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Questions tagged [sound]

sound is a vibration that propagates as a typically audible mechanical wave of pressure and displacement, through a transmission medium such as air or water.

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30 views

ESP32 playing wav sounds distorted or too fast (but not all wav's)

I am building a sound project on an ESP 32 via I2S using an example from: https://github.com/nhatuan84/esp32-i2s-sdcard-wav-player It works fine with the example wav file t.wav posted in the ...
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1answer
28 views

How to use more than 2 I2S microphones on MKR Zero?

I am trying to build a portable device that can record from at least 3 microphones. I had a look and saw I2S is good for audio so I bought an Arduino MKR Zero to read them with. I was wondering how to ...
3
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1answer
70 views

exit status 1 error compiling for board arduino/Genuino Uno when tone code is used

I am just trying to use an ultrasonic sensor with a buzzer but the buzzer doesn't respond to my code. I mean it doesn't make any sound. I tested it to check if by sending 5 volts to it, it will make a ...
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0answers
29 views

How to stop the screeching noise that comes from buzzer?

I use sfm-27 dc 3-24v Buzzer. It sounds fine if i close the buzzer using my palm but if i doesn't close it, it will make a screeching noise. I play melody using the buzzer so the sound is important. ...
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2answers
30 views

A recommendation for a fast-response-time-resolution-mp3-module for arduino

I am working with Arduino which activates a box which is similar to a Skinner Box. Some of the output sound stimuli are sine waves with duration of less then 5 milliseconds. I output the sounds using ...
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1answer
42 views

Why does my code treat my sound sensor as if it's always HIGH

I have a sound sensor that was working perfectly fine as I was using it as a clap sensor to turn lights on and off. However, I tried to change the code to make it work a little smoother and for ...
1
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1answer
39 views

How to detect patterns in an FFT output?

I have an FFT output from a microphone and I want to detect a specific animal's howl from that (it howls in a characteristic frequency spectrum). Is there any way to implement a pattern recognition ...
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0answers
24 views

connected collar with GPS, temperature and heart rate sensors + microphone

I am taking part in a project as part of a challenge and I'm in charge of the embedded systems part, this is my first time working on a project of this scale. I am looking for a way to wirelessly send ...
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1answer
33 views

Having an issue accessing values from a pointer

Context This may be more of a C++ question than an arduino specific question, but it's dealing with arduino c++ so I thought I'd start here. I'm building a class to abstract some simple melody ...
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1answer
67 views

Writing Data through Pin at certain frequency

I have an Arduino UNO which is connected to an KLZ25 board, the Arduino sends an 1MHz Clock at Pin 9 and now I should write the PDM-Data with 1 Mhz at pin 8. But i don't know how to write with such a ...
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1answer
24 views

I am not able to set the correct configuration of sound module

I have been trying to make sound reactive LED lights but my sound module is detecting only very close voice the LED react only when I press it to the speaker with my hands I have tried to set the ...
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0answers
125 views

How to build image with ultrasound sensors HC-SR04 [closed]

There is a simple algorithm on Wikipedia: how to build ultrasound image. And I want to build one. Resolution and presision are of no importance, I just want to do this for the case of study - I want ...
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2answers
278 views

Play computer *.wav files through Arduino

I am doing mice behavioral training. I have an arduino-controlled box for that. The sounds are play using Mp3 player controlled b the arduino. However, the mp3 player is not good enough for my needs. ...
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0answers
34 views

Music Reactive Fountains

I want to make Music Reactive Fountain. When You say "Holaaaaaa" The fountain (PWM arduino signal) should increase making the fountain reach it's maximum height according to the amplitude of my voice ...
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1answer
158 views

Analog output gives a close range of values

I try to get a good range of values from VMA309 sound sensor. However, when I connect it properly it gives me a range of values +/-5 like below. The documentation says it should give numbers ...
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2answers
185 views

How to read sound sensor readings and light up sensor with water sensor if the readings is above threshold & when water is detected for 2 mins?

I am student that is new to Arduino and working on a project to trigger an alert if the sound level detected exceeds the threshold for a period of 2 mins. But I am stuck, would like to check how do I ...
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2answers
64 views

Where does the sound come from this board? [closed]

As the question says, i can't figure out where the sound comes from on this board that i bought, nothing on the manuals and can't see any speaker on the board... It is a "RFID Proximity Entry Door ...
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4answers
78 views

help with a loop

I recently got into programing and I'm making an alarm. I cant figure out how to make a buzzer loop. I have two blinking LED's and two fading ones. Now I plan to have sound and it won't work. It only ...
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2answers
64 views

Detecting Ultrasonic sensor malfunction within the arduino sketch [closed]

Is it possible to write code in the sketch that checks the functioning of the ultrasonic sensor? Say if the sensor stopped working then the arduino will alert the user in the serial monitor.
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0answers
56 views

TM1638 making high pitch sound?

I have a TM1638 board with 8 seven-segment displays, 8 LEDS, and 8 buttons. Each time multiples leds are on, the board makes an annoying high pitch sound. I'm controlling it with an Arduino Uno. ...
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2answers
300 views

Digital Sound sensor

I am having trouble with my digital sound sensor. My goal: Clap 2 times and a led goes on. So I wrote this code. I don't know if it is correct or not. This happens: If I clap, from the serial monitor ...
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3answers
81 views

How to improve response time of this sound operated LED?

I have written the following code for lighting an LED on a clap ( using sound sensor) that I have connected via a resistance of 330 OHM on pin number 4. However, when I clap once, close to the ...
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0answers
177 views

PCM library - Timer0

I would need a quick help if possible because I have a project with the deadline tomorrow night. On my Uno (atmega328p in fact), I need to communicate with a SPI flash to transfer music and then, take ...
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1answer
282 views

Sound localization using two mics,arduino uno on matlab

I have been trying to achieve this for a long time using the ITD method and have gone through various articles on the net. I want to know if its possible to actually achieve sound localization using ...
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0answers
28 views

Power on, power off voice using fx board

I played with one of those Adafruit FX sound boards in a project a while ago, and see a lot of potential uses for it. I would like to create “something” for my daughter, when she turns the lights on, (...
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0answers
221 views

Connecting RCA audio cables to Arduino

I'm working on a project which needs better audio quality than just a piezo buzzer, so I went out and bought a pair of used cheap speakers for $3. It turns out that they have RCA audio inputs rather ...
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2answers
49 views

Arduino tone frequency isn't always precise

I'd like to play an asynch 'beep' sound (2.5kHz, pin 8) on an Arduino Mega with several other modules connected. I write them here, just for the record: SDCard reader and RFID reader through SPI bus, ...
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3answers
3k views

Is there a way to play .mp3 files from an SD card on Arduino?

Is there a way to have mp3 files on an SD card in the SD card shield for the Arduino and play an mp3 file on that SD card with a buzzer? If possible also with something like: playmp3(thismp3.mp3); ...
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1answer
216 views

Play .Wav sound only once on switch change [closed]

I have a project where if you change the value of the spdt switch the colour of the LEDs change. As well as this a .wav file plays. The problem is I only want the .wav to play once. At the moment it ...
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1answer
3k views

Arduino uno audio output quality improvement [closed]

I am new to electronics. I am going to play a sound truck from SD card when user push a button, Well This is very easy and there are lots of methods and codes to play it. the problem is with sound ...
5
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2answers
167 views

Does the tone() generates unwanted signal?

I was trying to use the tone function for another project but I found that it also generates an undesired frequency (not the harmonics above of square wave it generates) but a lower frq square wave. ...
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3answers
653 views

Voice recognition without module, is it possible? [closed]

I'm trying to figure out how to process a voice signal for simple purposes. Wherever I look people using or suggesting recognition modules for Arduino. What I'm wondering: is this possible to make a ...
0
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1answer
70 views

Can an accelerometer be used to detect heart sound?

I've recently come across accelerometer and how it can detect electrical mechanical response. I was wondering can it be used to detect heart sound? Lets say you attach the device close to your chest (...
2
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1answer
319 views

Is there any arduino microphone that can record heart sound?

I'm currently undergoing a project where I record heart sound (mechanical response) and send it over bluetooth to an app. However I'm finding it really hard to find an arduino microphone or just ...
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3answers
673 views

LEDs not working with tone() function

I have a strange issue. I have 3 LEDs, each is supposed to beep with a correlated tone... Imagine the beginning of a racing game (beeping with traffic lights). Here's my code: #include "pitches.h" //...
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1answer
624 views

Rotate Robot head according to Sound level

I'm currently working on a robot using an Arduino and I'd like to control robot's head like this: Imagine that it is on your desk and it can turn it's head through a range of 150 degrees like a human ...
1
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1answer
341 views

Can we use yx5300 to play audio from a file in Arduino?

I want to play a file that I have in my USB device through a yx5300 mp3 module. I have a file in my USB device at path Music/hello.mp3. I want to play this file using the yx5300 module or some other ...
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1answer
131 views

Changing parameters of pulseIn() to sense different materials

I have a ultrasonic sensor and in order to get the distance I use the pulseIn() function included in the arduino library, and then change it to distance. As the ultrasounds does not work equally in ...
0
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1answer
2k views

Recording and playback sound

I'm working in an art project, is some kind of loop between contact microphones and walkie talkies. I want to create some kind of noisy feedback. I'm putting one walkie-talkie inside of a bottle, and ...
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0answers
40 views

LEDs interfering with analog sound detection

My project is a sound reactive LED display on an Arduino Nano. There are 112 WS2811s in series connected to 5v, Gnd and D5 via 220ohm resistor. I have a Keyes style sound detection module that has an ...
0
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1answer
291 views

Arduino HC-SR04 water experiment

I am working on an experiment with the HC-SR04 sound sensor, and i am using it to record the speed of sound. I successfully measured the speed of sound in air, but when measuring it in water, I ...
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2answers
338 views

Triggering Sound - Arduino + Contact Mic

I previously created a sound installation using contact mics and computer (ableton+max msp) where sound would be triggered when people touched/tapped on the object/surface. Now I want to do something ...
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0answers
33 views

Not hearing PlayBack from code that records and plays back MIDI

I have altered some code that i found online that records and playback midi data from a midi controller. from my testing i am pretty sure that notes are being recorded from my midi controller, i have ...
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1answer
246 views

Execute function until called again?

I am building a simple security system with my Arduino Uno. I have an alarm() function: void alarm() { tone(8, 3300, 200); delay(200); tone(8, 3000, 200); delay(200); } When I call it in the ...
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1answer
2k views

Why is the piezo buzzer not making any sound?

My ciruit: My code: // Pin 13 has a LED connected on most Arduino boards. // give it a name: int led = 13; const int buttonPin = 2; // the setup routine runs once when you press reset: void setup() ...
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1answer
164 views

Why do we need to amplify the signal of an electret? [closed]

I do understand from my reading that I should amplify the signal from an electret to be able to read it with an Arduino. I'd love to know the science behind that, why should we amplify the signal to ...
3
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3answers
1k views

Sound Recognition

I'm looking to recognize a particular sound using arduino uno. I need to recognize a clap sequence to trigger a relay. Having given it some thought i need it to be continuous listening mode with out ...
3
votes
3answers
696 views

Mini Voice Recorder for Arduino

I am trying to find a small voice recorder that I can use with my Arduino Micro, and I found this. It is exactly what I am looking for, but it is now a retired product. I googled ISD1932, but many ...
0
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2answers
6k views

Arduino sound equalizer

I'm trying to build a led equalizer using arduino and I want to light up with the frequencies. And I need a little help on how I should do it cause Im a beginner. Should I use pulsein() or analogin ...
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0answers
520 views

Arduino FFT library - Open Music Labs installation help

I downloaded the zip file of the FFT library from the below link http://wiki.openmusiclabs.com/wiki/ArduinoFFT and it now as I implement the example codes, it gives out a message which says "Error ...