The phrase "a simultaneous impression of" is correct and usable in written English.
It can be used when describing an experience or perception that occurs at the same time as another, often in contexts related to art, music, or sensory experiences.
Example: "The painting created a simultaneous impression of tranquility and chaos, drawing the viewer into its complex narrative."
Alternatives: "a concurrent feeling of" or "an instant perception of".
The stage is decked with giant screens, but it is low and reaches right into the arena, giving the simultaneous impression of a spectacle and being "one with the fans", who sing the choruses back like some enormous choir.
Even the round creations, however, have the power to amaze: a zippy crystallized ginger glaze on a doughnut for the Lunar New Year; an homage to the carrot cake that improves on its model; a chocolate blackout doughnut that gives the simultaneous impression of being impenetrably dense and extraterrestrially light.
At times in college he looked unblockable, even though he also managed to convey the simultaneous impression of not always knowing where he was going.
I explain to myself his bewildering style thus: he is attempting the impossible with it a certain very particular form of the impossible; namely, to produce upon the reader, as a painting produces upon the gazer, a number of superimposed, simultaneous impressions.
Poetry, to Cendrars, was action sealed into words by bold new devices: simultaneous impressions in a jumble of images, feelings, associations, surprise effects, conveyed in a halting, syncopated rhythm.
Simultaneous impressions are also taken of all fingers and thumbs.
When a patient is getting better with time with a simultaneous increase of the liver blood flow and improvement of dexmedetomidine clearance, he/she needs more sedative agents, thus giving the false impression of an association between dexmedetomidine clearance and the dose.
It's like watching a simultaneous translation of the play.
In this way, we find a "simultaneous enactment of events from a multiplicity of positions".
There appears to be a simultaneous crisis of political leadership around the democratic world.
