Mailing List Archive

On 27/06/2021 15:27, Mike Perkins wrote:
> I discovered yesterday that I have my own scheduling curiosity.
>
> I cusomarily record the Tour de France, which is broadcast on ITV4,
> usually channel 24. Yesterday I had the option of watching it live and
> discovered that channel 24 was "not available"; looked in the EPG and
> found it had moved to 25.
>
> This morning it occurred to me to find out what I had actually recorded
> on 24 yesterday. What I found was a low-bitrate broadcast of the Tour,
> exactly as I had watched, but with one oddity: The only sound was
> ambient. That is, I had the motorbike noise, crowds, even the two major
> crashes, but no commentary. Oddly this even extended to the adverts!
> Perfect high-quality adverts /with music/ but no voices!
>
> Now about to do a rescan existing channels :(

I use only one DVB-T/T2 transmitter, and I'm running master. Scans today
still have ITV4 as channel 24; but there were two "new" channels whose
LogicalChannelNumbers were already in use, and I accepted the suggestion
to renumber them with an "A" suffix.

I now have 3 like that: Sky Arts 11A, Shopping Quarter 72A, and That's
TV Gold 91A. IIRC Freeview did a block shift of numbers a few months
ago; something about getting BBC FOUR into a default package of channels.

I usually scan with the 'all known transports' option, and I might well
get a different set of numbers from a 'full scan' or a new 'video
source'. All a result of attempts by different agencies to provide
'stability' when its definition isn't unique.

John P

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On Sun, 27 Jun 2021 15:27:49 +0100, you wrote:

>I discovered yesterday that I have my own scheduling curiosity.
>
>I cusomarily record the Tour de France, which is broadcast on ITV4, usually channel 24. Yesterday I
>had the option of watching it live and discovered that channel 24 was "not available"; looked in the
>EPG and found it had moved to 25.
>
>This morning it occurred to me to find out what I had actually recorded on 24 yesterday. What I
>found was a low-bitrate broadcast of the Tour, exactly as I had watched, but with one oddity: The
>only sound was ambient. That is, I had the motorbike noise, crowds, even the two major crashes, but
>no commentary. Oddly this even extended to the adverts! Perfect high-quality adverts /with music/
>but no voices!
>
>Now about to do a rescan existing channels :(

There may be other audio channels with the normal sound - see if
M(enu) > Audio has a "Select audio track" option, which is present
whenever there is more than one audio track in a recording file.
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On 28/06/2021 05:25, Stephen Worthington wrote:
> On Sun, 27 Jun 2021 15:27:49 +0100, you wrote:
>
>> I discovered yesterday that I have my own scheduling curiosity.
>>
>> I cusomarily record the Tour de France, which is broadcast on ITV4, usually channel 24. Yesterday I
>> had the option of watching it live and discovered that channel 24 was "not available"; looked in the
>> EPG and found it had moved to 25.
>>
>> This morning it occurred to me to find out what I had actually recorded on 24 yesterday. What I
>> found was a low-bitrate broadcast of the Tour, exactly as I had watched, but with one oddity: The
>> only sound was ambient. That is, I had the motorbike noise, crowds, even the two major crashes, but
>> no commentary. Oddly this even extended to the adverts! Perfect high-quality adverts /with music/
>> but no voices!
>>
>> Now about to do a rescan existing channels :(
>
> There may be other audio channels with the normal sound - see if
> M(enu) > Audio has a "Select audio track" option, which is present
> whenever there is more than one audio track in a recording file.

Yes. This might be related to (fixed) issue #351, where the new code
follows stream changes instead of sticking with the structure it first
thought of.

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On 28/06/2021 08:56, John Pilkington wrote:
> On 28/06/2021 05:25, Stephen Worthington wrote:
>> On Sun, 27 Jun 2021 15:27:49 +0100, you wrote:
>>
>>> I discovered yesterday that I have my own scheduling curiosity.
>>>
>>> I cusomarily record the Tour de France, which is broadcast on ITV4, usually channel 24. Yesterday I
>>> had the option of watching it live and discovered that channel 24 was "not available"; looked in the
>>> EPG and found it had moved to 25.
>>>
>>> This morning it occurred to me to find out what I had actually recorded on 24 yesterday. What I
>>> found was a low-bitrate broadcast of the Tour, exactly as I had watched, but with one oddity: The
>>> only sound was ambient. That is, I had the motorbike noise, crowds, even the two major crashes, but
>>> no commentary. Oddly this even extended to the adverts! Perfect high-quality adverts /with music/
>>> but no voices!
>>>
>>> Now about to do a rescan existing channels :(
>>
>> There may be other audio channels with the normal sound - see if
>> M(enu) > Audio has a "Select audio track" option, which is present
>> whenever there is more than one audio track in a recording file.
>
> Yes.  This might be related to (fixed) issue #351, where the new code follows stream changes instead
> of sticking with the structure it first thought of.
>
Thank you. I'm still on v30 but I'll take a look. I have suspicions that a recent OS update (Debian
Buster) may have scrambled my audio configurations.

I have no time at present to organize an upgrade to v31. What isn't broken, etc.

Listening to the crowd was somewhat spooky, though.

--

Mike Perkins

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On 28/06/2021 09:32, Mike Perkins wrote:
> On 28/06/2021 08:56, John Pilkington wrote:
>> On 28/06/2021 05:25, Stephen Worthington wrote:
>>> On Sun, 27 Jun 2021 15:27:49 +0100, you wrote:
>>>
>>>> I discovered yesterday that I have my own scheduling curiosity.
>>>>
>>>> I cusomarily record the Tour de France, which is broadcast on ITV4,
>>>> usually channel 24. Yesterday I
>>>> had the option of watching it live and discovered that channel 24
>>>> was "not available"; looked in the
>>>> EPG and found it had moved to 25.
>>>>
>>>> This morning it occurred to me to find out what I had actually
>>>> recorded on 24 yesterday. What I
>>>> found was a low-bitrate broadcast of the Tour, exactly as I had
>>>> watched, but with one oddity: The
>>>> only sound was ambient. That is, I had the motorbike noise, crowds,
>>>> even the two major crashes, but
>>>> no commentary. Oddly this even extended to the adverts! Perfect
>>>> high-quality adverts /with music/
>>>> but no voices!
>>>>
>>>> Now about to do a rescan existing channels :(
>>>
>>> There may be other audio channels with the normal sound - see if
>>> M(enu) > Audio has a "Select audio track" option, which is present
>>> whenever there is more than one audio track in a recording file.
>>
>> Yes.  This might be related to (fixed) issue #351, where the new code
>> follows stream changes instead of sticking with the structure it first
>> thought of.
>>
> Thank you. I'm still on v30 but I'll take a look. I have suspicions that
> a recent OS update (Debian Buster) may have scrambled my audio
> configurations.
>
> I have no time at present to organize an upgrade to v31. What isn't
> broken, etc.
>
> Listening to the crowd was somewhat spooky, though.

FWIW I recorded the 'Highlights - Stage Two' on ITV (SD) this morning.
Two audio channels, with commentary on 'normal' and the audio
description channel silent. Maybe HD was different - or a glitch has
been sorted.

{{{

Input #0, mpegts, from '/mnt/dat1/RSG2/10003_20210628021300.ts':
Duration: 00:55:58.47, start: 93858.656267, bitrate: 2976 kb/s
Stream #0:0[0x6a5]: Video: mpeg2video (Main), yuv420p(tv,
progressive), 720x576 [SAR 64:45 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
Side data:
cpb: bitrate max/min/avg: 15000000/0/0 buffer size: 1835008
vbv_delay: N/A
Stream #0:1[0x6a6](eng): Audio: mp2, 48000 Hz, stereo, fltp, 192 kb/s
Stream #0:2[0x6a7](eng): Audio: mp2, 48000 Hz, mono, fltp, 64 kb/s

}}}

John P









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