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Using a Speaker for Audio Output | Mbed
https://os.mbed.com/users/4180_1/notebook/using-a-speaker-for-audio-output/
Speaker driver circuit used for mbed audio demos Using PWM hardware to generate a simple audio tone The simplest way to generate an audio signal to play on the speaker is to use a hardware PWM output. Set the PWM period to 1/frequency of the desired sound. The PWM duty cycle is set to 0.5.
Audio effects on mbed platform - Embedds
https://embedds.com/audio-effects-on-mbed-platform/
Mbed platform is based on LPC1768 microcontroller which has a great power to perform most signal processing in audio level. Current effect generator is fairly simple as it uses a standard electret microphone that is connected through several stages of OP amps operating as buffer, amplifier and low pass filter (10-15kHz).
Using a Microphone for Audio Input | Mbed
https://os.mbed.com/users/4180_1/notebook/using-a-microphone-for-audio-input/
On mbed, a microphone with an amplifier with a bit higher output would provide more accuracy on the A/D and improve the signal to noise ratio, but this device is lower cost and more typical of the microphones found in new mobile devices. For the best quality audio, an external amplifier IC with a gain of around 50 is likely needed.
Using Flash to play Audio Clips - Mbed
https://os.mbed.com/users/4180_1/notebook/using-flash-to-play-audio-clips/
The easiest way to set the audio sample period is to use an mbed Ticker (timer interrupt). Pin assignments in code examples for the audio output (speaker) and LED1 are for the mbed LPC1768. They will need to be changed for other mbed boards. Here is a code example for a short audio clip of the famous Cylon saying "By Your Command": 1 2 3 4 5 6 7 8
GitHub - janjongboom/b-l475e-iot01a-audio-mbed: Mbed …
https://github.com/janjongboom/b-l475e-iot01a-audio-mbed
Copy the full file, and store it in raw-audio.txt in the b-l475e-iot01a-audio-mbed folder. Open a terminal or command prompt and navigate to the b-l475e-iot01a-audio-mbed folder. Turn the raw audio into a binary file via (requires Node.js): cat raw-audio.txt | …
Audio effects LPC1768 - Question | Mbed
https://os.mbed.com/questions/5631/Audio-effects-LPC1768/
Audio effects LPC1768. I am very new to mbed and c++ programming. I have been given the following task which I require some help with, if this is in the wrong area or has already been answered please point me in the right direction. Read potentiometer on analogue in 1. Read switch on digital in 1.
: The Embed Audio element - HTML: HyperText Markup ...
https://developer.mozilla.org/en-US/docs/Web/HTML/Element/audio
The <audio> HTML element is used to embed sound content in documents. It may contain one or more audio sources, represented using the src attribute or the <source> element: the browser will choose the most suitable one. It can also be the destination …
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