helix mobile producer on-demand user's guide - RealPlayer

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Helix Mobile Producer On-Demand User’s GuideStandard and Professional versionsHelix Mobile Producer On-Demand gives you the ability to encode streamingaudio or video presentations as files. Helix Mobile Producer Live is deliveredin two versions, Standard and Professional. The Professional edition includesthe following additional features:• Command-line interface• SNMP monitoring• Batch encoding through the graphical interfaceWhy Use Helix Mobile Producer On-Demand?When it comes to 3GPP <strong>mobile</strong> encoding, Helix Mobile Producer On-Demanddoes it all. This product is ideal for on-demand content and will convert mostcommon types of video and audio to standards-compliant 3GPP formats. Thissection discusses the features and capabilities of this software in terms of twokey areas: quality and productivity.QualityHelix Mobile Producer On-Demand provides support for a range of encodingtechnologies that enable high-quality media delivery, using the featuresdescribed in the following paragraphs.MPEG-4 SVP (Simple Video profile) videoStream or download high-quality video to users’ cell phones or PDAs, at bitrates from 10 to 384 kilobits per second (Kbps). Helix Mobile Producer On-Demand supports the following MPEG-4 SVP levels:level 0level 0blevel 1level 2:level 3:up to 64 Kbpsup to 128 Kbpsup to 64 Kbpsup to 128 Kbpsup to 384 KbpsH.263 Profile 0 videoThis is another standards-based codec that you can use to deliver good-qualityvideo at bit rates from 10 to 384 Kbps, but without the licensing requirement2
CHAPTER 1: Introductionof MPEG-4. Helix Mobile Producer On-Demand supports the following H.263Profile 0 levels:level 10:level 20:level 30:level 45:up to 64 Kbpsup to 128 Kbpsup to 384 Kbpsup to 128 KbpsH.264Helix Mobile Producer On-Demand supports the following H.264 baselineprofile levels:level 1:level 1b:level 1.2:level 1.3up to 64 Kbpsup to 128 Kbpsup to 384 Kbpsup to 768 Kbps.Note that the encoder limit for thiscodec is 384 kbps. 768 kbps reflects thelimit for the levelVariable-bit-rate encodingThis feature enables the video codec to vary the bit rate throughout a clip,depending on the type of content being encoded. With variable-bit-rateencoding, the more action there is in a scene, the more bits are used for thatscene. This makes for a more consistent quality of video encoding fordownloadable content, while keeping download times as short as possible.2-pass video compressionDouble-pass encoding increases output quality by analyzing video data beforeencoding the input video.AMR audioUsing this feature, you can deliver high-caliber voice clips at bit rates rangingfrom 4,750 to 12,200 bps.AAC-LC audioAAC Plus audioEnhanced AAC Plus audioThis feature enables you to deliver music and mixed-audio content at bit ratesfrom 8 to 128 Kbps. AAC provides better-quality audio than does MP3 at thesame bit rate.3
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