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Questions tagged [audio]

Using an Arduino to play noise, sounds, or music. Also for questions about audio input.

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1 vote
3 answers
2k views

Generate a true analog signal using Arduino

I am looking for a way to create a true analog output with the arduino uno. I am constantly reading an analog input on a0 pin, all i want to do is send the same signal as output. I know arduino ...
eToll Systems's user avatar
13 votes
3 answers
32k 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-...
Howiecamp's user avatar
  • 233
8 votes
2 answers
13k 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 ...
EEd's user avatar
  • 904
5 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 ...
Nathan Osman's user avatar
4 votes
4 answers
13k 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 ...
Frank Donald's user avatar
2 votes
2 answers
887 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 ...
Sir's user avatar
  • 23
1 vote
1 answer
760 views

Using an Arduino for a Diorama Controller

Kind of new to the whole DIY electronics scene. I'm building a diorama for my son. It will include a length of track, a station, some other buildings, and scenery. It will be HO scale. The ...
EL MOJO's user avatar
  • 135
0 votes
1 answer
256 views

Audio Recording using Arduino BT module

I want to take audio signal through mic connected to Arduino and then transfer it to PC using BT module. I want to do it with BT (HC05) and Arduino Mega. I need audio packages at 44 KHz and 24-32 bits ...
Mariam's user avatar
  • 3
0 votes
1 answer
991 views

Advice on setting up a real-time audio equaliser

First time Arduino user here. We have a microphone set-up which feeds back loudly on particular frequencies and need an equalizer to (preferably automatically) detect spikes in particular frequency ...
mediocreCraig's user avatar