In the western hemisphere, 440Hz established after 1936 as the standard pitch, indicating a reference A for tuning instruments. Some say at 432Hz this would be a better place .

For an individual quote, please mail me at and include the following info:

Stereo mastering

_How many tracks need to be mastered?
_What’s the total duration of the playlist?
_For which formats do you want your pieces to be mastered?
_When do you want to book a session and
what’s the estimated deadline for delivery of the master?

Audio restoration

Studio Schwebung offers world class transfers and restoration of historical 78/45/33 rpm records, 1/4 and 1/2 inch reels, cassette tapes as well as digital formats.

_What is the original medium you want to have restored?
_Do you want me to take care of the transfer?

A master comprises the sequenced playlist with adjusted volume relations, elaborated fade I/Os and spacings between tracks to guarantee a perfect flow of your work. It is delivered to you as an upload of full resolution .WAV or .AIFF files for vinyl, cassette and digital distribution. In case your work will be released on CD, a ready for production DDP 2.0 image will be included.

Mastered for iTunes Version
Studio Schwebung is certified by Apple for mastering expressly for distribution by iTunes.

Attended Mastering is possible in my studio in Bonn, Germany at no additional costs.

Turnaround time depending on the scale of your project is between 1-10 days after a session has started.  Please make sure you will have the time to check the files I will send you. In order to work efficiently it is important to receive your feedback within 24 hours.  

You will first receive a proposal for a master of one track of my choice so you can see whether things move in the right direction.

I do not charge you for every extra minute of work on your material or for communication time and I’m always happy to provide advice on how to archive a better mix. However, there are certain cases such as excessive reworking of a master that may raise your costs. I will inform you about this in advance.

In case you will submit a new mix for an already mastered piece, this will be charged as a new track.

As a new client I will ask you for an advance payment. In any case, a master is only finished once you are 100% happy with the results. Payments can be made via Paypal, Stripe, by bank transfer or credit card.

Returning clients will receive an invoice once a master has been fully approved. Since you will receive the finished master before the invoice I’m asking for a payment within 2 days after billing.

 Please make sure your payment covers all fees so the billed amount will arrive in my account.  

As a small business I currently don’t charge VAT.

read: Contact + Booking