{"id":1025,"date":"2020-03-28T22:59:20","date_gmt":"2020-03-28T22:59:20","guid":{"rendered":"http:\/\/mp4gain.com\/mp4gain\/?p=1025"},"modified":"2020-03-28T22:59:20","modified_gmt":"2020-03-28T22:59:20","slug":"wma-everything-about-wma-2","status":"publish","type":"post","link":"https:\/\/mp4gain.com\/mp4gain\/wma-everything-about-wma-2\/","title":{"rendered":"WMA &#8211; Everything about WMA (2)"},"content":{"rendered":"<p>Windows Media Audio Professional: Also known as WMA Pro is a more advanced WMA-based lossy codec. Like traditional WMA it has a 24-bit sample size but uses a maximum sample rate of 96000Hz, instead of 48000 from WMA, and up to 8 channels (thus enabling 7.1 sound) instead of 6 from WMA. It also incorporates DRC (dynamic range compression). In addition, as of version 9 of WMA Pro there is a version of WMA Pro with low bitrate and another with low delay for bidirectional applications.<\/p>\n<p><a href=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/03\/WMA.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-1026\" src=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/03\/WMA.png\" alt=\"\" width=\"512\" height=\"512\" srcset=\"https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/03\/WMA.png 512w, https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/03\/WMA-150x150.png 150w, https:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/03\/WMA-300x300.png 300w\" sizes=\"auto, (max-width: 512px) 85vw, 512px\" \/><\/a><\/p>\n<p>Despite being superior to WMA and belonging to the giant Microsoft WMA, it has little commercial support. Except for the products of Microsoft Xbox 360 (video game console) and Zune (portable player) and the latest Toshiba and Motorola mobiles, few other systems can play it. This situation is expected to change when WMV HD (Windows Media Video High Definition, a high-resolution video codec) is standardized, as WMV HD incorporates WMA Pro as an audio codec.<\/p>\n<p>Windows Media Audio LossLess: Typically known as WMA LossLess is a lossless codec for audio that is therefore in direct competition with other lossless encoding systems such as FLAC, Monkey&#8217;s Audio, or Apple LossLess. To achieve this lossless encoding, a 96Khz sample rate, a 24-bit PCM sample size and a variable bitrate are used depending on the complexity of the section to be encoded. It also provides up to 6 independent channels, so you can get 5.1 surround sound (5 speakers with one audio channel each plus a special channel for lower sounds that are played on a special speaker called a subwoofer). It achieves a compression of 50% on the original audio file (in CD-Audio format), although Microsoft (its creator) states that this compression can be up to 66% (that is, the resulting file would have a size that would be 33% of the original). An interesting feature is that WMA LossLess incorporates Dynamic Range Compression (DRC), which is a technique that aims to control the volume of the audio signal. Specifically, the volume of sounds with high volume (above a threshold) is reduced, and sounds with low volume are left as is. This is done because in noisy environments, if the volume is low, the low volume sounds are inaudible, while if the volume is high, the low volume sounds can be heard but the high volume sounds will be heard with an annoying volume. Thanks to DRC the high volume and low volume sounds can be heard at the same time, since the volume of high volume sounds is reduced but not the volume of low ones, then the general volume can be increased to a point where both are Audible and loud speakers are not annoying. Furthermore, this reduces the dynamic range of the signal.<\/p>\n<p>Windows Media Audio Voice: It is a voice-specific lossy compression format that was born to compete with existing ones such as CELP (Algebraic Code Excited Linear Prediction), Speex (freely distributed), G.711 or G.729. Like all voice codecs, they are designed for very low bitrates and for a bandwidth between 300 and 3400Hz (since the highest spectrum power of the human voice is in that frequency range). This in particular allows a constant bitrate (does NOT allow variable bitrate) of up to 20Kbps, a single mono channel and a sampling rate of up to 22.05Khz. It also solves a problem that most voice codecs have: If the encoded signal contains other types of sounds besides voice (since it is assumed that if a voice codec is used, it is because it is transmitting voice), such as music, encoding is not good, as music will have a broader spectrum than voice. WMA voice solves this lack by detecting which sections contain something other than human voice (music, some kind of effect &#8230;) and encodes that section with traditional WMA.<\/p>\n<p>The only version available so far, WMA 9 Voice, is used in Microsoft&#8217;s online gaming service Xbox Live, on mobile devices using Windows Mobile and on BBC internet streaming radio.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Windows Media Audio Professional: Also known as WMA Pro is a more advanced WMA-based lossy codec. Like traditional WMA it has a 24-bit sample size but uses a maximum sample rate of 96000Hz, instead of 48000 from WMA, and up to 8 channels (thus enabling 7.1 sound) instead of 6 from WMA. It also incorporates &hellip; <a href=\"https:\/\/mp4gain.com\/mp4gain\/wma-everything-about-wma-2\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;WMA &#8211; Everything about WMA (2)&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[257],"tags":[27118,27119,27120,27117,27122,27125,27126,27130,27128,27129,27132,27133,27131,27134,27136,27096,27121,27142,27141,27143,27124,27138,27140,27137,27135,27102,27139,27145,27144,27127,27123,27146,27110],"class_list":["post-1025","post","type-post","status-publish","format-standard","hentry","category-audio-normalizer","tag-can-iphone-play-wma-format","tag-can-itunes-play-wma","tag-can-itunes-play-wma-files","tag-can-itunes-play-wma-format","tag-does-itunes-play-wma-files","tag-does-itunes-support-wma-format","tag-does-youtube-accept-wma-format","tag-how-to-change-wma-format-to-mp3","tag-how-to-convert-wma-format-into-mp3","tag-how-to-convert-wma-format-to-mp3","tag-how-to-open-wma-format-file","tag-how-to-open-wma-format-in-windows","tag-how-to-play-wma-format","tag-how-to-remove-protected-wma-format","tag-is-wma-a-lossless-format","tag-is-wma-video-format","tag-itunes-play-wma","tag-was-bedeutet-wma-format","tag-was-heist-wma-format","tag-was-ist-wma-format","tag-what-does-wma-format-mean","tag-what-is-wma-audio-format","tag-what-is-wma-cd-format","tag-what-is-wma-file-format","tag-what-is-wma-format","tag-what-is-wma-format-used-for","tag-what-is-wma-music-format","tag-what-opens-wma-format","tag-what-wma-file-format","tag-whats-wma-format","tag-will-itunes-play-wma-files","tag-will-itunes-play-wma-format","tag-wma-which-format"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>WMA - Everything about WMA (2) - mp4gain.com<\/title>\n<meta name=\"description\" content=\"Windows Media Audio Professional: Also known as WMA Pro is a more advanced WMA-based lossy codec. Like traditional WMA it has a 24-bit sample size but uses a maximum sample rate of 96000Hz, instead of 48000 from WMA, and up to 8 channels (thus enabling 7.1 sound) instead of 6 from WMA. It also incorporates DRC (dynamic range compression). In addition, as of version 9 of WMA Pro there is a version of WMA Pro with low bitrate and another with low delay for bidirectional applications.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mp4gain.com\/mp4gain\/wma-everything-about-wma-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"WMA - Everything about WMA (2) - mp4gain.com\" \/>\n<meta property=\"og:description\" content=\"Windows Media Audio Professional: Also known as WMA Pro is a more advanced WMA-based lossy codec. Like traditional WMA it has a 24-bit sample size but uses a maximum sample rate of 96000Hz, instead of 48000 from WMA, and up to 8 channels (thus enabling 7.1 sound) instead of 6 from WMA. It also incorporates DRC (dynamic range compression). In addition, as of version 9 of WMA Pro there is a version of WMA Pro with low bitrate and another with low delay for bidirectional applications.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/mp4gain.com\/mp4gain\/wma-everything-about-wma-2\/\" \/>\n<meta property=\"og:site_name\" content=\"mp4gain.com\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/mp4gain\" \/>\n<meta property=\"article:published_time\" content=\"2020-03-28T22:59:20+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/03\/WMA.png\" \/>\n<meta name=\"author\" content=\"R. 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Like traditional WMA it has a 24-bit sample size but uses a maximum sample rate of 96000Hz, instead of 48000 from WMA, and up to 8 channels (thus enabling 7.1 sound) instead of 6 from WMA. It also incorporates DRC (dynamic range compression). 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