AAC to MP3 - Convert audio online
Conversion Results:
| # | Output File | Source File | Action |
|---|
How to convert AAC to MP3:
1. Click the "Choose Files" button to select multiple files on your computer or click the "URL" button to choose an online file from URL, Google Drive or Dropbox. The source file can also be video format. Video and audio file size can be up to 200M. You can use file analyzer to get source audio's detailed information such as track name, genre, bitrate and sampling rate.
2. Set target audio format, bitrate and sample rate. The target audio format can be WAV, WMA, MP3, OGG, AAC, AU, FLAC, M4A, MKA, AIFF, OPUS or RA.
3. Click the "Convert Now!" button to start batch conversion. It will automatically retry conversion on another server if one fails, please be patient while converting. The output files will be listed in the "Conversion Results" section. Click icon to show file QR code or save file to cloud storage services such as Google Drive or Dropbox.
AAC vs MP3:
| Name | AAC | MP3 |
| Full name | Advanced Audio Coding | MPEG-1 or MPEG-2 Audio Layer III |
| File extension | .aac | .mp3 |
| MIME | audio/aac | audio/mpeg, audio/MPA, audio/mpa-robust |
| Developed by | Bell Labs, Fraunhofer Institute etc. | Fraunhofer Institute |
| Type of format | Audio compression format | Digital audio |
| Introduction | Advanced Audio Coding (AAC) is an audio coding standard for lossy digital audio compression. Designed to be the successor of the MP3 format, AAC generally achieves better sound quality than MP3 at similar bit rates. AAC has been standardized by ISO and IEC, as part of the MPEG-2 and MPEG-4 specifications. | MPEG-1 or MPEG-2 Audio Layer III, more commonly referred to as MP3, is an audio coding format for digital audio which uses a form of lossy data compression. It is a common audio format for consumer audio streaming or storage, as well as a de facto standard of digital audio compression for the transfer and playback of music on most digital audio players. |
| Technical details | AAC supports inclusion of 48 full-bandwidth audio channels in one stream plus 16 low frequency effects channels, up to 16 "coupling" or dialog channels, and up to 16 data streams. The quality for stereo is satisfactory to modest requirements at 96 kbit/s in joint stereo mode; however, hi-fi transparency demands data rates of at least 128 kbit/s. | The use of lossy compression is designed to greatly reduce the amount of data required to represent the audio recording and still sound like a faithful reproduction of the original uncompressed audio. An MP3 file that is created using the setting of 128 kbit/s will result in a file that is about 1/11 the size of the CD file created from the original audio source. |
| Associated programs | foobar2000, AIMP, DirectShow, QuickTime, VLC media player. | VLC media player, MPlayer, Winamp, foobar2000. |
| Sample file | sample.aac | sample.mp3 |
| Wikipedia | AAC on Wikipedia | MP3 on Wikipedia |