First released in 1995 and developed by the Fraunhofer Society, the mp3 audio format is arguably one of the most recognizable audio file format that ever existed. This digital audio encoding format hails from the lossy data compression algorithm family. The format enjoys widespread support and compatibility with most handheld music players, smartphones, computers, and in car stereos most of which have native support for the format. It is also a popular format used for distribution of audio files over computer networks such as the internet. Free mp3 encoders such as LAME and audacity give authors the tools necessary to create .mp3 files.
The advanced audio coding audio format or AAC format for short is a standardized audio encoding format designed to succeed the popularized mp3 format. It is the result of the collaborative efforts of several companies including bell labs, Nokia, and Sony among others. It was initially released in 1997 as part of the lossy digital audio compression family of audio encoding formats. AAC enjoys a wealth of native compatibility and support by different platforms, hardware, and software applications including video game consoles such as the PlayStation 3, Nintendo DSi, and platforms such as Android, and YouTube. Today even diverse hardware such as in dash car audio players have native support for the format.
FreeFileConvert uses tuned encoding for MP3 to AAC conversions, preserving clarity while trimming file size. Finished audio streams instantly across phones, tablets, desktops, and modern browsers without extra tweaks.
Upload MP3 files from desktop, tablet, or cloud storage, queue multiple jobs, and let the converter finish autonomously. Return whenever convenient to download synchronized AAC results on any device you rely on.
Process up to 5 files sized 1000 MB per batch without splitting queues manually. Mixed-format uploads convert together, producing consistent AAC audio with dependable progress tracking.
The MP3 format compression algorithm works through perceptual coding. A technique in which audio artifacts outside the auditory range of the average human, are reduced or 'cancelled out'. The result is a near perfect replication of the original audio sample at a compression ratio of 11 to 1 at 128 kilobits per second. Audio quality can be controlled by such factors as the bit rate, sample rate, among other features. But bits rates being the main determinant of audio quality can be adjusted between the typical range from 128 kb/s to as high as 320kb/s.
The AAC supports stereo playback at a maximum and acceptably modest 96 kilobits per second. Sample frequencies can range from 8 to 96 kilo hertz, and maximum number of supported channels is 48. Resulting AAC file sizes are typically smaller in comparison with those of its closest rival format mp3.
Upload your audio file in the MP3 format from your device, Dropbox, or Google Drive.
Select AAC as the output format and click Convert. Adjust optional settings if needed.
Download the converted audio file. Each file stays available for up to 5 downloads.