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The Complete Guide to Preparing Audio for Vinyl & CD On-Demand

Introduction

At elasticStage, we transfer your content onto media as faithfully as possible, preserving the sound of your uploaded files without making creative or unnecessary changes.

Because vinyl and CD are physical formats, there are technical considerations to be aware of before uploading your audio. This guide explains how to prepare your files correctly for both formats based on how our system works today.


How elasticStage Handles Your Audio

  • We do not provide a dedicated mastering service.

  • We preserve the loudness relationship between tracks.

  • We do not make creative adjustments to your sound.

  • We only make technical adjustments where required (for example, CD true peak protection).

This sets expectations clearly and protects you legally.


Accepted File Formats & Technical Specifications

Supported File Types

We accept:

  • WAV

  • MP3

Files must:

  • Be stereo

  • Be at least 10 seconds long


Sampling Rate & Bit Depth

For Vinyl

Our vinyl is manufactured using high-quality converters running at 96 kHz / 24-bit.

For best results, we recommend uploading at 96 kHz / 24-bit.

Other supported formats:

  • 24-bit or 16-bit

  • 44.1 kHz

  • 48 kHz

  • 88.2 kHz

  • 96 kHz

Any other sampling rate or bit depth will be converted to 96/24.

For CD

CDs are produced according to the Red Book CD standard, which is:

  • PCM

  • 16-bit

  • 44.1 kHz

Any other format will be converted to this standard.


Preparing Audio for CD

True Peak Level (-0.7 dB Limit)

To ensure compatibility across CD players:

  • If your uploaded audio exceeds -0.7 dB True Peak,

  • We attenuate all tracks by the same amount

  • This preserves the loudness relationship between tracks

Why?

Some CD players:

  • Mute audio

  • Introduce clicks

  • Produce distortion

when true peak levels exceed this threshold.


Loudness Relationship Between Tracks

We maintain the relative loudness between all tracks.

If one track is quieter intentionally, it will remain quieter.


CD Text Metadata

We embed metadata as CD Text, but not all CD players support this feature.


Preparing Audio for Vinyl

Vinyl has physical characteristics not present in CD or streaming formats. These affect:

  • Loudness

  • Bass

  • Treble

  • Side layout

  • Playback compatibility

We do not apply artistic mastering decisions on your behalf.


Track Layout on elasticStage

Unlike traditional vinyl masters:

  • You must upload tracks as individual audio files

  • We automatically lay them out with visible spacing

  • We do not introduce additional silence

If tracks should play seamlessly into each other, they will.

If you want silence between tracks, add it to the end of the preceding track (as streaming platforms do).


Vinyl Side & Space Limitations

Vinyl has limited space per side.

There is a trade-off between:

  • Duration

  • Bass content

  • Loudness

Longer or bass-heavy content:

  • Takes up more space

  • May reduce playback level

Quieter or shorter content:

  • Takes up less space

We produce vinyl at a default maximum playback level, but this may decrease if more space is required.

We maintain the loudness relationship between tracks per side.


High Frequencies & Inner Groove Distortion

Toward the centre of a vinyl side:

  • Treble quality decreases

  • Distortion increases

Very loud high frequencies (such as strong sibilance or aggressive cymbals) may cause distortion.

Common practices include:

  • Placing louder, brighter songs at the beginning of a side

  • Placing quieter tracks toward the end

  • Applying a de-esser to reduce excessive high frequencies

These are artistic decisions that we do not make on your behalf.


Bass & Phase Considerations

Common vinyl preparation practices include:

  • Converting bass content to mono

  • Avoiding long periods of negative phase correlation

  • Avoiding sudden amplitude changes (clicks, pops, bad edits)

  • Filtering content outside the audible spectrum

We provide a correlation meter in the Tracks tab.

If the meter stays in the red (between 0 and -1) for extended periods at high levels, vinyl quality may degrade and the risk of skipping increases.

Short red readings at low levels (e.g. reverb tails) are normal.


Do I Need a Separate Vinyl Master?

Vinyl mastering is not mandatory.

Well-mastered content prepared for streaming or CD often works well.

However, vinyl mastering can improve sound quality.

We do not provide a dedicated vinyl mastering service.


Vinyl Playback & Skipping

Vinyl playback depends heavily on:

  • Turntable quality

  • Cartridge

  • Weight calibration

  • Anti-skate settings

Cheaper turntables (typically under $100) are more likely to skip, especially with:

  • Loud cuts

  • Strong stereo content

We aim to strike a balance between:

  • Signal-to-noise ratio

  • Playback compatibility

Our manufacturing method allows for lower noise levels, which helps reduce skipping on affordable turntables.

However, no vinyl is completely skip-proof, especially on very low-cost players.

If you experience skipping:

  • Check your turntable setup

  • Check other records

  • Inspect the stylus

  • Clean dust


Adding Silence Between Tracks

We do not automatically add silence.

To create silence:

  • Add the desired silence to the end of the preceding track

  • Use audio software (e.g. silence generator tools)

This follows the same principle used by streaming platforms.


Test Copies

We strongly recommend ordering a test copy before releasing your vinyl, especially if you are new to the format.

If adjustments are required:

  • Retire the release

  • Clone it

  • Upload revised audio


Final Audio Preparation Checklist

Before uploading your audio to elasticStage, make sure:

For All Formats

  • Files are WAV or MP3

  • Files are stereo

  • Files are longer than 10 seconds

  • There are no unintended clicks, pops or dropouts

  • Track order is correct

  • Any required silence has been added manually

For CD

  • True peak does not exceed -0.7 dB (if it does, we will lower all tracks equally)

  • You understand that CDs are produced to the Red Book 16-bit / 44.1kHz standard

For Vinyl

  • You are aware of vinyl’s physical limitations

  • Excessive stereo bass has been avoided

  • Long periods of negative phase correlation have been avoided

  • Very bright, sibilant tracks are not placed at the end of a side

  • You have reviewed the correlation meter

  • You understand that playback quality depends partly on turntable quality


Next Step: Uploading Your Tracks

Once your audio is prepared, you can upload your tracks individually.

If you're unsure about how to upload your files or manage track layout, see:
How to Upload Tracks & Enter Metadata on elasticStage

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