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Reclock - DTS HD/TrueHD COnfusion - bitexact or not??

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saala

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Reclock,

I output DTS HD/TrueHD tracks via pcm via powerdvd/arcsoft via hdmi ati card to my onkyo.
Obviously using reclock. I was led to believe in the past you need to achieve bitexact - which I have but I cant remember why it needs to be bitexact though???

Anyway having read alot posts in this reclock forum recently I am confused now...do I need to be running in bitexact or not? Alot of post suggest thats not how reclock should be used???

I wish to achieve the best sound qaulity when outputting DTS HD/TrueHD tracks via pcm - whats the best way of doing that?

Great app by the James! :clap:

thanks in advance :)
Saala
 
The main idea of reclock is to get smooth video playback. For that it needs to resample the sound. If the resampler used is high quality enough, you probably would not notice any difference.

Now, if you want the highest sound quality available, you have two options:
(1)bit exact
(2)resampling to the higher sampling rate your receiver/dac works with

If you use (1), you could get jerky video playback, because the audio/video sync could be lost sometimes.
Some people claim that (2) gives even better sound quality than (1), so, your best option is to try both and decide for yourself.
If you cannot hear any difference, stick with the resampling option, because that will give you the smoother video experience.
 
yesgrey3 said:
The main idea of reclock is to get smooth video playback. For that it needs to resample the sound. If the resampler used is high quality enough, you probably would not notice any difference.

Now, if you want the highest sound quality available, you have two options:
(1)bit exact
(2)resampling to the higher sampling rate your receiver/dac works with

If you use (1), you could get jerky video playback, because the audio/video sync could be lost sometimes.
Some people claim that (2) gives even better sound quality than (1), so, your best option is to try both and decide for yourself.
If you cannot hear any difference, stick with the resampling option, because that will give you the smoother video experience.
Click to expand...

Thanks for the informative answer. :)

(1) plays well for me but I am up for better sound quality :agree:
(2) hmmm my display is set to 1080p24hz. My receiver is the onkyo sr607. So what options do I need to play with inorder to resample to the highest sampling rate? I dont know what the highest sampling rate my onkyo sr607 supports. :confused: How do I know it has worked?

Thanks once again :)

saala
 
saala said:
Thanks for the informative answer. :)

(1) plays well for me but I am up for better sound quality :agree:
(2) hmmm my display is set to 1080p24hz. My receiver is the onkyo sr607. So what options do I need to play with inorder to resample to the highest sampling rate? I dont know what the highest sampling rate my onkyo sr607 supports.
Click to expand...

Try 96kHz. My Onkyo 906 supports higher rates (up to 192kHz), but surround expansion / tone control / Audyssey only work up to 96kHz.

saala said:
:confused: How do I know it has worked?
Click to expand...

You hear something. ;)
 
James said:
Try 96kHz. My Onkyo 906 supports higher rates (up to 192kHz), but surround expansion / tone control / Audyssey only work up to 96kHz.



You hear something. ;)
Click to expand...

:clap: Can't argue with that! :agree:

I dont use audyssey - switched it off - so I could try 192khz? where within the app do i make this change? Is that it no further changes reqd?

Great app James! You :rock: my man!
 
saala said:
I dont use audyssey - switched it off - so I could try 192khz? where within the app do i make this change? Is that it no further changes reqd?
Click to expand...

You don't use any surround expansion like Dolby 5.1 -> 7.1? Or 2.0 -> 5.1?

Anyway, you set the output format in config.exe ("Configure ReClock" on your desktop)

EDIT:
Using 192 kHz is pretty pointless anyway in your case. It'll only consume much more CPU and memory.
 
saala said:
I dont use audyssey - switched it off - so I could try 192khz? where within the app do i make this change? Is that it no further changes reqd?
Click to expand...
If you don't have an acoustically treated listening environment I'd suggest you reconsider this approach. Audyssey is a great technology.
 
James said:
You don't use any surround expansion like Dolby 5.1 -> 7.1? Or 2.0 -> 5.1?

Anyway, you set the output format in config.exe ("Configure ReClock" on your desktop)

EDIT:
Using 192 kHz is pretty pointless anyway in your case. It'll only consume much more CPU and memory.
Click to expand...

Since you know what you are talking about I will try 96. Do I still need the slave option ticked? What about original speed and locked?

Thanks James :)
 
ashlar said:
If you don't have an acoustically treated listening environment I'd suggest you reconsider this approach. Audyssey is a great technology.
Click to expand...

I did try it but it made the LFE channel too bloated. I may give it another go.
 
saala said:
Since you know what you are talking about I will try 96. Do I still need the slave option ticked? What about original speed and locked?

Thanks James :)
Click to expand...
What? Never tick any options you don't know what they do. Set "Auto". Never tick "slave...".
 
James said:
What? Never tick any options you don't know what they do. Set "Auto". Never tick "slave...".
Click to expand...

Whoops! :doh:

Ok slave is unticked. Locked in unticked (what does this do btw?) and Auto has been selected.

Output set to 96khz.

Reclock tray icon green. Woo hoo!

I must say i think it sounds better - abit more "openess" in the sound than my previous reclock default setup.

I like it! :agree:

Thanks James! :clap:

So am I now running the best audio possible in my setup?

Also something on the side but I noticed after upgrading powerdvd 9 last night to patch 2320a my blurays with trueHD & DTS-HD 7.1 tracks output in 5.1 (via PCM via HDMI)? But the same blurays output in 7.1 in arcsoft media theatrer? Have 7.1 tracks always been broken in powerdvd?
Maybe I just havent noticed :confused:
 
saala said:
Do I still need the slave option ticked? What about original speed and locked?
Click to expand...
Those settings are for bypassing the resampler and get bit exact audio.
If you want to use the resampler, you have to do like James said.

saala said:
So am I now running the best audio possible in my setup?
Click to expand...
You should set resampling quality for the highest possible, and you should also try with 192kHz and compare.;)
 
yesgrey3 said:
Those settings are for bypassing the resampler and get bit exact audio.
If you want to use the resampler, you have to do like James said.


You should set resampling quality for the highest possible, and you should also try with 192kHz and compare.;)
Click to expand...

192khz? Hmmm I may try that :)
Wonder what the cpu usage will go up to?
 
James said:
With an Onkyo receiver? No, you don't. ;)
Click to expand...

Ok ok....I was tempted by the dark side :agree:
That was close :clap:

So since I cannot go above 96khz - what other areas for audio can I improve? Maybe 32 bit as opposed to 24bit padded to 32 bit?
 
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