Comments on: First steps with flash 10 audio programming http://www.kelvinluck.com/2008/11/first-steps-with-flash-10-audio-programming/ a stroke of luck Thu, 02 Feb 2012 07:32:35 +0000 hourly 1 http://wordpress.org/?v= By: Kelvin Luck http://www.kelvinluck.com/2008/11/first-steps-with-flash-10-audio-programming/comment-page-1/#comment-98188 Kelvin Luck Fri, 20 Jan 2012 09:12:25 +0000 http://www.kelvinluck.com/?p=475#comment-98188 Hi Shai, The effect you are looking for is called "time stretching" or "pitch shifting" and is considerably more complex to code. I think some people have come up with implementations in as3 though - hopefully you should be able to find them now you know the name of it! Cheers, Kelvin :) Hi Shai,

The effect you are looking for is called "time stretching" or "pitch shifting" and is considerably more complex to code. I think some people have come up with implementations in as3 though - hopefully you should be able to find them now you know the name of it!

Cheers,

Kelvin :)

]]> By: Shai http://www.kelvinluck.com/2008/11/first-steps-with-flash-10-audio-programming/comment-page-1/#comment-98094 Shai Thu, 19 Jan 2012 19:15:01 +0000 http://www.kelvinluck.com/?p=475#comment-98094 Hi, I used your code to play with the sound speed, but is there a way to change the duration without changing the pitch, meaning without changing it to a very high sound when the sound plays fast, and a very low sound when the sound plays slow? Thanks, Shai Hi,

I used your code to play with the sound speed, but is there a way to change the duration without changing the pitch, meaning without changing it to a very high sound when the sound plays fast, and a very low sound when the sound plays slow?

Thanks,
Shai

]]> By: Kelvin Luck http://www.kelvinluck.com/2008/11/first-steps-with-flash-10-audio-programming/comment-page-1/#comment-74881 Kelvin Luck Tue, 30 Aug 2011 08:58:51 +0000 http://www.kelvinluck.com/?p=475#comment-74881 Hi Arvind, I can't remember what version of the Flex SDK I used but it would have been whatever was current when the article was written (November 2008). Possibly 3.5? It should also work with newer versions of the Flex SDK though - make sure you are targeting version 10 of the flash player though... Hope it helps! Hi Arvind,

I can't remember what version of the Flex SDK I used but it would have been whatever was current when the article was written (November 2008). Possibly 3.5? It should also work with newer versions of the Flex SDK though - make sure you are targeting version 10 of the flash player though...

Hope it helps!

]]> By: Arvind http://www.kelvinluck.com/2008/11/first-steps-with-flash-10-audio-programming/comment-page-1/#comment-74786 Arvind Mon, 29 Aug 2011 09:22:05 +0000 http://www.kelvinluck.com/?p=475#comment-74786 Which flex sdk should I use get this running? Which flex sdk should I use get this running?

]]> By: Kelvin Luck http://www.kelvinluck.com/2008/11/first-steps-with-flash-10-audio-programming/comment-page-1/#comment-58171 Kelvin Luck Sun, 06 Feb 2011 21:45:35 +0000 http://www.kelvinluck.com/?p=475#comment-58171 Hey guys: @Alex - looking very interesting! I'll try to find the time to check it out in more detail but it looks like great work :) @Krzysztof - Playing wav files from the server might not be recommended (because of the large download size). But to play a wav in actionscript check out the link I posted above to richapps.de... Cheers, Kelvin :) Hey guys:

@Alex - looking very interesting! I'll try to find the time to check it out in more detail but it looks like great work :)

@Krzysztof - Playing wav files from the server might not be recommended (because of the large download size). But to play a wav in actionscript check out the link I posted above to richapps.de...

Cheers,

Kelvin :)

]]> By: Krzysztof http://www.kelvinluck.com/2008/11/first-steps-with-flash-10-audio-programming/comment-page-1/#comment-57587 Krzysztof Mon, 31 Jan 2011 06:00:15 +0000 http://www.kelvinluck.com/?p=475#comment-57587 Playing WAV (with GSM6.1) from web. I tried to search for a method to play wave files from web GUI for 3 days, and only useful solution is given here. But will someone tell me how to play WAV files from server on GUI with speech control? I'm not a flash-coder i must admit. Playing WAV (with GSM6.1) from web.
I tried to search for a method to play wave files from web GUI for 3 days, and only useful solution is given here. But will someone tell me how to play WAV files from server on GUI with speech control?
I'm not a flash-coder i must admit.

]]> By: Alex Nino http://www.kelvinluck.com/2008/11/first-steps-with-flash-10-audio-programming/comment-page-1/#comment-57262 Alex Nino Thu, 27 Jan 2011 15:14:18 +0000 http://www.kelvinluck.com/?p=475#comment-57262 Hi Kelvin, how are you doing? It is very interesting how things are being improved using same resources. I've been playing around with something quite similar, basically combining audio pitch, interpolation and audio stretch principals all in one, take a look http://yoambulante.com/en/labs/pagodinho.php at the end of the day performance is always the main issue, that swf takes not more than 10% of my CPU, let me know what you think, cheers! Hi Kelvin, how are you doing? It is very interesting how things are being improved using same resources. I've been playing around with something quite similar, basically combining audio pitch, interpolation and audio stretch principals all in one, take a look http://yoambulante.com/en/labs/pagodinho.php at the end of the day performance is always the main issue, that swf takes not more than 10% of my CPU, let me know what you think, cheers!

]]> By: Kelvin Luck http://www.kelvinluck.com/2008/11/first-steps-with-flash-10-audio-programming/comment-page-1/#comment-51339 Kelvin Luck Mon, 29 Nov 2010 10:08:43 +0000 http://www.kelvinluck.com/?p=475#comment-51339 Hi, @Thor - Sorry for the slow response but this page may help: http://richapps.de/?p=97 If I remember correctly the "dynamically create an SWF with wav data embedded in it" approach was what underpinned the dynamic audio engines that existed pre Flash 10. @Alex - That's great, thanks for the info. You can definitely hear the improvement this makes on your examples. @Tushar - I bookmarked this Silverlight audio engine a while ago - maybe it can help you: http://silversynth.codeplex.com/ Feel free to contact me directly (you can use the contact page on the website) if you are interested in getting some help to put something together, Thanks, Kelvin :) Hi,

@Thor - Sorry for the slow response but this page may help:
http://richapps.de/?p=97

If I remember correctly the "dynamically create an SWF with wav data embedded in it" approach was what underpinned the dynamic audio engines that existed pre Flash 10.

@Alex - That's great, thanks for the info. You can definitely hear the improvement this makes on your examples.

@Tushar - I bookmarked this Silverlight audio engine a while ago - maybe it can help you:
http://silversynth.codeplex.com/

Feel free to contact me directly (you can use the contact page on the website) if you are interested in getting some help to put something together,

Thanks,

Kelvin :)

]]> By: tushar http://www.kelvinluck.com/2008/11/first-steps-with-flash-10-audio-programming/comment-page-1/#comment-51204 tushar Sun, 28 Nov 2010 05:59:25 +0000 http://www.kelvinluck.com/?p=475#comment-51204 Is this doable in silverlight? I'll be glad to pay someone to do it for us. Is this doable in silverlight? I'll be glad to pay someone to do it for us.

]]> By: Alex Nino http://www.kelvinluck.com/2008/11/first-steps-with-flash-10-audio-programming/comment-page-1/#comment-46573 Alex Nino Fri, 08 Oct 2010 13:34:55 +0000 http://www.kelvinluck.com/?p=475#comment-46573 Hi, this is so cool! thanks for sharing, nice approach. it is just missing one single thing to be perfect, when you modify the sound wave length you must reconstruct the missing samples data. I did a quite interesting research about Interpolation and different methods and I found that the algorithm hermite 4 points (128 bits) is the best for treating this audio pitch (programs like Cubase, proTools, reason, etc) use it. Here is the result of my research http://www.yoambulante.com/en/labs/interpolation.php I hope it could be useful to someone, cheers! Hi, this is so cool! thanks for sharing, nice approach. it is just missing one single thing to be perfect, when you modify the sound wave length you must reconstruct the missing samples data. I did a quite interesting research about Interpolation and different methods and I found that the algorithm hermite 4 points (128 bits) is the best for treating this audio pitch (programs like Cubase, proTools, reason, etc) use it. Here is the result of my research http://www.yoambulante.com/en/labs/interpolation.php I hope it could be useful to someone, cheers!

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