True Peak for Streaming: -1 vs -2 dBTP Mastering Guide
For Spotify, keep a master below -1 dBTP, or below -2 dBTP when it is louder than -14 LUFS integrated. Those are Spotify's current transcoding recommendations, not a universal rule for every platform. Use a true-peak meter or limiter, export one high-quality stereo master, and audition encoded versions instead of relying on a sample-peak ceiling alone.
Lead visual
Streaming master readout
Loudness meter
Integrated LUFS
-14target
True peak
-1dBTP
Bit depth
24bit
Waveform after normalization
Audio · Mastering
Playback spec map
Decision
Master for translation, not just for maximum loudness.
Evidence
LUFS, true peak, file format, headroom, codec behavior, and the final exported master.
Risk
A master that feels exciting in the room can distort, turn down, or lose impact after delivery.
Good outcome
A master that survives platform normalization and still feels intentional.
Key takeaways
- True peak estimates reconstructed peaks that a sample-peak meter can miss.
- Spotify recommends below -1 dBTP for general delivery and below -2 dBTP for masters louder than -14 LUFS.
- Loudness normalization changes playback gain; it does not repair distortion in the source master.
- Platform targets and delivery programs differ, so verify the intended destinations.
- Measure the rendered file and audition encoded versions before distribution.
How do sample peak and true peak differ?
| What it measures | How to use it | |
|---|---|---|
| Sample peak | The maximum amplitude among stored digital samples | Useful for digital sample values, but not a complete estimate of reconstructed peaks |
| True peak | An estimate of the reconstructed waveform between samples | Use dBTP metering when setting delivery headroom and checking encoded playback |
| Integrated LUFS | Programme loudness over the measured track or album | Use alongside true peak; it answers a different question from the peak ceiling |
A clean sample ceiling is not an encoded-file test
Conversion and lossy encoding can change peak behaviour. Measure the final render and audition representative encodes instead of trusting only the limiter's sample ceiling.
What does Spotify currently recommend for true peak?
Spotify currently targets playback at -14 dB LUFS integrated and advises masters below -1 dBTP maximum. If a master is louder than -14 LUFS integrated, Spotify advises keeping true peak below -2 dBTP because louder material is more susceptible to distortion during streaming encoding. These are Spotify recommendations for its processing and playback ecosystem.
Spotify says normalization is applied during playback and covers compressed and lossless formats, while the web player and some third-party devices do not use it. The service asks for one high-quality stereo master and prepares its internal formats. Do not create multiple loudness versions unless a destination's current specification explicitly requires them.
How should you set and verify a true-peak ceiling?
Master delivery check
Five passes before upload
- 01
Pass 1
Destination
List the distributor, streaming services, download stores, and any premium delivery programme with separate specifications.
- 02
Pass 2
Meter
Use a true-peak-capable meter and confirm its standard, channel mode, and full-program measurement settings.
- 03
Pass 3
Limit
Set the ceiling for the intended destination, then listen for pumping, transient loss, and distortion.
- 04
Pass 4
Render
Export the actual delivery file and remeasure it rather than relying only on the live session meter.
- 05
Pass 5
Encode
Audition representative compressed versions, document the measured result, and retain the approved source master.
When should a louder master use more headroom?
For Spotify, the documented branch is simple: below -1 dBTP generally, and below -2 dBTP when the master is louder than -14 LUFS integrated. This does not mean every master should be forced to -14 LUFS. It means loudness and peak headroom must be evaluated together before transcoding.
record the delivery file specifications alongside the measured loudness and true peak
Which primary sources define current mastering guidance?
Frequently asked questions
What is true peak in mastering?+
True peak estimates the highest level of the reconstructed waveform, including levels between stored digital samples. It is reported in dBTP. A sample-peak meter reads only the sample values, so the two meters can disagree near the ceiling. True-peak metering is useful when a master will be converted, normalized, or encoded for streaming playback.
Should every streaming master use -1 dBTP?+
Treat -1 dBTP as Spotify's published general guidance, not a law shared identically by every service. Spotify advises below -2 dBTP when the master is louder than -14 LUFS integrated. Other services, aggregators, and premium delivery programs publish their own specifications. Check the current destination requirements and keep one high-quality master when the service says it handles downstream formats.
Does Spotify loudness normalization repair clipping?+
No. Spotify says it measures files during upload but applies loudness adjustment during playback rather than changing the delivered track. Negative gain can turn a loud master down, but that does not undo distortion already printed into the master. Spotify also notes that web-player and third-party-device behavior can differ, which is another reason to deliver a clean file.
Do I need a true-peak limiter?+
You need a reliable way to measure and control true peak; that can be a limiter with true-peak mode, a separate compliant meter, or both. Turn on the documented oversampling or true-peak option, measure the full export, and compare the rendered file with the session. The label on a plug-in is not a substitute for testing the output.
How do I test a master before distribution?+
Measure integrated loudness and maximum true peak across the complete rendered file, listen for clipping and limiting artifacts, confirm channel format and file specifications, and audition representative lossy encodes. For Apple Digital Masters, use Apple's current tools and delivery guidance through an approved mastering workflow. Preserve the final report so the distributor upload can be matched to the approved file.
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