I'll let Burson and GP fight it out as to who copied who, but yeah, same comment applies in the absence of hard evidence to the contrary.
I've uploaded a couple of 44.1kHz recordings, with no sample rate conversion. They sound quite a bit better, but still not as accurate as 2496.
Here is the complete list of phonoclone 3 sample files:
1644 .wav:
Handel Concerto recorded at 1644
Nights on Broadway recorded at 1644
Nights on Broadway CD version
2496 FLAC:
Glen Gould : Well-Tempered Klavier
Carpenters : Goodbye to Love
2496 .wav (short samples):
Beegees Sample
Mozart Piano Concerto Sample
I've uploaded a couple of 44.1kHz recordings, with no sample rate conversion. They sound quite a bit better, but still not as accurate as 2496.
Here is the complete list of phonoclone 3 sample files:
1644 .wav:
Handel Concerto recorded at 1644
Nights on Broadway recorded at 1644
Nights on Broadway CD version
2496 FLAC:
Glen Gould : Well-Tempered Klavier
Carpenters : Goodbye to Love
2496 .wav (short samples):
Beegees Sample
Mozart Piano Concerto Sample
Rhysh
I just put my name down for a couple of the GB boards.
Question.
What causes hiss?
Is it a ground issue?
Or something else?
Brett.
I just put my name down for a couple of the GB boards.
Question.
What causes hiss?
Is it a ground issue?
Or something else?
Brett.
Re: Rhysh
Typically dirt or other imperfections in the record groove.
Or, if you are talking the background hiss heard with no record playing, it's the self-noise generated by the electronics, mostly by the OP27 residing in IC1.
enzedone said:
Typically dirt or other imperfections in the record groove.
Or, if you are talking the background hiss heard with no record playing, it's the self-noise generated by the electronics, mostly by the OP27 residing in IC1.
RJM,
what hardware do you use for recording?
There is something mightly weird around 32kHz in the short
Beegees sample. And no, not referring to the Gibb phenomenon.😀
what hardware do you use for recording?
There is something mightly weird around 32kHz in the short
Beegees sample. And no, not referring to the Gibb phenomenon.😀
Thanks
Sorry, bad description. It's from a board I have just completed and placed into a case (my pre-amp)
It uses two dual opamps.(project 06 Rod Elliott)
I thought it could be my poor wiring or something.
That's why I want to try this one, but I might have to put it into a separate case, which is what I didn't want to do........but.
Sorry, bad description. It's from a board I have just completed and placed into a case (my pre-amp)
It uses two dual opamps.(project 06 Rod Elliott)
I thought it could be my poor wiring or something.
That's why I want to try this one, but I might have to put it into a separate case, which is what I didn't want to do........but.
Not the notch per se, but rather the impression
that the signal contents above and below the notch
seem to be each other's image. As if the signal
was sampled in the most lousy way at 64kHz!
that the signal contents above and below the notch
seem to be each other's image. As if the signal
was sampled in the most lousy way at 64kHz!
Werner said:
Sheesh, will I ever get it right?
Reinstalled the drivers, and double checked all the settings. It looks like the line input sample rate might have been something other than 96 kHz at some point in the pipeline, as with every setting I can find now set to 96 kHz, the results appear correct. I did a loopback test with test tones at 1kHz and 30kHz, both were reproduced correctly. I also used the test tones to determine the unity gain input volume setting, so the data below is the correct scale now for the phonoclone output.
The plots show the noise spectrum for the card with the inputs disconnected, the phonoclone powered up but no record playing, a section of the BeeGees record with no music playing, and finally of Nights on Broadway.
Attachments
The problem turned out to be a bit esoteric:
The VIA Envy24HT controller in the soundcard, and the drivers that go with it, are 192 kHz 24 bit in/out. Onkyo only specifies the soundcard for 96 kHz input, 192 kHz output. I had set the input sampling rate to 96 khz in Audacity, but left the VIA controller at 192 kHz.
The soundcard really doesn't do 192 kHz input sampling even if data can be acquired at that frequency. There are odd peaks and mirror folds due to aliasing errors at 32, 64 and 96 kHz. See the attached plot.
I'm pretty sure the 44.1kHz recordings were ok, but I've deleted everything just to be on the safe side. Here's a new version of Nights on Broadway, 2496 FLAC, recorded at 0dB, so it's at the same volume as you'd hear the phonoclone out directly.
Nights_on_Broadway_new_2496_0dB_FLAC.flac
The VIA Envy24HT controller in the soundcard, and the drivers that go with it, are 192 kHz 24 bit in/out. Onkyo only specifies the soundcard for 96 kHz input, 192 kHz output. I had set the input sampling rate to 96 khz in Audacity, but left the VIA controller at 192 kHz.
The soundcard really doesn't do 192 kHz input sampling even if data can be acquired at that frequency. There are odd peaks and mirror folds due to aliasing errors at 32, 64 and 96 kHz. See the attached plot.
I'm pretty sure the 44.1kHz recordings were ok, but I've deleted everything just to be on the safe side. Here's a new version of Nights on Broadway, 2496 FLAC, recorded at 0dB, so it's at the same volume as you'd hear the phonoclone out directly.
Nights_on_Broadway_new_2496_0dB_FLAC.flac
Attachments
noelectrix said:damned, too late for boards, isn´t it?
stefan
Go on then, put your name down. 😉
Handel Concerto 96khz 3dB sample.wav
Handel Concerto 44khz 3dB.wav
There were problems with the 44.1kHz files, then there were problems with the 96kHz files. I never imagined it would be so complicated!
To the best of my knowledge, the files above are "good".
Handel Concerto 44khz 3dB.wav
There were problems with the 44.1kHz files, then there were problems with the 96kHz files. I never imagined it would be so complicated!
To the best of my knowledge, the files above are "good".
Board size
Would these cases be big enough for your boards?
http://www.computerstore.co.nz/ME-757AWH.aspx
http://www.computerstore.co.nz/RX-3HU-SCS1-GP.aspx
Thanks
Would these cases be big enough for your boards?
http://www.computerstore.co.nz/ME-757AWH.aspx
http://www.computerstore.co.nz/RX-3HU-SCS1-GP.aspx
Thanks