Hidden Problems in the Best Audio Plugins

Main idea: “Hidden problems” in audio plugins

The video warns that plugins can seem great—easy UI, good sound—but can create major workflow and resource issues in large, professional mixing sessions. This becomes especially relevant with immersive formats like Dolby Atmos and when producing many deliverables.

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Hidden Problem 1: Plugin complexity + automation can silently overload large sessions

• In small sessions, heavy processing is often manageable.
• In film/TV mixing, you may have 300–500 tracks (or more).
• Many mix elements get processed—often at least EQ + compression—with automation for:
  • plugin parameters
  • levels
  • panning
  • dynamic behavior over time

Example: FabFilter Pro-Q scalability (Dolby Atmos case study)

FabFilter Pro-Q is praised for being intuitive, fast, reliable, and consistent.

The video discusses flexibility claims such as:

• up to 24 EQ bands
• up to 10 channels in one instance (including Dolby Atmos 7.1.2 support)

How that multiplies internally:

• one Atmos track = 10 channels
• Pro-Q handles those as multiple “internal instances”
• 24 bands × per-band parameters (frequency/gain/bandwidth + dynamic EQ) can create hundreds to over a thousand+ parameter options that the system/automation must track.

Why this becomes a “hidden” problem

• In big sessions with many plugin instances (e.g., Pro-Q on many tracks), the system can become resource-heavy.
• The warning is that computers may not clearly report that the extra load comes from the plugin’s internal automation/parameter complexity.

Historical workaround used by mixers

When Pro-Q2 (and similarly heavy plugins) arrived, a common workaround was to reduce active complexity, for example:

• limit EQ bands (e.g., 10 bands / 8 bands instead of max)

Benefit: fewer band parameters means fewer automation lanes to read/process during playback.

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Hidden Problem 2: Offline rendering can take dramatically longer than realtime

In film/TV delivery, mixes often must be exported into many different formats (mono/stereo, stems/splits, Dolby Atmos, etc.).

Historically, exports were effectively real-time. Now offline rendering can be faster (e.g., 3–10× realtime)—but:

The hidden issue

Some plugins may process normally during playback, yet offline bounce can take 2–4× longer because the internal processing is more expensive when rendering/exporting.

Example: Harrison MPC (channel strip) offline bounce time

The speaker describes issues with the Harrison MPC plugin, based on the large-format Harrison MPC5 console.

Positive impressions:

• integrated channel strip
• EQ is praised
• denoiser sounds fantastic for dialogue

Performance problem:

• when instantiated heavily (e.g., 200–300 instances), offline renders can take 3–4× longer than comparable plugins (such as FabFilter plugins in the speaker’s workflow).

Workflow impact:

• rendering time becomes a bottleneck at the end of the pipeline
• it matters most when you need speed across many daily projects/deliverables

Takeaway / recommendation

Because these issues appear “under the gun,” the video recommends:

• try plugins before committing
• test them in your actual workflow—especially with:
  • offline export
  • lots of plugin instances

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Key takeaway for large/pro sessions

Plugin “sound” and “usability” aren’t the whole story. Watch for:

1. Internal parameter/automation complexity that multiplies in immersive formats (e.g., Atmos)
2. Offline render cost that can explode export times even if realtime playback feels fine

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Main speakers / sources

• Speaker: A single creator/host (self-referred; ends with “Let me know… thanks for watching” and mentions social @axk).
• Primary plugin/product sources mentioned:
  • FabFilter Pro-Q (including Dolby Atmos / 7.1.2 discussion)
  • FabFilter Pro-Q2 (referenced for historical context)
  • Harrison MPC plugin (based on Harrison MPC5 console)