Questions tagged [audio]
Using an Arduino to play noise, sounds, or music. Also for questions about audio input.
171 questions
14
votes
3
answers
34k
views
Want to create bluetooth audio control (volume up/down, play, pause, etc.) for smartphone
I want to create a bluetooth remote audio control to control smartphone audio, essentially identical in function to this type of equipment:
https://www.amazon.com/FAVOLCANO-Bluetooth-Button-...
- 243
8
votes
2
answers
14k
views
Audio Frequency White Noise generation using Arduino Mini Pro
For DIY, how to program Arduino Mini Pro to act as an Audio Frequency White Noise generator?
Presumably,
a) using one Digital Output pin
b) feed to a simple passive RC low pass filter to reduce ...
- 904
6
votes
2
answers
16k
views
Connecting an Arduino to a telephone line?
I would like to connect my Arduino Uno to a telephone line in order to answer a call, record a sequence of DTMF tones, generate a DTMF tone in response, and hang up.
The telephone line uses a ...
- 163
6
votes
1
answer
15k
views
Streaming audio from PC to Arduino over WiFi
Say I wanted to, purely hypothetically, set up a pirate radio station by connecting an Arduino to a WiFi network away from home, streaming music to the Arduino, decoding it, and broadcasting it with ...
- 163
5
votes
6
answers
16k
views
DFPlayer Noise: Researched, Tried, and Bep Bep Bep Bep Bep
Spent an entire day researching and attempting to fix the DFPlayer noise problem. The amp works as expected, so it is not the problem. I have made a video to help you better understand the sound ...
5
votes
4
answers
7k
views
Listen for specific frequency
I’m trying to build a custom baby monitor for my wife who is deaf. It needs to detect loud noises and listen for a specific series of tones from a feeding pump our daughter uses. It will then send a ...
5
votes
2
answers
173
views
Practicality of recording speech
Is it practical to record speech with the Leonardo?
I want to record speech via a MEMS microphone and stream it over a serial connection to a Raspberry Pi for speech-to-text processing.
This article ...
- 1,668
4
votes
4
answers
14k
views
Transistor amplifier to drive speaker using Arduino PWM [closed]
I have been working on a project lately which uses Arduino to play a wav file from SD card. I am using TMRPCM library which made the job very easy. But the problem is that the output sound in the ...
- 191
4
votes
1
answer
1k
views
Is it possible to sample sound with arduino?
I have the arduino duemilanove with atMega328.
The frequency is 16Mhz.
I want to sample and record from the audio jack.
I searched and i found if i want to record "everything - so to speak", i have ...
- 1,415
4
votes
1
answer
883
views
Is it possible to start audio playback when headphones gets plugged in?
I want to have 6 audio jacks IN waiting for connection to start some WAV/OGG playback as soon as a headphone plugs in. In fact, I'd like to have simultaneous playback in 6 lines.
I've seen in the ...
- 43
4
votes
2
answers
3k
views
Good quality sound using a microcontroller
I am a hobbyist. Doing some experiments with sound quality. I'll pin point my problem and requirements.
Problem statement :I want to play audio files ( recorded in human voice, not music files, just ...
- 59
4
votes
3
answers
799
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 ...
- 45
4
votes
2
answers
18k
views
How to connect Arduino to headphone jack?
I would like to connect a headphone jack to my Arduino and make it as an output. I mean I would simply send some simple beeps.
I know that there is a breadboard friendly headphone jack, but I don't ...
- 145
4
votes
1
answer
55
views
Issues using mini microphone module off AliExpress
I have been trying to get a mini microphone module with an inbuilt microphone module I got from AliExpress to my Arduino to confirm if it is working. It was a four pin microphone with pins labeled V, ...
3
votes
2
answers
5k
views
What is the best way to get more RAM for a sound buffer?
The problem:
How to extend the memory for a sound buffer (intensively used) if:
SD card library supports only one file open at a time (and I have one open already)
EEPROM chips are able to stand ...
- 317
3
votes
1
answer
3k
views
Using TMRpcm library, the audio does not play
I'm using the https://github.com/TMRh20/TMRpcm/wiki library to play wav files from an SD card to a speaker I have attached to my Arduino.
I have run separate tests/programs that ensures:
my speaker ...
- 31
3
votes
3
answers
3k
views
How to get rid of low quality sound out from DFPlayer plus amplifier?
I use my Seeeduino V4, DFPlayer mini, and this speaker module from AliExpress to create an automatic doorbell. The problem is that it seems that this speaker module's Yurobot amplifier is not ...
- 153
3
votes
1
answer
435
views
PT2257 only gives me heavy buzzing sound
I have this project where I control a bluetooth audio module with an arduino. In this case, I have used an arduino nano. But then, I have been meaning to add volume control to the project so I use a ...
- 65
3
votes
1
answer
803
views
Noise when running Arduino close to analogue audio circuit
TL;DR: My Arduino is injecting a lot of noise into an analogue audio circuit, even when not physically connected.
I'm experimenting with using an Arduino as a low-frequency oscillator in audio ...
- 133
3
votes
1
answer
359
views
Arduino audio output circuit
I am looking to build my own arduino-based board that, when triggered, will play a file (line out, not amped to a speaker). Most of the audio shields I see are more complicated than I need, so what I'...
- 335
3
votes
1
answer
91
views
Error trying to play audio through an ESP8266 using the 'ESP8266Audio' library
I am attempting to use an esp8266 to play an .mp3 audio file through a connected speaker using the 'ESP8266Audio' library.
I have tested that the hardware setup is correct (e.g. I have been able to ...
3
votes
0
answers
120
views
Keypad - Speaker - Interference
I am trying to build a system, that plays specific audios (.wav files) from a SD-Card, according to the key combination that has been pressed.
I am using:
4x4 Membrane
4 Ohm Speaker
MicroSD Card ...
- 31
2
votes
3
answers
510
views
What is the phase of tone?
Is it garanteed (with some precision) that the phase of a PWM-signal generated by tone is the same on each pin? Can it be altered (by internal means of Arduino) so that it's different on different ...
- 153
2
votes
2
answers
263
views
Tone() generates a high pitched sound when button is released
I have a simple circuit that makes use of the tone() function to produce some sounds.
I also have a button, hooked with an interrupt function, that whenever is pressed, a variable changes.
Sometimes, ...
- 1,415
2
votes
2
answers
3k
views
DAC to play audio samples
I have a buffer which contains 16000 PCM samples of 8Khz 8-bit mono. I am trying to play it using 12 bit MCP4725 DAC. I have tried using micros() to control the write interval for the DAC. Here's my ...
- 141
2
votes
1
answer
2k
views
Audio sampling and serial communication
tl;dr: The sample rate of my code seems to be lower than what I expect it to be. How can I fix this?
Director's cut:
I am trying to sample audio data and send it via serial. The setup consists of a ...
- 23
2
votes
2
answers
3k
views
How to run background music while the code for a game is executed
I have some background music. If I put it at the top of the void loop(), it'll first play the music and then execute the game code afterwards.
How do I have the code run while the background music ...
- 21
2
votes
1
answer
3k
views
Arduino Uno synthesizer - Line Level (audio) output to mixer/amplifier
Is using PWM tones from Arduino amplified by a HiFi amplifier safe? Can I damage the amplifier or speakers because the PWM signal is not a "real" audio signal? Taken in consideration that I ...
- 123
2
votes
1
answer
610
views
High frequency audio sampling and storage
I want to use an arduino duemilanove atmega168 for audio signal processing. I can sample the signal at around 38.5kHz using this code. I want to send the sampled data over the serial to a computer for ...
- 21
2
votes
3
answers
1k
views
How do I handle multiple interrupts and outputs simultaneously?
I'd like to make a musical harp that utilizes break beam sensors.
I'd really appreciate guidance on these two questions:
How should I go about listening for multiple beam breaks at the same time? I'...
- 23
2
votes
2
answers
902
views
Arduino audio frequency reader
I have a simple project for my arduino : light some leds when i send a certain frequency from my smartphone through the jack output . For example ,
I play a simple audio file generated with a ...
- 23
2
votes
1
answer
129
views
Arduino Audio Shield Problems
I recently bought a Velleman KA02 Arduino Audio Shield (http://www.velleman.co.uk/contents/en-uk/p579_ka02.html), which uses an ISD1760PY audio chip and soldered it together. The first time I fired it ...
- 43
2
votes
2
answers
12k
views
How can I play audio from an SD card?
What is the best / simplest way to play audio files from an SD card?
I'm currently working on a sound board, where each button plays a different sound. But I have yet to find the right combination of ...
- 211
2
votes
1
answer
354
views
Arduino to Home Speakers
I know little about electronics in general. I wanted to connect Arduino, and play a tone using tone() through my home speakers.
I've used a 1/8'' audio jack and connect ground to ground and left/...
- 177
2
votes
1
answer
211
views
Using PWM pins on the UNO to generate Stereo Sound
I am trying to generate stereo sound using an Arduino UNO. Instead of using a separate DAC chip (as shown here), can I use the PWM pins on the UNO along with a low-pass filter?
Also, would I need any ...
2
votes
1
answer
320
views
Why won't this code play a converted wav2c header file through an Arduino to my speaker?
I used this converter wav2c to convert a .wav file to a C that I can put in a header file. I was able to put converted audio into the h file but the program where I reference it does not seem to be ...
- 41
2
votes
1
answer
474
views
How to detect the pulse width from microphone as Input?
I'm working on a project that detects the pulse width of an audio signal, which uses a microphone as an input. The user gives 2 different types of sounds one last less 0.3 seconds and other lasting ...
- 21
2
votes
2
answers
445
views
Arduino MP3 Player
I want to make a MP3 player with arduino. My problem is what board should I use? There is the SparkFun MP3 Player Shield, SparkFun Audio-Sound Breakout - WTV020SD. Then I want to attach a 2.8 TFT ...
- 21
2
votes
1
answer
86
views
Converting live vocals to discrete signals
I would like to augment a live music performance by displaying an specific LED for any given musical note.
For vocals:
Rather than attempt to process the audio using the Arduino board, I'd like to ...
- 121
2
votes
1
answer
331
views
How can I send data to many IC's without using tons of shift registers?
I'm building an audio circuit that will play VGM files (Video Game Music).
I have it working with two different "vintage" IC's such as the SN76489 and the AY-3-8912.
Currently, my design is using an ...
- 247
2
votes
0
answers
163
views
Playing stereo sound using AudioOutI2S and Splitting channels correctly
I have an Arduino MKR Zero with an UDA1334 I2S module, alongside 2 Speakers and I am trying to play Stereo sound. So far everything seems to work well, connections are also properly done, and i can ...
- 21
2
votes
0
answers
53
views
Issues with Polytone Library?
I'm building a device that uses two ultrasonic sensors to detect objects and provide audio feedback in the form of beeps that get faster the closer an object is. I have two speakers, one for each ...
- 21
2
votes
1
answer
54
views
Communicate from Arudino to computer over 3.5mm port
I'm wondering if it would be somehow possibly to have easy communication with a computer for Arduinos that don't have USB like the pro mini. That would make an easy way of having two-way communication ...
- 23
2
votes
0
answers
3k
views
Esp32 sending a wav file to API via POST
I'm trying to send a .wav file to an API with an ESP32 using a HTTP Post request with a multipart/Form-data content type.
I can already send the API Key as it is a plain key and get a return from the ...
- 21
2
votes
0
answers
946
views
Connecting Audio Jack to Arduino
So I started working on a project of mine that is mostly software based which I have no problems with, but it includes electronics too. Where I am still learning a lot. Anyways, I have been trying to ...
- 21
2
votes
0
answers
1k
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 ...
- 155
2
votes
2
answers
250
views
Elechouse MP3 shield play random song
Using this code to try and play a random song when someone walks by my distance sensor I get an error, the same song (track 0001) plays every time. Any advice?
#include <SoftwareSerial.h>
...
- 21
2
votes
1
answer
742
views
Using a keypad to play an audio file on Arduino Mega and Adafruit VS1053?
I am trying to use a keypad to trigger an audio file using an Arduino Mega and Adafruit VS1053 Music Maker. I have gotten the music files to play independently, and when the correct number is entered ...
- 31
2
votes
0
answers
555
views
Arduino Audio Recorder - Speed Correct but Wrong Pitch
I'm working on an audio recorder project on an Adafruit Adalogger with SAMD21 ARM-based processor using the Arduino IDE. The desired sampling frequency is 10 kHz, 12-bit resolution with an analog ...
vq35dett01
2
votes
0
answers
157
views
Using VMA-02 / KA-02 Sound Shield to get line-in input on arduino
I bought this VMA-02 audio shield: http://www.velleman.co.uk/contents/en-uk/p623_vma02.html
I want it to get the data from line-in to line-out but with reading it in my arduino scetch first (e.g. ...
- 121