N-VI and Sky HD, and more volume?

I do not use the optical/digital connection between my Sky HD and nVi as I find the sound is distorted: voices sound slurred and very bass heavy. So, I just take RCA analogue output from HD box into Nvi. No problem with that.

At first, I thought it was the sky HD box but I have two of them and they both do it , so I concluded it was nVi and switched to analogue input.

Geoff

Geoff

Thanks, I'll try the RCA analogue output. Although sound quality is very good no issues with that or too much bass.

Regards

Brett

There is a way of forcing the n-Vi to lock to a specific sample rate on digital inputs, specifically 48Khz. This cures the issue generally.

Speak to your dealer, they should be able to help.

Hi Geoff
will the analogue connection give you a 5.1 sound
sundar

As far as I am aware there is only a 2 channel analogue output

The analogue input will lose the 5.1 sound which is the whole point of having Sky HD and n-Vi for me.

I've had this problem intermittmently since install and that was way back in Xmas 2006/7.

I've tried the 'forced 48KHz' route and just updated the n-Vi to the latest firmware but I still get the issue from time to time.

Power cycling both n-Vi and Sky box seems to help but that's frustrating when you're in the middle of a program.

The feedback I'm getting from my Naim dealer is that it's the Sky HD box that's out of spec - hence the n-Vi occaisionally loses sync - so you get the 'stuttering' sound output. It's only on 5.1 if you switch the digital output on your Sky HD box to Stereo then the problem goes away completely - but then again you've lost 5.1

I do find it bizarre that Naim can't sort this out but I have seen other forums where other AV amps have the same issue eg Yamaha.

Anyone from Naim available to comment on this?????

quote:

I do find it bizarre that Naim can't sort this out but I have seen other forums where other AV amps have the same issue eg Yamaha.

Basically, cable and satellite boxes suck. Their primary focus is to manage content, not deliver it. As a result, the electronics ultimately are of poor quality relative to the rest of the audio / video setup.

This is the area in the consumer electronics industry most in need of a paradigm shift–unfortunately, the primary issue to be dealt with lies on the DRM side (or, "analogue rights management"–think about how long we have had scrambled channels, even before "digital"...).

Were a standard to be agreed upon and stuck to (c.f., the demise of CableCard), think of the product offerings there would be for high-end MPEG decoder / scaler / tuner / content management boxes for either source type...the TivoHD boxes come close, but have their own issues.

I use a Samsung HD OTA tuner (that's Freeview to you folks on the other side of the pond) 'cos the HD cable quality was so poor. (It's also what many of the digital stations over here are using for off-air production monitoring, as I've come to find out.)

Still, though, the occasional "odd" Dolby ATSC header comes across with a missing center channel, or with incorrect dialogue normalization–of course, this is independent of what the AV decoder is doing, and is often resolved by the broadcaster fairly quickly on their end. (In other words, it happens far more frequently at the broadcast end than you might realize, which makes fault tracing somewhat nebulous.)

Having been given guidance by AV@naim about the forcing 48kHz route, so far it has cured my problem, but I am only using the nVi in a 2 channel setup, at present.

Definitely worth trying.

Geoff

enlighten us please munch

neil

This has been an ongoing issue for a while...

We are slave to the source when it comes to the SPDIF inputs, and as Dave has noted it does depend on many things. We cannot garuantee this will work every single time, in every setup.

As I say, we do supply a hack to fix the header (which helps in most cases), but given the Dave's comments above, you are going to get situations where this will happen.

Another route you may want to look in to is the grounding situation with your system. I know of at least one case where ground loops via other system components was causing dropouts on the digital inputs. In this case, it was because the user had a grounded aerial feed distribution (block of flats) and for some reason, he would get spikes up the ground of his lead which freaked the SPDIF mux chip in the n-Vi (via the coax ground).

Hi,

I have the same stuttering sound problem and it is driving me nuts!

Can anybody let me know the hack to force the 48Khz sample rate.

Many thanks,

Andrew

If you e-mail av@naim, I am sure he will send you the correct details, as he did with me and it works.

Geoff