"common voice" is correct and can be used in written English.
For example, "The common voice of the people was heard through the streets, demanding fair treatment for all."
The patchwork of Syria's opposition fighting groups cannot speak with a common voice.
"When they hear letters that are frank and in a common voice, they like that".
That is hardly the most common voice heard in America's white, male and coastal media.
They had found a common voice – and it was demanding "accountability".
Zeitels SM, Casiano RR, Gardner GM, Hogikyan ND, Koufman JA, Rosen CA. Management of common voice problems: Committee report.
"We believe that leaders of the major cities should speak with a common voice," they said in a joint statement.
The closer their friendship, the more likely they are to share a similar perspective and speak with a common voice.
Film is very much a universal and common voice, and we can't limit it to one particular culture.
"I take it as a compliment – you don't get any other Derby actresses with a common voice like mine.
Objective: This report provides the reader with a state-of-the-art update on a number of common voice problems that require phonosurgical intervention.
President Obama and Republican lawmakers devoted their weekly broadcast addresses to the Boston attack, with both sides finding a common voice.
