based: they use sound for navigation and ranger to detect the signals instead of radar as they radiations. They process the signal for processing and extracting information.

LIDAR based:it has the property to measure the scattered light and from that it can find the information and other information like range. They also use same technology like radar technology to find the information from the signal. They are also used by the military services.

Advantages: they don’t require any permission for transmission. They don’t have the problem of radiation as they don’t use radio waves. They are very low, light in weight, don’t require to setup like roads, high bandwidth and very less power consumption.

Applications: they detect the weather conditions like lightning strikes, earthquake, wind etc. monitoring sea animals and plants. They check the behavior of the marine life.

Introduction to Voice over Internet Protocol Seminar Topic:

Now days the technology is growing at a very fast rate this results in the introduction of the VoIP technology which means to transfer the voice over the internet. For this the phone companies transfer the analog signal to digital signal and transfer to the destination and again converts the digital signal to the analog signal.

There is much complexity in this technology such as representation of the data and setting of the connection to the network. The technologies like voice over frame relay are used to transfer the voice as data packets over the internet. We have also introduces a technology internet telephony which is used to transfer the multimedia information on the internet.

            Earlier for carrying voice and data we have to use different lines. Now the technology has increased so much that we can transfer the voice and data over the same line at very low cost. VoIP technology can be used anywhere such as in office, to link the sides of organization over a large distance, in a cooperate intranet and in the internet. In VoIP technology the data is compressed and send over the large distance that shares a bandwidth. The VoIP allows as to do free calling over the internet in the whole world.

Basically this technology gas a three type they are PC to PC, PC to phone and the last is phone to phone. This technology works by buffering the voice signal over the IP gateway and then converted into digital signal and then we compress it and this whole work is done by PCM. It also edits the voice which we send over the internet and correct it. And at the final stage we attach the IP header and then we send the compressed data to the outside of the network.

Download  Voice over Internet Protocol Seminar Abstract .

It is the technology that provides the user facility to make call over the internet without the use of any cell phone or any landline. It has many benefits such as it is cheaper, we can make long distance phone call and receive email amd voice message. It had come into vital use in the recent years because of its very good feature. VoIP converts the analog signal of the phoento the digital signal which is transmitted over the internet.

It is useful to make the phone call free by using some software. It uses ATA (analog telephone adaptor) that allow mobile phone to connect to the computer and then to the internet. IP phone are those which have hardware that can directly connect to the internet.  Computer to computer communication which is the easiest one. Many computers can connect to each other over a long distance over the internet. It is very fast one and based on DSL connection. It is free because there is no charge of this type of communication.

Circuit switching: – It is very old technology in which the connection is made between two points for communication and this connection is called circuit. Suppose you have talk to the person for 5min then the circuit will remain open till the call is cut and as soon as the call is cut the circuit will be closed.

Pocket switching: – in this user can make call by using the internet. In this only the half circuit is come in use like at the of call one is speaking and the other is listening. Circuit connection are not used by data packets, they simply send and receive data according to out need. If we maintain constant connection with internet the speed of the internet will slower.

Download  Research Paper on Voice over Internet Protocol .

Introduction to Voice Portal Seminar Topic:

Voice portal means access to the information by using the speech. It provides technique to the user so that he can access the internet by using telephone. This technology is growing in the market at a very fast rate by using speech recognition technique. Through it the user can access the internet by office, but wireless phone and at home through landline.

It has many advantages that are it can do any task without any visual thing foe example in driving. It can be used to search anything. By it the text information can be easily transmitted to the user. We can give input without the use of any hand or eyes.

Voice user interface: – It the intersection of the human voice and the system. It is the most important thing for voice portal. There are many companies that have started voice communication between employees and customer like LIC which is based on dual tone multi frequency (DTMF). Automated speech recognition allows the user to perform much transaction on their phone only.

Next generation network service (NGN):- It is the next step in the communication world which has three major steps they are voice network, data network and the wireless network. The service provided by the NGN is very secure, reliable, constable and low cost. Voice portal is also a service of NGN which allow the user to access the internet anywhere and at anytime.

It has many benefits they are that it in the risk is very low. Its cost is very low. It provides the user many choices and it also provides the innovative service to the user. It uses the media sever to begin its work which provide very high quality media processing. It is very flexible and it is made for building blocks.

Download  Voice Portal Seminar Report for CSE Students .

Introduction to Voice Morphing Technical Seminar:

Voice morphing means transmission of one voice signal to another. The voice morphing is quite similar to the image morphing in which the texture and the shape changes smoothly until the final image is obtain. Similarly in voice morphing the speech is changes smoothly until the final signal is obtain.

The information and the pitch are main properties of the signal. To extract the information from the signal we have adopted the cepatral approach. It uses dynamic time wrapping to match the pitch of the signal and to convert the waveform of the morphed signal. Voice morphing is very feasible.

Processing:– It is very challenge full and interesting task. The analog form of the morphed signal can be obtained by sampling the acoustic waveform of the transmitted signal. For transferring the signal we split the signal into many frames of waveform and then transmission is applied on the signal.

This process works on the digital signal. Morphing the pitch of the speech is key element of the transmission. If different pitches signal are used then we will going to heard two different voices. For a successful morphing we must exhibits mouth changing of the pitch of the signal. Compression of the signal is done so that it matches when checking is done. The frames are converted into normal waveform at the final stage.

For doing comprehensive analysis we have to follow a algorithm which contain various signal processing methods which includes sampling, Fourier transform and cepatral analysis. This analysis can be categorized in various steps they are, representing of the conversion, which involves the presentation of the signal. Cepatral and pitch analysis of the signal are set to extract the information from the signal. Warping of the transmitted signal and the final step is to re estimate the transmitted signal.

Download  Voice Morphing Technical Seminar .

Introduction to  Seminar Topic on Voice Mail System:

Voice mail or voice message are the electronic message service. Voice message uses routing technology. It was introduced in 1970. Almost everyone in this word have their voice mail account. Voice mail is none of the important service that is used for leaving and retrieving any important message or document. Many companies in this world provide this service like cell phone voice mail, home voice mail and office voice mail service. It allows people to pass much important information from one person to other without being directly contacted.

It works on the digital technology that was introduced in late 70’s.This type of mails is managed by the off-site and on-site system. This makes cell phone very efficient by just passing the information to the person who is not present at that time. Our phone service also provides us the service for the voice mail.

Types of voice mail: – There are many types of voice mail service provided by the companies for different functions. There are mainly two types of voice mail service they are PC technology and by using equipment. PC based voice mail works on computer and severs. It uses software for the connectivity.

That software also integrates the incoming and outgoing of the message. Other type of voice mail service shares commonalities. Home voice mail refers as residential mail and they works on the land line and the incoming caller leaves the message for the receiver. Cell phone voice mail works wirelessly. Equipment voice mail is the business or office voice mails. They are expensive then PC based voice mails.

Future of voice mails: – This type of technology is in very use and at very fast developing rate. Many companies are unifying the various communication systems to make voice mail service and it helps us to decide that which message is important.

Download  CSE Seminar Topic on Voice Mail System .