soundspotter / arduinouno_audiocodecmikroe506 Goto Github PK

Has anyone tried using the microphone input? I hooked up a regular headset which has two seperate connectors for I/O and tried the microphone example. I only hear loud sounds when I blow air to the microphone. Otherwise I hear nothing when I speak. Has anyone bumped into such a problem?

Cheers,

Hi, I got the codec board working following your instuctions , thanks a lot for sharing this.

It seams like I can only add code in the timer1 section because of while(1); in void loop()
if i try and run functions in there from anothe lib I get

error

TIMECODE_MAIN1.ino: In function 'void __vector_11()':
TIMECODE_MAIN1:89: error: local frame unavailable (naked function?)
local frame unavailable (naked function?)

I think ISR_NAKED stops any external function,.

is there a way to run anything in the loop with a while() statement without stopping the codec, or is this really maxing out every millisecond of the UNO's compute power ??

D10 -> ADCL + DACL output (parallel) via 220 Ohm resistor in series

I've connected this up and can playback the test sin wave fine. But as a newbie, I'm curious why this series resistor was necessary and how it was calculated? The datasheet on the WM8731 says it should support all VCC lines of 3.3V?

Thanks,
Joe

Hi,

I am using this library to developing an audio application. I need to record audio through Audio Codec-Proto microphone and send it or save it on SD Card with Arduino.

I tried the "sine_generator" example and it works but then, I tried the "mic_transmitter.ino" example but only noise appears on the console. How can I obtain audio data from the microphone on the Audio Codec-Proto?

Thank you.