I am trying to make a bot that is able to "transcript" audio from conversations and return them to a text channel for a server I am in. so everyone is consenting to it, I dont want to hear how this "could" be illegal

I currently have two problems, one I want to make an event listener that triggers when someone talks, similair to how the discord.js guide has it in indiviual files. But I can't seem to find the event to do this; I have it so I can call an event in my slash command to join the voice channel (I only want to do this for neatness so it doesn't really matter)

voiceConn.receiver.speaking.on('start', async (userId) => {
            const user = interaction.guild.members.cache.get(userId);
            talkingUser = user.displayName
            console.log(talkingUser, 'started')
        })

Second, the more important part. How do I get audio data from discord itself? is it still possible, I know craig bot is able to do something in this manner, but I saw mulitple post from 2 years ago saying discord no longer supports this, but if craig bot can how are they? I was looking though the code for that bot and I can not seem to find anything that allows this (I might just be dumb)... Currently from what I have found,
const audioStream = voiceConn.receiver.AudioReceiveStream(user, { mode: 'pcm' });
should be the closest implenation to it, but I get an error saying its not a funcution. Any leads in the right directions would be extremely helpful thank you!!