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Home Mastering 101: How To Make Mixes Louder, Clearer and Punchier

Mastering scares a lot of people.
Throughout history, professional mastering has always been an advanced skill
that only the most experienced engineers would take up. The classic assumption
is that you need perfectly trained ears and an expertly treated room to even attempt

Thanks to modern plugins and software, it’s
perfectly possible to master music at home to a high standard. Although a track that is mastered
outside of a professional mastering studio will never be as translatable or
pristine as a properly mastered track, you can still get great results at home
with the equipment you already have.

If you are producing an important album or
single, I recommend sending your mixes off for professional mastering. But when
you are on a budget, working with demo tracks or need a quick turnaround, home
mastering is the ideal solution.

The Mastering Phases

You might think the term mastering only
refers to the processing the final stereo file after the mix is finished, but this is a misconception. Mastering is much more than that. It is the process of
finalising and album or EP. The mastering engineer is the last person to check
everything over before printing it to CD and other formats.

It might even be your job to decide on the
order of the tracks. The artist, producer or label probably have an idea in what order they want the tracks to appear, but when mastering an album you
need to think about the flow of the tracks.

Consider if the album starts with a bang, or the
track order builds to a crescendo. Order the in a way that is exciting.
Songs with a similar key may appear next to each other to help the flow of the
album. Give consideration to factors such as these.

Once a track order has been decided, it’s
time to start processing the individual tracks. This generally involves six core phases:
noise reduction, surgical equalisation, compression, tonal equalisation,
limiting and dithering. 

You’ll also need to ensure the sound
is consistent between the tracks. If certain songs were recorded or mixed by
different engineers, it’s your job to use equalisation and compression to make
them sound more similar and cohesive.

Once the processing is finished and final level checks have been made, export the tracks. If you are burning the
album to CD, you need to decide on the gap length between songs and create a Red Book CD to send off to a printing house. You can do this with dedicated
CD mastering software such as WaveBurner.

Ordering tracks with WaveBurner
Ordering tracks with WaveBurner

If you are simply sharing the tracks
online, you need to bounce them to various formats. Finally, archive high-resolution versions of each track for future adjustments or

Stereo File Processing

Looking at the processing phases in
more detail, this is by no means a definitive order, and sometimes it works
best to apply these processes in different stages. Nevertheless, this is the
order that I use the most.

Noise reduction is especially important
when re-mastering old analogue recordings. Hums, hisses, clicks and pops must all be removed from the track before
it can be further processed. Dedicated noise removal tools such as iZotope RX 5
are perfect for this job.

Noise removal with RX 5
Noise removal with RX 5

Surgical EQ can then be used to remove any
nasty elements of the sound. Filters can also be used here to roll off any
unnecessary bottom end (below 20-30Hz).

Applying surgical EQ with a Linear Phase EQ in Logic Pro X
Applying surgical EQ with a Linear Phase EQ in Logic Pro X

Next, compression is used to squeeze some
more volume out of the track. By adjusting the attack time it’s possible to add
more punchiness (slow attack time) or thickness (fast attack time) to the

Adjusting the release time can also add more apparent volume (fast
release time) or make the compression sound more musical (slow release time).
It’s not unusual to use several compressors in series, with each compressor
applying 1-3dB of gain reduction.

Applying compression in Logic Pro X
Applying compression in Logic Pro X

You can use multiband compression if you
want more control over the individual frequency ranges. For example, if you
have been sent a track where the hi-hat is particularly loud, you could
compress the frequency range of the hi-hat rather than just removing with EQ. 

You can also use multiband compression to tighten up the low end of the mix
without affecting the entire frequency spectrum.

Applying multiband compression with the Waves C6
Applying multiband compression with the Waves C6

Now that you’ve removed any nasty elements
and compressed what is left, shape the sound of the track with EQ.
If the mix is too bass heavy, or too bright, EQ can be applied to correct these

The track needs to translate well onto as many systems as possible, so
compromises are made to make sure the track will sound good anywhere. You could use any form of equaliser here. 

Linear phase equalisers are great for mastering and are less likely to cause phase issues, but only when subtle changes are applied. Analogue EQs and plugins modelled on analogue EQs also work well here for adding character.

Adding warmth with a Pultec style EQ
Adding warmth with a Pultec style EQ

A limiter is then used to increase the
volume of the track. Again, several limiters can be used in series. Using a
good limiter is a vital part of mastering. This is the phase when everything
can quite easily go wrong and you can ruin the mix. 

Be subtle with limiting,
and always chose musicality over volume.

Applying a limiter in Logic Pro X
Applying a limiter in Logic Pro X

Finally, if you have been working at 24-bits, or higher, the track needs dithering down to 16-bit, ready for

Dithering should only be applied once at the very end of the
mastering process. If you don’t dither your tracks, and simply export them as
16-bit, some distortion could occur. Applying downward bit conversion with
dithering is an important final step.

Exporting and dithering in Logic Pro X
Exporting and dithering in Logic Pro X

Of course, this is a very basic outline of the various mastering processes. There are many more tools and techniques that could be used, including stereo widening, mid/side processing and numerous other process. But, for the sake of this series, I’ll focus on those six key processes.

Home Mastering Equipment 

All of these processes can be applied in the DAW, using stock or premium plugins. There are also numerous
dedicated mastering plugins that cover every processing step.

The listening setup is the most important
aspect here. Acoustic treatment will improve the sound of the room and make
equalisation much easier. If possible, use absorptive panels at the first
reflection points—where the sound from your speakers would bounce off the wall
and into your ears—and use bass traps to control the low end in the room.

Use a professionally mastered reference
track to help you with your decisions. Constantly compare your master to the
reference. You can also check the tracks on headphones and other speakers
systems to make sure they translate well.

In part two of this series on home mastering,
I’ll explain dynamic processing in more depth. You can look over my
shoulder as I apply gain staging, compression and limiting to a finished mix. Then, in part three, I’ll explain all about EQ and the other important processes.