Comments on: Sound in Flash 10 (beta). Generating Waveforms, Timbre and Pitch.

By: Objective-C play sound - Programmers Goodies

Objective-C play sound - Programmers Goodies — Sat, 12 Nov 2011 18:50:42 +0000

[...] Here is a tutorial on generating waveforms of several types. The article goes into some details on the many aspects to a note you need to consider, including the frequency, volume, waveform shape, sampling rate, etc. The article comes with Flash source code, I think you should have no problem taking the concepts and adapting them to iOS. [...]

By: Quora

Quora — Thu, 14 Apr 2011 22:20:37 +0000

Has Adobe Flash become irrelevant?…

I think the question is incomplete. Has Flash become irrelevant where? If I look at the more traditional usage of Flash as a tool to create entire websites, then I certainly think that time is pretty much over. There may be some stubborn perfume manufa…

By: Deadlygeek » Blog Archive » Simple Audio Tone Generator

Deadlygeek » Blog Archive » Simple Audio Tone Generator — Wed, 09 Jun 2010 15:57:47 +0000

[...] been playing around with generating sounds in AS3 and Flex. Thanks to this great tutorial over at http://www.hulstkamp.com I’ve but together a simple flex [...]

By: Digital Audio Programming 101-00

Digital Audio Programming 101-00 — Thu, 03 Jun 2010 15:13:26 +0000

[...] Great Tutorials On Dynamic Audio w/ Flash [...]

By: Andy Hulstkamp

Andy Hulstkamp — Mon, 01 Feb 2010 23:30:55 +0000

Aldo,

For the notes you could use this function and map the midi-notes to the frequency values.

Time is relative to bpm. Basically it’s just a matter of how many cycles of the same frequency you stream into the buffer. The more cycles the longer the note.

Velocity again is related to the amplitude (see amp in example above). You’ll need to map midi velocity (0..127) to (0.0..1.0).

By: aldo

aldo — Thu, 21 Jan 2010 16:14:22 +0000

Hi Andy,
Thanks for your great article. Would you like to you give me some explanation about simulating midi file in flash? I have used midicsv(http://www.fourmilab.ch) to extract midi into time, note and velocity but i dont know how to play it in flash.

Thanks

By: Jimmy

Jimmy — Thu, 07 Jan 2010 01:51:10 +0000

Awesome, just simply awesome. Great coverage on the math behind it.

By: Andy Hulstkamp

Andy Hulstkamp — Mon, 16 Nov 2009 19:36:35 +0000

Luke

This post is about how to generate sounds dynamically and not how to process prerecorded audio.

Processing audio is a huge field and depending on what you want to do not easy to achieve. You might want to start by changing Kelvin Lucks code a bit. Look at his

onSampleData()-Event handler

and manipulate the data that is fed to the channels a little. If you add some small random values you’re piano sound will get some noise. If you want to do more advanced things google for ‘audio signal processing’ or the like.

hth

By: luke

luke — Mon, 16 Nov 2009 15:49:19 +0000

hey there, i’d like to combine these ‘filters’ with a standard WAV or AIFF file in the Flash library, so a recorded piano note could be modulated in various ways, for example. Is this possible? I’ve tried combining your script with Kelvin Lucks MP3 audio extract but aren’t having much luck. Thanks very much.

By: Sumit

Sumit — Sat, 29 Aug 2009 07:06:37 +0000

Thanks man for the noise function. I really needed it