The phrase "also overheard" is correct and usable in written English.
It can be used when you want to indicate that something was heard in addition to other information or conversations.
Example: "During the meeting, I also overheard a discussion about the upcoming project deadlines."
Alternatives: "additionally heard" or "further overheard".
A college student at the shop said he also overheard Kaarma talk about shooting burglars but told defense attorneys he didn't believe Kaarma would actually shoot anyone.
Mairead Philpott was also overheard performing a sex act on Mosley, which the Crown said was carried out to keep him on side as part of the plot.
She said she also overheard racist jokes on multiple occasions and that she immediately felt left out at the workplace – excluded from emails and social events and working alongside colleagues who didn't bother to learn her name.
The officials compared the intercepted messages, which they described as cryptic and ambiguous, with the pattern of those picked up last spring and early summer, when Qaeda operatives were also overheard talking about a big operation.
I also overheard conversations, and could actually understand some of what people were saying: two men's comments about a local futbol team, stock tips exchanged by chic women with briefcases.
The news agency added that Mr. Obama was also overheard asking Mr. Sarkozy to press the Palestinian leadership not to apply for membership to other U.N. agencies, since U.S. law would require his administration to then stop contributing funds to those organizations.
At the party, he also overhears the familiar voice of a lawyer named Herman Tolliver.
We also overhear the first whisperings about the "charismatic son of an immensely wealthy Jidda clan".
But when subjects thought that there were four others also overhearing the seizure, they came to the student's aid only 31% of the time.
Ditto caches the object at routers on the path, and it also overhears and caches part of the video at routers which are off the path within radio range of routers on the path.
After receiving CTS, S extracts the channel state information γ SD and γ S R n. S and D can also overhear frame from other candidate relays to estimate the channel state information between S and R x, R x, and D, and D will also piggyback the γ R x D in its CTS frames.
