AUDIO SPECIFICATIONS

Audio requirements and recommendations for the quality vinyl record production at RPM Records.

MASTERING SPECIFICATIONS

Vinyl as any other format has its own limitations. To make sure your music sounds great on a record, please comply with general mastering for vinyl standards:

  • Loudness: < 0db
  • Low frequency cut at 10hz
  • Low frequencies below 250hz in mono
  • Be careful with extreme peaking above 16khz
  • No negative phase returns
  • Stereo width between  +0.5 and 1
  • File formatting:  .wav / .aif
  • Audio quality: 24bit; 44.1- 48Khz

Remember to master your music. Mastering for vinyl is essential to ensure the best quality of the record.

PLAYBACK TIMES

Loudness and frequency spectrum have a direct effect on playback times on a vinyl record. Extended playback times may results in the loss of low end, low volumes and poor quality. For the best quality results please keep your record sides up to 20 minutes.

RECOMMENDED PLAYBACK TIMES FOR THE VINYL RECORD:

  • 12″ 33 RPM – up to 22 minutes per side.
  • 12″ 45 RPM – up to 15 minutes per side.
  • 7″ 33 RPM – up to 7 minutes per side.
  • 7″ 45 RPM – up to 5 minutes per side.

33 or 45 RPM? – RPM is an abbreviation for “revolutions/rounds per minute”. This refers to the playback speed and directly affects length of a record. Please consult your mastering / cutting engineer for choosing the speed that is most suitable for your program material.

UPLOADING THE PROGRAM MATERIAL

  • Uploaded folder must contain separate audio files named to index record sides, for example : A1-Name, A2-Name, B2-Name”.
  • If you require gaps between tracks please add silence in the end of each track for groove spacing.
  • Fill out the cue-sheet below and upload it together with the audio files.
  • Upload the audio and cue sheet to Dropbox, name it your Order Number and share it with us (the artwork has to be uploaded in the same folder).

Download: Cue Sheet

MASTERING SERVICES

Mastering is essential for the vinyl format in order to avoid distortion, mechanical playback issues and generally to make the record sound as good as possible. If your music is not mastered, mastered for digital formats or if you need re-mastering, we highly recommend ordering professional mastering services with us.

  • Mastering from a variety of formats: CD, tape, DAT or digital files.
  • Converting a digital master to a vinyl pre-master.
  • Analog / digital in-depth mastering with high-end equipment.
  • Attended mastering and cutting session in Copenhagen.

REFERENCE CUT

If you are not quite sure about the mixing and mastering quality, we recommend ordering one copy reference cut on acetate. During this process a number of adjustments and improvements can take place before the high cost lacquer cutting / stamper production and test pressings have been ordered. Reference cut is an excellent and inexpensive way to learn about how your program material will translate to the vinyl format.

Reference cuts (per side)
Up to 16:00min – 700DKK / 95 EUR
Up to 20:00min – 790DKK / 110EUR
Up to 25:00min – 885DKK / 120EUR
+ SHIPPING

MASTER PLATES AND STAMPERS

We can press from both lacquer and DMM master plates. We will choose the best suitable cutting method depending on the program material and turnaround times. If you have a specific preference for cutting, would that be lacquer or DMM, please let us know when placing your order.

FOR ARTIST AND LABELS: We offer an attended master disc cutting session in Copenhagen.

Do you want to experience your music being cut on a lacquer disc and participate in the first step of vinyl manufacturing process? Book an attended  session with the cutting engineer when placing your order!

For all audio related queries please contact: audio@rpmrecords.dk

OUR PARTNERS

Kommunal Dubplate Service

A mastering and lacquer cutting studio in Nørrebro, Copenhagen run by Hari Kishore. Digital and analogue mastering for vinyl and master record cutting on Skully lathe from digital files or tapes.

Read the article on Kommunal Dubplate Services

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Sonne Studios

A recording, mixing, mastering and production studio in Greve, Greater Copenhagen run by Nicklas Sonne. The studio contains a drum booth, a vocal booth, high-end microphones and full assistance in recording, as well as professional mixing and mastering for vinyl and other formats.

Read the article on Sonne Studios

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