Close
0%
0%

Audio Codec - Output Sine wave

A codec is a device or program that compresses data for transmission and decompresses the received data.

daphneDaphne
Following
Liked Like project

Just one more thing

To make the experience fit your profile, pick a username and tell us what interests you.

Pick an awesome username
hackaday.io/
Your profile's URL: hackaday.io/username. Max 25 alphanumeric characters.
Pick a few interests
Projects that share your interests
People that share your interests

We found and based on your interests.

Choose more interests.

OK, I'm done! Skip
Public Chat
Similar projects worth following
54 views
0 comments
47 followers
View Gallery
Public Chat
A hardware circuit that converts sound waves into PCM digital code and vice versa. The term may refer to only the A/D and D/A conversion, or it may include the compression technique for further reducing the signal (definition #1 above). If the codec is specialized for human voice, it is known as a "speech codec," "voice codec" or "vocoder" (see speech codec).

Ameba RTL8722DM is a low-power dual-band WLAN and Bluetooth Low Energy SoC by Realtek. The RTL8722DM also include memory for Wi-Fi protocol functions and application making it simple for anyone to develop various kind of IoT applications. At the same time it has a wide range of peripheral interfaces. With all these interfaces, it can connect to most of the electronics components like LEDs, temperature and humidity sensors, and so on.

More Resources:

If you need additional technical documents or the source code for this project. Please visit the official websites and join the Facebook group and forum.

  • 1 × RTL8722DM_MINI Microcontroller

  • 1
    Setup

    As RTL8722DM MINI have a built in microphone on the board, there is no need for any external microphone.

    Open the example, “Files” -> “Examples” -> “AmebaAudioCodec” -> “OutputSineWave”.

  • 2
    Final Result

    Upload the code and press the reset button on Ameba once the upload is finished.
    Connect a pair of wired headphones to the 3.5mm audio jack and you should hear the generate single sinusoidal tone.

View all instructions

Enjoy this project?

Share

Discussions

Similar Projects

This example shows how to use the FFT class to calculate the fast Fourier transform of the audio signal recorded by the microphone.
Project Owner Contributor

Audio Codec - Input FTT

daphneDaphne

nRF52832 ECG fitness tracker hacked into EEG glasses using Arduino code + detect concentration/relaxation with neural network web app
Project Owner Contributor

Hacking a $35 ECG nRF52 Fitness Tracker into EEG

curt-whiteCurt White

TensorFlow Lite is an open-source deep learning framework for on-device interference.
Project Owner Contributor

TensorFlow Lite - MicroSpeech

daphneDaphne

UART is a computer hardware device for asynchronous serial communication in which the data format and transmission speeds are configurable.
Project Owner Contributor

Retrieve GPS Position

daphneDaphne

Does this project spark your interest?

Become a member to follow this project and never miss any updates

By using our website and services, you expressly agree to the placement of our performance, functionality, and advertising cookies. Learn More

Yes, delete it Cancel

Report project as inappropriate

You are about to report the project "Audio Codec - Output Sine wave", please tell us the reason.

Send message

Your application has been submitted.

Remove Member

Are you sure you want to remove yourself as a member for this project?

Project owner will be notified upon removal.