Hi everyone,
As you probably know I play the bagpipes in a band, and a large amount of time is spent tuning the instrument - in perticular the drones. The emit a single tone and must be at a set frequency.
Subtle changes in temperature, air pressure and humidity changes where these drones tune, so it becomes a hassle to tune them often by ear. To get around this, a few companies have made frequency meters - held beside the drone, they display the frequency and you tune the drone to your desired frequency.
However, they can charge around £600 - which seems rediculous to me, becuase they just a moving coil. I've not seen what's inside but I don't imagine it justifies £600!
I've decided to build my own - and have searched for circuits, however, I would appreciate it if you guys could check their design.
The first is here:
http://electroschematics.com/3054/sound-frequency-meter-circuit/
I presume at signal in, I can just put a microphone there?
Many thanks for your time,
Sparky
As you probably know I play the bagpipes in a band, and a large amount of time is spent tuning the instrument - in perticular the drones. The emit a single tone and must be at a set frequency.
Subtle changes in temperature, air pressure and humidity changes where these drones tune, so it becomes a hassle to tune them often by ear. To get around this, a few companies have made frequency meters - held beside the drone, they display the frequency and you tune the drone to your desired frequency.
However, they can charge around £600 - which seems rediculous to me, becuase they just a moving coil. I've not seen what's inside but I don't imagine it justifies £600!
I've decided to build my own - and have searched for circuits, however, I would appreciate it if you guys could check their design.
The first is here:
http://electroschematics.com/3054/sound-frequency-meter-circuit/
I presume at signal in, I can just put a microphone there?
Many thanks for your time,
Sparky