One problem I have with this is that technical interviews are not as straightforward as orchestra auditions. Technical interviews are already argued about frequently and some important qualities in a candidate (culture fit, how easy they are to work with, how they handle pressure, etc) are hard to determine through a blind interview. As you said, there would have to be non-blind interviews anyway. I know many companies already have preliminary online coding problems, but once the candidate gets to the meaty in-person or phone interviews, we are right back where we started.
Additionally, many of the standard algorithmic questions are similar to UIL and ICPC questions which are dominated by males for various reasons. Even if we could have completely blind interviews, I don't think that a significantly higher percentage of women would get the job because of larger problems in the tech industry like convincing minorities to join clubs like UIL and ICPC or enter the tech industry in the first place. That being said, I still think this is an interesting idea. I would definitely like to go through a blind phone interview to see if the interviewer treats me differently. Bring on the voice changer.
"Culture fit" is a bafflingly backward bit of bigotry hiding in plain site. "Culture fit" allows companies to discriminate against a wide range of characteristics. I'm amazed any company thinks it's acceptable to include culture fit as part of the recruitment process. (Although I'll grudgingly accept it might be part of non-retention).
Additionally, many of the standard algorithmic questions are similar to UIL and ICPC questions which are dominated by males for various reasons. Even if we could have completely blind interviews, I don't think that a significantly higher percentage of women would get the job because of larger problems in the tech industry like convincing minorities to join clubs like UIL and ICPC or enter the tech industry in the first place. That being said, I still think this is an interesting idea. I would definitely like to go through a blind phone interview to see if the interviewer treats me differently. Bring on the voice changer.