Hello Community,
this is my first post and i read a lot of Threads before.
Thanks Paul a lot for the grat work on the audio library.
I did a few different Arduino Hardware Projekts and also Feather impressions at the past.
Now i want to do a Audio project and in this case a startet fith Teensy
My Environment:
- Teensy 4.1
- Adafruit SPH 0645 I2S Mic.
- Arduino IDE 1.8.12
- Audacity 2.3.3
- Windows 10 Pro 1909
My Wiring:
SPH0645 <> Teensy4.1
LRCL <> 20
DOUT <> 8
BCLK <> 21
GND <> GND
3V <> 3V
SLC N.C.
My Program:
I got the program from online Audio System Designer:
My problem / unanderstaning:
The Teensy appers as digital audio interface in Windows.
Tried to test it in Audacity and want to record some tracks.
In silence, the signal shows a relatively high level (see bar at screenshot)
als the signal in the track shows outliers at regular intervals.
Does anyone have any guess how I could fix this?
this is my first post and i read a lot of Threads before.
Thanks Paul a lot for the grat work on the audio library.
I did a few different Arduino Hardware Projekts and also Feather impressions at the past.
Now i want to do a Audio project and in this case a startet fith Teensy
My Environment:
- Teensy 4.1
- Adafruit SPH 0645 I2S Mic.
- Arduino IDE 1.8.12
- Audacity 2.3.3
- Windows 10 Pro 1909
My Wiring:
SPH0645 <> Teensy4.1
LRCL <> 20
DOUT <> 8
BCLK <> 21
GND <> GND
3V <> 3V
SLC N.C.
My Program:
I got the program from online Audio System Designer:
Code:
#include <Audio.h>
#include <Wire.h>
#include <SPI.h>
#include <SD.h>
#include <SerialFlash.h>
// GUItool: begin automatically generated code
AudioInputI2S i2s1; //xy=146,135
AudioAnalyzeRMS rms1; //xy=350.00000381469727,291.00000381469727
AudioAnalyzeFFT1024 fft1024_1; //xy=357,358.0000057220459
AudioAnalyzeNoteFrequency notefreq1; //xy=358.00000381469727,417.0000057220459
AudioAmplifier amp1; //xy=379.00000381469727,109.00000190734863
AudioAmplifier amp2; //xy=379.00000381469727,173.00000286102295
AudioOutputUSB usb1; //xy=628.0000076293945,160.00000190734863
AudioConnection patchCord1(i2s1, 0, amp1, 0);
AudioConnection patchCord6(amp1, 0, usb1, 0);
//AudioConnection patchCord2(i2s1, 0, rms1, 0);
//AudioConnection patchCord3(i2s1, 0, fft1024_1, 0);
//AudioConnection patchCord4(i2s1, 0, notefreq1, 0);
//AudioConnection patchCord5(i2s1, 1, amp2, 0);
//AudioConnection patchCord7(amp2, 0, usb1, 1);
// GUItool: end automatically generated code
void setup() {
// put your setup code here, to run once:
AudioMemory(50);
amp1.gain(1.0);
amp2.gain(1.0);
//Serial.begin(115200);
//Serial.println("started");
}
void loop() {
// put your main code here, to run repeatedly:
//Serial.print( rms1.read());
//Serial.println(" rms_1");
}
My problem / unanderstaning:
The Teensy appers as digital audio interface in Windows.
Tried to test it in Audacity and want to record some tracks.
In silence, the signal shows a relatively high level (see bar at screenshot)
als the signal in the track shows outliers at regular intervals.
Does anyone have any guess how I could fix this?