Behind the new Nokia Rich Recording Technology on Nokia LUMIA 1520


It started this past summer with the release of
the Nokia Lumia 1020, showing us all so much
more than our eyes could see. Now, with the
release of the Nokia Lumia 1520 , you will be in a
position to both see more, and hear more than
ever before.
“Nokia has been pioneering in mobile phone audio
for decades,” says Heikki Sassi, head of the audio
technology management team for Lumia. “To take
the imaging experience to the next level in videos,
audio has become a very important part of the
The Nokia Lumia 1520 includes the Nokia Rich
Recording capability found in the Lumia 1020, and
it goes a step further with the use of four high-
performance digital microphones for directional
stereo recordings.
Directional recording enhances the clarity of your
recordings by rejecting the sounds outside the
direction of capture. In other words, the sounds in
front of the camera are recorded in best possible
“Previously, if you wanted audio recording
capabilities like this you would need to buy a
professional video camera or external mics to do
the job. Nokia is the first company to introduce
four microphone directional stereo recording in a
camera phone,” Heikki says.

Directional stereo recording
In the Lumia 1020, you have Nokia Rich
Recording combined with two mics for omni-
directional recording to take in the sound all
around you (whether in front of you or behind
you). With the four microphone directional stereo
recording included in the Lumia 1520, you are
recording the sounds in the front of the camera,
while attenuating unwanted sounds from other

“You will get more of the action
with less distraction,” says

There is also a great sense of direction in your
recordings, such as someone walking around you.
“You can easily tell which direction sounds are
coming from – either with headphones or
speakers – it adds a sense of immersion, and
being there.”

At the same time, those four mics are used for
other purposes in the device, including advanced
noise-reduction in wideband and standard voice calls.

Making the most of all four mics
You might think that having four mics built in to
Lumia 1520 poses a problem for how to properly
hold the device. You don’t want to accidentally
cover up one of the microphones. Heikki assures
us that the mics have been positioned so that
they are ergonomically in the best place possible,
and that you won’t inadvertently block them with
your fingers.

Finally, the capabilities of Nokia Rich Recording
open up great possibilities for the app developer
community, too. “We have thought about this and
we are looking into possibilities for unlocking the
capabilities for app developers too”, Heikki tells
Learn more about high quality audio recording in
Nokia Lumia smartphones in this whitepaper.

By Nokia Conversations


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