Hello,
I would like to help you reach your project goals, I'm native Spanish speaker, I have vast experience with English and Spanish translation, as well as expertise in technical, medical, technological and legal terminology.
I have done a few audio transcriptions and translations, I did the subtitling for kony2012 viral web video, you can see my work searching kony2012latam on youtube.
I can give you my local rate of 0.05usd per word, and just to help you help me I can go for 0.09 per word transcribed and translated.
If you want we can discuss and negotiate a convenient rate for both of us, how much are you willing to invest on this project and how much work there is to be done, as well as when do you need the job finished.
Thank you for your time and good luck !