Yes, the lossless audio file you're using is probably compressed — that's completely fine for this reason.
CD-quality music is still the benchmark for decent audio; it’s not quite hi-res, but it’s noticeably better than the lossy, compressed music found on Spotify and your old MP3 library. But actually ...
Audio Precision, the recognized standard in audio test and measurement, introduced the APx515, a new two channel audio analyzer optimized for production test and starting at only $6200 in the US.