Kind of strange question, but I am wondering if there are any tips on changing the way your voice sounds. I am not looking for any dramatical improvements, but I am wondering if there are any small tips/techniques you can use to improve your voice.
In particular I am looking for techniques you can use to make your voice sound less nasal.
Hmm... it all comes down to Practice.
When I took acting lessons we had some pronounciation training which involved speaking some training phrases with a cork or pencil between your teeth.
The phrases where like "Conrad continues counting computer components". We had one for every letter of the alphabet.
For getting rid of a nasal sound, I could imagine it would be helpful to try emulating a deep voice, and speak a little louder than usual. You will have to be beyond embarassment, for the camera work.
Maybe someone with experience in singing could give some helpful advice too.
To Sound less nasal you really need to work out how to speak less from your sinuses and more from your chest and throat.
That nasal sound comes from a lot of air coming from your nose, rather than your your mouth, so try opening your mouth more, lowering your tongue, possibly lowering the pitch as well.
Have an ENT or otolaryngologist check your adenoids, too. If they're large or obtrusive, they can greatly affect airflow in the head.
Pinch your nose as you sing and start to sing low and keep going higher. If your sound gets smaller then work on opening your mouth a little wider and lifting your soft palate.
