Slow Mp3 playback in Flash

robx2 · Dec 7, 2005, 11:50 PM

I'm building an educational site that's bringing in a lot of external streaming mp3 sounds. Got them all together, encoded at 128 CBR Stereo. Sound fine when played through Itunes.

Problem is they play at about 80% speed in Flash, even when played locally. I've read the Macromedia Doc that talks about Streaming sounds getting recompressed so I've tried changing publish settings to match 128 CBR and turned off "process stereo to mono". Set quality to Best.

Tried switching it to an event sound and no luck.

Any suggestions? Posted a similar message on kirupa and haven't had any luck.

dornoforpyros · Dec 8, 2005, 02:06 AM

no real suggestion here except that I have never had a sound file since up with flash at 100% of what I wanted. I've tried varios pre-loaders & such, internal/external sound files and sound in flash is always a bitch.

robx2 · Dec 17, 2005, 12:08 PM

In case anyone was dying to know... I converted 48K AIFFs (working with video) to mp3 and that was the problem. For Flash, your audio files need to have a sample rate that's a multiple of 11 (11, 22, 44.1) before you convert it down to mp3. Hope it helps somebody.

Dec 7, 2005, 11:50 PM	#1
robx2 macrumors member Join Date: May 2005	Slow Mp3 playback in Flash I'm building an educational site that's bringing in a lot of external streaming mp3 sounds. Got them all together, encoded at 128 CBR Stereo. Sound fine when played through Itunes. Problem is they play at about 80% speed in Flash, even when played locally. I've read the Macromedia Doc that talks about Streaming sounds getting recompressed so I've tried changing publish settings to match 128 CBR and turned off "process stereo to mono". Set quality to Best. Tried switching it to an event sound and no luck. Any suggestions? Posted a similar message on kirupa and haven't had any luck.

Dec 8, 2005, 02:06 AM	#2
dornoforpyros macrumors 68040 Join Date: Oct 2004 Location: Calgary, AB	no real suggestion here except that I have never had a sound file since up with flash at 100% of what I wanted. I've tried varios pre-loaders & such, internal/external sound files and sound in flash is always a bitch. __________________ www.JasonDorn.com \| this looked better on paper

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Dec 17, 2005, 12:08 PM	#3
robx2 Thread Starter macrumors member Join Date: May 2005	In case anyone was dying to know... I converted 48K AIFFs (working with video) to mp3 and that was the problem. For Flash, your audio files need to have a sample rate that's a multiple of 11 (11, 22, 44.1) before you convert it down to mp3. Hope it helps somebody.