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Windows Media 9 Audio Codec - loc.gov
https://www.loc.gov/preservation/digital/formats/fdd/fdd000092.shtml
This codec . . . supports VBR [variable bit rate] audio that enables even higher quality audio at smaller file sizes. Windows Media Audio 9 is backward-compatible with previous Windows Media Audio-compatible decoders." The site indicates that higher quality is provided by WMA9_PRO. Multiple channels. None. Functionality beyond normal rendering.
About the Windows Media Codecs - Win32 apps | …
https://docs.microsoft.com/en-us/windows/win32/medfound/about-the-windows-media-codecs
Windows Media Audio 9 This codec samples audio at 44.1 or 48 kilohertz (kHz) using 16 bits, similar to the current CD standard, offering CD quality at data rates from 64 to 192 kilobits per second (Kbps). The resulting sound quality is 20 percent better than audio sampled with Windows Media Audio 8 at equivalent data rates.
Windows Media 9 Professional Audio Codec - loc.gov
https://www.loc.gov/preservation/digital/formats/fdd/fdd000093.shtml
Fidelity (high audio resolution) Better fidelity than WMA_WMA9, not as good as WMA_WMA9_LL. From the codecs page at the Microsoft Windows Media web site (consulted September 7, 2010): "This codec captures full-resolution 24-bit/96-kilohertz (kHz) audio . . . for streaming or download-and-play delivery at 128 to 768 Kbps." This codec supports ...
Technology Spotlight: Microsoft Windows Media Audio 9
https://www.mixonline.com/recording/technology-spotlight-microsoft-windows-media-audio-9-365408
The Windows Media 9 Series audio codecs run the range of encodingoptions, from WMA9 Voice for playback at 20 Kilobits per second to WMA9Lossless for archival purposes, approaching 3:1 compression.
Windows Media Audio - Wikipedia
https://en.wikipedia.org/wiki/Windows_Media_Audio
WMA9 PRO - Pioneer Electronics
https://www.pioneerelectronics.com/pio/pe/images/portal/cit_3424/279393103VSX-515-Tear-sheet.pdf
WMA9 PRO • Pioneer Hybrid Amplifier Design • Virtual Surround Back Mode • Equal High Power for All Six Channels (110W x 6) • Built-in DTS *1-ES Discrete/DTS 96/24/NEO:6/ Dolby *2 Digital EX/Dolby Pro Logic IIx Decoder • Double-Precision 48-bit Motorola DSP • WMA9 Pro *3 Compatible • 5.1-Channel Input (DVD) • DVD-Audio/SACD Ready
MP3' Tech - WMA 9 vs MP3
http://www.mp3-tech.org/tests/wma9/index.html
In september 2002 Microsoft released the 9th release of its Windows Media technology, featuring Windows Media Audio (WMA) 9. In order to demonstrate how good its WMA is, Microsoft provided an online comparison page allowing to hear both WMA and MP3. This comparison is featuring two test samples encoded at several bitrates.
WMA9 Decoder - Techno Mathematical Co., Ltd.
https://www.tmath.co.jp/en/product/en_sw_wma9_dec/
WMA9 Decoder. Product Overview. WMA is a lossy compression audio codec advocated by Microsoft and is widely used as a distribution and distribution format for music data. This product is a software IP with low power consumption, low memory consumption, and can be embedded in a short period of time, suitable for products such as portable music ...
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