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My laptop is a Dell Inspiron 35-XXXX. My operating system is Windows 10. The laptopo has superior sounding speakers. I needed to add the Brussels 73 version of Angie to a playlist and was too lazy to get up and find one of the CDRs I possess with it. So I went online and downloaded the audio in m4a format.
Listening to it I'm amazed at the clarity and crispness of the sound! I think it's akin to a FLAC download. Am I imagining this or have I been stuck in the 1990s of audio downloads online?
M4A is an audio file which is compressed using MPEG-4 technology which is an algorithm with lossy compression. It is primarily associated with “MPEG-4 Audio Layer” and files in this extension are the audio layer of MPEG-4 movies (non-video). It aims to overtake mp3 and become the new standard in audio compression.
M4A is actually a container file, which can contain either aac (lossy like MP3) or alac (lossless like flac) formats. So it was possible that you downloaded a lossless track which would have been identical to flac - filesize will tell you which it was.
Of course, many people also argue that you cannot tell the difference between lossless and a good lossy track (I don't want to dredge up the argument, just noting that some people say it!).