Boilsoft AAC to AU Converter tutorial

Glossary:

Advanced Audio Coding (AAC) is a standardized, lossy compression and encoding scheme for digital audio. Designed to be the successor of the MP3 format, AAC generally achieves better sound quality than MP3 at similar bit rates. AAC is also the default or standard audio format for: Apple's iPhone, iPod, iPad, Nintendo DSi, iTunes, DivX Plus Web Player, Sony's PlayStation 3 and is supported by Sony's PlayStation Portable, latest generation of Sony Walkman, phones from Sony Ericsson, the latest S40 and S60 models from Nokia, Android based phones, Nintendo's Wii (with the Photo Channel 1.1 update installed for Wii consoles purchased before late 2007), and the MPEG-4 video standard.

The AU file format is a simple audio file format introduced by Sun Microsystems. The format was common on NeXT systems and on early Web pages. Originally it was headerless, being simply 8-bit µ-law-encoded data at an 8000 Hz sample rate. Hardware from other vendors often used sample rates as high as 8192 Hz, often integer factors of video clock signals. Newer files have a header that consists of six unsigned 32-bit words, an optional information chunk and then the data (in big endian format).

How to convert?

Step 1 Add video or audio formats

Press Add to add the AAC files you want to convert, then select AU as the output format.

Step 2 Edit the file(Optional)

Press to play the files and the timer will start to work. Press to stop.

This feature is designed for you to measure your favorite segment.

When you want to designate the segment, you can press to set starting time and ending time.

Press to listen to the selected segment.

Step 3 Customize the audio (Optional)

As can be seen from the diagram, the panel allows you to set the expected volume and output format of the audio, and to customize the sample rate, Bit rate and channels the audio will contain.

Press to listen to the audio.

Step 4 Get your cool melody

When all settings are completed, just press Start Button to gain your favorite AU from your output directory soon.