Comments on: Streaming and playing fixed-length MP3s using the iPhone SDK

By: Tarun Sharma

Tarun Sharma — Tue, 09 Mar 2010 18:36:13 +0000

Nice post buddy thanks a lot

By: Wally Young

Wally Young — Thu, 04 Mar 2010 20:19:28 +0000

Looks like it won’t work with anything below a 128kBPS MP3 file.

By: Wally Young

Wally Young — Thu, 04 Mar 2010 19:54:23 +0000

Hmm interesting… The test file noted above is a layer 3 MP3 file recorded at 48kBPS, 16Hz mono.

By: Randy

Randy — Thu, 04 Mar 2010 19:37:47 +0000

I’m not sure. It has worked for just about any mp3 I have tried.

By: Wally Young

Wally Young — Thu, 04 Mar 2010 19:30:41 +0000

What format do the mp3 files need to be in to work properly in your sample app? I’ve tried this one: http://www.wally-young.com/test.mp3 but doesn’t work. Thanks!

By: Chris Hobbs

Chris Hobbs — Fri, 05 Feb 2010 02:45:44 +0000

I’m not sure why you used the file system, perhaps there was an external reason. I was able to get fixed length mp3s to play from urls with out too much problem.

My main goal was to get gapless playback of fixed length remote mp3s.
Here’s the progress so far:
http://github.com/ckhsponge/AudioStreamer

It’s not perfect yet, I need to figure out how to ignore the mp3 padded silence, I believe.

By: Saurabh

Saurabh — Wed, 27 Jan 2010 10:45:17 +0000

Hi,

Same problem as the others… The app crashes when trying to play certain files. Please can anyone enlighten more on this issue. I tried changing the bitrate of the file, but that doesn’t work.

Thanks…

By: Swap

Swap — Sat, 16 Jan 2010 02:05:15 +0000

Hi Randy,

Thanks for this code base. Helps a lot.

There is 1 critical issue we found in the throttling code. We have observed that under certain cases the code never enters the “Stop Throttling” (below) after the throttling has been started:

if (isThrottling) {
isThrottling = NO;
AudioQueueStart(audioQueue, NULL);
self.state = AS_PLAYING;
}

This results in an interrupting in the stream playback. Manually clicking pause/play starts the stream again.

Any idea how this can be fixed? Would really appreciate your reply.

Thanks a lot in advance.

Swap

By: QFDaniel

QFDaniel — Mon, 11 Jan 2010 16:24:09 +0000

Actually,good post. thx

By: Hitesh

Hitesh — Fri, 08 Jan 2010 10:01:31 +0000

Hello,
First of all, i would like to say Thanks for helping this code for my Application, But i want to know how it is possible for FastForwarding & Rewind functionality possible, please reply me a.s.a.p, it would be great help for me.