Onkyo 805 audio delay / lip synch problem - Page 4

Originally Posted by CraigW

MonkeyGoD,

When you tested with the 30ft distance, were all the speakers set to 30? I thought the whole distance delay is relative. So if all channels were set to 15ft except one that is set to 17ft the there is no delay between channels that are equal and the 15ft channel signals would delayed by 2ms compared to the 17ft no delay applied (ie. 17 ft max distance would apply to a zero delay)

I could see setting one channel at 30ft and all the others at 1ft and the resulting delay would be 29ms in the 1ft channels. I measured once

Again I would think that the largest distance becomes the reference channel for distance and the reference channel would have a delay of 0ms with all the delays being determined against the reference channel.

I guess to me it just seems backwards that setting all channels at 30ft or 15ft would result in different overall delays with the inputs AV delays set to zero.

Originally Posted by ashleyjay2

So now what?

Originally Posted by ben2e

The delay I notice is much worse watching Comcast. Gray's Anatomy seems to have a much longer delay, far more then 40ms. More like 150. So the problem seems at least partially due to the cable signal (or my Tivo S3). Some channels seem worse than others so now I'm just confused.

Originally Posted by snatch

Good to have found this thread. I too experience a delay, and it varies in length for some reason. I have an HR-20 hooked up HDMI to the tv and optical to the receiver (no particular reason). Sometimes when I am watching something that I recorded, I will get a huuge delay. Upwards of 1 second. To fix it, I pause the show, turn the receiver off and back on, and the delay although still there, is reduced dramatically. No idea what would cause this or why turning it off and on mostly fixes it, but it does. This dramatic delay only happens when watching something recorded, and even then it isn't every time, but it is frequent enough.

The normal delay is usually minor enough, that if I'm not thinking about it, I don't tend to notice. Once the thought creeps in to my head, then I see it everywhere.

You have reached the support/help desk for ONKYO Europe. For the great sound performance in 7.1 constellation the receiver needs this kind of "DSP" structure. Regarding to our experience even in this constellation, the audio signal is still faster the the video signal, if the ONKYO receiver is used as a video switcher. If you connect your video signal direct to the screen the audio signal might be delay.

Originally Posted by MonkeyGoD

I have lived with my 805 for about 4 months and have decided to keep it based on its performance. The lip sync is a big issue for me, but not enough to outweigh the positives.

However, unlike most people on this thread, this is a non-issue for me for video and tv since I do not notice any delay after maximizing my speaker distances in the setings. The big issue for me is when playing certain games such as Guitar Hero becuase it actually hampers the gameplay. Also I want to eventually use my receiver for karaoke as well, which is also severly hampered by the delay.

To solve this lipsync problem *completely*, I've decided to invest in an external DD/DTS decoder such as the one released by Technics, or if I am lucky enough, find a Creative DDTS-100 at a reasonable price. I will then plug my xbox360 and PS3 to this external decoder which is hooked directly to the MultiCh analog inputs on the Onkyo. This will (in theory) completely eliminate the lipsync problem, but you do lose all the audio processing power of the Onkyo 805 if you go this route. In this way, the Onkyo will only act as a dummy amplifier.

Onkyo TX-SR605 Firmware Update

September 20 2007: It has recently come to Onkyo's attention that there is a minor error in Firmware on a limited number of the first batch of TX-SR605's
This Firmware error does not impede the working or performance of the unit in any way but, in the future, may cause a playback issue for some owners.
Because of the Firmware error a small number of units may have difficulty decoding Dolby True HD Bitstreams correctly. There is currently no source hardware on the market capable of generating a Dolby True HD Bitstream for the TX-SR605 to decode but there will be in the near future.
For those owners who have no intention of using HD-DVD or Blue-Ray this issue will be irrelevant but owners who are keen to enjoy the new HD audio formats (when suitable source hardware arrives) will need to apply a simple Firmware update to their receivers.
No other models in the 2007 Onkyo range are affected and all TX-SR605s currently with UK retailers have already been updated.
TX-SR605 owners who wish to establish whether their receiver needs a Firmware update should go to www.onkyo.co.uk where they'll find a serial number checker.

HOW TO UPDATE THE TX-SR605
The Firmware update only takes 16 seconds to do and is carried out using a disc (which we will supply) and a CD player equipped with a digital optical output. There are three different ways of implementing the update:-
A] If you own a suitable CD player we can ship out a CD with instructions to you, so that you can update the receiver yourself (remember it only takes 16 seconds). Alternatively it can be sent via email (please email onkyo@onkyo.co.uk with 605 update disc' in the subject line AND PLEASE INCLUDE YOR SERIAL NUMBER ) and burnt/finalised as an audio CD on a CD-R disc.
Here's what you do
1) Connect the CD-Player's optical digital output to Optical Input 1 of the TX-SR605
2) Select «CD» at the receiver and change the input to Optical 1 by pushing the button marked « Digital Input »
3) Switch the receiver into Firmware writing' mode:
a) Push «Standby » key while holding «Display » key
b) Push «Tone +»key several times until you see « DSPSR605:XXXXX »
c) Now push « CD ». In the display you will see the message: S/PDIF UPDATE
4) Now start the CD Player. After 15 sec the display will change to WRITING. If the display does not show WRITING, play the CD again.
NOTE: The vast majority of CD players with optical output will work fine but some players modify the data held on the disc so may not work correctly. In that case please try another CD player. If that's not possible please use Update options B] or C].
5) When writing is finished «Clear »will come up at the display and the receiver will automatically switch to Standby mode.
6) Check the device to establish if it is outputting sound. Select either a digital or analogue input signal in combination with a DSP mode.
You can confirm that the DSP Firmware version has changed by:-
1. Pushing «Standby » key while holding «Display » key
2. Push «Tone +» key several times until you see « DSPSR605:XXXXX ». It should now read « 07727A ». Push « Standby » to leave this mode
3. Note - if the Firmware version number is not displayed and you see « ?????? » on the display you will first need to reset the receiver by pressing « VCR/DVR » + «Standby »
B] If you can't or don't wish to update the receiver yourself you can contact the dealer that you purchased it from and let them carry out the update for you (you will have to take it in to the store).
C] Onkyo will collect it from a pre-arranged address, update the Firmware for you and then return it to you. Bear in mind that because the receiver will have to be shipped to and from Onkyo you may be without use of your receiver for a period of time.
I suspect that most TX-SR605 owners on the forums will take option A] because of the speed of implementation and ease of installation but the choice is theirs.
Unfortunately owners who have purchased their products outside of the UK will have to contact their overseas supplier to make arrangements.
ONKYO UK

If, as the Onkyo techies seem to be saying, the problem arises from the fact that they have to use multiple, cascaded DSPs, does this mean that the audio signal may be distorted by such circuitry? In other words, is distortion (though slight) from the first DSP added to distortion from the second, and then to that from the third? I ask the question because audio quality for the overall system is of some importance to me.

Originally Posted by manofsteele

I don't believe firmware can fix this issue. The problem is with the DSPs. they have a built in delay and that cannot be fixed without re-engineering.