What exactly is mastering and what operations are performed?

A detailed description of mastering can be found here. If you have any further enquiries simply telephone or e-mail.

What is the difference between online mastering and conventional mastering?

Online mastering doesn’t differ greatly from traditional mastering, though it does have two distinct advantages:

Firstly, the customer does not have to be present at the mastering session, giving the engineer more flexibility in terms of working time, streamlining the process. This, in turn, is reflected favourably in the price of the service.

Secondly, the master copy can be evaluated by the customer in their usual listening area, meaning the customer can easily judge whether the master meets their requirements in a location that they are sonically familiar with.


It would be a lie to argue that is the measure of all things, and that any record must be mastered here in order to get the best result.

However, our mastering engineer can boast of over ten years mastering experience, twenty years in the field of mixing, and a long track record as a musician and producer. This allows him to view each track from more than a technical standpoint, rather as a work of art.

I need my music 'Mastered for iTunes' (MFiT)

No problem! is registered as an official Apple MFiT provider, and qualifies to provide mastered files as ‘Mastered for iTunes’.

How should my tracks be delivered? Which formats do you accept?

We accept all popular „lossless“ audio formats (WAV/AIFF/OMF/FLAC).

In terms of audio quality, files should always be exported at the same sample rate and bit depth at which the project was recorded. For example, if a track was recorded or mixed in 44.1kHz, 24-bit, simply export using those values.

All sampling rates and bit depths can be accommodated, from 44.1kHz to 192kHz and 16-bit to 32-bit respectively.

Note on handling STEMS: Please note that when exporting STEMS each file must have the same time base and start at the same point. Even if a particular instrument is silent until late in the mix the file must still be exported from the same point as all others. In other words, export all of the project, including any breaks in audio!

How long does it take until I've got a finished master in my hands?

The duration of the mastering process varies according to a number of factors, including number of tracks, complexity and scheduling. On average you should receive your master copy within two to three days, although in some cases you may even get a same-day turnaround.

If urgent completion is required then early contact is advised – in principle we can almost always find a solution to any time constraints you may have.

What if I'm not satisfied with the result?

100% customer satisfaction is our biggest concern. For this reason all corrections are included in the quoted price. In very rare cases it may happen that the artist and mastering engineer have different ‘visions’. In this case the master can be amended to bring it into line with the artist’s wishes, and this can be repeated if necessary. If the required results are still not achieved, then the customer incurs no charge (zero, zilch!). Any monies paid by this point will be refunded as a matter of course.

In short, we’re only satisfied when the customer is, and that’s a promise!

Can I attend the mastering session?

In principle this is possible, however experience has shown that organising the necessary appointments to suit all parties can be tricky. If it’s still something you wish to pursue contact us via email at info [at] onlinemastering [dot] de to discuss possible dates.

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