Boilsoft AMR to FLAC Converter tutorial

Glossary:

The Adaptive Multi-Rate (AMR or AMR-NB) audio codec is a patented audio data compression scheme optimized for speech coding. AMR was adopted as the standard speech codec by 3GPP in October 1998 and is now widely used in GSM and UMTS. It uses link adaptation to select from one of eight different bit rates based on link conditions.

Free Lossless Audio Codec (FLAC) is an audio compression codec primarily authored by Josh Coalson and Ed Whitney. As its name implies, FLAC employs a lossless data compression algorithm: a digital audio recording compressed by FLAC can be decompressed into an identical copy of the original audio data. Audio sources encoded to FLAC are typically reduced to 50–60% of their original size.

How to convert?

Step 1 Add video or audio formats

Press Add to add the AMR files you want to convert, then select flac 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 flac from your output directory soon.