Comments on: Sound in Flash 10 (beta). Generating Waveforms, Timbre and Pitch. http://www.hulstkamp.com/2008/09/12/sound-in-flash-10-beta-generating-waveforms-timbre-and-pitch/175 andy hulstkamp blog about rich internet applications, flex, flash, java, webapps, web, code, experiments Wed, 08 Sep 2010 12:08:18 +0000 http://wordpress.org/?v=2.6.1 By: Deadlygeek » Blog Archive » Simple Audio Tone Generator http://www.hulstkamp.com/2008/09/12/sound-in-flash-10-beta-generating-waveforms-timbre-and-pitch/175#comment-216 Deadlygeek » Blog Archive » Simple Audio Tone Generator Wed, 09 Jun 2010 15:57:47 +0000 http://www.hulstkamp.com/?p=175#comment-216 [...] been playing around with generating sounds in AS3 and Flex. Thanks to this great tutorial over at www.hulstkamp.com I’ve but together a simple flex [...] [...] 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 http://www.hulstkamp.com/2008/09/12/sound-in-flash-10-beta-generating-waveforms-timbre-and-pitch/175#comment-204 Digital Audio Programming 101-00 Thu, 03 Jun 2010 15:13:26 +0000 http://www.hulstkamp.com/?p=175#comment-204 [...] Great Tutorials On Dynamic Audio w/ Flash [...] [...] Great Tutorials On Dynamic Audio w/ Flash [...]

]]> By: Andy Hulstkamp http://www.hulstkamp.com/2008/09/12/sound-in-flash-10-beta-generating-waveforms-timbre-and-pitch/175#comment-151 Andy Hulstkamp Mon, 01 Feb 2010 23:30:55 +0000 http://www.hulstkamp.com/?p=175#comment-151 Aldo, For the notes you could use <a href="http://www.hulstkamp.com/2008/09/15/rmp/40" rel="nofollow">this</a> 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). 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 http://www.hulstkamp.com/2008/09/12/sound-in-flash-10-beta-generating-waveforms-timbre-and-pitch/175#comment-145 aldo Thu, 21 Jan 2010 16:14:22 +0000 http://www.hulstkamp.com/?p=175#comment-145 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 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 http://www.hulstkamp.com/2008/09/12/sound-in-flash-10-beta-generating-waveforms-timbre-and-pitch/175#comment-143 Jimmy Thu, 07 Jan 2010 01:51:10 +0000 http://www.hulstkamp.com/?p=175#comment-143 Awesome, just simply awesome. Great coverage on the math behind it. Awesome, just simply awesome. Great coverage on the math behind it.

]]> By: Andy Hulstkamp http://www.hulstkamp.com/2008/09/12/sound-in-flash-10-beta-generating-waveforms-timbre-and-pitch/175#comment-136 Andy Hulstkamp Mon, 16 Nov 2009 19:36:35 +0000 http://www.hulstkamp.com/?p=175#comment-136 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 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 http://www.hulstkamp.com/2008/09/12/sound-in-flash-10-beta-generating-waveforms-timbre-and-pitch/175#comment-135 luke Mon, 16 Nov 2009 15:49:19 +0000 http://www.hulstkamp.com/?p=175#comment-135 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. 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 http://www.hulstkamp.com/2008/09/12/sound-in-flash-10-beta-generating-waveforms-timbre-and-pitch/175#comment-111 Sumit Sat, 29 Aug 2009 07:06:37 +0000 http://www.hulstkamp.com/?p=175#comment-111 Thanks man for the noise function. I really needed it :) Thanks man for the noise function. I really needed it :)

]]> By: Yozo http://www.hulstkamp.com/2008/09/12/sound-in-flash-10-beta-generating-waveforms-timbre-and-pitch/175#comment-108 Yozo Thu, 20 Aug 2009 08:55:51 +0000 http://www.hulstkamp.com/?p=175#comment-108 its not that hard to use it in Flash, just tell Flash the WaveformTester is your DocumentClass its not that hard to use it in Flash, just tell Flash the WaveformTester is your DocumentClass

]]> By: RMC » Blog Archive » Flash Builder 4 / Flex Builder 4: Feature #6 : New Flash Player 10 Features http://www.hulstkamp.com/2008/09/12/sound-in-flash-10-beta-generating-waveforms-timbre-and-pitch/175#comment-105 RMC » Blog Archive » Flash Builder 4 / Flex Builder 4: Feature #6 : New Flash Player 10 Features Mon, 17 Aug 2009 23:26:05 +0000 http://www.hulstkamp.com/?p=175#comment-105 [...] AH: Sound in Flash 10 (beta). Generating Waveforms, Timbre and Pitch. [...] [...] AH: Sound in Flash 10 (beta). Generating Waveforms, Timbre and Pitch. [...]

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