The Secret Genius of Modern Life S01E03 Virtual Assistant (1280x720p HD, 50fps, soft Eng subs)
Hannah Fry delves into the inner workings of virtual assistants like Amazon's Alexa, Google Assistant and Siri, which are now found in almost half of all UK homes. / / Hannah goes behind the scenes with Alexa's chief scientist, reveals how secret technology invented to hunt U-boats led to their targeted hearing and discovers modern wireless networks' debt to a 1940s Hollywood star.
First broadcast: 24 November 2022
Duration: 1 hour
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Media info:
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L3.2
Format settings : CABAC / 4 Ref Frames
Format settings, CABAC : Yes
Format settings, Reference frames : 4 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 58 min 45 s
Bit rate mode : Variable
Bit rate : 5 064 kb/s
Maximum bit rate : 7 605 kb/s
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Variable
Frame rate : 50.000 FPS
Minimum frame rate : 25.000 FPS
Maximum frame rate : 90 000.000 FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.110
Stream size : 2.08 GiB (97%)
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Codec configuration box : avcC
Audio
ID : 2
Format : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
Codec ID : mp4a-40-2
Duration : 58 min 45 s
Bit rate mode : Variable
Bit rate : 129 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Frame rate : 46.875 FPS (1024 SPF)
Compression mode : Lossy
Stream size : 53.8 MiB (2%)
Language : English