Search found 28 matches

by hiro
Fri Nov 19, 2010 1:28 pm
Forum: Linux
Topic: cannot disable resampling for ICH6 (OSS4)
Replies: 50
Views: 54850

Re: cannot disable resampling for ICH6 (OSS4)

I hope you're just a troll...
by hiro
Wed Nov 17, 2010 9:08 am
Forum: Linux
Topic: cannot disable resampling for ICH6 (OSS4)
Replies: 50
Views: 54850

Re: cannot disable resampling for ICH6 (OSS4)

If you say your sound is perfect there's of course no need to switch. I bought an external soundcard because none of my onboard soundcards ever satisfied me You could get some nice stuff from RME, Echo, etc. Here you can hear the difference between 16 and 24 bits, because these companies will actual...
by hiro
Thu Nov 04, 2010 12:45 am
Forum: Linux
Topic: cannot disable resampling for ICH6 (OSS4)
Replies: 50
Views: 54850

Re: cannot disable resampling for ICH6 (OSS4)

There is no sure way to test for that hardware SRC. Some SRCs are simply too good to be possibly noticed after DA conversion. Look at these funny guys with high-end oversampling DACs for an example. The sound doesn't get any better, but also doesn't get worse ;) This is no excuse for Alsa's bad line...
by hiro
Mon Oct 11, 2010 9:31 pm
Forum: Linux
Topic: cannot disable resampling for ICH6 (OSS4)
Replies: 50
Views: 54850

Re: cannot disable resampling for ICH6 (OSS4)

I don't know about the man page, the docs or the source code, but here's what works for me:
ossmix vmix0-enable OFF; ossmix vmix0-src OFF

And I directly use the spdif output instead of /dev/pcm. I assume my setup is bit-perfect, sounds like it, too.
by hiro
Wed Oct 06, 2010 11:24 pm
Forum: Linux
Topic: How to enable "production quality with extra precision"?
Replies: 122
Views: 199672

Re: How to enable "production quality with extra precision"?

I took the grc3 results for granted. It doesn't seem trivial to test, so I probably won't. I already told you the reason I haven't tried that resampler: I don't have the source (I don't run random stuff not even knowing where it's coming from). Also, why should I test something nobody would ever use...
by hiro
Wed Oct 06, 2010 7:45 am
Forum: Linux
Topic: How to enable "production quality with extra precision"?
Replies: 122
Views: 199672

Re: How to enable "production quality with extra precision"?

Yeah, it says grc3 is fixed point. According to this site oss production quality creates distortions at about -110db. If you have a good system and ear you should hear it. But only if you listen to very quiet 24bit files! Try out this nice internet radio station: http://radio.cesnet.cz:8000/cro-d-du...
by hiro
Tue Oct 05, 2010 9:17 pm
Forum: Linux
Topic: How to enable "production quality with extra precision"?
Replies: 122
Views: 199672

Re: How to enable "production quality with extra precision"?



Isn't that the same? grc3 is fromm OSS...
by hiro
Tue Oct 05, 2010 9:13 pm
Forum: Linux
Topic: How to enable "production quality with extra precision"?
Replies: 122
Views: 199672

Re: How to enable "production quality with extra precision"?

I've installed a nice scope for my jack. Now I can see and hear 96kHz and 112db dynamic range (loopback cable noise is around 120db). And I don't hear distortions because there aren't any. libsamplerate is "perfect" enough. I would see some kind of artifacts at -120db >20kHz in some mp3s, ...
by hiro
Tue Oct 05, 2010 2:46 pm
Forum: Linux
Topic: How to enable "production quality with extra precision"?
Replies: 122
Views: 199672

Re: How to enable "production quality with extra precision"?

You misunderstood me. As I explained earlier I gave up trying to hear perfection, because I couldn't hear imperfection. Now I'm trying to find out where you hear it... I've checked that tar file and it seems that petrov's resampler is distributed only as a binary. I haven't found any other reference...
by hiro
Tue Oct 05, 2010 2:25 pm
Forum: Linux
Topic: How to enable "production quality with extra precision"?
Replies: 122
Views: 199672

Re: How to enable "production quality with extra precision"?

Do you want to give us more and more truisms, or will you share your actual experiences?
by hiro
Tue Oct 05, 2010 12:06 am
Forum: Linux
Topic: How to enable "production quality with extra precision"?
Replies: 122
Views: 199672

Re: How to enable "production quality with extra precision"?

Well, all my russian friends like my mp3s. Although some don't, in which case they created them 8) I like sharing what I've heard, (it seems to fit into my theoretical understanding of the subject, but I'd still like to verify it). So, what about my question and my request of a screenshot? I'd reall...
by hiro
Mon Oct 04, 2010 9:16 pm
Forum: Linux
Topic: How to enable "production quality with extra precision"?
Replies: 122
Views: 199672

Re: How to enable "production quality with extra precision"?

Strange. If I remember correctly the last src version with any significant distortion was 0.1.2. See: http://src.infinitewave.ca/images/Tone/SRC_BestSinc.png I also use 0.17 and should thus hear exactly the same as you do. Can you show me your bad audacity results perhaps? I don't believe they can b...
by hiro
Sun Oct 03, 2010 10:38 pm
Forum: Linux
Topic: How to enable "production quality with extra precision"?
Replies: 122
Views: 199672

Re: How to enable "production quality with extra precision"?

I tried pianos and strings, but also some electronic music. And I use 320kbit mp3s. I did semi-random blind ab tests and counted my misses. Having done all that, I'm quite satisfied and when I want to improve my system I will have to buy new speakers before anything else. Because I'm quite sure they...
by hiro
Sat Oct 02, 2010 2:21 pm
Forum: Linux
Topic: How to enable "production quality with extra precision"?
Replies: 122
Views: 199672

Re: How to enable "production quality with extra precision"?

Hey, I haven't tried the "exact resampler", because I don't know what it is. Also, not hearing any difference between the original and it's (libsamplerate) resampled version, I doubt my ears are of any value in this test (assuming the exact resampler would be of higher quality)...
by hiro
Sat Oct 02, 2010 1:44 am
Forum: Linux
Topic: How to enable "production quality with extra precision"?
Replies: 122
Views: 199672

Re: How to enable "production quality with extra precision"?

I do not think that it is a good idea to mix everything together, for it may lead to a further confusion. Yeah, the complexity of the sound systems and our hearing makes it very difficult to decide where to start when you want to improve that sound system. Without a lot of experience or knowledge a...

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