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The 'Music' category is merely a guideline on commercialized uses of a particular format, not a technical assessment of its capabilities. For example, MP3 and AAC dominate the personal audio market in terms of market share, though many other formats are comparably well suited to fill this role from a purely technical standpoint.
A lossless audio coding format reduces the total data needed to represent a sound but can be de-coded to its original, uncompressed form. A lossy audio coding format additionally reduces the bit resolution of the sound on top of compression, which results in far less data at the cost of irretrievably lost information.
Advanced Audio Coding (AAC) is an audio coding standard for lossy digital audio compression. It was designed to be the successor of the MP3 format and generally achieves higher sound quality than MP3 at the same bit rate. [4] AAC has been standardized by ISO and IEC as part of the MPEG-2 and MPEG-4 specifications.
The original WMA codec, known simply as WMA, was conceived as a competitor to the popular MP3 and RealAudio codecs. [2] [3] WMA Pro, a newer and more advanced codec, supports multichannel and high-resolution audio. [4] A lossless codec, WMA Lossless, compresses audio data without loss of audio fidelity (the regular WMA format is lossy). [4]
WMA Professional 10 1-pass CBR, 48 kbit/s; Nero HE-AAC May 26, 2006-q 0.2; WMA Standard 9.2 Quality-Based VBR, Q10; iTunes AAC 7.0.2.16 48 kbit/s, CBR; Various 20 22-34 Nero HE-AAC: WMA Professional and aoTuV tied for second Sebastian Mares: 2007 July multiple ~64 Ogg Vorbis AoTuV 5 Beta-q 0; WMA Professional 10 1-pass CBR, 64 kbit/s; Nero HE ...
Over the years, the stock market has seen many bull runs, which happen on average every six years. The longest bull market to date started in March 2009 and ran through February 2020. The S&P 500 ...
AAC-LC, HE-AAC: AAC-LC, HE-AAC v1 MP3: Lossy: 1991-12 Expired patents [88] Yes Yes MPEG-1 Audio Yes Yes [β] Yes Yes No No AC-3: Lossy: 1991-02 Expired patents Yes Yes [91] Yes Yes Yes Yes Private No No E-AC-3: Lossy: 2005-02 Patent encumbered QuickTime [γ] Yes Yes Yes No No No No No DTS: Lossy: 1993-06 Proprietary: Yes Yes No Yes Yes No ...
Widow-and-orphan stock: a stock that reliably provides a regular dividend while also yielding a slow but steady rise in market value over the long term. [13] Witching hour: the last hour of stock trading between 3 pm (when the bond market closes) and 4 pm EST (when the stock market closes), which can be characterized by higher-than-average ...