The phrase "audio lines" is correct and usable in written English.
It can be used when referring to the pathways or connections for transmitting audio signals, often in the context of audio equipment or technology.
Example: "The audio lines need to be checked for any interference before the live performance."
Alternatives: "audio channels" or "sound lines".
MIT students could listen via ordinary radios connected to direct audio lines that served just the dorms, which meant that the station didnt need a radio license.
CES has always been a big show for the company's TV and audio lines, and this year's no different.
JVC makes many decent video products, among other things, and Kenwood is noted for its popular car audio lines.
They seized the building, held it for six hours and, when running out of ammunition, the last eight attackers destroyed it and sacrificed themselves using explosive charges, but they were unable to broadcast due to the cutting off of the audio lines from the main studio to the tower as soon as the station was seized.
All of these filters receive input from the audio line-in (blue phone jack) and send output to audio line-out (green phone jack).
Ms. Branch, a specialist in Sony's personal audio line, assured me that the DEJ01 was a fine model.
Soundfreaq Sound Step - This $139 dock supports audio line-in and Bluetooth and includes both a standard iPod/iPad port as well as a separate USB port for charging other devices.
The film's effective climax depicts how, in the middle of chaos, CNN manages to keep its audio line open, describing the bombardment from the inside, as the network's staff members, including the reporters Peter Arnett (Bruce McGill and John Holliman John Carroll Lynchch), risk their lives.
His studio — a man-cave-style haunt slathered floor to ceiling with Nixon memorabilia and conspiracy books — has been stocked with professional lighting and a broadcast-quality audio line by Stone's 19-year-old grandson, Nick.
This fall, the company will introduce an audio line of turntables, speakers and, most important, audiophile-quality headphones, rendered in leather and brushed stainless steel, which it intends to sell for $450 to $650.
There's even an audio line-out built in.
