I don’t know if it can be fully trusted, I like to see the spectrum myself, but it saves a lot of time. If you want to check a lot of files this method can be a little bit tedious, but fortunately there is a tool for that too. I know I can’t tell a 96/24 and 44/16 file apart. There is great debate on whether or not anything above that actually contributes anything to the experience or not. It’s fairly obvious that this file goes well beyond the hearable range, which tops out at about 20 kHz. Now, let’s look at something with a bit more headroom. It goes all the way up to 22 kHz with no cutoff below. This below is what a 44 kHz, 16-bit file should look like. This time it cuts off at 20 kHz, consistent with the table above for a 320 kbps file. Next let’s take a look at a 320 kbps MP3 converted back to FLAC. This is what the 44 kHz, 16-bit file looks like after being converted to a 128 kbps MP3 and then converted to FLAC. I have imported it for personal use from a CD I bought, but I also bought the official download in 96 kHz, 24-bit so I am also going to compare to that.įirst we can see a spectrum we really don’t want to see. Here I’m looking at a legally acquired track. If there is no cutoff, the file is most likely lossless.
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