ARCHIVED FORUM -- March 2012 to February 2022READ ONLY FORUM
This is the second Archived Forum which was active between 1st March 2012 and 23rd February 2022
Last year there was a lot of forum discussion about the delay box for sorting out sound echoes on link room speakers etc. My issue is slightly different.
I previously had a BV 6-23 link TV driven from a BV5 via Masterlink. The link TV was in the kitchen, but the dining room was within hearing distance of both TV's. Because, I assume, of slightly different processing circuitry there was always a very small echo between the two TV's, but it was close enough to be tolerated.
The BV5 has now been relocated and its position taken by the BV11. The kitchen BV 6-23 is about to acquire its own STB and will in future run as a stand alone. If, as I expect, there is a noticeable difference between the BV11 and BV6 sound, is there a very simple way of delaying the aerial input signal to one or other of the TV's to compensate for the different processing rates and resulting echo?
Graham
The 6-23 now has its own STB, and amazingly, the processing time is so close to the BV11 that there is only the very smallest of echo, and if one tv is turned right down the sound delay is not even enough to make you think that there is a lip sync problem.
But... there is an echo. Isn't there a way of adjusting the signal reception by a few nano seconds delay to one or other TV to eliminate the echo altogether?
Probably there is is a way of adjusting that with professional equipment.
But I am not aware of anything in the consumer sector, that could do that?
I experience that/echo too when watching tv on the Mac with a usb-dongle tuner, and my son (in a room nearby) is watching the same program.
MM
There is a tv - and there is a BV
vikinger:But... there is an echo. Isn't there a way of adjusting the signal reception by a few nano seconds delay to one or other TV to eliminate the echo altogether?
Just add 200 meters of antenna cable for each microsecond you need!
...and that would be many. A microsecond delay in audio is equivalent to moving the offending speaker 0.33 millimeters further away.
I don't think it is worthwhile trying to solve this, unless the BV11 has adjustable audio delay (I suppose not). You could add an external audio delay processor between the BV6 and its STB, but that will only help if that is the end that needs more delay! Furthermore, the delay in the DVB decoding might change when the transmitting network changes its encoding parameters.
--mika
vikinger: Last year there was a lot of forum discussion about the delay box for sorting out sound echoes on link room speakers etc. My issue is slightly different. I previously had a BV 6-23 link TV driven from a BV5 via Masterlink. The link TV was in the kitchen, but the dining room was within hearing distance of both TV's. Because, I assume, of slightly different processing circuitry there was always a very small echo between the two TV's, but it was close enough to be tolerated. The BV5 has now been relocated and its position taken by the BV11. The kitchen BV 6-23 is about to acquire its own STB and will in future run as a stand alone. If, as I expect, there is a noticeable difference between the BV11 and BV6 sound, is there a very simple way of delaying the aerial input signal to one or other of the TV's to compensate for the different processing rates and resulting echo? Graham
Hi,
if your Bv6 is that with sound "first" and its not much delay you maybe can tweaking with speaker distance in bv11 menu (more distance then bv11 adjust delay down)
tompa: Hi, if your Bv6 is that with sound "first" and its not much delay you maybe can tweaking with speaker distance in bv11 menu (more distance then bv11 adjust delay down)
That's a really interesting idea! I'll give it a try later in the week when I'm not interrupting family viewing.
I've decided to live with the very small echo for the moment.
The issue is further complicated if viewing in HD on the BV11 because the broadcast or processing time seems to be completely different from the SD processing, so there will always be a mismatch if viewing in HD on the main TV.