Problem playing .wav file

Other Hardware Audio
1

I am trying to play a .wav file on an Arduino Uno. I get no output from the speaker. It appears to be reading the SD card, as it does not return a fail on the serial monitor.

I believe the speaker is wired correctly, as it played some noise when I ran some other code. I am not familiar with the MicroSD card reader or audio conversion, so any help would be appreciated.

I tried to follow this tutorial:

My .wav settings are: 16000hz, Mono, PCM unsigned 8 bit

#include "SD.h"
#define SD_ChipSelectPin 4
#include "TMRpcm.h"
#include "SPI.h"

TMRpcm tmrpcm;

void setup(){
tmrpcm.speakerPin = 9;

Serial.begin(9600);
Serial.println("i turned on");
if (!SD.begin(SD_ChipSelectPin)) {
Serial.println("SD fail");
return;
}

tmrpcm.setVolume(9);
tmrpcm.play("shark.wav");
}

void loop(){

}

fritz.PNG
fritz.PNG926×641 259 KB

2

Please read this:-
How to use this forum
Because your post is breaking the rules about posting code.

I tried to follow this tutorial:
https://maker.pro/arduino/projects/arduino-audio-player

Yes and that is probably where you mistakes are. We need to know what YOU did not what you were following and think you did.

This is a very common problem and you have misunderstood a step or not done it right. So give us a clue what did you do. This means clear photographs where we can follow the wiring. Fritzing layout diagrams are useless please don't post them again here.

3

Sorry. 2nd attempt: Arduino Uno

I have wired it as:
SD Module:
CS-4
SCK 13
MOSI 11
MISO 12
VCC 5v on arduino
Grnd to arduino ground

Pin 9 of arduino through 6.8k resistor to base of BC 546b transistor
Emitter to ground
Collector to ground side of 1w 8ohm speaker

No sound comes out of the speaker. I even ran the test program for TMRpcm with the same result.

Again, any guidance is appreciated.

#include "SD.h"
#define SD_ChipSelectPin 4
#include "TMRpcm.h"
#include "SPI.h"

TMRpcm tmrpcm;

void setup(){
tmrpcm.speakerPin = 9;

Serial.begin(9600);
Serial.println("i turned on");
if (!SD.begin(SD_ChipSelectPin)) {
Serial.println("SD fail");
return;
}

tmrpcm.setVolume(9);
tmrpcm.play("baby.wav");
}

void loop(){  

  }

0530202030a.jpg
0530202030a.jpg2880×2160 756 KB

4

This is the second image

0530202029.jpg
0530202029.jpg2880×2160 1.43 MB

5 
tmrpcm.play("baby.wav");

Try

tmrpcm.play("BABY.WAV");

The SD library may require strict 8.3 filenames. 8.3 filename - Wikipedia

6

MarkT:

tmrpcm.play("baby.wav");

Try

tmrpcm.play("BABY.WAV");

The SD library may require strict 8.3 filenames. 8.3 filename - Wikipedia

I have tried that. No change. Thank you for the suggestion.