BBC Ocean Giants S01E03 Voices of the Sea 720p w/subs [aulaoron]

BBC Ocean Giants: S01E03 Voices of the Sea. 720pp x264 aac mp4 w/subtitles [aularon]

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Synopsis
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Whales and dolphins are nature's supreme vocalists, with a repertoire to put an opera singer to shame. The mighty sperm whale produces deafening clicks in its blowhole which it uses to locate giant squid two miles down in the ocean abyss, while migrating narwhals use similar sounds to pinpoint vital breathing holes in Arctic ice-floes.

The pink boto dolphin creates bat-like ultrasonic clicks to 'see with sound' and to catch fish in the murky waters of the Amazon River, and also uses whistles and chirps for social conversations.

Killer whales in the North Sea use wolf-like howls to round up the herring shoals which they feed on, and they and other dolphins also use percussive tail slaps and splashing leaps to signal to each other. One group of bottlenose dolphins in Brazil has even learned to communicate with fishermen in a unique partnership.

But the most famous and mysterious voice of all the Ocean Giants surely belongs to male humpback whales, whose haunting operatic performances may last several hours and seem to be about singing purely for the sheer pleasure of making music.


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URL
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http://www.bbc.co.uk/programmes/b01452jz


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Technical Details
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General
Complete name : BBC.Ocean.Giants.S01E03.Voices.of.the.Sea/Ocean_Giants_-_3._Voices_of_the_Sea_b01452jz_default.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom
File size : 1 014 MiB
Duration : 58mn 32s
Overall bit rate : 2 422 Kbps
Movie name : Ocean Giants: Voices of the Sea
Album : Ocean Giants
Track name/Position : 3
Track name/Total : 0
Performer : Ocean Giants
Genre : Factual,Science & Nature
Recorded date : 2011-08-28T21:00:00+01:00
Tagged date : UTC 2011-08-28 23:06:30
Writing application : Lavf53.6.0
Cover : Yes
Comment : Recorded using get_iplayer, by Aularon.
rtng : 2
stik : 1
desc : Documentary taking a look at whales and dolphins, nature's supreme vocalists. Species on show include the mighty sperm whale and the Amazon boto dolphin.
tvnn : BBC One
tvsh : Ocean Giants
tven : b01452jz
catg : Factual,Science & Nature
tves : 3

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 6 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 58mn 32s
Bit rate mode : Variable
Bit rate : 2 322 Kbps
Maximum bit rate : 3 500 Kbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 25.000 fps
Standard : PAL
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.101
Stream size : 972 MiB (96%)

Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : HE-AAC / LC
Codec ID : 40
Duration : 58mn 32s
Bit rate mode : Constant
Bit rate : 96.0 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz / 24.0 KHz
Compression mode : Lossy
Stream size : 39.7 MiB (4%)