What an Audio Sync Audit Costs and What Moves the Price

Why sync work is priced by the chain, not the hour

When someone asks what an audio sync audit costs, the honest first answer is that it depends on how many devices sit between the microphone and the viewer. A single studio with one camera, one mixing desk and one output is a short trace. A facility with several cameras, remote contributors, a graphics engine and a separate streaming path is a long one. We quote against the chain we are asked to examine, because that is where the hours actually go.

The fee covers tracing the fault, measuring the offset at each stage, writing up the fix and handing you a document your own engineers can act on. It does not cover buying or installing equipment, and we say so in the quotation. Our audits are written reports, so what you pay for is the investigation and the clear record of what we found.

The factors that add time to an audit

Several things lengthen the work, and most of them can be known before we start. The number of separate audio and video paths is the largest. Each path has its own processing delay, and each has to be measured on its own before they can be compared with one another.

Mixed signal types come next. Analogue, embedded SDI audio, networked audio and compressed streams all handle timing differently, and a chain that crosses several of them takes longer to untangle. Remote links add further variables, because network latency changes through the day. Finally, faults that appear only now and then take far longer to catch than faults that are present every time, since we have to wait for the problem to show itself.

• Number of audio and video paths in the chain
• Mix of analogue, embedded, networked and compressed signals
• Remote contributors or off-site links
• Intermittent faults rather than constant ones
• Access to the studio outside live production hours

What you get for the fee

The deliverable is a written document, and we think that is where much of the value sits. It sets out the chain as we found it, the measured delay at each stage, the point where lip-sync drifts, and the specific changes we recommend, in the order we would make them. Priya writes these reports herself, so the person who traced the fault is the person explaining it.

We also note what we could not confirm, and why. If a device would not allow a clean measurement, the report says so rather than guessing. That honesty matters when your engineers then work through the list, because they know which items are firm findings and which need a second look once equipment is available.

What you can do to keep the cost down

Preparation shortens an audit more than anything else. A current signal flow diagram, even a rough one, saves us from drawing the chain ourselves. A list of every device with its model and firmware version helps us spot known timing behaviour before we measure anything.

It also helps to tell us when the problem occurs. If lip-sync slips only on one programme, one camera or one output, that narrows the search enormously. Access to the studio during a quiet period lets us run test signals without interrupting a production, which avoids the repeat visits that raise the total. None of this is mandatory, but each item removes hours of searching.

• A signal flow diagram, however rough
• Device list with models and firmware versions
• A note of when and where the fault appears
• A quiet slot for running test signals

What can change the quotation after it is agreed

A written quotation reflects what we understand of the chain at the time. If we reach the studio and find a path that was not mentioned, such as a second output or a contributor link nobody told us about, the scope has changed and we raise it with you before carrying on. We do not add work quietly and we do not present a larger invoice without agreement.

Equally, if the fault turns out to sit in one place and is found quickly, the audit can be shorter than first estimated, and we say so. The aim is that the figure on the invoice matches the work described in the confirmation. Ordering starts with an enquiry through the contact page, then a written quotation, then an invoice paid by bank transfer.

Questions worth asking any provider

Whoever you ask, it is reasonable to want the same clarity. Ask what is measured and with which method, who does the measuring, and what the final document contains. Ask whether remote links and intermittent faults are included or charged separately, and what happens if the scope changes on site.

A clear answer to those questions tells you more about the likely cost than any headline figure. We would rather you compared like with like, and that is the reason we set out the factors above in some detail. Sync problems are tedious enough without surprises in the fee, so a plain explanation of what drives it seems the fair way to begin.

The cost of an audio sync audit follows the length and variety of the signal chain, the presence of remote links, and whether the fault is constant or intermittent. Good preparation keeps it lower, and a written quotation fixes what is included before work begins. If you are weighing up an audit, send us a short description of your set-up through the contact page and we will reply in writing with a figure and its scope.