Hello Arduino Forum!
I am planning to make a voice changer project that will fit inside a big bushy beard.
Just a heads up this is my first ever foray into Arduino, so a lot of technical aspects i'm still delving into.
My main concern from looking at what's already been done with voice changers is that the audio output often sounds very fuzzy and the voice is quite muffled.
At my current stage I am unsure if it's due to the input (mic) or output (speaker) quality OR the processing of the audio that causes this issue.
Here are some of the parts I intend to use for this Project
1 x Arduino Uno
2 X 9 Volt Battery
Audio Processor options
1 x SmartWAV Audio processor
http://www.vizictechnologies.com/smartwav
(Arduino page link: Arduino Playground - SmartWAV)
OR
1 x Adafruit mp3 shield for Arduino (mono or stereo options available)
Adafruit Music Maker MP3 Shield for Arduino (MP3/Ogg/WAV...) : ID 1790 : $29.95 : Adafruit Industries, Unique & fun DIY electronics and kits (mono)
Adafruit Music Maker MP3 Shield for Arduino w/3W Stereo Amp [v1.0] : ID 1788 : $34.95 : Adafruit Industries, Unique & fun DIY electronics and kits (stereo)
stereo comes with 3W/channel stereo audio amplifier
Adafruit Wave Shield for Arduino Kit [v1.1] : ID 94 : $22.00 : Adafruit Industries, Unique & fun DIY electronics and kits
Mic Input
1 x Electret Microphone Amplifier - MAX9814 with Auto Gain Control
And I've also found these audio amps and other products I'm thinking could help this project
such as this TPA2005D1 Class D Audio Amp
https://developer.mbed.org/users/4180_1/notebook/tpa2005d1-class-d-audio-amp/
which i found from this page with other options
https://developer.mbed.org/users/4180_1/notebook/using-a-speaker-for-audio-output/
and there's also this device, but I'm afraid that it's a standalone processor apart from the arduino, which is the basis of this project
Apologies if this post is too long and link intensive!
In short, do you guys have any tips or ideas in regards to high quality mic => speaker output?
Thanks in advance!