RE: DAB RIP?

Author
Discussion

TheInternet

4,718 posts

164 months

Tuesday 1st September 2020
quotequote all
tobinen said:
However UK DAB is a pretty poor service.
As mentioned above the overall capacity is governed by the regulators, thereafter the sound quality is broadly a commercial decision.

tobinen

9,231 posts

146 months

Tuesday 1st September 2020
quotequote all
Yes, I understand that and I agree.

Alucidnation

16,810 posts

171 months

Tuesday 1st September 2020
quotequote all
As said, a lot of the reception problems are down to the manufacturers of the receivers, and i would almost say i have proof.

I have just swapped our fleet of VW caddy vans for Transit Connects.

Whenever i go out to one of my sites, i always travel the same 3 miles before reaching main roads.

In the Caddy, DAB reception worked perfectly, but in the Fords on the same local station, signal constantly drops in and out until i get nearer the town.

The Caddy had no visible aerial, as it was buried in the door mirror housing, and the Ford has an aerial on the roof.

James-m5qjf

1,488 posts

48 months

Tuesday 1st September 2020
quotequote all
Game changer for me, very rarely have signal issues - I use it the length and breadth of the UK. It’s provided so much more choice and far better audio quality.

Surprised to read that so many people have problems, I guess it's poor hardware.

Edited by James-m5qjf on Tuesday 1st September 07:33

RammyMP

6,784 posts

154 months

Tuesday 1st September 2020
quotequote all
The wife had an Evoque, the DAB radio was piss poor and kept dropping out, my car generally gets a good signal.

The radio performed better in my 2016 Audi A5 than what it In my 2012 A5, when the DAB dropped out it switched to FM, there was a delay in the older car, the newer car was seamless.

psi310398

9,112 posts

204 months

Tuesday 1st September 2020
quotequote all
Reception issues might be hardware- (or probably more exactly antenna-) related but DAB sound quality is a serious problem for me.

I grant it is entirely subjective, but I have a (very expensive) Naim DAB Tuner as part of my set up - it is rarely used as the sound sets my teeth on edge, especially on voice. The same is true of my cheap as chips Morrison's portable DAB radio, but at least that has FM for me to retune to whenever possible.

Knoxville2410

291 posts

60 months

Tuesday 1st September 2020
quotequote all
I love it. My car (2013 320d) also has Bluetooth phone connectivity etc, yet I find myself listening to DAB. So much choice to pick from and always good music playing.

Never really seem to have many signal issues unless I drive through the occasional blackspot.

GC8

19,910 posts

191 months

Tuesday 1st September 2020
quotequote all
With regular DAB the lowest acceptable bitrate is 192kbps (and really that is 256kbps, down to 224kbps in some circumstances - the 192kbps figure is joint stereo with detectable imperfections!) rate and even Radio 3 only get 160kbps.

DAB is poor and DAB+ isnt much better - they use a superior codec and then lower the bitrate so it sounds as crap as it did before.

TheInternet

4,718 posts

164 months

Tuesday 1st September 2020
quotequote all
psi310398 said:
Naim DAB Tuner
The only way to get hi-fi radio at home is to stream it; the notion of a hi-fi DAB radio is an oxymoron.

TheInternet

4,718 posts

164 months

Tuesday 1st September 2020
quotequote all
GC8 said:
DAB is poor and DAB+ isnt much better - they use a superior codec and then lower the bitrate so it sounds as crap as it did before.
Guess what - they lower it to the lowest acceptable bitrate.

TonyRPH

12,977 posts

169 months

Tuesday 1st September 2020
quotequote all
TheInternet said:
psi310398 said:
Naim DAB Tuner
The only way to get hi-fi radio at home is to stream it; the notion of a hi-fi DAB radio is an oxymoron.
It is - with a much broader selection too.

But DAB was originally sold on the premise of better sound quality than FM and more choice, and that simply never materialised (with perhaps the exception of Radio 4 which still wasn't that good). Sure, we do have more choice, but most of it is broadcast at abysmal bit rates and much of it even in mono.

It's become clear that it was never intended to provide improve sound quality.

The reality is that when DAB was being introduced, the tag line should really have been;

"We are promoting this radio service which will enable us to squeeze more channels than ever into even less of the radio spectrum. Sound quality is not guaranteed".

Because after all, this is the reality.


loudlashadjuster

5,130 posts

185 months

Tuesday 1st September 2020
quotequote all
TheInternet said:
psi310398 said:
Naim DAB Tuner
The only way to get hi-fi radio at home is to stream it; the notion of a hi-fi DAB radio is an oxymoron.
A good FM tuner and a proper external aerial provides a perfectly good source. The same cannot be said of DAB with the bitrates currently used though, completely agree.

heisthegaffer

3,420 posts

199 months

Tuesday 1st September 2020
quotequote all
The DAB in our V40 is brilliant with only the odd service drop out from time to time.

bristolracer

5,542 posts

150 months

Tuesday 1st September 2020
quotequote all
psi310398 said:
Reception issues might be hardware- (or probably more exactly antenna-) related but DAB sound quality is a serious problem for me.

I grant it is entirely subjective, but I have a (very expensive) Naim DAB Tuner as part of my set up - it is rarely used as the sound sets my teeth on edge, especially on voice. The same is true of my cheap as chips Morrison's portable DAB radio, but at least that has FM for me to retune to whenever possible.
Yes the aerial is key to good reception. The reason all car radios have aerials is because the car acts as a big Faraday cage. Some car makers do it better than others.

Sadly the poor bit rates of DAB will never do your Naim system any justice. You may as well plug in an Alba £15 childs mp3 player for all the good it will do. GIGO, garbage in,garbage out.


motco

15,964 posts

247 months

Tuesday 1st September 2020
quotequote all
TheInternet said:
psi310398 said:
Naim DAB Tuner
The only way to get hi-fi radio at home is to stream it; the notion of a hi-fi DAB radio is an oxymoron.
FM was always pretty good if you had a decent signal, but my old ReVox tuner has a problem now so I can't vouch for it lately.

GC8

19,910 posts

191 months

Tuesday 1st September 2020
quotequote all
TheInternet said:
The only way to get hi-fi radio at home is to stream it; the notion of a hi-fi DAB radio is an oxymoron.
You should spend a while reading up on the iPlayer and now BBC Sounds bitrates. 4 out of 5 available profiles are crap! Only profile #1 is anything like reasonable at 320kbps. The others are 128kbps, 96kbps and 48kbps!

bungz

1,960 posts

121 months

Tuesday 1st September 2020
quotequote all
Alucidnation said:
As said, a lot of the reception problems are down to the manufacturers of the receivers, and i would almost say i have proof.

I have just swapped our fleet of VW caddy vans for Transit Connects.

Whenever i go out to one of my sites, i always travel the same 3 miles before reaching main roads.

In the Caddy, DAB reception worked perfectly, but in the Fords on the same local station, signal constantly drops in and out until i get nearer the town.

The Caddy had no visible aerial, as it was buried in the door mirror housing, and the Ford has an aerial on the roof.
Would agree with this.

However my last OEM DAB experience was with a Golf with the hidden aerial, useless for DAB absolutely rubbish.

My old shed with a amazon special DAB aerial drilled into the roof i don't think I had a single DAB drop out of any kind in 3 years with a boggo sony head unit. Was absolutely wonderful.

Don't know why manufacturers complicate things for the sake of losing the aerial.

TonyRPH

12,977 posts

169 months

Tuesday 1st September 2020
quotequote all
GC8 said:
You should spend a while reading up on the iPlayer and now BBC Sounds bitrates. 4 out of 5 available profiles are crap! Only profile #1 is anything like reasonable at 320kbps. The others are 128kbps, 96kbps and 48kbps!
The BBC actually have a series of HLS streams which are actually quite high quality.

https://www.bbc.co.uk/sounds/help/questions/suppor...



Edited by TonyRPH on Tuesday 1st September 09:48

TheInternet

4,718 posts

164 months

Tuesday 1st September 2020
quotequote all
bungz said:
Don't know why manufacturers complicate things for the sake of losing the aerial.
Styling sells cars, DAB reception doesn't.

GC8

19,910 posts

191 months

Tuesday 1st September 2020
quotequote all
TonyRPH said:
GC8 said:
You should spend a while reading up on the iPlayer and now BBC Sounds bitrates. 4 out of 5 available profiles are crap! Only profile #1 is anything like reasonable at 320kbps. The others are 128kbps, 96kbps and 48kbps!
The BBC actually have a series of HLS streams which are actually quite high quality.

https://www.bbc.co.uk/sounds/help/questions/suppor...



Edited by TonyRPH on Tuesday 1st September 09:48
Only the 2a profile is MP3, but 128kbps of anything will not be very good. I am still looking at similar pages to the one that you have linked to, trying to establish which channels are available with which profiles, or whether the profile selected depends on the device that youre using, rather than the channel selected.

I was under the impression that it was the latter, but Im hoping to find confirmation that it is the former...