Studio credit
Elephant Audio
Audio production · Sound design · Music production
LahorePKEngineering sound since 2018
Guides to briefing, budgeting and delivery
Episodic production
Audio for a Series: Delivering a Season, Not an Episode.
A season is delivered as a batch on one convention rather than episode by episode: each episode is measured individually against one agreed loudness target, each gets its own M&E stem so the series can be re-voiced in another language, and the score and sound-design beds are held consistent across every episode so the season sounds like one thing.
How is audio delivered for a whole series?
Every episode is measured on its own
Integrated loudness is duration-dependent. Measure a whole season as one file and the quiet episodes are pulled up by the loud ones, so the average passes while individual episodes do not. Each episode is therefore measured against the target on its own, as a separate deliverable.
That is also true of every cut-down and every trailer taken from the season. A thirty-second promo cut from an episode that measured correctly will not measure correctly itself — it is a different duration, so it is a different measurement.
What a batch delivery contains, per episode
The same set, every time, on one naming and level convention:
- The final mix, measured individually against one agreed target for the whole season.
- A stereo M&E stem — music and effects without dialogue — matched to the final mix in timing and balance.
- A separate dialogue stem, which is what pickups and re-records are cut against later.
- Score and sound-design beds kept consistent episode to episode, so episode nine does not sound like a different show from episode two.
⚠️ The M&E is the file that decides whether the series can be sold
A series is re-voiced to reach another territory, and that is only possible if the music and effects exist without the dialogue sitting on top of them. If the M&E is missing, or was reconstructed after the fact from a finished mix, the series cannot be dubbed properly — and that is a distribution problem, not an audio one.
It has to be kept clean while the mix is being built. Rebuilding one afterwards means separating things that were already summed, and what comes out is an approximation of a mix that was already signed off.
This is the single most common gap in fast episodic work, because it is the deliverable nobody notices is missing until somebody tries to sell the series.
Mixing for a phone, because that is where it will be watched
Vertical and short-form episodic is watched on a phone, usually on its built-in speaker, often in a noisy place. A phone speaker reproduces almost nothing below about 200 Hz, so bass that carries weight on monitors simply is not there — and anything relying on it lands as nothing at all.
The practical consequence is that dialogue has to sit clearly above the music and effects rather than nestle into them, and that the mix has to be checked on a phone during the work rather than approved on monitors and hoped for. A series mixed only in a room is a series mixed for a room nobody is watching in.
What makes a batch run late
Four things, none of them technical:
- The target arriving after the first episodes are mixed. One agreed number at the start, or every finished episode is re-measured at the end.
- Naming decided per episode instead of once. A batch is a convention; inconsistent names are found at ingest, which is the worst place to find them.
- No M&E in the plan. Adding it after the mix means rebuilding it from a mix that is already approved.
- Episodes arriving as picture changes rather than as locks. Audio cut to a frame moves by hand when the frame moves.
A season to deliver.
Batch work is scheduled against the shoot, not episode by episode. Tell us the episode count, the length and where it is going.
Proof
Work from this service line.
Projects the studio lists under Episodic & Vertical Series Audio, the service line this guide sits under.
Questions
Frequently asked.
How is audio for a series delivered?
As a batch on one naming and level convention: per episode, a final mix measured individually against one agreed target, a stereo M&E stem, a separate dialogue stem, and score and sound-design beds held consistent across the season.
Why is each episode measured separately?
Integrated loudness depends on duration. Measured as one long file, quiet episodes are pulled up by loud ones and the average passes while individual episodes fail. Each episode is a separate deliverable and a separate measurement.
What is an M&E and why does a series need one per episode?
Music and effects without dialogue. It is what allows the series to be re-voiced in another language, so it decides whether the series can be sold into another territory. It has to be kept clean while the mix is built, not reconstructed from a finished mix afterwards.
Does a vertical series need a different mix from a normal one?
Yes, because of where it is watched. A phone speaker reproduces almost nothing below about 200 Hz, so dialogue has to sit clearly above the music and effects rather than blend into them, and the mix has to be checked on a phone during the work.
Can you work while the series is still shooting?
Usually yes — batch turnaround is scheduled against the shoot rather than episode by episode. What matters is that episodes arrive as locks rather than as changes, because audio is cut to frames.
Do trailers and promos need measuring again?
Yes. A cut-down is a different duration, so it is a different integrated measurement. An episode that measured correctly does not make a promo taken from it correct.
A season to deliver?
Batch work is scheduled against the shoot, not episode by episode. Tell us the episode count, the length and where it is going.
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