Nokia has again updated the teaser page, on it US website, for the upcoming Nokia Lumia 928. A new picture of the device confirms, as we suggested yesterday, that the Nokia Lumia 928 has a Xenon flash, in place of the more usual LED flash. There's also a new comparison video, featuring some New York buskers, showcasing the superior audio capture performance of the Lumia device, when compared to the Samsung Galaxy SIII.

The superior audio capture is due to the presence of High Amplitude Audio Capture (HAAC) microphones. Nokia first used these microphones in the Nokia 808 PureView to power its widely praised Rich Recording. The key benefit of the HAAC microphones is that they are capable of capturing audio over a broader range of frequencies even at high volume levels (140 dB, compared to 120 dB for most smartphones), resulting in more natural sounding, and distortion free, recordings. The benefits of this will be apparent in all recordings, but are most noticeable in loud environments, such as at a music concert. 

Nokia Lumia 928 pictured

The updated picture on the Lumia 928 teaser page shows the back of the device for the first time. The most notable feature is the presence of a Xenon flash, which has a number of advantages over the standard LED based flash used on most smartphones, including the Nokia Lumia 920. The two most important advantages are brighter and shorter illumination period, both of which give a better ability to "freeze" subjects being captured (because a shorter exposure time can be used).

The back of the device also appears to be pillowed, with a noticeable tapering off towards the edges. This should make the handset feel thinner in the hand than might otherwise be the case. There's also a microphone located to the right of the Xenon flash, two additional microphones are located on the top and bottom of the device, confirming that the Nokia Lumia 928, like the Lumia 920, has three microphones in total.

Do note that, despite the trio of microphones, video capture on the existing Lumia devices currently only records a mono audio track, albeit one of high quality. This could theoretically be changed in a software update and may be different on the Nokia Lumia 928.

Comparison video

The comparison video offers an example of Lumia 928's HAAC microphone's audio capture when recording video. It then compares the audio with that produced from the Galaxy SIII. The Galaxy SIII is last generation, but similar microphones are used in the Samsung Galaxy S4 and other leading smartphones.

The video highlights the Lumia 928's superior audio capture showing how it retains audio quality under high volume recording with no distortion. Do remember that this is a manufacturer produced video, which will, quite understandably, play up those parts of the comparison that favour their own device.