DSP & Professional Audio

Digital signal processing, mics, and acoustic echo

Audio is where commercial AV gets technical. Understand digital audio and DSP fundamentals — sample rates, gain structure, dB and headroom — then microphones, routing, automixing, equalization, and acoustic echo cancellation. Finish with safe commissioning and tuning.

Key Competency

Design and safely commission a small-room audio DSP path.

AV Institute · Week 4DSP & Professional Audio

Field Assignment

Create a DSP Signal-Flow Diagram & Audio Tuning Checklist

Est. 60 minCompetency: Document the DSP design and the tuning procedure.

Learning objectives

Produce a DSP signal-flow diagram.
Produce a step-by-step tuning checklist.
Include verification steps.

Assignment brief & submission

Submit a DSP signal-flow diagram and a tuning checklist another technician could follow to commission the room.

Deliverables

1A DSP signal-flow diagram (blocks and wires).
2A tuning checklist: gain, AEC, automix, HPF/EQ, limiter, delay.
3A verification checklist: no clipping, no echo, clear talkers, content both ways.

Why a checklist

A written tuning checklist makes commissioning repeatable and lets another tech verify the room the same way you did — the foundation of serviceable audio.

Implementation checklist

✓DSP signal-flow diagram complete.
✓Tuning checklist step by step.
✓Verification checklist included.

Downloadable study guide

study-guide.txtcopy-paste ready

01. Deliverables: DSP signal-flow + tuning checklist + verification checklist.
02. Tuning order: gain → AEC → automix → HPF/EQ → limiter → delay.
03. Verify: no clipping, no echo, clear talkers, content both ends.