Comments on: Pitch MP3

By: Nick Kuh

Nick Kuh — Thu, 11 Mar 2010 12:33:10 +0000

Amazing work Andre, thanks for sharing the code. I’ve worked it into an example that records samples from the Microphone in Flash Player 10.1 (source included):

http://www.nickkuh.com/flash-flex-air/pitching-the-microphone-with-flash-player-10-1-beta/2010/03/

By: Pitching the Microphone with Flash Player 10.1 Beta

Pitching the Microphone with Flash Player 10.1 Beta — Thu, 11 Mar 2010 12:10:05 +0000

[...] to Andre Michelle’s shared work on pitching MP3s and Devon Wolfgang’s microphone code example I was able to get the above up and [...]

By: Benson

Benson — Fri, 05 Mar 2010 05:39:12 +0000

Hi, I would like to know is it possible to perform a loop back sound?

I try to use soundchannel but it won’t works

By: IdeasMX

IdeasMX — Sun, 28 Feb 2010 10:13:48 +0000

Hi, how can i save the sound of a mix of sounds, a mix of wav files loaded?

By: theDarkIn1978

theDarkIn1978 — Sat, 27 Feb 2010 01:37:17 +0000

this is absolutely brilliant!

By: Rahul

Rahul — Sun, 14 Feb 2010 04:08:57 +0000

Hi Andre
Thanks for these wonderful posts – very helpful for a noob like me. I am actually trying some very basic stuff to protect an MP3 that I stream from being recorded. One approach was to simply XOR the content frames in a MP3 with a key and XOR is back in the player actionscript. But once I use sound.extract() , XORing does not recover the original mp3. Is it because sound.extract actually uncompresses the data into raw sound? Anyway I can manipulate the mp3 as it loads.

By: Scott

Scott — Tue, 09 Feb 2010 18:25:42 +0000

@Ryan

I’m trying to make a looping sound in a game I am working on speed up as time runs out. I want the pitch to remain the same, so I was very excited by your link:

http://static.ryanberdeen.com/projects/soundtouch-as3/demo/player/stretch.swf

but when I downloaded the source and played around with it, it always sputters. By any chance could I have the source code for that example, stretch.swf. Either way, thanks and great work.

By: mit popforge wave in anderer SamplingRate einbinden - Flashforum

mit popforge wave in anderer SamplingRate einbinden - Flashforum — Sun, 07 Feb 2010 12:23:26 +0000

[...] meine, dass der Wavplayer in Popforge jede Geschwindigkeit abspielen kann. Ansonsten hilft auch dieser Code oder dieser. __________________ aM blog | hobnox | laboratory | sources | processing Adobe, [...]

By: MP3 Wave Display 2

MP3 Wave Display 2 — Sun, 17 Jan 2010 19:18:39 +0000

[...] speed and maintain acceptable sound quality. I took the code for pitching a sample from this MP3 Pitch example by Andre Michelle, which builds on Lee Brimelow’s post Adjusting audio pitch in Flash Player [...]

By: Matthew

Matthew — Tue, 05 Jan 2010 21:10:19 +0000

This is a really amazing thing you have done here, thank you…

By: Jonas

Jonas — Sun, 03 Jan 2010 16:08:22 +0000

Awesome!
Does anyone know how to play the mp3 in reverse smoothly? Right now I have changed the startposition:

_position = startTime*44.1;

and the sound position:

_position -= scaledBlockSize;

But it doesn’t play smoothly…

Thanks

By: Roland

Roland — Thu, 31 Dec 2009 15:48:15 +0000

if anybody else would like to play the sound from a certain start position you have to set the position to something like this:

_position = startTime * 44.1;

note that the startTime will be the time the mp3 should start playing in milliseconds.

hope that helps.

By: Michael

Michael — Wed, 30 Dec 2009 17:38:08 +0000

Great work! Thanks for sharing!

By: Olof

Olof — Sat, 19 Dec 2009 13:23:11 +0000

@leef you can get the percent played like this: var percentPlayed:Number = (_position/(_mp3.length*44.1));

By: Olof

Olof — Fri, 18 Dec 2009 13:01:15 +0000

Really great work!

Im not good at this soundstuff. Is there a way to use this on soundfiles with lower samplerate or any samplerate?

//Olof

By: michael

michael — Tue, 15 Dec 2009 20:47:09 +0000

This is also pretty cool, as the tempo stays constant when you change pitch: http://iq12.com/blog/2009/08/25/real-time-pitch-shifting/

By: Namake

Namake — Thu, 12 Nov 2009 15:56:35 +0000

Hi Andre,

your work is awesome!
How to pitch a loop mp3?

By: leef

leef — Tue, 29 Sep 2009 01:47:17 +0000

Maybe this will help someone else, the _position variable is the Byte position, not millisecond = \ sometimes I spent way to much time not noticing that

By: filmy online

filmy online — Sun, 13 Sep 2009 15:13:47 +0000

Hi,

Anyone know how can i put the buffer when i play dynamic sound(it’s generate from raw sound(mp3 file))

Thanks
Bechar

By: Having fun with Face Tracking and MP3 Pitch control | Jop Wielens

Having fun with Face Tracking and MP3 Pitch control | Jop Wielens — Fri, 11 Sep 2009 08:39:29 +0000

[...] this year we saw the Flash Face Tracking and 2 months ago Andre Michelle showed how easy it was to control the pitch of a sound in Flash 10. I love all that [...]