ReClock: Why SPDIF "not recommended"

[H.Mulot]

First of all: excuse my English. It's not my mother-tongue.

I have installed ReClock 1.8.2.1 beta today after using 1.8.0.5 beta all the time. Today a window pops up saying "This Beta has expired." I didn't know why and was very confused because other versions didn't work very well with my system (XP-PC and Beamer 3100 Mitsubishi).
I was very satisfied with version 1.7, but ReClock didn't load with PowerDVD 7.3 playing DVDs. But it loaded with BRs and HD-DVDs.
With version 1.8.0.5 ReClock also loaded when PowerDVD was playing DVDs. Everything was fine, no change would have been necessary if this version wouldn't have expired.

Because of the warning "This Beta has expired" I installed version 1.8.2.1beta and noticed that accepting SPDIF formats is "not recommended".

Could anyone explain why?

I don't use ReClock for PAL-Speedup-Reverse only, but generally for playing BRs, HD-DVDs and DVDs with my PC, because without ReClock juddering would appear.

In previous version the SPDIF-notice wasn't there.
Does the newer version change the quality of the sound now and makes it worse?

I'm looking forward to an explanation.

Thanks!

[James]

First of all: excuse my English. It's not my mother-tongue.

I have installed ReClock 1.8.2.1 beta today after using 1.8.0.5 beta all the time. Today a window pops up saying "This Beta has expired." I didn't know why and was very confused because other versions didn't work very well with my system (XP-PC and Beamer 3100 Mitsubishi).
I was very satisfied with version 1.7, but ReClock didn't load with PowerDVD 7.3 playing DVDs. But it loaded with BRs and HD-DVDs.
With version 1.8.0.5 ReClock also loaded when PowerDVD was playing DVDs. Everything was fine, no change would have been necessary if this version wouldn't have expired.

Because of the warning "This Beta has expired" I installed version 1.8.2.1beta and noticed that accepting SPDIF formats is "not recommended".

Could anyone explain why?

I don't use ReClock for PAL-Speedup-Reverse only, but generally for playing BRs, HD-DVDs and DVDs with my PC, because without ReClock juddering would appear.

In previous version the SPDIF-notice wasn't there.
Does the newer version change the quality of the sound now and makes it worse?


No, you may want to read this:

http://forum.slysoft.com/showthread.php?t=21898

If SPDIF works for you, just go ahead and enjoy it. For me and many others it doesn't.

[H.Mulot]

First thanks for your quick answer.

If you say that SPDIF doesn't work for you, what could be the alternative?
In the link you posted cbemoore wrote about this audio chain:

DTS bitstream -> DTS decoder -> PCM Audio -> ReClock -> Resampled PCM Audio -> AC3 Encoder -> AC3 bitstream -> SP/DIF to receiver

Is this the normal way the audio goes?

[cbemoore]

DTS bitstream -> DTS decoder -> PCM Audio -> ReClock -> Resampled PCM Audio -> AC3 Encoder -> AC3 bitstream -> SP/DIF to receiver

Is this the normal way the audio goes?

There are 3 different ways you can configure ReClock:

ANALOG (recommended by James)

DTS bitstream -> DTS decoder -> PCM Audio -> ReClock -> Resampled PCM Audio -> Soundcard DAC -> Analog out to receiver or speakers

AC3 ENCODING

DTS bitstream -> DTS decoder -> PCM Audio -> ReClock -> Resampled PCM Audio -> AC3 Encoder -> DD bitstream -> S/PDIF to receiver

AC3 PASSTHROUGH

DTS bitstream -> ReClock -> DTS bitstream with dropped or repeated frames -> S/PDIF to receiver


Its entirely up to you which method you use. Each method has pros and cons - there are plenty of posts on this forum describing other people's experiences.

[James]

There are 3 different ways you can configure ReClock:

ANALOG (recommended by James)

DTS bitstream -> DTS decoder -> PCM Audio -> ReClock -> Resampled PCM Audio -> Soundcard DAC -> Analog out to receiver or speakers

AC3 ENCODING

DTS bitstream -> DTS decoder -> PCM Audio -> ReClock -> Resampled PCM Audio -> AC3 Encoder -> DD bitstream -> S/PDIF to receiver

AC3 PASSTHROUGH

DTS bitstream -> ReClock -> DTS bitstream with dropped or repeated frames -> S/PDIF to receiver


Its entirely up to you which method you use. Each method has pros and cons - there are plenty of posts on this forum describing other people's experiences.

Here is another one:

HDMI (recommended by James)

DTS bitstream -> DTS decoder -> PCM Audio -> ReClock -> Resampled PCM Audio -> HDMI output on ATI 4xxx card

[gideon]

Notice something special about using SPDIF:-

Playing DVD X-Men3 with DTS recording.
With SPDIF ticked and the audio renderer in Zoomplayer set to M-Revolution, to Sound Processor, the audio is in DTS mode. No drop in Frames in Rendererrer; Average sync offset and Std dev sync offset.

However if SPDIF is not ticked, only Use AC3 encoder for PCM sound and only with multi channel sources ticked plus using Reclock Audio Renderer in ZP, the audio is only in DD mode. Initially drops in Frames in Rendererrer; Average sync offset and Std dev sync offset and later stablize to almost zero.

So it seems like using SPDIF is perfect for my case. Anyone has similar observations?