Review of Kemo Listening Stethoscope

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Elec­tronic kits can be worth­while for us as field record­ing geeks. This time I bought the Kemo kit for a Lis­ten­ing Stetho­scope since I was inter­ested in ampli­fy­ing the soft­est of sounds, such as wind blow­ing through the trees. For the price of 11.80 €, I was skep­ti­cal at first but with a lit­tle sol­der­ing the board works just fine. The offi­cial prod­uct descrip­tion is quite shady when they say that their device enables you to lis­ten through walls, etc. Appar­ently some­body lacked the fan­tasy of doing some­thing legal with the stethoscope.

How­ever, if you look for a quick and dirty record­ing of soft sounds, the Kemo Lis­ten­ing Stetho­scope is a good choice, since the IC’s triple op amp enhances ordi­nary sounds very well. But still, don’t expect crys­tal clear one-to-one real­is­tic record­ings, you need to be able to either fil­ter out or ignore the high fre­quency noise. Another chal­lenge is to keep the right dis­tance between mic and head­phones because the device is so sen­si­tive that it is prone to feed­back. Need­less to say, you’ll only get a mono recording.

For you to get an impres­sion, I made a very dirty record­ing out of the win­dow with some­body prac­tic­ing the vio­lin next door. I con­nected the head­phone out­put with a male mini jack that went into the line in  of my old Tas­cam DR-07.

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