Monument, and he was "doing his job as a manager" to get more money, but, said Porter, "he didn't know that much about the music." Porter felt that only with himself as engineer, Fred Foster as producer and Anita Kerr as arranger was Orbison going to find the right combination. Las Vegas In August 1966, Porter and his family moved to Las Vegas, Nevada, to purchase United Recording of Nevada from Bill Putnam of United Western Recorders in Los Angeles. Putnam was slimming down his business and wished to sell the studio now that Wally Heider had left it. Porter's first day at the studio was September 1. At that time, United Recording of Nevada had been operating for four years and was the most prominent of the six recording studios in Las Vegas, but it had problems with its equipment, radio frequency interference from nearby broadcast transmitters, and rumbling noises from a railway carrying freight near the building. Porter made recordings at his studio for artists such as personal friend Paul Anka, who would arrive at 2:00 am after his show and record until dawn. Other projects involved recording live shows at Las Vegas hotels, including Buddy Rich's Mercy, Mercy live album at Caesars Palace in 1968. Porter’s studio also recorded Louis Armstrong’s What A Wonderful World. In 1969, Porter and his maintenance technicians modified the 12-input, 4-output mixing console to give it 8 outputs, and made their own 8-track tape recorder from Ampex parts. In August, Presley's producer Felton Jarvis brought the master tape for "Suspicious Minds" into United Recording so that Porter could help him with the song's unusual fade out and back in three-quarters of the way through. A bigger concern was that Jarvis wanted a horn section but there were no empty tracks left on the tape. Porter solved the dilemma by mixing the horns live in the studio as the original session tape played back, the total blend being recorded onto a stereo master. The song became a number one hit; the final one both for Porter and for Presley. Also in 1969, Porter founded Porter Industries, as a basis for engineering and electronics sales outside of his studio. In December 1969, Presley called Porter to ask him to fix the sound for him in the main showroom at the International Hotel (renamed the Las Vegas Hilton two years later); he said he could