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Audio->PWM-Converter | Microchip
https://www.microchip.com/forums/m826097.aspx
Audio->PWM-Converter Hi, im looking for informations to create a PWM signal with the comparator-unit of the dspic30f for an Class-D audio amplifier. A possability to create an triangular signal and compare it with another digital signal would be great, so an external ADC for the audio signal can be used.
Analog Audio signal to PWM converter - Audio forum - Audio ...
https://e2e.ti.com/support/audio-group/audio/f/audio-forum/454095/analog-audio-signal-to-pwm-converter
Hi Kiran, I would recommend you to tale a look to the TAS5611A, this device has analog inputs and offers the same power performance of the TAS5622A. If you want to use TAS5622A, you may need to add an ADC to convert the analog input to digital audio, then a PWM modulator that will convert digital audio into PWM output for the amplifier.
analog audio in to PWM audio out - Audio - Arduino Forum
https://forum.arduino.cc/t/analog-audio-in-to-pwm-audio-out/139411
it takes in audio on ADC0 and uses a dual pwm to create 16b audio out. you can process the audio in-between and make a low-fi effects pedal. it can be used for just analog out as well, and is much higher quality than using analogwrite (although more complicated too). there is a much more in-depth tutorial on pwm in general up here:
Converting PCM WAV audio to a sequence of PWM data to play ...
https://forum.arduino.cc/t/converting-pcm-wav-audio-to-a-sequence-of-pwm-data-to-play-on-a-piezo-speaker/342053
But, nobody stores audio in PWM in files… There are a couple of formats similar to PWM, and class-D amplifiers convert analog to high frequency PWM. (Class-D amplifiers don’t have any software or memory.) And of course, you have lossless and lossy audio compression.
How to convert audio to PWM without using arduino or any ...
https://www.reddit.com/r/AskElectronics/comments/4pjwy6/how_to_convert_audio_to_pwm_without_using_arduino/
I've been wondering how to convert audio to PWM, without using arduino or ucontrollers. I want LED strips to light up with rythm of the music. I know how to do it using arduino- I'd need to "boost" signal by 2.5V, to get it above 0V and then put it in arduino as an analog signal.
PWM DAC | Open Music Labs
http://www.openmusiclabs.com/learning/digital/pwm-dac.1.html
We will show how to use the PWM feature of the Arduino (ATmega328 microcontroller) to generate high quality audio, with a minimum of components. We will then go into all the gory details of how to optimize the settings to make the best DAC (Digital to Analog Converter) for your application.
How and Why to Convert Analog Signals to PWM Signals
https://resources.pcb.cadence.com/blog/2021-how-and-why-to-convert-analog-signals-to-pwm-signals
A low-cost method to convert analog to PWM signals is to use a specialized IC, like the LT6992. It is a PWM generator where you can control the duty cycle by feeding in an analog signal of 0-1V. While using the LT6992 IC is the simplest method, it isn’t suitable for complex algorithms or the non-linear relationship of analog and a PWM output ...
System Design Considerations for True Digital Audio …
https://www.ti.com/lit/an/slaa117a/slaa117a.pdf
A true digital audio amplifier (TDAA) chip set consists of a TAS50xx PCM-PWM modulator and a number of TAS51xx PWM amplifiers as shown in Figure 1. At the center of this patented technology is the conversion of pulse-code modulated …
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