same the chance of company bias might be lesser tan the situation in which two voice sound alike or very difficult to an lies and i think they have a tendency to sort of follow the leader and that happens and it's the bias issue is a very serious, you know topic embedded within the 69 ticket working group for the speaker recognition as well. it's a very serious issue. >> does bias work both ways? by that, i mean, if you go into it not wanting or assume tag you are fought hearing the same voice? >> it can go either way. >> as far as familiar voice