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- Audio CDs are physical discs that store music in uncompressed format, resulting in high-quality sound. They can be played on CD players, car stereos, and computers with CD drives. On the other hand, MP3s are digital files that use compression algorithms to reduce file size without significant loss in audio quality.
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- Lossy audio. This is a compression technique that does not decompress audio files to their original data amount. Lossy methods provide high degrees of digital compression, which results in smaller files.
- Lossless audio. This is a compression technique that decompresses audio files back to their original data amount. Lossless methods can provide high degrees of digital compression, but there is no loss in size or sound quality.
- Uncompressed audio. This is an audio file that has no compression applied to it. The sound in uncompressed audio files remains the same as when it was recorded.
- FLAC (Free Lossless Audio Codec) FLAC delivers CD-quality audio in a file size smaller than an actual CD. It's also a non-proprietary, open-source codec that's great for software developers who want to use lossless audio.
Jun 15, 2011 · Audio CDs use an audio format that is designed specifically for CD players. Therefore, the audio format used for CD audio tracks does not correlate directly to an computer audio file type.
- Becky Scarrott
- File formats and codecs at a glance. Want to cut straight to the chase? Here's a handy guide to all the file formats and the differences between them. If you want to know more, read on below for a more in-depth look at the differences in size, sound quality and compatibility.
- Compressed vs uncompressed audio files. First, let’s talk about the three categories all audio files can be grouped into – uncompressed, lossless and lossy.
- WAV vs AIFF: uncompressed audio file formats. WAV and AIFF are arguably the most popular uncompressed audio file formats, both based on PCM (Pulse Code Modulation), which is widely recognised as the most straightforward audio storage mechanism in the digital domain.
- ALAC vs FLAC vs WMA Lossless: lossless audio formats. Everyone loves a FLAC. A lossless file, the FLAC (Free Lossless Audio Codec) is compressed to nearly half the size of an uncompressed WAV or AIFF of equivalent sample rate, but there should be no “loss” in terms of how it sounds.
Many people find it difficult to detect any difference between CD quality (16 bits/44.1 kHz) and higher bitrate standards, which some lossy file formats technically achieve. If it makes no difference to your ears, it makes sense to opt for a smaller file size when possible.
Aug 20, 2006 · Let’s look at the two different formats first. Audio CDs are designed for one purpose: audio. They contain raw, uncompressed data, in a very fixed format: 44,000 samples per second, with each sample consisting of a 16-bit (2-byte) number for each of the right and left channels.
Mar 8, 2008 · The primary difference between lossless compression for computer data and for audio is that the latter permits random access within the file. (If you had to wait to unZip the complete 400MB file of a CD's content before you could play it, you would rapidly abandon the whole idea.)
Jul 20, 2023 · The difference between the audio file extensions is simple: MP3 covers audio only, while MP4 includes audio and video. So, an MP3 player only supports audio, but an MP4 player can play audio and video media types.
