Cloudflare switched to using hCaptcha a couple months ago, I think and I only just noticed that they do not offer an audio-based captcha.
However, hCaptcha integrates with Privacy Pass[0], and you can top up your tokens by solving a captcha at [1] and [2]. What you could do (and I realize this is far from ideal), is getting a sighted friend to solve a couple of captchas so you have enough tokens to last you a couple months.