The phrase "substantial noise" is correct and usable in written English.
It can be used to refer to a loud noise that is particularly loud or significant. For example, "The construction team was making a substantial noise outside my window all morning."
The substantial noise increase criterion is independent of the absolute noise level.
In the first six and a half years, I rarely heard any substantial noise coming from the upstairs apartment.
(f) Highway agencies shall define substantial noise increase between 5 dB(A) to 15 dB(A) over existing noise levels.
"We demonstrated the automatic, passive recovery capability of our system after periods of rapid and substantial noise that force a protocol failure," say the team.
Substantial noise reduction was obtained throughout the 0.7 2.5 kHz frequency range, with flow velocities up to 50 m/s.
Substantial noise reductions can thus be achieved by using a low speed approach and a displaced runway threshold on landing, thereby increasing distance to listeners on the ground.
This phenomenon can be observed in Fig. 2, where Fig. 2(A1) is a typical MZI clock waveform, and (A2) is its local enlargement, from which the presence of substantial noises can be seen.
We show how to determine the identity of and proximity to distinct bifurcations despite the presence of substantial environmental noise.
During functional MRI image acquisition, the scanning equipment generates substantial auditory noise, the effects of which are usually ignored.
This can also lead to a substantial flicker noise at the junction regions due to the existence of traps in the depletion region.
The emerging path shows preferential directions, even though substantial stochastic noise may be present.
