{"id":2888,"date":"2020-12-22T00:06:29","date_gmt":"2020-12-22T00:06:29","guid":{"rendered":"http:\/\/mp4gain.com\/mp4gain\/?p=2888"},"modified":"2020-12-22T00:06:29","modified_gmt":"2020-12-22T00:06:29","slug":"what-formats-are-used-to-represent-digital-audio","status":"publish","type":"post","link":"https:\/\/mp4gain.com\/mp4gain\/what-formats-are-used-to-represent-digital-audio\/","title":{"rendered":"What formats are used to represent digital audio?"},"content":{"rendered":"<p><strong>What formats are used to represent digital audio?<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone\" src=\"https:\/\/static1.makeuseofimages.com\/wp-content\/uploads\/2016\/05\/audio-formats-compare.jpg\" alt=\"Audio Formats\" width=\"1680\" height=\"840\" \/><\/p>\n<p>The format is used in two different ways.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone\" src=\"https:\/\/www.howtogeek.com\/wp-content\/uploads\/gg\/up\/sshot4d35411a6d953.jpg\" alt=\"Digital Audio Formats\" width=\"650\" height=\"200\" \/><\/p>\n<p>When using a specialized medium or recording method and special read \/ write devices, the concept of format includes both physical characteristics of a sound carrier: the dimensions of a cassette with a magnetic tape or disk, the tape itself, or a disc, recording method, signal parameters, encoding and error protection principles, etc. .P. When using a universal information medium of wide application, for example, a flexible computer or a hard disk, the format is understood only as a method of encoding a digital signal, the peculiarities of the arrangement of bits and words and the structure of service information; all the &#8220;low-level&#8221; part directly related to working with the media, in this case, remains under the control of the computer and its operating system.<\/p>\n<p>Of the specialized digital audio formats and media, the following are the best known today:<\/p>\n<p>CD (Compact Disc) is a 120mm or 90mm single sided optical laser read \/ write disc, containing a maximum of 74 minutes of stereo sound at 44.1 kHz sampling rate and 16 linear quantization bits. The system is offered by Sony and Philips and is called CD-DA (Compact Disc &#8211; Digital Audio). For error protection, Cross Interleaved Reed-Solomon code (CIRC) and Hamming code 8-14 modulation (Eight to Fourteen Modulation, EFM) are used. A distinction is made between stamped compact discs (CD) write-only (CD-R) and rewritable (CD-RW).<br \/>\nPCM decoder (PCM deck): a system for converting the digital audio signal into a pseudo-video signal compatible with popular video formats (NTSC, PAL \/ SECAM) and vice versa. PCM decoders are used in combination with home (VHS) or studio (S-VHS, Beta, U-Matic) VCRs, using them as read \/ write devices. The devices operate with 16-bit linear quantization at sample rates of 44.056 kHz (NTSC) and 44.1 kHz (PAL \/ SECAM) and can record a two- or four-channel digital signal. In fact, such a decoder is a modem (modulator-demodulator) for a video signal.<br \/>\nS-DAT (Fixed Head Digital Audio Tape &#8211; Fixed Head Digital Audio Tape) is a system similar to a conventional cassette recorder, in which recording and reading is performed by a block of thin film fixed heads in a 3.81 mm wide tape in a double-sided cassette with dimensions of 86 x 55.5 x 9.5 mm. It implements two- or four-channel 16-bit recording at 32, 44.1, and 48 kHz.<br \/>\nR-DAT (Rotating Head Digital Audio Tape) is a VCR-like system with cross-tilted rotating head recording. The most popular tape-based digital recording format, R-DAT systems are often referred to simply as DAT. The R-DAT uses a 73 x 54 x 10.5mm cassette, with a 3.81mm wide tape, and the cassette and tape system itself is very similar to a typical VCR. The basic belt speed is 8.15mm \/ s, the rotation speed of the main unit is 2000rpm. R-DAT operates with a two-channel signal (on some models, four channels) at sample rates of 44.1 and 48 kHz with 16-bit linear quantization and 32 kHz with 12-bit non-linear quantization. To guard against errors, a double Reed-Solomon code and modulation with an 8-10 code are used. Cassette capacity &#8211; 80. .240 minutes depending on speed and belt length. Domestic DAT recorders are usually equipped with a phonogram illegal copy protection system, which does not allow recording from the analog input at a frequency of 44.1 kHz, as well as direct digital copying in the presence of SCMS prohibition codes (Serial Code Managenent System). Studio tape recorders have no such restrictions.<br \/>\nDASH (Digital Audio Stationary Head) is a 6.3 and 12.7 mm wide magnetic tape recording system with fixed heads. Belt speed is 19.05, 38.1, 76.2 cm \/ sec. Implements 16-bit recording with sample rates of 44.056, 44.1 and 48 kHz from 2 to 48 channels.<br \/>\nADAT (Alesis DAT) is a proprietary system for recording eight-channel audio on S-VHS videotape, developed by Alesis. It uses linear quantization of 16 bits at 48 kHz, the capacity of the cassette is up to 60 minutes per channel. ADAT tape recorders can be cascaded so that a 128-channel synchronous recording system can be assembled.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>What formats are used to represent digital audio? The format is used in two different ways. When using a specialized medium or recording method and special read \/ write devices, the concept of format includes both physical characteristics of a sound carrier: the dimensions of a cassette with a magnetic tape or disk, the tape &hellip; <a href=\"https:\/\/mp4gain.com\/mp4gain\/what-formats-are-used-to-represent-digital-audio\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;What formats are used to represent digital audio?&#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":[1],"tags":[27534,27557,47076,27540,27574,27579,27551,25148,43041,29703,16420,27555,27528,27556,27533,16425,27570,27531,43029,27542,27569,43058,16426,27532,30945,43065,27578,29704,27587,27524,27527,27530,6903,27525,27564,27571,27529,57162,27589,27590,27595,27594,27539,27549,27577,27592,27550,27560,27537,27565,47077,27572,27559,27536,27596,6826,22956],"class_list":["post-2888","post","type-post","status-publish","format-standard","hentry","category-audio-video","tag-all-digital-audio-formats","tag-best-digital-audio-file-format","tag-best-digital-audio-file-formats","tag-best-digital-audio-formats","tag-best-digital-audio-output-format","tag-best-digital-audio-quality-format","tag-define-digital-audio-formats","tag-different-types-of-digital-audio-formats","tag-digital-audio-data-format","tag-digital-audio-encoding","tag-digital-audio-file-formats","tag-digital-audio-file-formats-explained","tag-digital-audio-file-formats-in-multimedia","tag-digital-audio-file-formats-pdf","tag-digital-audio-file-formats-pros-and-cons","tag-digital-audio-file-types","tag-digital-audio-format","tag-digital-audio-format-aac","tag-digital-audio-format-android-tv","tag-digital-audio-format-converter","tag-digital-audio-format-means","tag-digital-audio-format-mqa","tag-digital-audio-format-pcm","tag-digital-audio-format-pcm-or-auto","tag-digital-audio-format-pcm-or-s-pdif","tag-digital-audio-format-pcm-ou-spdif","tag-digital-audio-format-pcm-spdif","tag-digital-audio-format-pcm-vs-spdif","tag-digital-audio-format-spdif","tag-digital-audio-formats-comparison","tag-digital-audio-formats-examples","tag-digital-audio-formats-explained","tag-digital-audio-formats-guide","tag-digital-audio-formats-pdf","tag-digital-audio-interface-format","tag-digital-audio-output-formats","tag-digital-audio-recording-formats","tag-digital-audio-signal-format","tag-digital-audio-stream-formats","tag-digital-audio-supported-formats","tag-digital-audio-tape-formats","tag-digital-audio-transmission-formats","tag-digital-audiobook-format","tag-digital-output-audio-format-dts-neo-2-5","tag-digital-output-audio-format-pcm","tag-digital-output-audio-format-samsung-tv","tag-dolby-digital-audio-formats","tag-high-resolution-digital-audio-formats","tag-list-of-digital-audio-formats","tag-lossless-digital-audio-formats","tag-most-common-digital-audio-file-formats","tag-samsung-digital-audio-output-format","tag-types-of-digital-audio-file-formats","tag-types-of-digital-audio-formats","tag-understanding-digital-audio-formats","tag-what-are-digital-audio-formats","tag-which-digital-audio-format-is-best"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What formats are used to represent digital audio? - mp4gain.com<\/title>\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\/what-formats-are-used-to-represent-digital-audio\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What formats are used to represent digital audio? - mp4gain.com\" \/>\n<meta property=\"og:description\" content=\"What formats are used to represent digital audio? 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