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Yes. Content encoded with the Windows Media Audio version 8 codec can be decoded by previous versions of the Windows Media Audio codec.
No. Windows Media 8 Encoding Utility is intended for creating on-demand files only.
Yes. Windows Media 8 Encoding Utility supports the extended .avi format specification and can encode .avi files that are larger than 2 gigabytes (GB).
No. But you can create your own
Windows Media 8 Encoding Utility will use the defaults for each setting. For example, the Windows Media Audio version 8 and Windows Media Video version 8 codecs would be used, the
The Windows Media Audio version 8 codec improves audio quality by 30 to 50 percent over the Windows Media Audio version 7 codec. For example, it offers the same audio quality as .mp3 but in a file that is one-third the size. It can also provide audio streams that are near CD-quality over a 48 Kbps connection. The Windows Media Video version 8 codec provides video quality improvements of 20 to 30 percent for broadband Internet users compared with the Windows Media Video version 7 codec.
No. If you want to encode your audio or video at a different bit rate than what you encoded the first time, encode the original uncompressed source file (with a .wma, .wmv, .avi, or .wav file name extension) again and specify the bit rate you want with the –v_bitrate option for video or the –a_setting option for audio.
No. If the clip, or some segment of the clip, is easy to encode for the target bit rate (for example, the bit rate setting is very high and the resolution is low) then the codec will not require all of the available
No. Frames are not dropped when you encode using the –v_mode 3 option. Therefore, if the clip, or some segment of the clip, is difficult to encode for the target bit rate (for example, the bit rate setting is low and the resolution is high) then the codec will require more bandwidth to compress the content.
Clipping is the first step and is performed on the source. By clipping first, your encoding process will be more efficient because you eliminate any unwanted portions of the video before encoding them. Preprocessing, such as applying
Windows Media 8 Encoding Utility enables you to perform two-pass constant bit rate video encoding and variable bit rate encoding that is either based on quality or bit rate.
No. Windows Media Encoder 7 does not currently support Windows Media Audio version 8 and Windows Media Video version 8 codecs. The next version of Windows Media Encoder will support these or other future versions of the codecs, as well as two-pass constant bit rate video encoding and quality- and bit-rate-based variable bit rate encoding.
No. Windows Media 8 Encoding Utility does not support multiple bit rate encoding. Windows Media Encoder 7 does support multiple bit rate encoding, and includes several profiles to suit your needs.
No. Converting from .mp3 to .wav causes quality degradation. Use Windows Media Encoder 7 to encode your .mp3 files. Use the original uncompressed content when encoding with Windows Media 8 Encoding Utility.
The popping sound you hear is a brief discontinuity in the audio track caused by a reading error in Windows Media Player 7. This problem is not common and is usually inaudible. Until an update is available to fix the problem, use Windows Media Player 6.4 to play any clips where the popping sound is noticeable.
Yes. Some of the -v_quality settings are mapped internally to the same image quality value. To see a change in your image quality, increase or decrease your -v_quality setting by larger increments.
If you set a large buffer but are encoding content that is not very complex, the codecs may not use all of the buffer space that was allocated. In the rare case that you set a very small buffer, the codecs may need a larger buffer space than what you allocated. The effective buffering delay is either the buffer that you set or that the codecs actually used, whichever is larger.
Occasionally, encoded video will be upside down when it is played in Windows Media Player because capture card drivers interpret the packed YUV file format in different ways.
Windows Media 8 Encoding Utility enables you to set a registry key that will flip the video before encoding it so that it displays correctly. By default this feature is disabled. To enable this feature, use the registry editor to locate the registry key HKEY_CURRENT_USER\SOFTWARE\Microsoft\Scrunch\WMVideo\Vertical Flip Packed YUV, and then set the DWORD value of this registry key to 1.
Note You should only edit the registry if you are an advanced user. It is strongly recommended that you do not edit any other values in the registry. For more information about the registry, see Windows Help.