There
are many different sound formats. Some being; WAV, MP3, MID, OSS, WMA and AIP. The
most popular formats to record digital audio are WAV, BWF and AIFF. For digital
recordings that might be put onto the internet or to listen to music it is
recommended that the format be MP3 which is recognised by a majority of audio
file playing software. MP3 is also the most recognised audio format for
different mobile devices.
The definition of Sound is ‘a vibration in a medium such as air, water and the earth’ and a waveform is a visual representation of sound and is commonly shown in a curve. Shown on a waveform, the wavelength is the distance between each crest of the wave. The wavelength is also how we know the frequency (Hz/MHz/KHz). A longer wavelength means a lower frequency and a shorter wavelength means a higher frequency. The amplitude of sound can be defined as the maximum deviation of an alternating current to its average value. Stereo is the creation of sound using more than one independent audio channels to recreate natural hearing whereas Mono has audio in one channel. Stereo is used almost exclusively now due to the improved audio quality. Mono is less expensive that Stereo and only requires basic equipment so is easy to record however Stereo sound is used on most outlets that people hear sound from such as Music players (MP3, Mobiles), in movies and TV and on FM radio stations. Much like Mono, Analogue has almost been replaced by Digital. Analogue sound is created by changing the soundwaves into electrical signals so is used for vinyls however they can’t be recorded over like digital sounds. Digital sounds are audio written onto computers and formats such as CDs and are often used for radio stations. There are many benefits for Digital sound which is why most people use that format now for example, digital sounds travel fast because of its nature and wavelengths and they can be copied over and over again so can be put onto decides like MP3s and mobile phones. An advantage of Analogue sounds is that they can easily be archived.
The definition of Sound is ‘a vibration in a medium such as air, water and the earth’ and a waveform is a visual representation of sound and is commonly shown in a curve. Shown on a waveform, the wavelength is the distance between each crest of the wave. The wavelength is also how we know the frequency (Hz/MHz/KHz). A longer wavelength means a lower frequency and a shorter wavelength means a higher frequency. The amplitude of sound can be defined as the maximum deviation of an alternating current to its average value. Stereo is the creation of sound using more than one independent audio channels to recreate natural hearing whereas Mono has audio in one channel. Stereo is used almost exclusively now due to the improved audio quality. Mono is less expensive that Stereo and only requires basic equipment so is easy to record however Stereo sound is used on most outlets that people hear sound from such as Music players (MP3, Mobiles), in movies and TV and on FM radio stations. Much like Mono, Analogue has almost been replaced by Digital. Analogue sound is created by changing the soundwaves into electrical signals so is used for vinyls however they can’t be recorded over like digital sounds. Digital sounds are audio written onto computers and formats such as CDs and are often used for radio stations. There are many benefits for Digital sound which is why most people use that format now for example, digital sounds travel fast because of its nature and wavelengths and they can be copied over and over again so can be put onto decides like MP3s and mobile phones. An advantage of Analogue sounds is that they can easily be archived.
Digital
sounds are suitable for interactive media products like websites, films,
trailers, games and television. Digital sound is effective in interactive media
products because sound is used for communication and portraying the tone and
mood. Sound in TV shows and things such as movies can provoke an emotion in the
audience that without the sound might not have been as effective(Example: Thisscene in The Vampire Diaries). Sound is particularly important in movie
trailers because the aim is to evoke an emotion or a reaction using short clips
of the movie so adding an audio clip in the background is a good way to make
the trailer more interesting (Example: The Avengers: Age of Ultron trailer).
Sound can also be useful on websites to engage the audience and keep them
interested in the site. The sound can also add to the website if it has a
particular theme (Example: This website).
No comments:
Post a Comment