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Atmega16 - audio on PWM output | AVR Freaks

https://www.avrfreaks.net/forum/atmega16-audio-pwm-output

I'm trying to read a .wav file from SD card, use data to control PWM output and send it to a simple speaker (8 Ohm, 0.5W connected directly to output via 150 Ohm resistor). Reading from card works OK (tested). My test wav file is a 3 second sine wave (3 different frequencies, 1 second each) recorded as 8000 Hz sample rate, 8 bits per sample.

Sound - Audio Projects Archives - ATMega32 AVR

https://atmega32-avr.com/avr-atmega-projects/sound-audio-projects/

Posted By: Atmega Expert on: May 12, 2020 In: Sound - Audio Projects No Comments Theremin are those unique instruments use to make those alien show theme songs or sound effect. You may have also heard it in Star Trek, Big Bang Theory, or even a haunted house.

PCM Sound Output for my Atmega2560 - Audio - Arduino Forum

https://forum.arduino.cc/t/pcm-sound-output-for-my-atmega2560/152343

PCM Sound Output for my Atmega2560. I recently started a project to implement a Code Excited Linear Predictive (CELP) decoder on Atmega2560, which can store approximately 3 minutes on compressed voice (4.8kbps at 8kHz sampling) on 256kbyte flash Atmega2560.

Audio Tone Generator using AVR Microcontroller

https://atmega32-avr.com/audio-tone-generator-using-avr-microcontroller/

AVR Microcontroller gives Digital values to DAC to generate sine wave output through it. DAC0808 It converts digital values given by ATMega32 into Analog and generates continuous type sine wave OP-AMP LM741 DAC0808 gives output in form of current. OP-AMP works as I to V converter and converts it in to voltage Audio Amplifier

PWMDAC - Open Music Labs Wiki

http://wiki.openmusiclabs.com/wiki/PWMDAC

Timer1 outputs its data on pins 9 and 10 on the Arduino (pin 9/10 are OC1A/B and PORTB1/2 on the ATmega328p). For all of the following, it will be assumed that pin 9 is used for Single PWM, and is the high byte for Dual PWM. Pin 10 is not used for Single PWM, and is the low byte for Dual PWM. You can also set up for Dual PWM, and output 2 different signals, one on each output.

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