Ask ten different audio engineers what frequency range causes boxy dialogue and you'll get ten...
How Much Does Audio Post-Production Really Cost?

The honest answer is: it depends. Not just on scope, but on platform, and platform matters more than most people expect.
It's Not the Same Question for TV and Social
A dialogue edit and final mix for a 30-second commercial spot can run $800 to $2,500, sometimes more with sound design and custom music involved. That's just the audio, for 30 seconds, in the broadcast and commercial world.
Now compare that to digital and social content. A full YouTube video, several minutes long, edited picture and audio both, commonly runs $200 to $400 total. That's not a matched comparison by length; a YouTube video in that range usually runs 5 to 8 minutes, not 30 seconds, but that's exactly the point. A complete video, several minutes of picture and sound, can cost less than just the audio on half a minute of commercial. These aren't different price points for the same service. They're different markets entirely, with different expectations baked into the number.
Duration Isn't the Variable That Matters Most
This is why comparing quotes by runtime alone doesn't work. A 30-minute TV episode is a different scope of production than a 30-minute podcast or YouTube video, even at identical length, because broadcast carries technical delivery standards, multiple revision stakeholders, and production values that digital content usually isn't held to. A creator's 30-minute upload and a network's 30-minute episode aren't competing for the same budget, and they were never priced against each other to begin with.
If you're an agency getting quotes, the useful question isn't "how much for this runtime." It's "how much for this runtime, on this platform, at this expectation level," because those three things together are what actually set the price, not the clock.
Why Platform Specialization Changes the Math
This is the same principle that shows up on the music side of things. An engineer who's spent years specifically in one world, whether that's punk records or YouTube and social audio, builds workflows specific to that world's expectations. That specialization is part of why Riot Anthem Studios can charge a flat $90 per finished minute for digital and social content. Over a decade of YouTube and social audio work means the workflow is already built for exactly this kind of project, which keeps the price honest without cutting corners.
Drop that same engineer into a feature film or a national broadcast campaign, and the work is still doable, but the price and timeline look different, because the workflow efficiency built for social content doesn't automatically transfer to broadcast delivery standards.
The Bottom Line
Audio post-production doesn't have one price because it isn't one market. Broadcast and commercial work lives at broadcast and commercial budgets. Digital and social content lives somewhere else entirely, and that's not a lesser tier, it's a different set of expectations with pricing to match. Know which world your project actually belongs to before you start comparing quotes.