Taking a Look at Audio Compression

Abstract—Abundant use of electronic communication has paved way for transmitting information securely. Security has its importance and application in wide area. It is a measure of human negligence, in desire to enclose the latest technological inventions. This measure may have drastic effect on human conception to the positioning of application, which needs a determined concern in terms of security. Audio steganography is the science of hiding some secret text or audio files in a host audio file by using different algorithms to retrieve the original data. The main challenge in audio steganography is to obtain high payload and efficiency.

“In lossless compression, an exact reproduction of the original sound source can be crated; all original sound can be recovered”.(Bauer, 2014). So most people would use a WAV or AIFF file to record and compress sound. This makes music recording simpler because most people myself included, want to capture all of the sound that I am recording just in case I want to change something about the original recording that I did not like. With the lossy file large amounts of data is not is lost and unable to be recovered. If you are a live recording of an event you might consider using a WAV file to ensure that all information is

Table I displays six solid binary images along with their corresponding compression ratios. On considering Run-Length coding, the alternative encoding scheme produces better performance than the other encoding scheme. On an average, the proposed algorithm performs well on comparison with the standard Huffman coding algorithm by approximately 1.58%.

Find one article or web site related to your course and how methods are being used to implement audio files (in any

The 21st century has given us a whole new way to communicate with other people. We now have mobile phones that can do just about anything. We can make instant calls to anywhere in the world, send e-mails and text messages, and access social media to connect with friends and family. All of these methods of communications are in the palm of our hand. It still costs money to have this luxury but we no longer have to pay per word or minute anymore. Because of the many benefits of cell phones, they have become one of the most relied on pieces of technology ever

One of the most difficult aspects of hearing loss is that most hearing aids that can help improve your hearing abilities

There are two types of HPDs are available i.e. passive HPDs and active HPDs. In passive hearing protection, devices provided constant and steady noise attenuation while active hearing protection devices give communication facility, noise reduction, and amplitude technique. The conventional passive HPDs reduce the signal power by a fixed amount and do not consider the decibel level and also do not consider either to be speech signal or the noise. This type of earmuffs and earplugs interfere the speech communication. There are two types technology for active hearing aids are presented in the market i.e. analog and digital. The digital signal processing (DSP) provides some advantages over analog processing such as speed, accuracy, easy to carry out, and flexibility. Although so many years have passed, first implemented the DSP algorithms in the HPDs, the user is still not satisfied with the hearing aids and still facing disadvantages, the main reason is these devices unable to simulate with the human auditory system properly

Lossless compression is when you compress the file and expect it to be the same as before, so the user may want

Research Question: Why might people say that compression in music is more detrimental than beneficial?

MP3 is a small compressed format that allows music to be downloaded quickly with very little sacrifice in the sound quality. Moving Picture Experts

Hi-Res audio is just a fancy way of saying that the music is at a high resolution to provide the nuances of sound that the artist intended. Enjoying high-quality audio is something that can be done at home and which only requires a minimal adding to of the components already found in your home theater in order to enjoy a superior quality sound that will make new titles, as well as old favorites sound impressive.

Compression is the process often used to make music appear to be louder without increasing its peak amplitude. By compressing the loudest signals, it becomes possible to increase the overall volume of a signal without exceeding the limits of a reproduction device or medium. This process has created what many call the loudness wars.

Description of Assignment: To figure out application of waveform coding techniques for digital audio transmission and digital audio recording.

At the year 2000, Bose had developed a consumer-friendly and award-winning version of aviation noise-cancelling headphones. The Quiet Comfort noise-cancelling headphone boomed and was made popular in the market. Bose took a slick and informative approach in TV advertising, and also

This division can be performed up to many levels. It captures not only notion of frequency content but also temporal content. Wavelets provide a mathematical way of encoding information in such a way that it is layered according to level of detail. DWT is more computationally efficient than other transformations because of its excellent localization properties. Wavelets are capable of complete lossless reconstruction of image[6].