The optimal AAC profile is automatically determined from quality/bitrate settings when no override is specified. Note: The above switches ( -lc, -he, -hev2) are not required and should normally not be used. he Forces use of HE AAC profile (HEv2 features disabled). Specify zero to use least restrictive value possible (default).Īdvanced features / troubleshooting -lc Forces use of LC AAC profile (HE features disabled). 2passperiod Overrides two-pass encoding bitrate averaging period, in milliseconds. Using two-pass encoding is not recommended when using VBR. Note that two-pass mode requires a physical file as input, rather than stdin. Multipass encoding -2pass Enables two-pass encoding mode. The following VBR quality settings result in the following average bitrates: When neither of above quality/bitrate options is used, the encoder defaults to equivalent of -q 0.5 cbr Specifies "target bitrate (streaming)" mode. is target bitrate in bits per second ranging from 8000 to 400000. with 1 being the highest quality and thus also having the largest output file size. is a floating-point number in 0.1 range. Options Quality/bitrate control -q Enables "target quality" mode. Path to output file to encode to, in MP4 format. Note that multiple input files can be specified, they will be encoded together into a single output file with chapter marks indicating source file divisions. The file must be in Microsoft WAV format and contain PCM data. Note: Make sure the binary is executable. SSE2 no longer required in version 1.5.3.0 ().ġ.5.4.0 ( Febru13 years ago).Renamed from Nero Digital Audio to Nero AAC in version 1.5.1.0 ().Linux officially supported in version 1.1.34.2 ().Tagging utility added in version 1.0.0.2 ().Original release, version 1.0.0.0, on.Neither Dimkovic nor Bakker currently work at Nero, and development of the codec has stalled, but the software is stable and remains a reliable, and high-quality, option for AAC encoding. Nero apparently still uses the codec in its products. The Nero AAC codec became a stand-alone package around 2006, although still called Nero Digital Audio until 2009. Menno Bakker was the developer of FAAC, one of the earliest widely-available AAC encoders, and also what would be become its companion decoder, FAAD. Dimkovic was the author of the PsyTel codec, and the Nero AAC codec is said to be based on this work. Nero built an in-house team to develop the AAC (audio) codec that included Ivan Dimkovic, Menno Bakker, and others. The ASP/AVC (video) codec was developed by a French company called Ateme. The codec was originally part of Nero Digital, a complete MPEG-4 Audio/Video solution. The suite includes three command-line tools. 2.1.1.3 Advanced features / troubleshooting.The codec could also create HEv1/v2 AAC streams for extremely low bitrates and supports multi-channel surround sound encoding. It was generally perceived to have the highest quality VBR HE-AAC and good enough LC-AAC implementation in past. It was the same codec that was used in Nero's other, then current, commercial products. The download package contained binaries for both Windows and Linux. It was released by Nero AG for personal non-commercial and/or technology-evaluation purposes. Nero AAC is a freely available software suite that includes a high-quality LC and HE AAC codec and metadata tool. S Source code available L Linux M macOS W Windows Libav (pre-3.0 FFmpeg) AAC encoder S/L/M/W
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |