Demystifying Audio Formats: What Format In The Event You Record In?

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• Publié par: amosmickey8
• Publié le: 02 avril 2016
• Nombre de lectures: 5
• Licence : En savoir +
  Paternité, partage des conditions initiales à l'identique
• Langue: English

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demystifying audio formats what format There are actually an array of formats, like wav, mp3, aiff, wma etc. To understand the real difference between various formats, we have to first understand terms compressed and uncompressed formats. UncompressedDjFormats Uncompressed audio formats are bulky files and fill up considerable space in your hard drive or storage drive. The main advantage of uncompressed audio formats is the fact that expertise of the digital audio remains intact, because it is unchanged. It offers the exact same quality; regardless of how often times you process or re encode it. Compressed Audio Format Compressed audio formats compress digital audio data, resulting in smaller files. You can release valuable space on your hard disk by utilizing compressed audio formats. Compressed audio formats are further categorized into 2 two groups: Lossless Compressed Audio Formats These audio formats compress digital audio data, but there is however no loss in data or degradation of audio quality during the compression process. The very best example of such format is flac. Lossy Compressed Audio Formats These audio formats compress digital audio data, but are acknowledged to eliminate certain information and frequencies to lower the file size. lossy compressed audio formats causes degradation in audio quality. The main difference in audio quality may be large or small, depending on just how much data has been removed. Also, each subsequent processing or re encoding will lead to more quality loss. The classic type of lossy compression is MP3. Which recording Format is right for me? To decide on the best recording format, we should understand 2 more terms, Sampling and bit rate. Digital audio has two primary qualities that compose the way the audio is described. - sampling rate and bit rate. Sampling Rate Whenever you are recording audio digitally, the device (say, your computer or laptop) receives the audio signal, by breaking it up into "snapshots" or samples. In recording technology, the

amount of samples received per second is termed the sampling rate. The theory is similar to an electronic digital movie camera that records a variety of image fps and plays it back to be a continuous moving image. Similarly, you enjoy uninterrupted audio playback. Sampling rate is measured in hertz and represents the sound frequency range. Higher the sampling rate greater is definitely the audio quality and ensures greater precision within your high notes and low notes. Standard CD quality incorporates a sampling rate of 44, 100Hz or 44.1 KHz. Sampling rates start from 8000hz(really low quality) to 196,000(very high quality, with extreme huge files). Bit Rate In digital multimedia, bit rate often refers back to the range of bits used per unit of playback enough time to represent a continuous medium like audio. Let us know very well what the bit rate actually represents. While sampling rates are quantity of samples recorded per second, bit rate refers to the characteristics for each individual sample recorded. Returning to the digital camera example, bit rate is the equivalent of pixels in digital images. Higher the pixels, better may be the image quality. Similarly, higher the bit rate (also called bit depth), better is the audio quality. For instance an 8 bit audio will sound grainy and harsh, while a 16 bit audio sounds much better. Standard CD format has 44.1k sampling rate put together with 16 bit rate.