We are looking for a solution for using flash player to play mp3s at both normal as well as something like [url removed, login to view] speed.
Our company provides a service in which we record voice agreements or verifications over the phone between our clients and their customers' a 'voice contract' if you will.
We are publishing a Flash-based mp3 player to play these verifications as mp3s over the web for our clients to listen to for quality control purposes. Although, to make this quality control process as efficient as possible, we want to provide our clients with the ability to playback a given mp3 at normal and [url removed, login to view] speed without requiring them to download two separate mp3s. That is, we need a method within flash to interpret one mp3 at different sample rates.
To those familiar with sound-editing software, we are looking for something similar to the ability to adjust the sampling rate of the sound which results in audio where a person might sound like a chipmunk.
We are not looking for an mp3 player, but a solution which could be as simple as a reference to a property of the sound object we perhaps overlooked.
We cannot accept any solution in which the flash player 'skips' through an mp3. That is, something such as moving the play-head up 300ms at a 300ms interval is not what we are looking for. The player needs to play back all parts of the mp3 at 1.5 times its normal speed.
So, if the original mp3 is sampled at 11,025Hz, we want to be able to play it back at that rate or 16,000Hz with the push of a button.
Also, a solution that alters the flash player itself is obviously out of the question.
A sample of the type of functionality we are looking for is attach or can be found at [url removed, login to view]
Keep in mind that this player, while behaving as we'd like, requires the user to download two separate mp3s representing 'normal' and 'fast' playback.
Proof of a solution shall be the source Flash file as well as a demonstration swf using our sample mp3 which is or attached or can be downloaded at [url removed, login to view]