The phrase "assert its voice" is correct and usable in written English.
It can be used when discussing the importance of expressing opinions, perspectives, or identities, particularly in contexts like social movements, organizations, or personal expression.
Example: "In order to influence policy changes, the community must assert its voice in the upcoming town hall meeting."
Alternatives: "express its opinion" or "make its presence known".
Partly, the EU failed to assert its voice because, at the beginning of the decade, it was scrambling to contain the impact of inflating US hubris, fuelled by the defeat of Saddam Hussein.
But, such is the symphonic nature of Dvořák's writing, the violin sometimes struggles to assert its voice compared to the solo cello in the B minor concerto, so it was in the finale, with its Bohemian dances, that Ferschtman's vivacious musical personality emerged most forcefully.
It would allow Congress to assert its own voice on Iraq policy, after falling short of that goal in most such votes throughout the year, he said.
The European men's collections gave some strong hints, though American menswear, never too loud and always pragmatic, often manages to assert its own voice.
Congress needs to assert its legislative supremacy.
and the Collective Security Treaty Organization to assert its leadership.
The syncopations may come from chords and patterns she plucks on her guitar, from the self-multiplying backup vocals she surrounds herself with, or from the jazzy vibrato in her voice as it asserts its improvisational liberty.
Chinalco unequivocally asserts its independence.
"The president called for a national dialogue on the gun issue," Gross said, "but has not asserted his voice or leadership in that dialogue". He said he hopes this time will be different.
Nick Clegg will be using this opportunity to assert the voice of the Liberal Democrats after Leveson criticised both Labour and the Conservatives for three decades spent too close to the press.
Mailer may well simply have been, by temperament, more of a philosopher than a fictioneer (Lethem likens one of the young Mailer's insights to those of Zizek), a writer whose ideas and whose own voice — and whose need to assert that voice — take precedence over the flowering of otherness, over the full realization of a world in fiction.
