First of all, I know absolutely nothing about designing electronic components. That said, I have an audio project in mind that seems possible, but might be cost prohibitive? I'm posting this question here because I don't really know where to start. So, here goes...
I am starting to record my own wildlife sounds and I want to build a portable audio player that will play 16 bit 44.1khz (CD quality) sound files stored on compact flash memory. I've learned through research, that in order to accurately reproduce specific wildlife sounds, I need to achieve a very high signal to noise ratio (>96). Along with that, the player should be capable of an approximate (112 decibels) Dynamic range. A broad frequency range of 20hz to 20khz+ is also desirable. The d/a converted sound should be amplified before exiting via Standard 1/4" mono phone plug to a 15w, 8ohms loud horn speaker (280hz-12.5khz 112db spl).
This is where it gets interesting...
The player will be operated remotely, using some form of RF transmission. A basic telephone style keypad will be used to select the track# for play, pause, stop, and volume control, etc. Individual audio files should repeat until stopped/switching files. Ideal remote range would be 200-300yards.
Remember, nothing fancy beyond the simple basics. No lcd needed, or special title lists or any other unnecessary clutter.
The main unit should be powered by a low dc source (8AA array 9.6?) and have a one button power on/off. The remote should be powered by one 9v or combination of AAs, with a single power on/off.
All electronics must be durable and sustainable to 0 degrees F. (for field use).
Any feedback would be greatly appreciated. Or maybe I'm in the wrong place altogether? Were should I go next?
Thanks in advance!
Cityslick :lol:
I am starting to record my own wildlife sounds and I want to build a portable audio player that will play 16 bit 44.1khz (CD quality) sound files stored on compact flash memory. I've learned through research, that in order to accurately reproduce specific wildlife sounds, I need to achieve a very high signal to noise ratio (>96). Along with that, the player should be capable of an approximate (112 decibels) Dynamic range. A broad frequency range of 20hz to 20khz+ is also desirable. The d/a converted sound should be amplified before exiting via Standard 1/4" mono phone plug to a 15w, 8ohms loud horn speaker (280hz-12.5khz 112db spl).
This is where it gets interesting...
The player will be operated remotely, using some form of RF transmission. A basic telephone style keypad will be used to select the track# for play, pause, stop, and volume control, etc. Individual audio files should repeat until stopped/switching files. Ideal remote range would be 200-300yards.
Remember, nothing fancy beyond the simple basics. No lcd needed, or special title lists or any other unnecessary clutter.
The main unit should be powered by a low dc source (8AA array 9.6?) and have a one button power on/off. The remote should be powered by one 9v or combination of AAs, with a single power on/off.
All electronics must be durable and sustainable to 0 degrees F. (for field use).
Any feedback would be greatly appreciated. Or maybe I'm in the wrong place altogether? Were should I go next?
Thanks in advance!
Cityslick :lol: