What Audio format do you use

[BiaTch 5.0]

What format do you use for audio encoding & @ what bitrate, better yet with which video codec?.

Mp3

OGG

AAC

AC3

WMA

[bb]

Unfortunately this is not a multiple choice poll. I use AC3, MP3, and OGG. Because I use the original AC3 track from the DVD whenever possible (2-CD rips), I voted for AC3.

BTW: What about MP2 for all the SVCD guys out there?

bb

[BiaTch 5.0]

Originally posted by bb
Unfortunately this is not a multiple choice poll. I use AC3, MP3, and OGG. Because I use the original AC3 track from the DVD whenever possible (2-CD rips), I voted for AC3.

BTW: What about MP2 for all the SVCD guys out there?

bb

MP2 for SVCD must be used I wanted to get an idea of mpeg4 divx/xvid/WMV encoders. Too bad I can't modifiy the post.

[OvERaCiD23]

AC3 (5.1 when possible, 192kbps when video needs more space) most of the time (nearly all 2-cd rips). for 1-cd rips (very rare, if I'm only going to watch it once), i'll use MP3 @ 128kbps. IMHO, nothing beats watching DivX with 5.1 AC3.

[lat3ralis]

It's good to see that no-one is using windows media audio (i presume you meant wma 8). Although the new wma 9 pro codec is pretty good with 5.1 channel audio :)

lat3ralis

[JohnMK]

Ogg Vorbis qualities 0-4.

-q4 for musicals and 2 CD encodes. I never use anything higher than this, as I consider it to be audibly lossless to most ears in a non-critical listening environment. If you're going to get that picky on the audio (e.g., higher than -q4), then I guess you just need the original DVD instead of MPEG-4. :D

-q0 through -2 for 1 CD rips and episodal material, like Star Trek (-q2), Simpsons (-q1), and Sex And The City (-q0).

If I encounter a highly compressible movie, I may decide to reencode the audio to a higher bitrate. This occurs rarely, but in such a case I will use no more than --quality 4, for the reason I explained above.

[JohnMK]

Only 35 votes? Come come people. Let's make this representative. I suspect a lot more people use mundane ol' mp3 than are willing to admit to it. ;)

[Justinus]

I use MP2 for SVCD :D

[DIggedy]

I use mostly DTS for dvd-r where possible.

[RadicalEd]

You left out RealAudio, which imo still gives the best results especially at low bitrates (32 kb per channel) :sly:

But for normal XCD encodes I use vorbis at -q .200 ~90kbps most of the time along with XviD

[DSPguru]

Originally posted by RadicalEd
You left out RealAudiojust added.
you can place your vote now :)

[user]

Hi,

for HiFi audio only, I use mainly MPC now.

http://www.audio-illumination.org/forums/index.php?act=ST&f=11&t=1927


I think, it is not possible to implement mpc as audio to divx (and play later the divx with sound...) , or should I be wrong ?


For svcd I use mp2, but with DS2 encoded stereo.

hmm, it would be time for me to create my first divx...

Or I wait, until I have built up my audio-video-PC.



btw, for mp2 best settings in toolame or mp2enc are following:

stereo (keeping surround)

psy model:

bitrates 160 and below:
psy 2

bitrates 224 and higher:
psy 1


192 kbit/s have not been tested or published, yet.
I expect, that psy 1 or 2 will match nearly equal.

[RadicalEd]

Originally posted by DSPguru
just added.
you can place your vote now :)

d'oh, already voted for ogg ~__~

[J_P_F]

I use ogg generally Quality 0.1 (80kbph). As for video it Divx 5.02 in a ogm containter it's the most stable I've never lost audio sync. I especially like the fact that you can navigate to any part of the movie pretty straigh away with out the audio having to catch up. Ogg/vorbis rules :D

[Aneurysm9]

I generally use Vorbis for 1CD and most 2CD rips, but now that I've got a 240Gb RAID 0 array set up I'll probably start using AC3 more often. I recently encoded South Park: Bigger, Longer, and Uncut with XviD 1 pass 100% quality and 5.1 AC3 transcoded to 320Kbps in just under 1.1Gb. Gotta love cheesy animation! :D

[tangent]

Originally posted by JohnMK
Ogg Vorbis qualities 0-4.

-q4 for musicals and 2 CD encodes. I never use anything higher than this, as I consider it to be audibly lossless to most ears in a non-critical listening environment. If you're going to get that picky on the audio (e.g., higher than -q4), then I guess you just need the original DVD instead of MPEG-4. :D

-q0 through -2 for 1 CD rips and episodal material, like Star Trek (-q2), Simpsons (-q1), and Sex And The City (-q0).

If I encounter a highly compressible movie, I may decide to reencode the audio to a higher bitrate. This occurs rarely, but in such a case I will use no more than --quality 4, for the reason I explained above.

-q-1 rocks :)

[JohnMK]

Yep, just tested that out. It truly does. But it honestly has no place for divx encodes! Depending on the length of the movie it can save you maybe 20-30MB for extra video quality, but the loss in audio quality is far, far more apparent than the few percent reduction in video bits. This is assuming you're doing 700MB 1 CD movie encodes. I assume it has its application elsewhere.

[SILICON]

I use MP2, Is the standar for VCD & SVCD

I use 160- 224 bitrate.

For music, I use MP3. Mi standalone DVD can reat it very well.
I use LAME with ABR 192

[user]

"I use LAME with ABR 192"

You use --alt-preset 192, or which setting ?

But if you go for these bitrate range, why don't you go for --alt-preset standard, or --alt-preset standard -Y , (-Y saves some bitrate) ?

[MaTTeR]

AC3 about 80% of the time, the other 20% would be Vorbis at Q-3.

[iago]

AC3 about 20% of the time, the other 80% would be Vorbis at Q-2. :)

[aLu]

"the public" is has notified the OGG format now, and MP3 has an "outdated psychoacoustic model", so they say (PC Professional). While I mostly use OGG because of its quality at approx 64k, I still think MP3-128k is the best choice for any movie with much music (Lame Encoder, CBR -I don't think that's MP3 pro -?). For the most athmosphere, I use the original AC3, but that's rarely necessary (why not stick with the DVD then ?)

[JohnMK]

People who hear well most definitely know ogg vorbis beats the crap out of mp3 @ 128kbit/s.

[BluDChyLD]

i've always used mp3 at 160 (or 128 if i need more space for video), but im making my first ogg DivX as I type :)

I hope the extra audio quality will be worth the hassle, I stuck to mp3 because of it's ease of use with gordian knot... As for ac3, I keep the 2.0 tracks on a regular basis but rarely the 5.1 as I only have a 2 channel speaker setup.
BluDChyLD

P.S You guys seem to recommend very low bitrates for OGG I'm encoding at 0.350 113 at the moment, what quality is equavilent to 160 mp3?

[JohnMK]

You've probably right on spot.

Ogg Vorbis and mp3 produce different artifacts. I personally can't tolerate mp3s artifacts, whereas Ogg Vorbis artifacts are more subtle. For that reason, if I'm going to use mp3, I can't go below 128kbit/s. Maybe 112kbit/s is okay once in a while, but at 96kbit/s and below, mp3 starts to show its stretch marks. Ogg Vorbis is completely different. It excels at these low bitrates. Ogg Vorbis @ 80-100kbit/s is usually imperceptible from the original audio, to me, if I'm not listening extremely closely. For this reason I've now decided never to use above -quality 3, even for musicals. This to me is nearly always transparent from the original audio. If I really care about having a pristine copy of a movie, I'll just go out and buy the DVD.

[BiaTch 5.0]

Originally posted by JohnMK
You've probably right on spot.

Ogg Vorbis and mp3 produce different artifacts. I personally can't tolerate mp3s artifacts, whereas Ogg Vorbis artifacts are more subtle.
Just as mp3 artifacts you need trained ears to detect OGG Vorbis artifacts, after a while of OGG listening you’ll start to see they are just as bad.

[JohnMK]

Your point is commonly made but only partially true. Least true is that it's 'just as bad.' Many tests show otherwise.

[RadicalEd]

Originally posted by BiaTch 5.0

Just as mp3 artifacts you need trained ears to detect OGG Vorbis artifacts, after a while of OGG listening you’ll start to see they are just as bad.

:/
the difference is that vorbis dosent start to noticably artifact until around < 70 kbps

[JohnMK]

Exactly why -q1 is now my lower limit. :)

[Aneurysm9]

Vorbis is wonderful for commentary tracks. I usually use OggMachine's lowest quality setting and get around 45-50Kbps, but the audio is fine as it's mainly talking and the bit of background sounds that are audible are not really important. With AC3 I won't go below 96Kbps even for commentary. Hopefully the next OggDS filters will fix the problems with 5.1 and 2ch streams in the same file.

[AudioVideoMaster]

Definately AC3 at 448kbps about 80% of the time. Variable bit rate MP3 at 160k--320k for the other 20%. I archive old cartoons and one time only aired TV specials for later viewing for a boring or rainy day. So I use the full frame (720x480) MP2 video and AC3 audio combination the most.

:D