What Is Lossless Audio, and Do You Really Need It?
Briefly

What Is Lossless Audio, and Do You Really Need It?
"There's a difference, of course, between "putting some music on" and "listening to music." The first is just a nice way of disturbing the silence while you get on with some task or other, while the second is a way of transporting you into a world of emotion and expression. And so it follows that while the first doesn't require an exceptional level of quality to be effective, the second benefits no end from sounding as close to the artist's original intentions as is possible."
"At the risk of stating the obvious, lossless audio is digital audio that has lost none of the information originally contained in the recording. This doesn't mean it hasn't been compressed-both lossless and "lossy" files will have been through a process of compression in order to make sure the digital file is of manageable size to be streamed reliably. It's the size of the file after that compression that defines whether it's lossless or not-and there are two numbers that are relevant here."
Lossless audio is digital audio that has lost none of the information originally contained in the recording. Both lossless and lossy files undergo compression, but lossless files retain full original detail while lossy formats discard information to reduce file size. Two key technical measures are sample rate, the number of times per second the analog signal is sampled, and bit depth, which determines the dynamic precision of each sample. Compact discs use a 44.1 kHz sample rate. Growing numbers of streaming services now offer lossless tiers, making higher-fidelity listening more accessible to consumers.
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