Waveform
Jazz typical envelope
EQ Profile
Upright Bass Warmth (80–150 Hz) & Piano Air (8–12 kHz)
LUFS Target
SoundCloud integrated
Spectrum
Pink-noise reference
Wide dynamics, natural instruments, minimal processing · Tuned for SoundCloud playback
Target: -11 LUFS · True Peak: -0.5 dBTP · Dynamic Range: 12-18 LU
| Parameter | Jazz Specification |
|---|---|
| Loudness Target | -11 LUFS integrated (SoundCloud optimized) |
| True Peak Ceiling | -0.5 dBTP. Inter-sample peak limit |
| Dynamic Range | 12-18 LU LU. Genre-appropriate |
| EQ Focus | Upright Bass Warmth (80–150 Hz) & Piano Air (8–12 kHz) |
| Stereo Image | Natural ensemble width, minimal processing |
| Platform Algorithm | SoundCloud uses aggressive loudness normalization and transcodes to 128kbps MP3. |
Jazz mastering requires the most restraint of any genre. The goal is transparency, not enhancement. A well-recorded jazz ensemble contains natural dynamics of 20+ LU, and compressing this to 8–10 LU destroys the expressive arc of the performance. The correct approach preserves dynamic contrast: a master bus compressor at 1.5:1 ratio, 50 ms attack, 300 ms release, adding no more than 2–3 dB of gain reduction at peaks. Upright bass at 80–150 Hz requires careful attention. The instrument's natural warmth must not become boominess when reproduced on small speakers. A high-pass at 35 Hz removes sub-rumble without affecting the bass fundamental. Piano room reflections at 400–800 Hz can accumulate into a boxy character. A dynamic notch at 500 Hz that only activates during sustained chords cleans the picture without affecting transient attacks. The target of 12–18 LU dynamic range is incompatible with maximum loudness. Jazz at -16 to -18 LUFS sounds quiet compared to a -9 LUFS hip-hop track, but that's correct: streaming normalization restores loudness parity, and the jazz listener's experience is enhanced by full dynamic expression rather than compressed loudness.
SoundCloud context: SoundCloud uses aggressive loudness normalization and transcodes to 128kbps MP3. Master slightly louder (-11 to -13 LUFS) and ensure clarity survives MP3 compression.
How -11 LUFS interacts with Jazz's natural loudness window
Jazz masters naturally land at -20 to -16 LUFS. Roughly 7.0 dB quieter than SoundCloud's -11 LUFS target. SoundCloud will boost the master at playback, which means sample peaks that read clean against your DAW meters can approach 0 dBFS once the algorithm adds gain. True-peak limiting at -0.5 dBTP becomes a hard requirement, not a stylistic choice. Inter-sample peaks that survive a -0.5 dBTP ceiling at -16 LUFS will clip after SoundCloud normalizes your track upward. The -0.5 dBTP ceiling specified for SoundCloud prevents inter-sample peaks from clipping during the codec's reconstruction filter, which is especially relevant for Jazz's 100-300 Hz bass body content where high-amplitude transients accumulate against the limiter.
SoundCloud encodes at 128 kbps free / 256 kbps Go+ and plays primarily through compressed-tier streams. the listener's playback chain destroys content below 60 Hz and rolls off above 12 kHz before your master ever reaches their ear. Jazz's 100-300 Hz bass body and 8-12 kHz cymbal air content needs to translate at 100-200 Hz low-mid smear and 10 kHz+ rolloff or it disappears from the playback. Harmonic-exciter saturation that re-creates fundamentals as upper harmonics is more useful than EQ boosts on this platform: phone speakers can reproduce harmonics that they cannot reproduce as fundamentals. The dynamic-range character of Jazz (wide and natural, 12-18 LU) interacts with this codec tier specifically: compress conservatively, then let the codec do the rest. Over-compression at the mastering stage stacks with the codec's loudness handling and produces a flat, fatigued listening result.
Natural sound: Minimal EQ. Jazz should sound like microphones in a room, not processed audio.
Low-end: Only apply high-pass below 30 Hz to remove rumble. Keep bass natural and full.
Air: A very subtle 12–16 kHz boost can add studio sparkle without compromising naturalness.
Transparency: Focus on transparent limiting only. Any heavy processing kills jazz's authenticity.
Minimal compression: A gentle glue compressor (ratio 1.5:1, slow attack, fast release) is maximum. Jazz must breathe.
High dynamic range: Target 12–18 LU dynamic range. Jazz at -18 LUFS with 18 LU range sounds more 'real' than hard-limited jazz.
Limiter transparency: Use a high-quality linear-phase limiter to avoid coloration. Jazz listeners can hear it.
How Jazz mastering specs differ across every major streaming platform.
| Platform | Integrated LUFS | True Peak | Current page |
|---|---|---|---|
| -14 LUFS | -1 dBTP | View guide → | |
| -16 LUFS | -1 dBTP | View guide → | |
▶️YouTube | -14 LUFS | -1 dBTP | View guide → |
| -14 LUFS | -1 dBTP | View guide → | |
☁️SoundCloud | -11 LUFS | -0.5 dBTP | You are here |
| -14 LUFS | -1 dBTP | View guide → | |
| -13 LUFS | -0.5 dBTP | View guide → | |
🎛️Beatport | -9 LUFS | -0.3 dBTP | View guide → |
| -14 LUFS | -1 dBTP | View guide → | |
| -14 LUFS | -1 dBTP | View guide → | |
| -14 LUFS | -1 dBTP | View guide → | |
| -15 LUFS | -1 dBTP | View guide → |
Target: -11 LUFS integrated · -0.5 dBTP true peak · EBU R128 / ITU-R BS.1770-4 compliant
We measure integrated LUFS using K-weighted filtering per ITU-R BS.1770-4: a high-shelf pre-filter at 1681.97 Hz (+3.9998 dB gain) followed by a 75 Hz high-pass (Q=0.5) to remove DC offset and low-frequency rumble. The mean square of the filtered signal gives us integrated loudness in LUFS.
True peak (dBTP) is measured at 4× oversampling to detect inter-sample peaks that occur between digital samples. Sample-peak measurement alone misses these peaks, which cause audible clipping during AAC and MP3 lossy encoding on streaming platforms. We enforce the true peak ceiling at -1 dBTP for all standard platforms.
Genre EQ profiles apply frequency-specific gain based on each genre's sonic characteristics: mud reduction at 250–400 Hz for hip-hop and trap, presence enhancement at 2–4 kHz for vocal clarity on phone speakers, sub-bass high-pass at 30–35 Hz for all genres to remove inaudible subsonic content that wastes headroom.
Master bus compression uses a VCA-style algorithm with genre-tuned attack and release times. Lo-fi and jazz use 50 ms attack to preserve transients; EDM and techno use 5–10 ms for density. Parallel compression blends the compressed signal at 20–40% wet to lift room sound without eliminating the uncompressed transient attack.
The final limiter stage uses lookahead limiting (3–5 ms) to catch transient peaks before they exceed the true peak ceiling. The limiter targets platform-specific LUFS: -14 LUFS for Spotify, -16 LUFS for Apple Music, -11 LUFS for SoundCloud, -9 LUFS for Beatport. Gain reduction is transparent at 1–2 dB of limiting; beyond 3 dB audible artifacts require reducing the input drive.
All processing runs in your browser via Web Audio API. No audio data is uploaded to any server.
-11 LUFS integrated, but jazz benefits from wide dynamic range (12-18 LU). Unlike EDM, jazz should NOT be pushed to the loudness limit. The 'quietness' of well-mastered jazz is part of its character.
Minimal compression only. A gentle 1.5:1 glue compressor at most. Jazz relies on natural dynamics for expression. Killing the dynamics with heavy compression removes the emotional performance nuance.
Jazz on SoundCloud benefits from minimal processing. Let the recording's natural dynamics come through at -11 LUFS.
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