As detailed in this post:
https://forum.pjrc.com/threads/3062...laying-audio-sound-effects-through-Teensy-3-1
I'm in the process of building a PKE meter replica from Ghostbusters. I have the lights and servos working pretty well, but I've decided at the eleventh hour to add sound effects. Given my inexperience I think the most straightforward way for me to do that will be to play snippets of the actual sound effect using the Teensy Audio Adaptor Board. I've pulled usable clean snippets of the sound effect from various online sources. Perhaps at some point I'll work on synthesizing the sound effect from scratch.
A few questions:
I'm only going to need a few snippets of audio clips to do what I want to do. A 32GB micro SD card seems like overkill. Can the 128 MB W25Q128FVSIG flash memory chip take the place of that card, or does it have to be used in conjunction with the card reader? If the card reader isn't required how does one transfer the audio files to that flash chip?
I don't suppose this W25Q128FVSIG flash memory chip is sold locally anywhere? I'm not seeing it listed at the PJRC store.
Do I power the Audio Adapter from the 3.3v output of the Teensy (probably a Teensy 3.2)?
I see that the board says "Do not short VGND to GND." What is VGND?
If I used this Sparkfun Mono Amplifier:
https://www.sparkfun.com/products/11044
would I power that from my 5V regulated supply (reduced from 6v of batteries)? I wouldn't run that from the Teensy 3.3v output, right?
That Sparkfun Amp has a shutdown pin to save power. I assume it would be a simple matter to trigger a digital output to turn that on and off?
I think that's it for now. I hope to order this and some other stuff today or tomorrow.
Thanks.
Shawn Marshall
Portland, OR
https://forum.pjrc.com/threads/3062...laying-audio-sound-effects-through-Teensy-3-1
I'm in the process of building a PKE meter replica from Ghostbusters. I have the lights and servos working pretty well, but I've decided at the eleventh hour to add sound effects. Given my inexperience I think the most straightforward way for me to do that will be to play snippets of the actual sound effect using the Teensy Audio Adaptor Board. I've pulled usable clean snippets of the sound effect from various online sources. Perhaps at some point I'll work on synthesizing the sound effect from scratch.
A few questions:
I'm only going to need a few snippets of audio clips to do what I want to do. A 32GB micro SD card seems like overkill. Can the 128 MB W25Q128FVSIG flash memory chip take the place of that card, or does it have to be used in conjunction with the card reader? If the card reader isn't required how does one transfer the audio files to that flash chip?
I don't suppose this W25Q128FVSIG flash memory chip is sold locally anywhere? I'm not seeing it listed at the PJRC store.
Do I power the Audio Adapter from the 3.3v output of the Teensy (probably a Teensy 3.2)?
I see that the board says "Do not short VGND to GND." What is VGND?
If I used this Sparkfun Mono Amplifier:
https://www.sparkfun.com/products/11044
would I power that from my 5V regulated supply (reduced from 6v of batteries)? I wouldn't run that from the Teensy 3.3v output, right?
That Sparkfun Amp has a shutdown pin to save power. I assume it would be a simple matter to trigger a digital output to turn that on and off?
I think that's it for now. I hope to order this and some other stuff today or tomorrow.
Thanks.
Shawn Marshall
Portland, OR