AudioOutI2SCanPlay

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ArduinoSound

AudioOutI2S.canPlay()

Description

Check if the specified input can be played out using I2S

Syntax

AudioOutI2S.canPlay(input);

Parameters

input: input to check (type AudioIn)

Returns

1 in the input can be played using play() or loop(), 0 otherwise

Example

/*
This example reads audio data from an Invensense's ICS43432 I2S microphone
breakout board, and prints out the amplitude to the Serial console. The
Serial Plotter built into the Arduino IDE can be used to plot the audio
amplitude data (Tools -> Serial Plotter)

Circuit:
* Arduino/Genuino Zero, MKRZero or MKR1000 board
* ICS43432:
* GND connected GND
* 3.3V connected 3.3V (Zero) or VCC (MKR1000, MKRZero)
* WS connected to pin 0 (Zero) or pin 3 (MKR1000, MKRZero)
* CLK connected to pin 1 (Zero) or pin 2 (MKR1000, MKRZero)
* SD connected to pin 9 (Zero) or pin A6 (MKR1000, MKRZero)

created 23 November 2016
by Sandeep Mistry
*/

#include <ArduinoSound.h>

// create an amplitude analyzer to be used with the I2S input
AmplitudeAnalyzer amplitudeAnalyzer;

void setup() {
// Open serial communications and wait for port to open:
// A baud rate of 115200 is used instead of 9600 for a faster data rate
// on non-native USB ports
Serial.begin(115200);
while (!Serial) {
; // wait for serial port to connect. Needed for native USB port only
}

// setup the I2S audio input for 44.1 kHz with 32-bits per sample
if (!AudioInI2S.begin(44100, 32)) {
Serial.println("Failed to initialize I2S input!");
while (1); // do nothing
}

// configure the I2S input as the input for the amplitude analyzer
if (!amplitudeAnalyzer.input(AudioInI2S)) {
Serial.println("Failed to set amplitude analyzer input!");
while (1); // do nothing
}
}

void loop() {
// check if a new analysis is available
if (amplitudeAnalyzer.available()) {
// read the new amplitude
int amplitude = amplitudeAnalyzer.read();

// print out the amplititude to the serial monitor
Serial.println(amplitude);
}
}

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