Music & Audio Advice DAW Signal Flow and Routing 3 — Questions and Answers
Question 1: A reverb on a post-fader send disappears when you pull the channel fader down. Why?
- Post-fader sends scale with the fader (Correct answer)
- Reverb plugins are mono
- The bus is muted
- The send is pre-fader
Correct answer: Post-fader sends scale with the fader
Post-fader sends are tapped after the fader, so lowering the fader proportionally reduces the send level.
Question 2: You hear a sudden volume jump and clipping on the master after adding a bus. What is the most likely cause?
- Stacked gain from summed tracks overloading the bus (Correct answer)
- The bus is in mono
- Sample rate mismatch
- The fader is automated
Correct answer: Stacked gain from summed tracks overloading the bus
Routing many tracks into one bus sums their levels, which can push the bus into clipping without gain staging.
Question 3: What is the purpose of a sidechain input on a compressor in DAW routing?
- To trigger compression from a different signal (Correct answer)
- To add reverb
- To convert mono to stereo
- To raise the sample rate
Correct answer: To trigger compression from a different signal
A sidechain feeds an external signal (like a kick) to control when the compressor reduces gain on the main signal.
Question 4: Which buffer-size setting reduces input monitoring latency while recording?
- A smaller buffer size (Correct answer)
- A larger buffer size
- Higher bit depth
- More plugins
Correct answer: A smaller buffer size
Smaller buffer sizes shorten the round-trip delay, lowering latency at the cost of higher CPU load.
Question 5: You want vocals to feed both a 'Lead Vocal' bus and a parallel compression bus. What routing tool achieves this cleanly?
- A send to the parallel bus plus the main output routing (Correct answer)
- Two inserts in series
- Panning hard left
- Disabling the fader
Correct answer: A send to the parallel bus plus the main output routing
Using a send duplicates the signal to the parallel bus while the main output continues to the vocal bus.
Question 6: In a hardware-style DAW patchbay view, what does an 'output' assignment on a track determine?
- Which bus or output the track's audio flows to (Correct answer)
- The plugin order
- The track color
- The MIDI channel
Correct answer: Which bus or output the track's audio flows to
The output assignment sets the destination bus or physical output that the track's signal is routed to.
Question 7: Why might engineers route all tracks through a single 'Mix Bus' before the master output?
- To apply unified processing and control overall level (Correct answer)
- To increase sample rate
- To mute reverb
- To convert to MIDI
Correct answer: To apply unified processing and control overall level
A dedicated mix bus lets you apply glue compression, EQ, and metering to the full mix before the master.
Music & Audio Advice DAW Signal Flow and Routing 3
A reverb on a post-fader send disappears when you pull the channel fader down.
Why?