In my podcasting activity, I used the audacity file and some logitech recording headphones to record my talk on operating systems. Audacity is a free software, cross-platform digital audio editor and recording application. Audacity allows users to import and export WAV, AIFF and MP3 files. Audacity allows to record and play sounds, multitrack mixing and it also has support for multichannel modes with sampling rates up to 96 kHz with 32 bits per sample. The other functions of Audacity include:
Audacity can do some editing via cut, copy, paste (with unlimited undo).
Noise removal.
Amplitude envelope editing.
Audio spectrum analysis using the Fourier transformation algorithm.
The ability to change the audio's pitch without changing the speed.
It has a multiplatform that allows it to work on Windows, Mac OS X, Unix-like systems and among others.
Converting cassette tapes or records into digital tracks by automatically splitting one track into multiple tracks based on silences in the track and the export multiple option.
It also uses the wxWidgets software library to provide a similar graphical user interface on several different operating systems.
The limitations of Audacity are that a plug-in is required for VST (Virtual Studio Technology) plug-ins in Audacity 1.2.x. The other limitations include the fact that Audacity lacks dynamic equalizer controls, real time effects and support for scrubbling. The other limitations of Audacity are that MIDI (Musical Instrument Digital Interface) files can only be loaded visually.
Therefore the file Audacity both has its advantages and disadvantages but I believe that the functions and advantages are good enough to overshadow Audacity's disadvantages. The other good thing about Audacity is that it can be used in different languages therefore enables many people in the world to use it. Therefore the file Audacity can be used to introduce podcasting to people who are not yet familiar with it and increase the use of technology all over the world.
Thursday, August 26, 2010
Monday, August 23, 2010
Converging Technologies 2B
Technological convergence is the tendency for different technological systems to evolve towards performing similar tasks. The examples of converged mobile technology include the internet. The internet has the advantages that it can allow employers and employees to have communication,and easier, faster information for their business procedures. Therefore these employees and employers will be able to reach their target audience easily around the world for business matters.
In converged mobile technologies, there is also the use of messaging convergence which can help employers/employees to send and receive SMS. This system of SMS is provided by several operators who have launched services that combine SMS with Mobile Instant Messaging and presence. The other advantage of messaging convergeed technologies are text-to-landline services where subscribers can send text messages to any landline phone and are charged at standard rates. Therefore certain clients can be enabled to use text-to-landline services to the business companies they want by using their mobile phones to send a message to the business company's landline.
In converged mobile technologies there is also a technology called Multiplay. Multiplay is a marketing term describing the provision of different telecommunication services such as Broadband Internet access, television, telephone and mobile phone service by organisations that traditionally only offered one or two of these services. In Multiplay, the use of dual play service offers a high speed internet which is very fast and efficient to find information.
The advantages of converged mobile technology are that many business people who travel frequently, have given up a desk phone to rely solely on their mobile number. Before employers insist that employees use fewer devices, manufacturers need to address battery life and ergonomics issues for portable devices. Surveys have shown that many people decide to carry around redundant devices than having a single telephone number and a single computing device until the issues of battery life and ergonomics have been resolved in portable devices.
The disadvantages of these mobile converged technologies can also limit business people to carry out all their activities independently using converged mobile technologies. The first disadvantage is that small screens of most devices still limit types of file and data transfer. The other disadvantage is that there are standards that guide applications and technology development and connection. The other disadvantages of converged mobile technologies include:
WAP and SMS are limited to a small number of characters and text.
The use of graphics is limited.
There is less functionality for mobile internet over mobile phones and existing generation of handhelds than for mobile computers (laptops and next generation handhelds).
User interface is often difficult to learn how to use.
There is limited bandwidth.
There is limited roll out of higher bandwidth mobile networks (e.g. 3g networks and wireless broadband networks are predominantly located in cities).
There is the cost of establishing mobile and wireless broadband infrastructure.
Technology constraints of mobile devices (memory, processing power, display capabilities and input methods).
There is the risk of security of data moved across some mobile and wireless networks.
Business investment in hardware and infrastructure is seen as riskier as rapid evolution of mobile and wireless technologies continues.
Therefore converged mobile technologies have many advantages and disadvantages and as a result it is up to business people to whether believe that no matter the disadvantages of converged mobile technologies, the advantages are good enough for them to carry out their business procedures.
In converged mobile technologies, there is also the use of messaging convergence which can help employers/employees to send and receive SMS. This system of SMS is provided by several operators who have launched services that combine SMS with Mobile Instant Messaging and presence. The other advantage of messaging convergeed technologies are text-to-landline services where subscribers can send text messages to any landline phone and are charged at standard rates. Therefore certain clients can be enabled to use text-to-landline services to the business companies they want by using their mobile phones to send a message to the business company's landline.
In converged mobile technologies there is also a technology called Multiplay. Multiplay is a marketing term describing the provision of different telecommunication services such as Broadband Internet access, television, telephone and mobile phone service by organisations that traditionally only offered one or two of these services. In Multiplay, the use of dual play service offers a high speed internet which is very fast and efficient to find information.
The advantages of converged mobile technology are that many business people who travel frequently, have given up a desk phone to rely solely on their mobile number. Before employers insist that employees use fewer devices, manufacturers need to address battery life and ergonomics issues for portable devices. Surveys have shown that many people decide to carry around redundant devices than having a single telephone number and a single computing device until the issues of battery life and ergonomics have been resolved in portable devices.
The disadvantages of these mobile converged technologies can also limit business people to carry out all their activities independently using converged mobile technologies. The first disadvantage is that small screens of most devices still limit types of file and data transfer. The other disadvantage is that there are standards that guide applications and technology development and connection. The other disadvantages of converged mobile technologies include:
WAP and SMS are limited to a small number of characters and text.
The use of graphics is limited.
There is less functionality for mobile internet over mobile phones and existing generation of handhelds than for mobile computers (laptops and next generation handhelds).
User interface is often difficult to learn how to use.
There is limited bandwidth.
There is limited roll out of higher bandwidth mobile networks (e.g. 3g networks and wireless broadband networks are predominantly located in cities).
There is the cost of establishing mobile and wireless broadband infrastructure.
Technology constraints of mobile devices (memory, processing power, display capabilities and input methods).
There is the risk of security of data moved across some mobile and wireless networks.
Business investment in hardware and infrastructure is seen as riskier as rapid evolution of mobile and wireless technologies continues.
Therefore converged mobile technologies have many advantages and disadvantages and as a result it is up to business people to whether believe that no matter the disadvantages of converged mobile technologies, the advantages are good enough for them to carry out their business procedures.
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