Background noise. - Printable Version +- KOMA Elektronik Community Forums (https://community.koma-elektronik.com) +-- Forum: KOMA Elektronik Forum (https://community.koma-elektronik.com/forum-7.html) +--- Forum: Main Forum (https://community.koma-elektronik.com/forum-8.html) +--- Thread: Background noise. (/thread-29.html) |
Background noise. - Hedi - 01-15-2023 Hi, I just received my "Koma Field Kit". Before I connect anything, I plug it into the monitor speaker via the "Master" output. I have constant background noise. I don't think it's due to my listening setup. Can you tell me what it is? Please . And how to solve this? Thanks. RE: Background noise. - Hedi - 01-19-2023 Since no one answers my question, I have to make my own conclusion. Thanks to Koma Electronik for their support. RE: Background noise. - chrisi - 01-19-2023 Hey! The Field Kit is likely not the most noise-free device out there, in big part this is due to the high amounts of amplification available from the 'GAIN'-setting. Every Field Kit mixer channel has an input gain of x1000. This is necessary to amplify low-amplitude signals like the pickup coils for example. The noise floor of a Field Kit mixer channel, using professional line level signal as the reference (+4 dBu / ~3.5V peak to peak), is down ~60dB. With full 6.5Vpp signal as the reference level, this translates down to -65dB. This is of course far from todays digital -100dB noise floors but that's also not we are trying to compete with. You can compare the noise/hiss you are experiencing with the aforementioned numbers if you have access to a DAW with some sort of a Spectrum Analyzer utility. If the noise floor is around the aforementioned numbers, there's nothing wrong with your device! Also, don't get confused with dBFS / dBU. In any normal condition / use case the noise is not perceivable if any wanted signal is present at any given time. Also, proper gaining really helps. I hope this answer cleared out some things! RE: Background noise. - Hedi - 01-19-2023 Hi, Your answer is quite clear. It remains to find a way to get the most out of this machine. Thank you so much. |