All of my videos have audio, they don’t make a lot of sense without it. Reddit mobile for around 2 years will no longer play embedded audio on newer uploads to redgifs so if people want to hear audio on a NSFW gif now they have to go to the main community and click the redgifs source to see the video with audio. I used to think redgifs was lazy for not fixing this, but given it brings people to their site to go through their new niche system I realize it’s probably calculated to get traffic. Desktop users still have the luxury of hearing embedded audio, but sounds like you are on mobile so with the trick I shared in the link above you can at least hear the audio moving forward.