Maybe a user preference setting for the ribbit? I would keep it turned on, because I really need to know it there's been an error, and I often overlook the warning triangle. But there are some random console errors, usually not easily reproduced, that a user can safely ignore, so a user might want to turn off the sound.
If you go for a preference setting would having the sound occur depending on the logging be of use. Alert me on ‘Warning’ or ‘Severe’ events, for example.