| dbo:abstract |
MPEG-4 ALS (Audio Lossless Coding, ALS) je rozšíření standardu komprese zvuku MPEG-4 Part 3, který je určen k bezeztrátové kompresi. Byl dokončen roku 2005. Někdy je přirovnáván k FLAC pro podobné výsledky. Podporuje multikanálové přehrávání nebo libovolnou samplovaní frekvenci. Rozšířenost tohoto formátu je naprosto minimální. (cs) MPEG-4 Audio Lossless Coding, also known as MPEG-4 ALS, is an extension to the MPEG-4 Part 3 audio standard to allow lossless audio compression. The extension was finalized in December 2005 and published as ISO/IEC 14496-3:2005/Amd 2:2006 in 2006. The latest description of MPEG-4 ALS was published as subpart 11 of the MPEG-4 Audio standard (ISO/IEC 14496-3:2019) (5th edition) in December 2019. MPEG-4 ALS combines a short-term predictor and a long term predictor. The short-term predictor is similar to FLAC in its operation - it is a quantized LPC predictor with a losslessly coded residual using Golomb Rice Coding or (BGMC). The long term predictor is modeled by 5 long-term weighted residues, each with its own lag (delay). The lag can be hundreds of samples. This predictor improves the compression for sounds with rich harmonics (containing multiples of a single fundamental frequency, locked in phase) present in many musical instruments and human voice. (en) MPEG-4 Audio Lossless Coding, auch bekannt unter MPEG-4 ALS, ist eine Erweiterung zum MPEG-4-Audio-Standard, um verlustfreie Kompression zu ermöglichen. Die Entwicklung dieser Erweiterung wurde im Dezember 2005 abgeschlossen. (de) MPEG-4 ALS (MPEG-4 Audio Lossless Coding) はMPEG-4オーディオ (MPEG-4 Part 3) の一部として規格化されたロスレス圧縮方式で、スタジオ編集などでも使える高音質のマルチチャネルオーディオ信号を扱うことができる。 MPEG-4 ALSは、インターネットでの音楽配信、携帯ミュージックプレーヤ、音楽アーカイブシステムやスタジオ編集などさまざまな用途への応用が考えられており、FFmpegなどさまざまなソフトウェアでサポートされている。 (ja) |
| dbo:wikiPageExternalLink |
http://mpeg.chiariglione.org/ http://www.reznik.org/software.html%23ALS https://www.ntt-review.jp/archive/ntttechnical.php%3Fcontents=ntr200712sp3.html https://www.nue.tu-berlin.de/menue/forschung/forschungsgebiete/datenkompression_und_uebertragung/mpeg_4_audio_lossless_coding_als/parameter/en/ http://wiki.multimedia.cx/index.php%3Ftitle=MPEG-4_Audio_Lossless_Coding_(ALS) https://web.archive.org/web/20070311052037/http:/www.acnnewswire.net/article.asp%3FArt_ID=31029&lang= https://web.archive.org/web/20070314131227/http:/www.iso.org/iso/en/CatalogueDetailPage.CatalogueDetail%3FCSNUMBER=43026 |
| dbo:wikiPageID |
3580681 (xsd:integer) |
| dbo:wikiPageLength |
8994 (xsd:nonNegativeInteger) |
| dbo:wikiPageRevisionID |
1098120952 (xsd:integer) |
| dbo:wikiPageWikiLink |
dbr:MPEG-4 dbr:MPEG-4_Part_3 dbc:Lossless_audio_codecs dbr:Audio_data_compression dbr:Lossless_Predictive_Audio_Compression dbr:Golomb_coding dbr:Lossless_compression dbr:MPEG-4_SLS dbr:Streaming_media dbr:Winamp dbr:Linear_predictive_coding dbr:FFmpeg dbr:Nippon_Telegraph_and_Telephone dbr:PCM dbr:Free_Lossless_Audio_Codec dbr:International_Electrotechnical_Commission dbr:International_Organization_for_Standardization dbr:Technical_University_of_Berlin dbc:MPEG-4 dbr:Audio_file_format dbr:Open-source_software dbr:RealNetworks dbr:Lossless_Transform_Audio_Compression dbr:MP4 dbr:Moving_Picture_Experts_Group dbr:Reference_implementation_(computing) dbr:Lossless_data_compression dbr:Block_Gilbert_Moore_Coding |
| dbp:containedBy |
dbr:MP4 |
| dbp:free |
No (en) |
| dbp:latestReleaseVersion |
RM23 (en) |
| dbp:name |
Audio Lossless Coding (en) |
| dbp:open |
Yes (en) |
| dbp:owner |
dbr:International_Organization_for_Standardization |
| dbp:standard |
dbr:MPEG-4_Part_3 |
| dbp:type |
dbr:Lossless_compression dbr:Audio_file_format |
| dbp:wikiPageUsesTemplate |
dbt:Compression_software_implementations dbt:As_of dbt:Compression_formats dbt:Infobox_file_format dbt:Reflist dbt:Start_date_and_age |
| dct:subject |
dbc:Lossless_audio_codecs dbc:MPEG-4 |
| gold:hypernym |
dbr:Extension |
| rdf:type |
dbo:Software yago:Abstraction100002137 yago:Communication100033020 yago:Format106636806 yago:Information106634376 yago:Message106598915 |
| rdfs:comment |
MPEG-4 ALS (Audio Lossless Coding, ALS) je rozšíření standardu komprese zvuku MPEG-4 Part 3, který je určen k bezeztrátové kompresi. Byl dokončen roku 2005. Někdy je přirovnáván k FLAC pro podobné výsledky. Podporuje multikanálové přehrávání nebo libovolnou samplovaní frekvenci. Rozšířenost tohoto formátu je naprosto minimální. (cs) MPEG-4 Audio Lossless Coding, auch bekannt unter MPEG-4 ALS, ist eine Erweiterung zum MPEG-4-Audio-Standard, um verlustfreie Kompression zu ermöglichen. Die Entwicklung dieser Erweiterung wurde im Dezember 2005 abgeschlossen. (de) MPEG-4 ALS (MPEG-4 Audio Lossless Coding) はMPEG-4オーディオ (MPEG-4 Part 3) の一部として規格化されたロスレス圧縮方式で、スタジオ編集などでも使える高音質のマルチチャネルオーディオ信号を扱うことができる。 MPEG-4 ALSは、インターネットでの音楽配信、携帯ミュージックプレーヤ、音楽アーカイブシステムやスタジオ編集などさまざまな用途への応用が考えられており、FFmpegなどさまざまなソフトウェアでサポートされている。 (ja) MPEG-4 Audio Lossless Coding, also known as MPEG-4 ALS, is an extension to the MPEG-4 Part 3 audio standard to allow lossless audio compression. The extension was finalized in December 2005 and published as ISO/IEC 14496-3:2005/Amd 2:2006 in 2006. The latest description of MPEG-4 ALS was published as subpart 11 of the MPEG-4 Audio standard (ISO/IEC 14496-3:2019) (5th edition) in December 2019. (en) |
| rdfs:label |
Audio Lossless Coding (en) MPEG-4 ALS (cs) MPEG-4 Audio Lossless Coding (de) MPEG-4 ALS (ja) MPEG-4 ALS (zh) |
| owl:sameAs |
freebase:Audio Lossless Coding wikidata:Audio Lossless Coding dbpedia-cs:Audio Lossless Coding dbpedia-de:Audio Lossless Coding dbpedia-ja:Audio Lossless Coding dbpedia-yo:Audio Lossless Coding dbpedia-zh:Audio Lossless Coding https://global.dbpedia.org/id/X1ua |
| prov:wasDerivedFrom |
wikipedia-en:Audio_Lossless_Coding?oldid=1098120952&ns=0 |
| foaf:homepage |
http://mpeg.chiariglione.org/ |
| foaf:isPrimaryTopicOf |
wikipedia-en:Audio_Lossless_Coding |
| is dbo:wikiPageRedirects of |
dbr:MPEG-4_ALS dbr:MPEG4_ALS |
| is dbo:wikiPageWikiLink of |
dbr:List_of_codecs dbr:MPEG-4 dbr:MPEG-4_Part_3 dbr:Ripit dbr:Comparison_of_video_container_formats dbr:Lossless_compression dbr:MP4_file_format dbr:Comparison_of_audio_coding_formats dbr:Advanced_Audio_Coding dbr:ALS_(disambiguation) dbr:Audio_coding_format dbr:Lossless_Transform_Audio_Compression dbr:Lossless_predictive_audio_compression dbr:MPEG-4_ALS dbr:MPEG4_ALS |
| is foaf:primaryTopic of |
wikipedia-en:Audio_Lossless_Coding |