Future Media Standards & Guidelines

Audio Standards Table v1.55

1. Audio standards

AUDIO band Codec Max bit/ sample rates Min bit/ sample rates Comments
Realplayer/Helix nb G2-v10 44 kbps/ 32 kHz 8.5 kbps/ 11.025 kHz (speech only) You MUST include at least a 32kbps and 20kbps substream
Windows Media/Audio (WMA) nb WMA v9 48 kbps/ 32 kHz 8.5 kbps/ 11.025 kHZ (speech only) You MUST include at least a 32kbps and 20kbps substream (check with SBS)
Realplayer/Helix (stereo) bb v9/10 96 kbps/ 44.1 kHz na Single Rate
Realplayer/Helix (mono) bb v9/10 64 kbps/ 44.1 kHz na Single Rate
Windows Media/Audio (WMA) (stereo) bb WMA v9 pro 96 kbps/ 44.1 kHz na Single Rate
Windows Media/Audio (WMA) (mono) bb WMA v9 pro 64 kbps/ 44.1 kHz na Single Rate

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2. Video standards

VIDEO band/ aspect ratio Codec Max bit rate Frame size Frame rate Comments
Realplayer/ Helix nb ws (16:9) v9/10 80 kbps 256 x 144 15 fps Any narrowband stream over 34kbps MUST include a 34kbps substream (multiple bit rate)
Windows Media (WMV) nb ws (16:9) WMV V9 Pro 80 kbps 256 x 144 15 fps Any narrowband stream over 34kbps MUST include a 34kbps substream (multiple bit rate – check with SBS)
Realplayer/ Helix bb ws (16:9) v9/10 225 kbps (single rate) 400 x 224 25 fps If you are using the NM Broadband console then you SHOULD use 384x216
Windows Media (WMV) bb ws (16:9) WMV V9 Pro 225 kbps (single rate) 400 x 224 25 fps If you are using the NM Broadband console then you SHOULD use 384x216
4:3 settings are deprecated – 16:9 should be used where possible
Realplayer/ Helix nb (4:3) v9/10 80 kbps 192 x 144 15 fps Any narrowband stream over 34kbps MUST include a 34kbps substream (multiple bit rate)
Windows Media (WMV) nb (4:3) v9 pro 80 kbps 192 x 144 15 fps Any narrowband stream over 34kbps MUST include a 34kbps substream (multiple bit rate – check with SBS)
Realplayer/ Helix bb (4:3) v9/10 225 kbps (single rate) 320 x 240 25 fps  
Windows Media (WMV) bb (4:3) v9 pro 225 kbps (single rate) 320 x 240 25 fps  

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3. Download – audio

MP3 (stereo music) dn dn pcm 128 kbps/ 44.1 kHz CBR
Mp3 (mono speech) dn dn pcm 64 kbps/ 44.1 kHz CBR
AAC (stereo music) dn dn pcm 128 kbps/ 44.1 kHz CBR – AAC files MUST only be used with a counterpart MP3 file
AAC (mono speech) dn dn pcm 64 kbps/ 44.1 kHz CBR – AAC files MUST only be used with a counterpart MP3 file

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4. Download – Video (Flash)

See also section 3.6 of the Multimedia Plug-in Content Standards

Flash Download only v7 or later 225 kbps

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5. Key

dn pcm
download podcast maker
ws
wide screen
fps
frames per second
kbps
kilo bit per second
na
not applicable
nb
narrowband
bb
broadband
CBR
constant bitrate
SBS
Siemens Business Services (in this case Internet Operations)

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