IPB

Welcome Guest ( Log In | Register )

Re-encoding, with goal of "preserving quality"
twipley
post Jun 28 2010, 19:55
Post #1





Group: Members
Posts: 8
Joined: 28-June 10
Member No.: 81909



Hello everyone. I am sure you people are receiving such questions month after month, however I have done a quick search and have not found exactly what I am looking for, so I thought maybe of opening a new topic and seeing what you guys had to say.

Also please keep in mind that I am not too savvy in this domain. What I am looking to do basically is converting the audio of family-camera videos to CBR, so as to fix some sync issue I have stepped on (c.f. http://forum.doom9.org/showthread.php?p=1412005).

More to the point, my audio files currently are under "22050 Hz, 256 kbps ABR, stereo," and to fix the issue I have stepped on I apparently will have to convert them to "44100 Hz Stereo CBR." I wanted to know the necessary bitrate (kbps) for the preservation of audio quality, with the advantage of avoiding dwelling too much into "overkill."

Put into more succinct a manner, would a choice of 320 kbps, always with the goal of "avoiding potential degradations in audio quality," seem like a sound one?

P.S.: here is a common example (i.e. with "variable" bitrates averaging the one hundred fifties) of audio information outputted from the talked-about videos:

QUOTE
Audio
ID : 1
Format : MPEG Audio
Format version : Version 2
Format profile : Layer 3
Mode : Joint stereo
Mode extension : MS Stereo
Codec ID : 55
Codec ID/Hint : MP3
Duration : 3mn 38s
Bit rate mode : Variable
Bit rate : 148 Kbps
Channel(s) : 2 channels
Sampling rate : 22.05 KHz
Stream size : 3.88 MiB (11%)
Alignment : Split accross interleaves
Interleave, duration : 34 ms (1.01 video frame)
Interleave, preload duration : 859 ms

Thanks,
twipley

This post has been edited by twipley: Jun 28 2010, 19:58
Go to the top of the page
+Quote Post

Posts in this topic
- twipley   Re-encoding, with goal of "preserving quality"   Jun 28 2010, 19:55
- - greynol   http://www.hydrogenaudio.org/forums/index....showt...   Jun 28 2010, 19:57
- - twipley   Nice, and made me laugh (statistic-course memory u...   Jun 28 2010, 20:02
- - benski   Perhaps you could use MP3 repacker or a similar to...   Jun 28 2010, 20:47
|- - pdq   QUOTE (benski @ Jun 28 2010, 15:47) Perha...   Jun 28 2010, 21:37
- - lvqcl   QUOTE It'll be much larger, but no quality los...   Jun 28 2010, 21:21
- - Aleron Ives   ABR/VBR is not supported in AVI files, but if you ...   Jun 28 2010, 22:31
- - DVDdoug   Before you start worrying about "audio qualit...   Jun 28 2010, 22:55
- - 2Bdecided   You don't need to resample (read the doom9 thr...   Jun 29 2010, 10:00
- - lvqcl   QUOTE With a 256kbps 22kHz stereo source IIRC max...   Jun 29 2010, 16:18
|- - twipley   QUOTE (lvqcl @ Jun 29 2010, 16:18) IIRC m...   Jun 29 2010, 16:23
- - twipley   Hey everybody, I've spent the last hours on t...   Jun 29 2010, 16:20
- - lvqcl   Mp3packer will print min. possible CBR bitrate wit...   Jun 29 2010, 16:50
- - lvqcl   QUOTE 2) output wav using virtualdub, output mp3 f...   Jun 29 2010, 16:58
- - twipley   Alright. Worked great extracting mp3 file using ...   Jun 29 2010, 18:49
- - Fandango   I would use a modern container like MP4 or MKV.   Jun 29 2010, 20:09
- - twipley   But, AVI is compatible with my DVD player. EDIT:...   Jun 29 2010, 20:18
- - Aleron Ives   You don't need VirtualDubMod to extract the MP...   Jun 29 2010, 20:36
|- - twipley   QUOTE (Aleron Ives @ Jun 29 2010, 20:36) ...   Jun 30 2010, 14:11
- - lvqcl   You don't need avimuxgui actually: 1) Extract ...   Jun 30 2010, 15:48
- - twipley   Nice suggestion. I was just experimenting with tha...   Jun 30 2010, 16:58
- - Aleron Ives   VirtualDub lets you configure how you want to mux ...   Jun 30 2010, 20:29


Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 



RSS Lo-Fi Version Time is now: 30th October 2014 - 15:46