HI FRANCESCO AND SERGIO,
THANK YOU BOTH FOR THE ADVICE. I TRIED NOW WITH AUDIO AT 12K
AND VIDEO AT 50K. I ALSO RECOMPILED WITH -O3. ON OTHER
PHONES THE SOUND IS BETTER ALREADY BUT ON MY NOKIA N80 IT
STILL IS A LITTLE BLURRY. FF I TURN OF SENDING VIDEO AND
AUDIO FROM THE PHONE HOWEVER THE INCOMING AUDIO QUALITY
IMPROVES QUITE A LOT. MIGHT THIS BE SOMETHING RELATED TO THE
PROBLEM?
WITH KIND REGARDS,
RENé
-----OORSPRONKELIJK BERICHT-----
VAN: ASTERISK-VIDEO-BOUNCES LISTS.DIGIUM.COM
[MAILTO:ASTERISK-VIDEO-BOUNCESLISTS.DIGIUM.COM] NAMENS
FRANCESCO
VERZONDEN: DONDERDAG 12 APRIL 2007 9:59
AAN: DEVELOPMENT DISCUSSION OF VIDEO MEDIA SUPPORT IN
ASTERISK
ONDERWERP: RE: [ASTERISK-VIDEO] AAC AUDIO
HI RENè,
TRY TO HINT AUDIO TRACK INDICATING ALSO PAYLOAD SIZE:
MP4CREATOR --HINT=2 -MTU=64 DEST.MP4
I SUGGEST YOU ALSO TO FOLLOW SERGIO TIP TO COMPILE WITH -O3
OPTION. YOU
MAY ALSO USE AMR MODE 8, WITH FFMPEG OPTION -AB
12K...LOWERING BIT RATE
DOESN'T GIVE ME ANY RESULT, SO I DON' T THINK IT IS A GOOD
CHOICE.
QUALITY SHOULD BE MUCH BETTER. BUT STILL NOT GOOD IN NOKIA
N80 AS IN
OTHER HANDSET.
I'M WORKING ON IT AND LET YOU KNOW AS SOON AS I HAVE NEWS.
GREETINGS
FRANCESCO
ON WED, 2007-04-11 AT 19:03 +0200, RENé VAN WEERT WROTE:
> HI,
>
> I MISTAKENLY USED AAC INDEED. I AM NOW BACK TO AMR-NB
WHICH IS WORKING, BUT
> NOT 100% CORRECT.
> I PUT UP A SOUND SAMPLE OF HOW IT SOUNDS ON MY NOKIA
N80 HERE:
>
HTTP://WWW.DIGITALINTERACTION.NL/DOWNLOADS/AUDIOSAMPLE.MP3
>
> IS IT BECAUSE THERE IS STILL SOME WORK TO DO OR BECAUSE
I AM DOING SOMETHING
> WRONG THE AUDIO SOUNDS SO WRONG?
>
> I HAVE USED FFMPEG TO CONVERT MY MEDIA FILE AS
FOLLOWS:
> FFMPEG -I WONING2.WMV -AB 7.4K -AC 1 -ACODEC AMR_NB -AR
8000 -VCODEC H263 -R
> 10 -S QCIF -B 46K -PASS 1 -PASSLOGFILE LOG DEST.MP4
> FFMPEG -I WONING2.WMV -AB 7.4K -AC 1 -ACODEC AMR_NB -AR
8000 -VCODEC H263 -R
> 10 -S QCIF -B 46K -PASS 2 -PASSLOGFILE LOG DEST.MP4
>
> MP4CREATOR --HINT=1 DEST.MP4
> MP4CREATOR --HINT=2 DEST.MP4
>
> THE DESTINATION FILE IS AVAILABLE HERE:
> HTTP://WWW.DIGITALINTERACTION.NL/DOWNLOADS/DEST.MP4
> MP4INFO GIVES:
> TRACK TYPE INFO
> 1 VIDEO H.263, 77.500 SECS, 44 KBPS, 176X144
10.000000 FPS
> 2 AUDIO AMR, 78.240 SECS, 8 KBPS, 8000 HZ
> 3 HINT PAYLOAD H263-2000 FOR TRACK 1
> 4 HINT PAYLOAD AMR FOR TRACK 2
>
> THE AUDIO DOES SOUND CORRECT WHEN PLAYED BACK ON A PC.
> I ALSO TRIED WITH LOWER BITRATES FOR BOTH AUDIO AND
VIDEO BUT WITHOUT
> RESULT.
>
> ANY CLUES IN WHAT I'M DOING WRONG?
> THANKS IN ADVANCE.
>
> RENé
>
> -----OORSPRONKELIJK BERICHT-----
> VAN: ASTERISK-VIDEO-BOUNCESLISTS.DIGIUM.COM
> [MAILTO:ASTERISK-VIDEO-BOUNCESLISTS.DIGIUM.COM] NAMENS
SERGIO GARCIA
> MURILLO
> VERZONDEN: DONDERDAG 5 APRIL 2007 12:48
> AAN: DEVELOPMENT DISCUSSION OF VIDEO MEDIA SUPPORT IN
ASTERISK
> ONDERWERP: RE: [ASTERISK-VIDEO] AAC AUDIO
>
> HI
>
> WHY DO YOU NEED TO USE AAC?
> YOU SHOULD USE ONE OF THE CODECS SUPPORTED BY ASTERISK,
CURRENTLY YOU CAN
> USE PMCU OR GSM-AMR (FOR USING IT WITH APP_H324M).
> I ADDED AN APPLICATION A FEW DAYS AGO FOR CREATING AN
MPR4 FILE FROM A PCMU
> FILE, YOU CAN FIND IT HERE:
>
>
HTTP://SIP.FONTVENTA.COM/SVN/ASTERISK/TOOLS/PCM2MP4.CPP
>
> GREETINGS
> SERGIO
>
> ----- ORIGINAL MESSAGE -----
> FROM: "RENé VAN WEERT" <RVWEERTGMAIL.COM>
> TO: "'DEVELOPMENT DISCUSSION OF VIDEO MEDIA
SUPPORT IN ASTERISK'"
> <ASTERISK-VIDEOLISTS.DIGIUM.COM>
> SENT: THURSDAY, APRIL 05, 2007 12:17 AM
> SUBJECT: [ASTERISK-VIDEO] AAC AUDIO
>
>
> HI EVERYONE,
>
> I'M USING APP_MP4 RIGHT NOW AND IT IS WORKING GREAT.
THE ONLY PROBLEM I HAVE
> IS THAT I CANNOT GENERATE 8000HZ AAC AUDIO WITH MY
FFMPEG. I TRIED ALSO
> SEVERAL DIFFERENT (PRECOMPILED) VERSIONS BUT WITHOUT
ANY LUCK. FFMPEG ONLY
> ACCEPTS 11025HZ OR HIGHER. IS THERE ANY OTHER WAY TO
CREATE THE AUDIO FOR
> THE MP4 FILE?
>
> WITH KIND REGARDS,
>
> RENé VAN WEERT
>
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Greetings
Sergio
----- Original Message -----
From: "René van Weert" <rvweert