Any good audio merger to join mp3, wav and flac files?

When using an audio merger to join MP3, WAV, and FLAC files, there are several common errors to watch out for to ensure a smooth and high-quality output:
Errors to Avoid

1. Combining files with different sample rates (e.g., 44.1kHz vs 48kHz) or bit depths can cause playback issues or audio artifacts.- Convert all files to a consistent sample rate and bit depth before merging.
2. Merging mono and stereo files can lead to unexpected audio results or distortions.- Ensure all files have the same channel configuration (preferably stereo).
3. Some audio merger tools may not support certain formats or codecs, leading to errors or poor output.- Convert all files to a common, supported format (e.g., WAV or MP3) before merging.
4. Merging files with different loudness levels can result in inconsistent audio volume.- Normalize audio levels beforehand or adjust volume after merging.

Best Practices
* Convert all files to a common format, sample rate, and channels.
* Use high-quality, reliable merging tools).
* Check the merged file for quality and consistency.
* Save the merged file in a lossless format if quality preservation is important.