AAC to WMV
Convert AAC to WMV, AAC to WMV Converter
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AAC to WMV Converter converts AAC to WMV. The software is an ALL-IN-ONE audio converter that supports more than 100 audio and video files.
AAC to WMV Converter supports batch conversion and, is full compatible with Vista and Windows 7.
What is AAC?
AAC has been standardized by ISO and IEC, as part of the MPEG-2 & MPEG-4 specifications. The MPEG-2 standard contains several audio coding methods, including the MP3 coding scheme. AAC is able to include 48 full-bandwidth (up to 96 kHz) audio channels in one stream plus 15 low frequency enhancement (LFE, limited to 120 Hz) channels and up to 15 data streams. AAC is able to achieve indistinguishable audio quality at data rates of 320 kbit/s (64kbit/s/channel) for five channels. The quality is close to CD also at 96 kbit/s (48kbit/s/channel) for stereo.
AAC's best known use is as the default audio format of Apple's iPhone, iPod, iTunes, and the format used for all iTunes Store audio (with extensions for proprietary digital rights management).
AAC is also the standard audio format for Sony's PlayStation 3 and is supported
by Sony's Playstation Portable, latest generation of Sony Walkman, Sony Ericsson
Walkman Phone, Nintendo's Wii (with the Photo Channel 1.1 update installed for
Wii consoles purchased before late 2007) and the MPEG-4 video standard. HE-AAC
is part of digital radio standards like DAB+ and Digital Radio Mondiale.
What is WMV?
A WMV file is in most circumstances encapsulated in the Advanced Systems Format (ASF) container format. The file extension .WMV typically describes ASF files that use Windows Media Video codecs. The audio codec used in conjunction with Windows Media Video is typically some version of Windows Media Audio, or in rarer cases, the deprecated Sipro ACELP.net audio codec. Microsoft recommends that ASF files containing non-Windows Media codecs use the generic .ASF file extension.
The ASF container can optionally support digital rights management using a combination of elliptic curve cryptography key exchange, DES block cipher, a custom block cipher, RC4 stream cipher and the SHA-1 hashing function.
Although WMV is generally packed into the ASF container format, it can also be put into the AVI or Matroska container format. The resulting files have the .AVI and .MKV file extensions, respectively. WMV can be stored in an AVI file when using the WMV 9 Video Compression Manager (VCM) codec implementation. Another common way to store WMV in an AVI file is to use the VirtualDub encoder.
Windows Media Video (WMV) is the most recognized video format within the WMV family. Usage of the term WMV often refers to the Microsoft Windows Media Video codec only. Its main competitors are MPEG-4 AVC, AVS, RealVideo, DivX, and Xvid. The first version of the codec, WMV 7, was introduced in 1999, and was built upon Microsoft's implementation of MPEG-4 Part 2. Continued proprietary development led to newer versions of the codec, but the bit stream syntax was not frozen until WMV 9. While all versions of WMV support variable bit rate, average bit rate, and constant bit rate, WMV 9 introduced several important features including native support for interlaced video, non-square pixels, and frame interpolation. WMV 9 also introduced a new profile titled Windows Media Video 9 Professional, which is activated automatically whenever the video resolution exceeds 300,000 pixels (e.g., 528x576, 640x480 or 768x432 and beyond) and the bitrate 1000 kbit/s. It is targeted towards high-definition video content, at resolutions such as 720p and 1080p.
Convert AAC to WMV Related Topics: MXF to WMV, CDA to WMV, AC3 to WMV, UMX to WMV, QCP to WMV, CAF to WMV, ALAC to WMV, SOL to WMV, GSM to WMV, ADTS to WMV, FLAC to WMV, AIFF to WMV, MPP to WMV, OMA to WMV, RMJ to WMV, MKA to WMV, MIDI to WMV, WV to WMV, MPGA to WMV, RAM to WMV, MPC to WMV, VQF to WMV, RMI to WMV, DTS to WMV, F4A to WMV, M4R to WMV, OGA to WMV, OGG to WMV, AIFC to WMV
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