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Originally Posted by Swipe
I'm a bit baffled by this and I'm sure there'll be someone on here who will be able to explain this. I am in an ex-cwc area and have a PACE 2000 box connected to my TV via scart. I am confused as to why the stereo audio quality is far superior on terrestrial channels (via aerial on the roof) than through my STB. When I switch to say BBC1 on terrestrial I get an On Screen Display (OSD) telling me that the audio is Nicam Stereo, however when I switch to AV1 (cable) I get no OSD. The audio setup on my TV is set to Dolby Pro Logic.
So if terrestrial audio is broadcast in Nicam Stereo what kind of stereo is broadcast via NTL on the PACE 2000 box? Whatever it is it's inferior to terrestrial. Is there a specific setting which I can set my TV to in its audio setup to obtain a better sound, as I stated its set to Dolby Pro Logic at present. Other audio effects options I have are Dolby 3 Stereo, Pro Logic Phantom, Panorama, Pseudo Surround and off.
I await your feedback  |
By quality, what do you mean? Clarity, better stereo separation, broader bandwidth? If you are getting noise on the NTL audio, you need to find out if it is the output from the STB, the cable or the SCART input on the TV which is at fault. My STB's audio volume is noticeably lower than terrestrial, consequently the TV volume has to be raised, and this tends to amplify some noise on some programmes (slight hiss when the audio is quiet).
Nicam is the encoding used to send stereo audio over the standard analogue terrestrial broadcast system (UHF). NTL Digital doesn't need to use Nicam. I'm not sure how the encoding of audio and video works but it's in the digital domain, and the STB decodes, and separates it. The signals are then separate when presented to your TV via the SCART connection.
I remember that the old CWC analogue STB used to encode the stereo audio using Nicam as it used to connect to the TV via the aerial RF lead (it had no other connection!), but I now have a Pace 4000i (digital) and this definitely does not do this with its RF output (standard Mono I'm afraid
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Dolby Pro Logic endoding should survive the transmission and decoding process, so should be present in programmes which are transmitted using Dolby both in Nicam and through NTL Digital.