The phrase "a sort of echo" is correct and usable in written English.
It can be used to describe something that resembles or has qualities similar to an echo, often in a metaphorical sense.
Example: "The sound of her laughter was a sort of echo of the joy we all felt that day."
Alternatives: "a kind of reflection" or "a type of resonance."
The sound became higher pitched as the match wore on, forming a sort of echo chamber effect when alternating with Sharapova's more guttural emissions.
Shot during all four seasons, the film will be projected at night onto a neutral facade of the house, functioning as a sort of echo of the landscape the house erased.
The social network has been criticized in the past for allegedly showing users stories or status updates that they're more likely to agree with, forming a sort of echo chamber.
Many people learn eventually that, while having a few drinks can delay or reduce anxiety in the moment, it can also create a sort of echo chamber effect heightening those feelings the following day and in the days after.
They've actually got plenty of ideas for how to do this, but because a lot of them operate inside a sort of echo chamber of like-minded opinions, they have yet to realize how unpopular these positions are going to be, if the public ever starts talking about them -- as Rand Paul demonstrated so ably on a different subject (civil rights and disabilities discrimination).
This makes the voorwerp a sort of light echo but on a massive scale.
Green believed that these apparitions are forms of electro-magnetic energy - a sort of faded echo of people whose lives were intensely stressful.
True enough: this formative territory is carried within his work, not as romantic vastification, but a sort of regional echo, possession of an underlying spirit.
Baxter rightly hears in Hutton's theory a sort of philosophical echo of the "fire engines" being developed by Watt, first in Glasgow and then in Birmingham.
Think about it as a sort of Amazon Echo, but with a better sound and a focus on music.
For domestic terrorists -- just as it has for ISIS -- social media "can create for an extreme segment of society a sort of 'radicalization echo chamber' where followers reinforce for each other extremist propaganda and calls for violence," Carlin said. . "White supremacists post to social media, and studies now posit that mass killings are contagious.
