Q1. Compare two recent Smart Devices in terms of graphics, sound, video, softwar

Question

Q1. Compare two recent Smart Devices in terms of graphics, sound, video, software and hardware capabilities. You also need to include some images or illustration as examples of such features.

Note that you need to reference all your resources, and choose your own preference between the two devices.

The following is a list of smart devices types that you can choose from: Tablets Smart TVs In-Car Entertainment Systems Smart Wearable Devices Smart Cameras (Video or Still) Health Monitoring Devices

Q2. How does psychoacoustics assist in lossy compression strategies?

NOTE please no plagiarism

Explanation / Answer

1.http://www.vidyo.com/wp-content/uploads/The-Internet-of-Things-A-Study-in-Hype-Reality-Disruption-and-Growt....pdf

http://kpcbweb2.s3.amazonaws.com/files/85/Internet_Trends_2014_vFINAL_-_05_28_14-_PDF.pdf?1401286773

2.

The psychoacoustic model provides for high quality lossy signal compression by describing which parts of a given digital audio signal can be removed (or aggressively compressed) safely — that is, without significant losses in the (consciously) perceived quality of the sound.

It can explain how a sharp clap of the hands might seem painfully loud in a quiet library, but is hardly noticeable after a car backfires on a busy, urban street. This provides great benefit to the overall compression ratio, and psychoacoustic analysis routinely leads to compressed music files that are 1/10th to 1/12th the size of high quality masters, but with discernibly less proportional quality loss. Such compression is a feature of nearly all modern lossy audio compression formats. Some of these formats include Dolby Digital (AC-3), MP3, Opus, Ogg Vorbis, AAC, WMA, MPEG-1 Layer II (used for digital audio broadcastingin several countries) and ATRAC, the compression used in MiniDisc and some Walkman models.

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