DVD audio 192/128/112: any obvious difference?

[Phoebos]

I am wondering, if it is not for music content, does audio encoding to DVD mp2 in 192, 128 or 112 make any difference that the ear can detect? I cannot hear any my self concerning VHS material with family content (no music).
112 seems ok to me and the space loss is minimised....

[daamon]

Hi Phoebos,

If it's non-music and you can't hear the difference / are happy with the end product then go for it.

I've usually seen 128 recommended as the minimum with 192 as the preferred, though I don't recall why.

If space is absolutely crucial, and 112 helps just that little bit, then fair enough. But, if not, then why not have 192 and that bit better audio anyway?

[freestyler]

192 for 2 channel stereo is the dolby recommended bitrate

[jimmalenko]

IMO it's totally a user preference thing. If YOU can't hear the difference, and your player can play it no worries, then go for it, I say

[Captain315]

112 is just fine for voice, etc. but if you want quality music then definitely go for the 192.

[energy80s]

Or if you are using the native TMPG audio encoder go for 256k. This is also the bitrate used for BBC Digital TV sound.

[lordsmurf]

192/224/256/384 for 2/0 ... not really
anything less.... YES, big drops in MP2 or AC3.

[Phoebos]

Why you say this energy80s? You mean TMPG audio encoder is not working ok for less than 256? I use tooLame sometimes as a plug in in TMPGEnc but the difference is not noticable.

[freestyler]

320 can also be done.

I do 192 kbps AC3 all the time.

[johns0]

For voice only 128 is good enough.

[Cornucopia]

The bitrates quoted all refer to 2ch (stereo/dual/binaural) audio. If you really aren't doing music as main focus--just voice, etc--then save a bundle (1/2 the size in fact!) by doing them as 1 channel.

Then, your 112/128/192/224 choices become 48/56/64/80/92/112 choices (with the same perceived quality per channel).


HTH,
Scott

[energy80s]

Why you say this energy80s? You mean TMPG audio encoder is not working ok for less than 256? I use tooLame sometimes as a plug in in TMPGEnc but the difference is not noticable.

Yes, the built-in audio encoder in TMPG isn't the best. This is especially so at lower bitrates. If you are using Toolame than you can go for lower bitrates and still have the same sound quality. With Toolame, use at least 192k stereo or 96k mono.

[midnightsun]

FYI if you encode to 2.0 dolby and use a bitrate lower than 192kb/s you're cutting the frequency bandwidth (higher frequencies get cut).

Whether this is ok for voice/dialogues it's up to you to decide.

[Phoebos]

Thank you very much for your responses

[funkguy4]

hell for VHS source, 112 ought to be fine...make sure to use a good upsampler though

[SatStorm]

I wouldn't go lower 192kb/s for mp2!

It has to do with the things our brain hears but our ears don't!

Less headaches for sure when you use 192kb/s for mp2! In a way it's like mp3 at 128kb/s

[ZippyP.]

hell for VHS source, 112 ought to be fine...

In fact VHS can be a source of high quality stereo sound. I'm speaking of commercial tapes and not home footage like in the original post.