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Need so help with merging audio and video file
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teflonz
Suspended due to non-functional email address
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13. March 2006 @ 13:18 |
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I need to convert .ac3 file i extracted to Mpeg3 and merge it back into the .avi. what free program can i use to do this ? Thanks for your help guys if u can.
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celtic_d
AfterDawn Addict
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13. March 2006 @ 19:15 |
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mencoder can do it in one go.
mencoder.exe -ovc copy -oac mp3lame input.AVI -o output.avi
Otherwise BeSweet or HeadAC3he to convert the AC3, then mux with VirtualDubMod or AVIMuxGUI.
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AfterDawn Addict
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13. March 2006 @ 21:58 |
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hi guys
just curious as to why change AC3 to MP3 ?
thanks for letting me tag along....
Nothing here to see, move along folks.
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teflonz
Suspended due to non-functional email address
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14. March 2006 @ 02:44 |
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First, thanks for your help and quick response im trying the solution youve provided right now ill let u know how it goes thanks again.
Yes your right to ask why do i need to change the audio .ac3 audio stream to mp3 ?
I have a Portable multimedia player from RCA the Lyra 2780. ( http://www.rcaaudiovideo.com ) The Lyra? A/V Jukebox plays back mpeg4-sp content created with the DIVX4/5 Codec. Please see the Video Compatibility Checklist for more details.
Video type
VGA
QVGA
Video Resolution (Lines)
640 x 480
320 x 240
Maximum Video Bit Rate
1 Mbps
1.5 Mbps
Maximum Audio Sampling Rate
32 Khz
44.1 Khz
Maximum Audio Bit Rate
96 Kbps
128 Kbps
This message has been edited since posting. Last time this message was edited on 14. March 2006 @ 02:48
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teflonz
Suspended due to non-functional email address
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14. March 2006 @ 07:29 |
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I cant use mencoder cus im On XP. I ve extracted the .AC3 using the tutorial for Virtualdubmod. i converted the AC3 audio to .WAV using Headache.
This is where i think im making a mistake becaus ei just dont know how to do it maybe lol. I open the Video file in virtualdubmod I select direct stream copy . the i open Stream List i add the .WAV file, i select the .WAV files so the speaker icon is visible I goto file-save as- save but when its done i check the Info in GSpot and it still says it has .AC3 Celtic maybe u can help me a with a lil more detail instruction how to do it with VirtualDUBMOD id appreciate it alot . thanks again
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The_OGS
Senior Member
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14. March 2006 @ 10:57 |
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ABit AB9 Pro
Intel Core 2 Duo E6420 @ 2.4GHz
2GB OCZ PC2-6400 Platinum XTC R2
ATI Radeon X1900XT 512MB
Enermax Liberty 620W
320GB/16MB WD, 150GB/16MB Raptor
Plextor PX-755SA DVD (SATA)
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teflonz
Suspended due to non-functional email address
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14. March 2006 @ 11:18 |
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OMG U GUYS ARE SO Awesome thanks soo much its worked on my PC now i just gonna load it onto my RCA lyra and see if i can output to TV thanks soo much again i tell everyone about this site cus u guys r da bestest
This message has been edited since posting. Last time this message was edited on 14. March 2006 @ 11:40
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The_OGS
Senior Member
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14. March 2006 @ 11:44 |
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Quote:
WAV > Compressed audio?
Yes.
WAV is uncompressed compared to AC3 or MP3 audio, and sometimes called LPCM in the DVD world.
A typical WAV (and the best-known example) is an audio CD: Pulse-Code Modulation of a certain sample size (ie. 16-bit) at a certain sampling frequency (ie. 44.1KHz) defines the Redbook CD Standard.
AC3 5.1 contains six channels, and these will be downmixed by Azid into a stereo WAV @ 48KHz. This WAV will then contain Dolby ProLogic-type surround 'matrixed' into the stereo channels.
A 120 minute film will have AC3 5.1 ~500MB.
The same thing in WAV will be ~1400MB.
The final MP3 should be ~150MB.
Your device requires 128Kbs bitrate; this would appear to require CBR (the old Napster standard, barely adequate).
The AC3 audio is sampled @ 48MHz - this apparently must be down-sampled to 44.1MHz, either during the WAV extraction or when encoding the compressed audio file, to be compatible with your Lyra 2780 device.
It is possible to encode MP3 audio using VirtualDub, but not a good plan... I had serious synch issues doing that, when making AVIs.
Using CDex to encode audio, then interleaving final AVI using Nandub, works much better :^)
L8R
ABit AB9 Pro
Intel Core 2 Duo E6420 @ 2.4GHz
2GB OCZ PC2-6400 Platinum XTC R2
ATI Radeon X1900XT 512MB
Enermax Liberty 620W
320GB/16MB WD, 150GB/16MB Raptor
Plextor PX-755SA DVD (SATA)
This message has been edited since posting. Last time this message was edited on 14. March 2006 @ 11:46
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celtic_d
AfterDawn Addict
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14. March 2006 @ 18:08 |
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mencoder works fine under XP if that is what you meant.
Why not convert directly to mp3 in BeSweet/HeadAC3he?
You would be lucky if it works since according to the above it supports SP only and there is a fairly decent chance that your file uses bframes (an ASP feature).
This message has been edited since posting. Last time this message was edited on 14. March 2006 @ 18:09
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