" (often an Audiochecker or Lossless Audio Checker report) is a file included with the download to verify: Spectrum Analysis
: Confirms the audio isn't a "fake" high-res file (e.g., an MP3 upscaled to FLAC) by checking for frequencies above 20 kHz. Source Verification Tame Impala - Currents -2015- 24-44.1 FLAC-BBM