B&W
09-06-15, 22:41
I have noticed there is an existing issue with poor sound quality with my VU+ Duo2 (Genuine) receiver.
Installed tuners are (A) DVB S2 fixed dish 0.8m, (B) DVB S2 1.2m Diseqc and (C) Terrestrial DVB-T2/T/C.
Latest releases of Apollo and Hades exhibited the same audio issue.
I have always performed clean installations no restores and no extra plugins that could potentially interfere.
The problem experienced is the sound quality significantly drops when receiving HD Terrestrial; however satellite HD feeds are not affected.
I will try to describe the difference experienced when using Terrestrial DVB-T2 tuner:-
1) Audio level is attenuated by about 40% when compared like for like on satellite channels
2) Sound is highly compressed equivalent to mp3 audio sounding muffled with limited dynamic range.
3) Every 30-50 seconds there is a low level audible glitch similar to an interruption to the audio D/A convertor data stream.
Other configurable audio formats In VU+ AV audio menus do not change the problem this exist with other selected audio formats, I mainly use PCM audio stream because the Linn Klimax DSM demands it.
Terrestrial DVB signal reception is excellent and is buffered to all other devices .My other receivers for example Panasonic DMR BWT800 connected to Arcam 600 processor has excellent HD Terrestrial audio when compared.
The VU+ receiver HDMI output is connected to the following high end 7.2 surround audio devices but mainly used in 2 channel digital audio mode; Arcam, Linn Klimax DSM, Krell amps in an all B&W series 2x 802D 1x HTM2D 4x 700s and 2x AWE855 15” subs, studio grade components . This installation is therefore revealing the sound quality limitations produced from the VU+ terrestrial T2 tuner.
My reasons and I’m guessing is the VU driver downgrades the audio stream delivered from the VU HD terrestrial tuner for reason unknown but guess it’s something to do with multiple tuners impacting system resources, even though the problem is present when the T2 tuner is the only tuner in use.
As a last resort the newer VU dual T2/C tuner was fitted and tested recently and that was exactly the same.
Has anyone noticed this limitation?
If this is news to you please compare your terrestrial T2 tuner in HD audio with the same HD channel broadcasting on satellite and report your findings.
I would be interested in your feedback with VU+ Duo2 owners fitted with VU T2 tuners.
If this turns out to be forced product limitation by design then this unit will be for sale, I hope that this is a VU driver issue that needs resolution in due course.
B&W
Installed tuners are (A) DVB S2 fixed dish 0.8m, (B) DVB S2 1.2m Diseqc and (C) Terrestrial DVB-T2/T/C.
Latest releases of Apollo and Hades exhibited the same audio issue.
I have always performed clean installations no restores and no extra plugins that could potentially interfere.
The problem experienced is the sound quality significantly drops when receiving HD Terrestrial; however satellite HD feeds are not affected.
I will try to describe the difference experienced when using Terrestrial DVB-T2 tuner:-
1) Audio level is attenuated by about 40% when compared like for like on satellite channels
2) Sound is highly compressed equivalent to mp3 audio sounding muffled with limited dynamic range.
3) Every 30-50 seconds there is a low level audible glitch similar to an interruption to the audio D/A convertor data stream.
Other configurable audio formats In VU+ AV audio menus do not change the problem this exist with other selected audio formats, I mainly use PCM audio stream because the Linn Klimax DSM demands it.
Terrestrial DVB signal reception is excellent and is buffered to all other devices .My other receivers for example Panasonic DMR BWT800 connected to Arcam 600 processor has excellent HD Terrestrial audio when compared.
The VU+ receiver HDMI output is connected to the following high end 7.2 surround audio devices but mainly used in 2 channel digital audio mode; Arcam, Linn Klimax DSM, Krell amps in an all B&W series 2x 802D 1x HTM2D 4x 700s and 2x AWE855 15” subs, studio grade components . This installation is therefore revealing the sound quality limitations produced from the VU+ terrestrial T2 tuner.
My reasons and I’m guessing is the VU driver downgrades the audio stream delivered from the VU HD terrestrial tuner for reason unknown but guess it’s something to do with multiple tuners impacting system resources, even though the problem is present when the T2 tuner is the only tuner in use.
As a last resort the newer VU dual T2/C tuner was fitted and tested recently and that was exactly the same.
Has anyone noticed this limitation?
If this is news to you please compare your terrestrial T2 tuner in HD audio with the same HD channel broadcasting on satellite and report your findings.
I would be interested in your feedback with VU+ Duo2 owners fitted with VU T2 tuners.
If this turns out to be forced product limitation by design then this unit will be for sale, I hope that this is a VU driver issue that needs resolution in due course.
B&W