О мета-тегах и постобработке:

LameXP обеспечивает полную поддержку для мета-информации, включая обложку. Поэтому при преобразовании аудио файлов, любая существующая мета-информация будет сохранена в максимально возможной степени. Есть простой в использовании мета-тег редактор, для добавления новой мета информации или редактирования имеющейся. LameXP обеспечивает полную поддержку Unicode в мета-информации и именах файлов. Благодаря нашим переводчикам, интерфейс LameXP доступен на многих языках. Последнее, но не менее важное, LameXP поддерживает пост-обработку, включая преобразование частоты дискретизации, нормализация (регулировка усиления), регулировка тона, а также down-mixing.

Поддерживаемые форматы:

Output Formats (Encoders)
Currently the following output formats (audio encoders) are supported by LameXP:
Ogg Vorbis by Xiph.org, using the OggEnc2/libvorbis encoder with aoTuV [built-in]
Opus Interactive Audio Codec by Xiph.org and Mozilla, using the Opus-Tools [built-in]
MPEG Audio-Layer III (MP3), using the LAME encoder [built-in]
Advanced Audio Coding (AAC), using Nero AAC or QAAC encoder [separate download]
Free Lossless Audio Codec (FLAC) [built-in]
ATSC A/52 (aka "AC-3"), using the Aften encoder [built-in]
Monkey's Audio (APE), lossless audio compression [built-in]
DCA, using the DCA Enc encoder software (still experimental) [built-in]
Uncompressed PCM / Waveform Audio File (WAV/RIFF)
Input Formats (Decoders)
Currently the following input formats (audio decoders) are supported by LameXP:
AC-3 (ATSC A/52), using Valib decoder [built-in]
Advanced Audio Coding (AAC), using FAAD decoder [built-in]
Apple Lossless (ALAC) [built-in]
Apple/SGI AIFF [built-in]
Avisynth, audio only [requires Avisynth 2.5.x to be installed]
Digital Theater System, using Valib decoder [built-in]
Free Lossless Audio Codec (FLAC) [built-in]
Microsoft ADPCM [built-in]
Monkey's Audio (APE) [built-in]
MPEG Audio-Layer I (MP1), using mpg123 decoder [built-in]
MPEG Audio-Layer II (MP2), using mpg123 decoder [built-in]
MPEG Audio-Layer III (MP3), using mpg123 decoder [built-in]
Musepack [built-in]
Opus Audio Codec [built-in]
Shorten [built-in]
Speex [built-in]
Sun/NeXT Au [built-in]
The True Audio (TTA) [built-in]
Uncompressed PCM / Waveform Audio File (WAV/RIFF) [built-in]
WavPack Hybrid Lossless Audio [built-in]
Windows Media Audio (WMA), using wma2wav [built-in]

Что нового:

Upgraded build environment to Microsoft Visual Studio 2017.6 (MSVC 19.13)
Updated LAME encoder to v3.100 Final (2017-10-13), compiled with ICL 18.0 and MSVC 14.1
Updated mpg123 decoder to v1.25.10 (2018-03-05), compiled with GCC 7.3.0
Updated Opus encoder/decoder libraries to v1.3-beta-31 (2018-03-27) and Opus-Tools to v0.1.10-51 (2018-03-04)
Updated Monkey's Audio binary to v4.33 (2017-12-01), compiled with ICL 18.0 and MSVC 15.5
Updated FAAD decoder to v2.8.6 (2017-10-10), compiled with ICL 18.0 and MSVC 15.5
Updated Vorbis decoder to OggDec v1.10.1+ (2015-03-19), using libVorbis v1.3.6 (2018-03-16)
Updated ALAC decoder to refalac v1.64 (2017-05-19), compiled with ICL 18.0 and MSVC 15.5
Updated WavPack decoder to v5.1.0 (2017-01-20), compiled with ICL 18.0 and MSVC 15.5
Updated MediaInfo to v18.03.1+ (2018-04-19), compiled with ICL 18.2 and MSVC 15.6
Updated GnuPG to v1.4.22 (2017-07-19), compiled with GCC 7.2.0
Updated QAAC add-in (separate download) to QAAC v2.64 (2017-07-19), compiled with ICL 18.0 and MSVC 15.5
Complete re-write of MediaInfo parsing code, now using XML-based MediaInfo output
Improved auto-detection of max. parallel instances on computers with "fast" (i.e. SSD or similar) drive
Some improvements to output file name generation code
Added "Visual Elements" manifest for Windows 8+ "Start" screen tile
Some more protection against "DLL pre-loading" attacks has been implemented

О портативной версии:

Предоставлена разработчиком, работает без установки. Может работать с USB носителей.