On 06/03/2008, Steve Jolly <[EMAIL PROTECTED]> wrote: > > Christopher Woods wrote: > >> Can you give an exact channel, date and time when you > >> observed the phenomenon? (03:59 GMT last night on N24, perhaps?) > > > > Definitely. Observable on BBC2 last night/this morning (05/03/2008) > during > > the intro for "Spin" (03:44am). Also observable during the 60second > > countdown buffer for N24 top of the hour (4am). I can send MPEG2 files > if > > you want (direct streamrip, advantage of having USB DTV receiver). > > I have access to DTT stream recordings. :-) I took a look at the N24 > music you mentioned. Listening to it, there's a very clear difference > in the stereo characteristic of the sound between the (virtually mono) > talking head segments on either side of the music, and a lesser > difference between the music at the end of the special report and the > N24 countdown in question.
I'm using a Vista Media Center with a double DTT card, and no matter which card I use this always happens: http://www.youtube.com/watch?v=hZr-588a5A8 There's a glitch at -27:00 - and the thing is that it's there every hour. It matters not which DVB card I use (I've used Black Gold, a generic one and the Hauupagge one I use now). I've never complained about it because it doesn't happen on standard Freeview boxes. The wierd this is that when I record it and covert it to MPEG to put on YouTube, it's there. The sequence has changed many times and every time it does the audio and video corrupt at -27:00. Wired that. Also, can we have the stereo back on News 24. The music is great, but you can't hear it properly. I've got a fully digital-to-the-amp thing going on with studio monitor speakers... I want to hear David Lowe. Converting the stereo to mid/side encoding and listening to the new > channels separately, the side channel contains virtually no LF > component, whereas the mid-channel contains plenty - you'd expect them > to contain roughly the same amount if the signal had been subjected to a > 90 degree phase offset, and you'd expect all the low frequencies to be > concentrated in the side channel in the case of a 180 degree phase > inversion. Perhaps it could be bad decoding of the mono sound? So at the moment, I don't see any evidence for an overall phase error, > I'm afraid - at least for the one section of audio I've had a look at. > :-) The difference in the characteristic of the sound that I can hear > could simply be due to the transition between dead-centre mono speech > and a very complex bit of music with a broad sound stage. > > S > > - > Sent via the backstage.bbc.co.uk discussion group. To unsubscribe, please > visit http://backstage.bbc.co.uk/archives/2005/01/mailing_list.html. > Unofficial > list archive: http://www.mail-archive.com/[email protected]/ > -- Please email me back if you need any more help. Brian Butterworth http://www.ukfree.tv
