Problem with recording audio in Flash (Red5, ffmpeg)

Posted by AT on Stack Overflow See other posts from Stack Overflow or by AT
Published on 2010-04-08T12:48:35Z Indexed on 2010/04/08 12:53 UTC
Read the original article Hit count: 360

Filed under:

red5

|

flash

|

actionscript3

|

ffmpeg

|

flv

I'm trying to implement a small program with Flash and php that records audio and converts it to mp3.

Currently I have Red5 server up and running, I can connect to it with no problems and I can publish flv recordings to the server. When I listen to the flv with Wimpy FLV player it seems to be fine. The problem comes when I'm trying to convert it with ffmpeg on the command line. I'm simply using a command ffmpeg -i but the output wav is about 50% slower than the input. When I record 10sec, the output is 15sec and pitched down.

I've also tried all kinds of bitrate settings, -nv option, etc. but nothing seems to work. I have a recent version of ffmpeg that supports nellymoser format.. Don't know what to do. Anyone have any ideas?

© Stack Overflow or respective owner

Related posts about red5

red5 Install on Ubuntu 10.04? Problems with libslf4j

as seen on Super User - Search for 'Super User'
I've been trying for many days to get Red5 to install on Ubuntu 10.04. I finally managed to get red5.sh to stop hanging a few seconds in but now I'm getting the following error: Setting default logging context: default Exception in thread "main" java.lang.reflect.InvocationTargetException at sun… >>> More
Getting Error while running RED5 server - class path resource [red5.xml] cannot be opened because it does not exist

as seen on Server Fault - Search for 'Server Fault'
HI , I have installed java version "1.6.0_14" and Ant version 1.8.2 for red5 Server. when i am trying to run red5 server i am getting the following error please help Root: /usr/local/red5 Deploy type: bootstrap Logback selector: org.red5.logging.LoggingContextSelector Setting default logging context:… >>> More
Getting Error while running RED5 server - class path resource [red5.xml] cannot be opened because it does not exist

as seen on Server Fault - Search for 'Server Fault'
HI , I have installed java version "1.6.0_14" and Ant version 1.8.2 for red5 Server. when i am trying to run red5 server i am getting the following error please help Root: /usr/local/red5 Deploy type: bootstrap Logback selector: org.red5.logging.LoggingContextSelector Setting default logging context:… >>> More
does red5 read tomcat-users.xml

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I have been busy creating an app for Red5. Imagine what was my surprise when I tried to configure basic/digest authentication and I couldn't. What struck me as strange is that I have a running tomcat instance that works and authenticates correctly with the following xmls: web.xml (part of) <security-constraint> … >>> More
What are differences between Red5 and Flash Media Server

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm building a simple flash app that records user voice. I'm new to flash. What should I consider when choosing between red5 and flash media server? Can they both be hosted on EC2? Thanks! >>> More

Related posts about flash

Flash Player error logs on Mac OS X

as seen on Super User - Search for 'Super User'
I'm on Mac OS X 10.5.8 running Flash Player 10,0,32,18. Flash Player is dumping giant amounts of error logging into the system log (stuff like "bit length overflow" and "code 0 bits 6-7"). Here's a tiny sampling: Oct 14 13:09:41 thorst-2 [0x0-0x58058].com.adobe.flash-10.0[2416]: bit length overflow Oct… >>> More
phablet-flash aborting while installing Ubuntu Touch on Nexus 4

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I have a Nexus 4 with Android 4.3 installed and I want to flash it to Ubuntu Touch. My system is Ubuntu 12.04, running inside a virtual machine on Mac OS 10.5.8. To use the VM, I opened an NAT bridge and forwarded port 5037 for adb, I can see the Nexus with adb and e.g. use the adb shell into it.… >>> More
Mac - Flash file not loaded in independent flash player

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I am working on an independent application to play flash files on Mac. I have already done the same for Linux, and it works flawlessly but on mac for some reason flash is not drawing to my window. It is not throwing any kind of error too. I am using Flash player 10, that would mean that I am… >>> More
How to stream a shoutcast radio broadcast in Flash (Shoutcast Flash Player)

as seen on Stack Overflow - Search for 'Stack Overflow'
I've been looking for a solution to this for years, but nothing is conclusively documented. There are many Shoutcast Flash players out there (e.g. radio.de) so I know it's possible. However, most of my research leads to this: s = new Sound(); s.loadSound ("url.of.shoutcaststream:8003",true); Which… >>> More
Flash Web Design with the Help of Flash Professionals

as seen on Article City - Search for 'Article City'
Flash has often been criticized by web specialists for its relatively slow loading time. It?s also been targeted by many people who have experienced loading problem of a Flash site on the web. But no... [Author: David Jackson - Web Design and Development - August 31, 2009] >>> More