method of sound level in order to calibrate monikanavaisessa nentoistojrjes telmss and a multi-channel sound systemBECH,,SOERENSUOKUISMA,,PEKKAZACHAROV,,NICK
method of sound level in order to calibrate monikanavaisessa nentoistojrjestelmss and a multi-channel sound systemSUOKUISMA, PEKKABECH, SOERENZACHAROV, NICK