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Topic: 1.FM has an amazing sound, what DSP do you think they're using? (Read 800 times) previous topic - next topic
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1.FM has an amazing sound, what DSP do you think they're using?

I've been listening to this online radio: http://sc-classrock.1.fm:8200/

I really like how all of the songs sound really good. All the details are heard and I can't notice any distrortion or other unwanted effects with the DSP they're using. This is true for low frequency sounds (bass, drums) and for high frequency sounds (cymbals), and everything else too, really. With some of the songs I can hear details that I never heard before and I know those songs very well.
To test, that it's not a placebo or just in my mind, I did an ABX test. I ripped the song "Pearl Jam - Daughter", when they've played it and then compared it to my 320 kbps mp3 rip. They're using 320 kbps mp3 too, BTW.
Results:
foo_abx 1.3.4 report
foobar2000 v1.3.5
2018/08/12 21:06:10

File A: C:\Users\psycho\Downloads\rip.mp4
File B: E:\mp3\p\Pearl Jam\1993 - Vs\Pearl Jam - 03 - Daughter.mp3

21:06:10 : Test started.
21:06:49 : 01/01  50.0%
21:06:59 : 02/02  25.0%
21:07:05 : 03/03  12.5%
21:07:11 : 04/04  6.3%
21:07:20 : 05/05  3.1%
21:07:26 : 06/06  1.6%
21:07:31 : 07/07  0.8%
21:07:36 : 08/08  0.4%
21:07:53 : 09/09  0.2%
21:08:08 : Test finished.

 ----------
Total: 9/9 (0.2%)

Don't let the filename fool you. It's mp4 only as a container, inside there's an mp3. I used VLC to rip the stream, of course with no transcoding, but by default it used mp4 for the container.

So, I am interested if anyone will take the time and tell me your opinion of what DPS they might be using. Whatever it is, it is good for soft rock songs as well as some of the most heavy ones. A universial solution it would seem, at least to me.

My guess is, they're applying some dynamic range compression, and maybe some EQ with that. But they must've tuned it to perfection for rock/metal music.

Anyway, looking forward to other opinions.
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Re: 1.FM has an amazing sound, what DSP do you think they're using?

Reply #1
Quote
Whatever it is, it is good for soft rock songs as well as some of the most heavy ones. A universial solution it would seem, at least to me.
You are implying that there's something wrong with the original recordings.  ;)

Re: 1.FM has an amazing sound, what DSP do you think they're using?

Reply #2
DVDdoug, that's not what I tried to say.  ;)
It's just that I really like how everything sounds on this stream and up until now I haven't come across a DSP that wouldn't ruin the sound in some way. This one only seems to have positive effect for my ears.
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Re: 1.FM has an amazing sound, what DSP do you think they're using?

Reply #3
Well, they upped high range a bit, as far as I can hear. Other than that, I think there's some multiband compression applied... and the bass is upped a bit. Not much.
EDIT: I just compared... it's U shape, bass and highs are upped, mids are lowered. Also, I think the stereo separation is narrowed a bit.
I've compared the current song, Silent Lucidity.

Re: 1.FM has an amazing sound, what DSP do you think they're using?

Reply #4
hlloyge, very interesting, thank you. I think you got it. Could be that what you describe is just what they do and maybe nothing else. :)
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Re: 1.FM has an amazing sound, what DSP do you think they're using?

Reply #5
Well, they upped high range a bit, as far as I can hear. Other than that, I think there's some multiband compression applied... and the bass is upped a bit. Not much.
EDIT: I just compared... it's U shape, bass and highs are upped, mids are lowered. Also, I think the stereo separation is narrowed a bit.
I've compared the current song, Silent Lucidity.
Sounds a bit like what a guitarist friend of mine calls an "American scoop" on his guitar amp's equaliser.

Re: 1.FM has an amazing sound, what DSP do you think they're using?

Reply #6
Do you think something like what they use could be done with some of these?
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