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Formatting video for local playback

Generated by Clearspace on 2008-05-18-05:00

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Sampling \- The act of taking a portion of one sound recording, the sample, and reusing it as an instrument or
element of a new recording.

Stereo Sound \- Audio consisting of two channels, left and right.

Streaming \- A method for making audio, video and other multimedia available in near realtime, that is the user can
begin to watch or hear the content of a downloaded media file after only a short delay. Previously it was necessary to
download an entire file before playing it.

Transcoding \- Encoding an already compressed data stream to a different codec.

Abreviations

3GP - A multimedia container format defined by 3GPP for use on 3G mobile phones. It is a simplified version of
MPEG-4 Part 14 (MP4). 3GP files have the filename extension .3gp or .3g2. 3GP stores video streams as MPEG-4
or H.263, and audio streams as AMR-NB or AAC-LC formats.

3GPP \- 3rd Generation Partnership Project.

3ivx \- A commercial video codec suite that allows the creation of MPEG-4 compliant data streams.

AAC \- Advanced Audio Coding.

AAC-LC \- Advanced Audio Coding. Low Complexity.

AC3 \- Audio File Format.

AIFF \- Audio Interchange File.

AMR \- Adaptive Multi-Rate (NB = NarrowBand, WB = WideBand).

AVI \- Audio Video Interleave Container File.

CBR \- Constant Bit Rate.

DivX \- Video Codec. DivX has the ability to compress lengthy video segments into small sizes while maintaining
relatively high visual quality. DivX uses lossy MPEG-4 Part 2 compression.

ETSI \- European Telecommunications Standards Institute.

FLAC \- Free Lossless Audio Codec.

H.263 \- Video Codec. Predecessor of H.264.

H.264 \- Also known as MPEG-4 AVC (Advanced Video Coding), is a video compression standard that offers
significantly greater compression than its predecessors, for example, MPEG-4 ASP (Advanced Simple Profile).

M4A \- MPEG-4 Audio Layer.

MOV \- QuickTime Video Clip.

MP3 \- MPEG Audio Stream, Layer 3.

MP4 \- MPEG-4 Video File.

Summary of Contents for D750

Page 1: ...competence required to follow this document extends only to basic computer skills as all concepts are fully explained Prior experience with editing or formatting digital video is advantageous Sony Ericsson mobile phones that are covered by this document Generic names series Sony Ericsson Mobile Phones K800 K800i K800c K800a K790 K790i K790c K790a K750 K750i K750c D750 K610 K610im K610i K610c K618i...

Page 2: ... track up to the point just before distortion or clipping will occur Bit Rate The number of bits used to compress a data stream typically measured in kilobits per second kbps Codec COmpressor DECompressor an algorithm that compresses and decompresses data streams Container The package that video and audio streams are placed in to ensure synchronised playback Data Stream The encoded video data Deco...

Page 3: ... as MPEG 4 or H 263 and audio streams as AMR NB or AAC LC formats 3GPP 3rd Generation Partnership Project 3ivx A commercial video codec suite that allows the creation of MPEG 4 compliant data streams AAC Advanced Audio Coding AAC LC Advanced Audio Coding Low Complexity AC3 Audio File Format AIFF Audio Interchange File AMR Adaptive Multi Rate NB NarrowBand WB WideBand AVI Audio Video Interleave Con...

Page 4: ...ofile features Trademarks and aknowledgements Vegas is a trademark or registered trademark of Sony Corporation Microsoft and Windows are either registered trademarks or trademarks of Microsoft Corporation in the United States and or other countries Apple QuickTime and Final Cut are a trademarks of Apple Computer Inc registered in the U S and other countries Premiere After Effects and Audition are ...

Page 5: ...er of channels present in the audio A single channel is a mono recording while two channels afford stereo sound Increasing channels further to 4 or 5 allows fully directional surround sound for example 5 1 surround sound uses 5 channels in a digital audio stream Compression To reduce storage requirements and improve portability data streams in digital video are usually compressed Each stream is pa...

Page 6: ...compression with AAC compression for audio Similarly WMV files are Advanced Systems Format ASF containers using WMV video streams and WMA audio streams AVI files are Audio Video Interleave containers that use Video For Windows compatible codecs for video streams and generally WAV or MP3 audio streams Formatting video for Sony Ericsson phones This section contains specific details and recommendatio...

Page 7: ...sson phones only support level 0 With some customisation of the suggested values Sony Ericsson phones can also support modified levels up to level 3 There are many implementations of the MPEG 4 visual codec with quite extreme differences in encoding quality Available MPEG 4 codecs include DivX XviD 3ivx Apple MPEG 4 Nero MPEG 4 and many standard implementations found in various video editing softw...

Page 8: ... 15 15 Bit rate kbps 64 64 Optimal video XviD MPEG 4 Visual Simple Modified Level 2 XviD MPEG 4 Visual Simple Modified Level 3 Video resolution 176x144 QCIF 320x240 QVGA Frame rate fps 20 25 Bit rate kbps 140 300 Basic audio LC AAC LC AAC Channels 2 2 Sample rate KHz 44 1 48 44 1 48 Bit rate kbps 64 64 Optimal audio Apple Nero LC AAC Apple Nero LC AAC Channels 2 2 Sample rate KHz 44 1 48 44 1 48 B...

Page 9: ...n MP4 container it is recommended to output multimedia video in the MOV format The MOV format allows the multimedia video to be easily opened by Quicktime Pro Other considerations The following is general advice to achieve better results when formatting multimedia video for Sony Ericsson phones Sony Ericsson phone screens have a 4 3 aspect ratio The visual resolution of the source media may be of ...

Page 10: ...solution and aspect ratio in order to address the issues of correcting them within this example Note Please consult the relevant licenses for any software before using it for commercial and or personal purposes Software Required software The following software is needed to complete this tutorial Microsoft Windows 2000 or Microsoft Windows XP as operating system Make sure the latest service pack is...

Page 11: ...h 16 4 Click the Ok button to create the new project Importing the source video and formatting track properties 1 Return to the menu and select File Import Media 2 Browse to your working directory and open the SEexample avi file 3 Select SEexample avi in the Project Media window and drag it to the track list the empty panel on the left above the Project Media window The video and audio tracks with...

Page 12: ...t or press ctrl e The Save exported file as dialog will appear 3 Set the Export option to Movie to MPEG 4 4 Now click the Options button and the MPEG 4 Export Settings dialog will appear 5 Set the File Format option to MP4 6 Ensure the topmost drop down menu is set to Video and set the following Video Format MPEG 4 Improved Data Rate 140 kbits sec Image Size Current Frame Rate Current Key Frame Ev...

Page 13: ...ality at which the multimedia video content is delivered Those with no prior experience of editing or formatting digital multimedia video will hopefully find the background information sufficiently enlightening such that they can understand the more specific requirements of Sony Ericsson phones and feel confident about the task of formatting multimedia video for them Software developers can access...

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