How to correct rejected audio files

Help! My audio is rejected by the portal, the wavpack encoder or the digital distribution team! What should I do?
 
First of all, make sure that your audio is a true .wav file. Renaming the file extension from (for instance) .mp3, .mp4 or .aiff to .wav will not magically make the file a true .wav file. You have to make sure that the file is encoded as a waveform audio file format, sometimes also uncorrectly called “Audio for Windows/Windows Audio”. This is done by exporting the audio from your editing, masgtering or recording software as an LPCM .wav file.
 
Secondly, make sure that the audio has the correct resolution. The bit depth should be 16 bits and the sampling rate 44.1 kHz. If your audio project has a higher resolution, make sure to apply the correct dithering and sample rate conversion during or before exporting.
 
If you have a correctly exported wav file (which may play back perfectly fine in your media player) and it is still getting rejected, it may be that your particular file is faulty or corrupt.
 
The most common cause of rejection is a faulty/corrupt file.
 
The .wav format contains the uncompressed audio, but also some extra data, such as the file header and metadata. There is no strict regulation as to what data can be stored in a .wav file and most software audio players just ignore any non-audio bits and play back the uncompressed audio stream as-is. However, encoders and conversion algorithms (such as the ones employed in our release ingestion system) are much more sensitive to stray data and will fail to recognise the file. They need a “clean” header and audio bits.
 
To fix this problem, you can use a free piece of software called Audacity (https://www.audacityteam.org/), an Audio Editor which is available for Windows, Apple MacOS and Linux.

Opening the audio file in Audacity and subsequently exporting it will strip the superfluous data from the audio file and ensure it has a clean header.
 
Proceed as follows:
1. First make sure Audacity handles your audio file correctly. Click on “Edit” -> “Preferences” and set the “Quality” settings like below. You only have to do this once; the settings will be saved in the program.
 

2. Open your faulty .wav file in the program (“File” -> “Open” or drag-and-drop).
3. Export the audio as illustrated  below:
 
 
 
Now, your file should be correct. Re-upload it in the portal or re-supply it to us.
 

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