What was found
A WHINE STARTED AT APPROXIMATELY 6K FT MSL. IT GOT LOUDER AS WE CLIMBED TO 15K FT MSL. WE SLOWED FROM 285 KTS IAS TO 210 KTS IAS AT 15K FT MSL, THE WHINE DECREASED SOME BUT NOT AS MUCH AS DESCENDING. WHINE STOPPED AT 7K FT MSL. BOTH INTERNAL AND EXTERNAL COMMUNICATION WAS EXTREMELY DIFFICULT. REMOVED AND REPLACED RT SLIDING WINDOW SEAL PN S141N493-6. NO SERIAL NUMBER IAW AMM 56-11-53- 4. PERFORMED SATISFACTORY PRESSURIZATION CHECK IAW AMM 05-51-24-2. PRESSURIZED AIRCRAFT TO 7 PSID WITH NO LEAKS OR NOISE DETECTED AT THIS TIME.