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發表於 2026-5-19 19:03:52
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本帖最後由 Elamigo 於 2026-5-19 19:14 編輯
Wanted to share what I’m listening to, explaining HQplayer audio Analysis of the audio library.
(Note: for this to work the music files need to be analyse first by HQplayer. I currently have a duplicate disk I used as a library backup as my HQplayer library and Minimal Server Library (for Jplay) as well and a ROCK library on a separate external HD library for ROON. An a 3rd hard disc backup that I keep on the side. So we always say in IT Back-up, Back-up, Back-up 3 times!!)
Using the HQPDcontrol app, you can get a graphical interface and able to discover what is a good master quality recording. Roon only provides Dynamic Range, but HQplayer Library can give us more more data.
For this Example I used:
Al Di Meola, John McLaughlin, Paco De Lucia
Saturday Night In San Francisco
Format: DSD64 (Extracted ISO SACD to DSD)
HQPD-1
Loudness: -15.7 LUFS • Streaming Target (yellow)
Dynamic range (DR) 11.8 • Wide
Recording Score: Great album with Wide Dynamic Range, an moderate LUFS
HQPD-2
Loudness bands (LUFS)
(Blue) Quiet — Below -23 LUFS — classical, jazz, audiophile masters.
(Green) Broadcast — -23 to -18 LUFS — EBU R128 broadcast target.
(Yellow) Streaming target — -18 to -14 LUFS - Spotify / Apple Music / Tidal target.
(Green) Loud — Above -14 LUFS — hot master level, typical of modern pop/rock.
Dynamic range bands (LU)
(Pink) Heavily compressed — Below 6 LU - brick-walled, minimal micro-dynamics.
(Yellow) Moderate — 6 to 10 LU — typical modern pop/rock master.
(Green) Wide — 10 to 15 LU — audiophile mastering, preserved dynamics.
(Blue) Very wide — Above 15 LU — classical, jazz, acoustic recordings.
Per-track mini-bar
Scale -40..0 dBFS. Grey background is the full range. Colored segment spans from RMS to peak - shorter segment means heavier compression. The dot marks integrated LUFS of the track. Bar colour follows the LUFS band.
Metrics
Peak - Highest sample value in dBFS (0 dBFS = clipping).
RMS - Average signal energy in dBFS - rough perceived level.
LUFS - Integrated loudness per
ITU-R BS.1770 with K-weighting.
Dynamic Range - Loudness range in LU (LULR) — spread between quiet and loud passages.
Loudness war
Hot LUFS (> -14) combined with low DR (< 6) is the signature of loudness-war masters - aggressive compression trades dynamics for perceived loudness. Common on 1995-2010 remasters of back-catalogue titles; original releases from the 70s-80s usually sit at DR 12-16.
Reference ranges: modern pop -9 to -6 LUFS at DR 4-6; audiophile reissue -18 to -14 LUFS at DR 10-14; classical or jazz -24 to -18 LUFS at DR 14+. Notorious cases: Metallica - Death Magnetic (2008, DR ~ 3), RHCP - Californication (1999, DR~4).
Photos for reference on App below
HQPD-3
HQPD-4
HQPD-5
HQPD-6
HQPD-7
HQPD-8
HQPD-9
HQPD-10
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