Machine learning detection of people’s gender in the real world is anywhere from annoying to distressing to trans people because all the training data is cis people and so they get matched with their AGAB. Can you imagine how terrible it would be to already hate and be super self-conscious about your voice only to have Spotify start telling you via recommendations that you don’t pass well enough. Yikes.
Although the patent may be creepy...
The text of the patent refers to media recommendation (not advertising) - contrary to the sibling comment where you claim it will result in ads for Dollar Shave Club, the patent does not once use the term "advertising". Sure, it could be used for that, but I don't think that's the main intention at all.
How are you going to know that Spotify has recommended you a song based on your gender? Are we assigning genders to songs now? Straight white cis males can like Aqua's "Barbie Girl", too.
This is an absurd take. Do you see no difference between Spotify recommending songs to a trans woman based on what men with similar music tastes in her area and age group are listening to and "assigning gender to songs?"
Spotify also typically recommends you playlists rather than songs and my home page is extremely gendered. I get playlists like "You Go Girl", "Girls Like You", "Women of Rock", "Fierce Femmes." A trans guy getting these kinds of recommendations would be ... well odd.
Like recommendation engines aren't magic -- they look at what people "like you" listen to where "like you" has all sorts of random demographic data as well as your personal patterns/history.
At the moment, but I think the idea behind this patent is that it can factor in your mood (and other factors, such as gender) into the recommendation engine as well as what you already like.
Though I don't see gender being much of a signal. My GF and I have exactly the same taste in music (well, she doesn't like Classical that much, and I don't like Musicals, and she's more into Goth/Industrial/Metal than I am, but it's a 90% match). Anecdata, but that's all I have.
It's maybe not that bad of the grand scheme of things, but it's inarguably racist.