Difficulty using C4 decoder on Wavelab export

WaveLab
1

I have a .wav file that I exported from Wavelab that I would like to decode using the Telefunken C4 compander standard. Since I don’t have a hardware compander to complete this process, I’ve only been able to find one standalone software decoder at this website: C4 Audio Decoder Help

Any time I try to load this .wav file into the C4 decoder software I’ve found, the C4 software throws an error that says something to the effect of “missing data chunk.” I’ve never encountered any problems with metadata or headers or anything like that on any of my .wav files before, so I wondered if anyone would have any insight on where the problem might be. I have heard of some older softwares that look for RIFF headers (the metadata stored in the .wav file) at the end as opposed to the beginning of the file, so would there be a way to use WL to make an edit like that to the file I want to decode? Any ideas are welcome, even if someone has experience using a different C4 decoder or something like that.

Thanks in advance,

-TOM-

2

WaveLab does not compress files using the Telefunken C4 standard. Hence, how a file exported by WaveLab could be decoded by a Telefunken C4 compander?

3

We got in a CD with this file on it. It is a .WAV file and we only used WL to listen to it. The file is what we want to decode. The C4 software program keeps saying that it needs a data chunk in order to decode the file.

Here is the message we are getting…

Capture

So how do we put a “data chunk” into the file so this program can read it?

4

Telefunken (Telcom) C4 is an analog four‑band compander‑based noise‑reduction standard for professional tape recording, designed to push analog tape close to CD‑like dynamic range.
Probably the .wav file needs special metadata (data chunk) to expand it.
If this data is not present, that means that the original file was not properly encoded.

5

Thanks for the informative reply. Always appreciated…