Your earnings with Sound Alerts are handled by Twitch and will come together with your other earnings on Twitch.
Affiliates and Partners are eligible for payout once their pre-taxed accrued revenue balance reaches $100. If you do not make over $100 in a given month, Twitch will roll over the balance to the next month until this minimum threshold is met. For example, if you make $20 in April and $90 in May, your April balance would be rolled over into May and you would receive a payout for both months in mid-June.
Open your creator dashboard and head to your "Channel Analytics".
Here you can find your statistics to your streams.
Select "View My Payouts".
Now you can see your "Payout Dashboard" where you can see different statistics.
Sound Alerts bits analytics will not be tracked by Streamlabs & Streamelements or any other services. You can only track the history on the Sound Alerts dashboard and see the cumulative Sound Alerts income on the twitch analytics a few days later.