プッシュボタン電話機のダイヤル音ですが、正式にはDTMF（Dual Tone Multi Frequency）と言います。その中身は2つの正弦波の組み合わせです。ならばシンセで合成簡単なはず。 Wikiを見るとその周波数が載っていますが、鍵盤楽器で使われている平均律の周波数と ...

Add a description, image, and links to the dtmf-encoder topic page so that developers can more easily learn about it.

This project is to build a portal for easy access of the information. Involved in the first phase of the project to build a database capturing all of the case study information of the work done to ...

You can create a release to package software, along with release notes and links to binary files, for other people to use. Learn more about releases in our docs.

For a hobby that’s ostensibly all about reaching out to touch someone, ham radio can often be a lonely activity. Lots of hams build and experiment with radio gear much more than they’re actually on ...