Author Archives: Nigel Redmon

Oversampling

Posted on October 19, 1996 by Nigel Redmon

In this discussion, “oversampling” means oversampling on output—at the digital to analog conversion stage. There is also a technique for oversampling at the input (analog to digital) stage, but it is not nearly as interesting, and in fact is unrelated … Continue reading →

Posted in Aliasing, Digital Audio, Sample Rate Conversion | 4 Comments

Digital audio: theory and reality

Posted on October 19, 1996 by Nigel Redmon

The promise of perfect audio—the Nyquist Theorem Most people who’ve look at digital audio before know about the Nyquist theorem—if you sample an analog signal at a rate of at least twice its highest frequency component, you can convert it … Continue reading →

Posted in Aliasing, Digital Audio, Dither, Jitter, Phase | 12 Comments

MIDI overview

Posted on August 14, 1996 by Nigel Redmon

This chapter presents a brief overview of the Musical Instrument Digital Interface—MIDI. You should also have a more detailed reference on the subject, especially if you need to understand advanced features not covered here, such as MIDI Time Code and … Continue reading →

Posted in MIDI | Leave a comment

A Java MIDI reference

Posted on July 6, 1996 by Nigel Redmon

If you had a Java-equiped browser, you’d see as applet here that looks like this. Choose the MIDI message type from the message pop-up menu to display the corresponding MIDI message bytes. For channel messages, you can choose the MIDI … Continue reading →

Posted in MIDI, Widgets | Leave a comment