The sound is not compressed or distorted due to the level, even if the level got reduced for the sound snippet. Look at the Crest factor:
The waveform looks strange for vocals:
Normally I would say that there is some effect in the chain. Distortion, phaser, whatever. But sonnykeys knows his chain well, he would have told us about an effect. Overlooked, probably?
What else could cause such a "comb" below the zero-line, especially at lower levels? Vibration of the microphone cage? Broken electronics somewhere?
I know similar pictures from parts of acustic guitar recordings, there they come from the natural phasing of the instrument but are less evenly distributed. Here it looks almost like a woodwind instrument and, in a certain way, this voice sounds like an oboe.
I remember a story from Mike Stavrou, as he told about a singer who started to scream but barely raised the VU level. This could be what we have here: the texture of the singer's throat and mouth when he applies his singing technique, intentional or not. It may just be the way he sings.
sonnykeys said:
... if anyone has suggestions on how to ameliorate the problem
Assuming that there is no technical cause for this sound (I am still not sure about that), where is the problem and into which direction would you like to go? Did the singer sound very different without the mic, as you heard him in the room? Did you listen closely at his mouth as you chose the mic? If this sound is real, you got a very special voice here.
I tried a couple of things on the snippet but could not make it "better" whatever this means. The sound ist very stable and sometimes it squeaks in a funny way. EQing to reduce the "distortion" made it muddy and took away the originality, it would rather need emphasis in the heights. A dynamic EQ or multiband compressor at 500 Hz and 3k makes the sound a little more common. I also tried to increase the dynamics. But all this made the sound just different, not better.
I am not a great artist when it comes to EQing and repairing recordings, but I think we have the situation where a young elephant should be forced to sound like a mainstream rapper. Maybe you could remove some harmonic parts with Izotope's Iris but afterwards, would it still be
this voice?
So far I understand there is no possibility to make another recording session and try different mics and positions, correct?
If this is the case (and if there is really no technical problem) I have just one idea:
You got to accept this voice as a special sound. If you cannot fit the voice to a given music, you still have the chance to fit the music to the voice. There are almost no fundamentals in the voice, they could come from a bass for example. Bass and kick supporting the sound and rhythm of already recorded lyrics may be a problem for traditional Rap. On the other hand, the singer is special, the song may be worth to try a special arrangement.