the best way to deal with nasal singing is to try a different microphone. one that has a dip in the midrange.

if you cannot re record the track you can try to use eq to fix the problem. use a narrow bandwith and try scooping around at different points to find the culprit frequencies.

also- is it a male or female singer?

Try a ribbon mic. My voice is naturally thin and nasally, but the ribbon mic I use counteracts that (somehow). I use a Nady RSM4 for my vocals, but I hesitate to recommend that mic here because it's not exactly "good enough" for this board. Works for me, though.

The vocal was male and the mic was a Countryman wireless headset type that attached to one ear (used a Shure transmitter/ receiver). Really small cap and taped to the face just in front of the ear because it has a tendency to wander and swing about. The sound source was also speech, not singing.

Using a ribbon mic in this case is not an option, but that's my fault for not giving enough information.

OK no offence but what application was this - live or studio? It sounds like its a live situation and you've posted in the right forum, although I am the wrong person to answer. But two answers present themselves.

Firstly, a headset type mic is going to inherently have limitations in what the housing can handle - a tiny diaphragm like that is just going to exarcebate your problem.

Secondly, I've suffered from the same issue (to the extent I thought my Neumann u87ai was bad) with male vocals. There is a very definite nasal presence from some post-pubescent male singers with attitude that really pushes what I would say was about 12kHz - but in fact from studies turns out to be much lower - 950, 1000, and 1200Hz, all being multiples which push 12k, are bad and common nasal frequencies - and unfortunately all of these are going to over-stretch a head-mounted housing.

Is this poetry? State your application and we can help....the solution for me has been a Shure SM7, 57a Beta, Heil PR-40 I think it is, or KEL HM-2. Radio - app dynamic mics, but do you need some kind of movement?

Jeemy,

Thanks for the response. Yes, it was live sound and movement was necessary. It was a preacher in a church.