Click Add Your Media and upload your AU file.
Make sure that the output format is set to FLAC.
Click Convert.
Popular converters:
You can also convert your files with our powerful desktop app.
If you need to convert multiple files or your file is too large for the online converter, try the desktop alternative. The Movavi converter is a versatile audio, video, and image format changer. It deals with over 180 file formats, can convert files in bulk quickly, with high output quality and resolution. Its SuperSpeed mode gives you the fastest conversion speed and no quality loss. It has versions for both Windows PC and Mac and is really lightweight, allowing you to process photos, movies, and music files even on a weak computer.
How to convert AU to FLAC fast and easy? Read the guide below to find out!
Step 1. Download and install the Movavi converter
How to use a file converter? First, download the version of the software for Microsoft Windows or Macintosh, launch it, and proceed following the on-screen instructions. When the app is installed to your computer, it will run automatically.
Locate the AU files you want to convert and drag-and-drop them into the program’s window. The application can convert big batches of files – there’s no limit to how many files you can transfer at once.
In the Formats menu, select the file type you want to turn your media into and choose the target format for the files. Also, you can change the conversion settings: choose a different bitrate, resolution (including HD, Ultra HD, and even 4K), codec, etc. Pay attention to the SuperSpeed label: it indicates that the conversion will be performed with a very high speed and without losing quality.
To specify the output folder, click the Save to button. Hit the Convert button to launch the process. When the converting is done, the new media files will be saved to the chosen folder.
Now you know how to change the file format using the Movavi converter. WIth this tool, you can also reduce the file size, cut out clips from videos, crop pictures, and create animations from your favorite movies. Get the free trial version and test it out!
For those looking to convert AU to FLAC for free, a reliable and efficient online tool is indispensable. Enter Online Video Converter – a versatile and user-friendly solution for audio conversion needs.
Before diving into the conversion process, it's helpful to understand the nature of both AU and FLAC formats. AU, primarily used in Unix-based systems, is known for its simplicity and effectiveness in handling basic audio data. However, its compatibility with broader platforms and devices can be limited. FLAC, on the other hand, stands out for its lossless compression, ensuring high-quality audio without any data loss. It's a preferred choice for audiophiles and those who don't want to compromise on sound quality. Despite its larger file size compared to lossy formats, FLAC's fidelity and open-source nature make it a popular format for music storage and playback.
The need to convert AU to FLAC arises primarily from FLAC's broader compatibility and superior audio quality. Whether you're an audio professional, a music enthusiast, or just someone wanting to ensure your audio files play smoothly on various devices, converting to FLAC is a practical choice.
Online Video Converter emerges as an excellent tool for this purpose. The converter is designed with a user-friendly interface, making it accessible even to those who are not tech-savvy. You can convert AU to FLAC online for free, making it a cost-effective solution for your audio conversion needs. Online Video Converter processes files swiftly, saving you time while ensuring efficiency.
For anyone wondering how to convert AU to FLAC online for free, Online Video Converter stands out as a go-to choice. It balances ease of use, efficiency, and quality retention, making the conversion process seamless and satisfactory. Whether you're aiming to enhance compatibility or maintain audio quality, this tool addresses your needs effectively, ensuring your audio files are ready for any platform or device.
What is AU?
Full name
Au File Format
Format type
Audio
Developed by
Sun Microsystems
Description
What is AU? AU is short for “audio”, which means that this file type was created to store sound. It is not a very common format; it is primarily used on Unix systems, which are not widely themselves. Still, playback of AU files on Windows or Mac is also possible; several programs are able to open these audio files. Below, you’ll find information on how to play AUs.
File extension
.au
Technical details
The AU format specification has three main parts: a header, an annotation, and the main block that contains audio data. This data can be encoded by μ-law, PCM, or A-law algorithms. Aside from the programs listed below, you can also use Java apps to play AU files.
Associated programs
Windows Media Player, QuickTime, VLC, and others
What is FLAC?
Full name
Free Lossless Audio Codec
Format type
Audio
Developed by
Xiph.Org Foundation; Josh Coalson and Erik de Castro Lopo
Description
FLAC is short for Free Lossless Audio Codec. It was created in 2001 by the Xiph.Org Foundation but didn’t have a stable release until 2019. FLAC is useful when you want to compress audio without losing quality. But, like other high-quality formats, files with FLAC specifications can be huge. If your device doesn’t have much storage space, you might have problems maintaining a collection of FLAC files. Despite its popularity, media players like iTunes and QuickTime still don’t support audio playback of the FLAC format, and many mobile apps cannot decode it. You may want to consider converting your FLAC files to the more widely supported MP3 format to be on the safe side. Check the table below if you want to know how to open FLAC audio tracks and which programs can play them.
File extension
.flac
Technical details
Although FLAC files are compressed, they are of the same quality as the source audio. The audio files in lossy formats like MP3 or AAC have slightly worse sound quality than those of lossless formats. However, the difference may be almost undetectable if the lossy file has a high bitrate. Another feature of the FLAC file type is that it uses IDv1 and IDv3 tags. This allows the user to arrange their audio collection according to taste, changing the original track metadata.
Associated programs
Windows Media Player, RealPlayer, VLC, and others
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