I just forked over some cash for your AS3 XML MP3 Player PRO, don’t spend it all at once The clean code has been very helpfull for me, thanks man.

I was looking through the code and opened the spectrum class. I cannot quite wrap my head around the SoundMixer.computeSpectrum(mSpectrum) / mSpectrum.readFloat() statements.

this is what i get:
* fUpdate is called every frame en generates a ‘SoundMixer.computeSpectrum’ which is stored in ByteArray ‘mSpectrum’
* ‘mBMP.fillRect(mBMP.rect, 0×000000);’ <– draws a black rectangle to prevent spectrums overlapping.
* 'for (var i:int=0; i<mWidth; i++)
mBMP.setPixel32(i, 10 + mSpectrum.readFloat() * 20, 0xAAAAAAAA);' <– This for-loop draws a 'mWidth'-amount of pixels with a 1px horizontal increment and a (for me) mysterious Y position.

The part i don't understand is how the 'wave' pattern is generated. The Y-position of the setPixel32 is set by 'mSpectrum.readFloat() * 20'. I would expect this to give the same Y value for the entire for-loop (thus creating a horizontal line). Obviously it doesn't and the 'wave' pattern or spectrum is created. This means the 'mSpectrum.readFloat()' value changes during the for loop, doesn't it? Could you help me explain what exactly this readFloat does and how this results in the different Y positions within the same for-loop?

Hopefully my question is clear.
Thanks in advance for any answers.

greatings,

Tom from The Netherlands

thanks for the mp3 player

thanks a lot mi amigo!

Thanks a lot!!!

private function DispSongInfo (vTrack : int) {
txtDisplay.text = String(mData.mp3[vTrack].url);
}

In fStart, added call to the new function:

DispSongInfo(0) ;

Also, in fLoad:

DispSongInfo(vTrack) ;

I saw that someone didn’t want the set of mp3s to loop once they are all done playing. that shouldn’t be too hard.

In fOnComplete(), the call to fLoad() is unconditional.

This means that a song is going to be loaded and played no matter what. The following version will NOT replay the song list after the last song has completed.

private function fOnComplete(e : Event) : void
{
if (txtRepeat.text == “REPEAT ON”)
mChannel.stop();
fLoad(mTrack,0);
else
{
mTrack++;
mChannel.stop();
if (mTrack <= mItems – 1)
fLoad(mTrack,0);
}

}

Of course, a better solution would be to add a looping ON/OFF control and let user toggle the setting with a mouse click.