Audio and Video encoding format

He-aac[Edit ]

HE-AAC(English:High-Efficiency aac) "High performance AAC" is a lossy data compression technology that includes Advanced Audio encoding (AAC), Spectral Band Replication (SBR) and parametric Stereo (Ps,v2 version only).

Another common name of HE-AAC is aacplus(aac+), a registered trademark of coding technologies for the development of SBR company. The MPEG organization incorporated aac+ into ISO/IEC 14496-3 (MPEG-4 Part 3) in May 2003. HE-AAC is suitable for low bit rate (bitrates) applications, such as: Network radio, digital TV, and so on, it claims that the 48kbps sound quality can be better than 128kbps MP3, the main competitor is the same also used the SBR technology mp3PRO.

version [edit ]

Different versions of HE-AAC:

version	Nickname	encoding function	Standard
HE-AAC v1	AACplus v1, eAAC, aac+, Ct-aacplus	AAC LC + SBR	ISO/IEC 14496-3:2001/AMD 1:2003
HE-AAC v2	AACplus v2, eaac+, aac++, enhanced aac+	AAC LC + SBR + PS	ISO/IEC 14496-3:2005/AMD 2:2006

External links [edit ]

• MPEG-4 HE-AAC V2-audio Coding for today's digital media world,article in the EBU Technical review (01/2006) giving Explanati ONS on HE-AAC.
• tuner2.com List of internet radio stations using aacplus
• AACplus Introduction of Coding Technologies
• Open Source AAC codec FAAC (encoder) and FAAD2 (decoder)

Hidden Check On Codec Multimedia compression format Video Compression ISO/IEC MJPEG Motion JPEG 2000 · Mpeg-1 MPEG-2 (Part 2) • MPEG-4 (Part 2/asp Part 10/AVC) • Mpeg-h (part 2/HEVC) ITU-T h.120 H.261 h.262 H.263 H.264 h.265 (HEVC) Other AMV AVS Bink CineForm Cinepak Dirac DV Indeo Microsoft Video 1 · OMS Video Pixlet RealVideo Rtvideo Sheervideo Smacker Sorenson Video Theora Vc-1 VP3 VP6 VP7 VP8 VP9 Wmv Audio Compression ISO/IEC MPEG MPEG-1 Layer III (MP3) · MPEG-1 Layer II MPEG-1 Layer I. AAC HE-AAC · MPEG-4 als MPEG-4 SLS MPEG-4 DST MPEG-4 HVXC MPEG-4 CELP ITU-T G.711 g.718 g.719 g.722 g.722.1 g.722.2 g.723 g.723.1 g.726 g.728 g.729 g.729.1 Other Ac-3 Amr AMR-WB amr-wb+ Apple Lossless Atrac DRA DTS FLAC Gsm-hr GSM-FR GSM-EFR ILBC Monkey ' s audio μ-law Mt9 Musepack Nellymoser Optimfrog Opus OSQ RealAudio Rtaudio SD2 Shn Silk Siren Speex Tak True Audio TWINVQ Vorbis WavPack Wma Image compression Iso/iec/itu-t JPEG JPEG 2000 · JPEG XR Lossless JPEG Jbig Jbig2 PNG WBMP Others Apng BMP DjVu EXR GIF Icer ILBM MNG PCX PGF TGA TIFF QTVR WebP Media container General 3GP ASF Avi Bink BXF DMF DPX EVO FLV GXF M2ts Matroska Mpeg-ps Mpeg-ts MP4 MXF Ogg QuickTime RealMedia Riff Smacker VOB WebM For audio only AIFF Au Wav See also compression method, data compression software implementation

Audio and Video encoding format