Can you import a Frequency compensation file ( .xls ?) into Clio Pocket to measure a RIAA preamp ?...To show it as an error plot.
The Meter function has a filter A and C . Maybe they could include a RIAA filter also ?
The other location is the Math function. But it only accepts .cpr files ( Chirp format ). Is that just the same as an Excel file but with a changed extension ? Also I'm not sure how exactly this works. maybe they should include some sample files for all functions so that one can understand them more easily.
You can do this easily in Arta by saving the compensation file under 'FR Compensation'. You need to rename the file extension to .mic
Does anyone know how to get around this problem in the Clio Pocket?
Thanks.
The Meter function has a filter A and C . Maybe they could include a RIAA filter also ?
The other location is the Math function. But it only accepts .cpr files ( Chirp format ). Is that just the same as an Excel file but with a changed extension ? Also I'm not sure how exactly this works. maybe they should include some sample files for all functions so that one can understand them more easily.
You can do this easily in Arta by saving the compensation file under 'FR Compensation'. You need to rename the file extension to .mic
Does anyone know how to get around this problem in the Clio Pocket?
Thanks.
Unfortunately no !
I haven't looked at it but I read somewhere that you could import Clio Pocket files into REW . Maybe it can be manipulated there ? No time right now to look at that. But maybe I should do that.
You can do the RIAA correction in Clio12 !
I haven't looked at it but I read somewhere that you could import Clio Pocket files into REW . Maybe it can be manipulated there ? No time right now to look at that. But maybe I should do that.
You can do the RIAA correction in Clio12 !
Found something...easier than expected...
In General Control select a downloaded inverted RIAA Noise file and use the FFT to measure.
Only limitation here seems to be the very limited resolution in the rather low level low frequencies...but from a couple of hundred Hz to 20kHz you can adjust the RIAA section during the live measurement on CLIO
What I need now is a frequency sweep WAV of an inverted RIAA level...
Anyone knows where to download this?
In General Control select a downloaded inverted RIAA Noise file and use the FFT to measure.
Only limitation here seems to be the very limited resolution in the rather low level low frequencies...but from a couple of hundred Hz to 20kHz you can adjust the RIAA section during the live measurement on CLIO
What I need now is a frequency sweep WAV of an inverted RIAA level...
Anyone knows where to download this?
Hi both
I have just created you some. Its 24 Bit WAV-PCM wit impulse response of inverted RIAA for your calculation. Problem is rather that you have not only "the one RIAA" but several standards that evolved over the decades in the west. Actually 5. So I packed all with an index, you will see.
RIAA_DEM.zip beim Filehorst - filehorst.de
Theres also digital de-emphasis. Its a german host, wait for the countdown, then the link appears. Hope it works, didnt use that host much...
cheers
Josh
I have just created you some. Its 24 Bit WAV-PCM wit impulse response of inverted RIAA for your calculation. Problem is rather that you have not only "the one RIAA" but several standards that evolved over the decades in the west. Actually 5. So I packed all with an index, you will see.
RIAA_DEM.zip beim Filehorst - filehorst.de
Theres also digital de-emphasis. Its a german host, wait for the countdown, then the link appears. Hope it works, didnt use that host much...
cheers
Josh
Hi Josh, this is what makes a good forum! Great action. I will check and see how well it works with CLIO. Having a reliable INVRIAA signal file always has my preference compared to the INVRIAA hardware with it's limited accuracy.
The measurements I did yesterday were basically a CLIO scan with a log-sweep and checking the attenuation with a marker while the delta was displayed wrt the 1kHz value.
Will get back on the results
The measurements I did yesterday were basically a CLIO scan with a log-sweep and checking the attenuation with a marker while the delta was displayed wrt the 1kHz value.
Will get back on the results
Just tried to open some files in CLIO but I got the error message ("WAV file cannot be played!") as I also had with several other WAV files whereas I also do have WAV files that seem to be ok.
Is there a difference between the types of WAV?
Is there a difference between the types of WAV?
Hi Arno. Good luck, let me know how it works. I got the pocket version too, but didnt test these math functions yet.
Via REW it works with multiplication / convolution A*B.
The source of these curves extremely reliable. Laboratory quality. The inversion i did mathematically, so its 1:1.
The tiny ripple near DC in some is from truncated windowing of course. I cut to 131k.
Hope CLIO reads that long, i forgot to check. I think it extends only till 65k internally or?
Cheers
Josh
Via REW it works with multiplication / convolution A*B.
The source of these curves extremely reliable. Laboratory quality. The inversion i did mathematically, so its 1:1.
The tiny ripple near DC in some is from truncated windowing of course. I cut to 131k.
Hope CLIO reads that long, i forgot to check. I think it extends only till 65k internally or?
Cheers
Josh
Ah i see 🙂
Can you post one WAV from Clio or does anyone know their format?
It could vary in bit depth, window length (tabs) of IR, and of file header description.
The app I used does not have any header. Can you import to REW and export again to Wav?
I think REW uses better format (but huge window).
Can you post one WAV from Clio or does anyone know their format?
It could vary in bit depth, window length (tabs) of IR, and of file header description.
The app I used does not have any header. Can you import to REW and export again to Wav?
I think REW uses better format (but huge window).
Hi Josh, what I tried to say is that actually none of your WAV files could be opened with CLIO :-(
One has 32bit samples, the other 24bit. Apparently the audio library used by CLIO has problems with wavs with 24bit samples.
But converting files to various formats is trivial, e.g. using sox.
But converting files to various formats is trivial, e.g. using sox.
Code:
pavel@x220 ~ $ soxi psrnoise_flat_96.wav
Input File : 'psrnoise_flat_96.wav'
Channels : 1
Sample Rate : 96000
Precision : 32-bit
Duration : 00:00:02.05 = 196608 samples ~ 153.6 CDDA sectors
File Size : 786k
Bit Rate : 3.07M
[B]Sample Encoding: 32-bit Signed Integer PCM[/B]
pavel@x220 ~ $ soxi RIAA_DEM/BBC.wav
Input File : 'RIAA_DEM/BBC.wav'
Channels : 1
Sample Rate : 96000
Precision : 24-bit
Duration : 00:00:01.37 = 131072 samples ~ 102.4 CDDA sectors
File Size : 393k
Bit Rate : 2.30M
[B]Sample Encoding: 24-bit Signed Integer PCM[/B]Always this format war 🙂 i got that Riaa on different PC than the Clio. So i couldn’t see.
Im still in the office but can try tonight to save different format.
Then not everyone here needs to convert it individually with uncertain result.
Cheers
Josh
Im still in the office but can try tonight to save different format.
Then not everyone here needs to convert it individually with uncertain result.
Cheers
Josh
Hi again! Check this out and let me know which of the formats work for you:
format test
Then I will upload all RIAA files. I couldn't import or "math" any file-format into CLIO Pocket, except of their proprietary log-chirp, and text 🙁
But I was able to load each initial WAV i shared into REW and convolve with A*B:
format test
Then I will upload all RIAA files. I couldn't import or "math" any file-format into CLIO Pocket, except of their proprietary log-chirp, and text 🙁
But I was able to load each initial WAV i shared into REW and convolve with A*B:
Last edited:
Hi Josh, all four files worked! Plugged via the RIAA preamp it showed the sloped down curve...so these files had the "flat" signal?
Morning Arno!
Long way to get it work but finally 😀 that format test contained only the CD emphasis.
I consider this the final final file
RIAA / DEEMPHASIS 32 BIT WAV
enjoy
Long way to get it work but finally 😀 that format test contained only the CD emphasis.
I consider this the final final file
RIAA / DEEMPHASIS 32 BIT WAV
enjoy
So these files are all the inverted RIAA or also the non-inverted versions?
Would be great to have both...
Would be great to have both...
If these are the inverted versions I am a bit confused about the measured curve ..having the RIAA phono pre connected to a HW inverted RIAA filter shows the "straight transfer line".
I would expect that when using the inverted RIAA file without the HW inverted RIAA filter would display this straight curve...with the result of not needing the inverted RIAA HW
Maybe we're talking about a different invertation (2x inverted is normal again ;-) )
I would expect that when using the inverted RIAA file without the HW inverted RIAA filter would display this straight curve...with the result of not needing the inverted RIAA HW
Maybe we're talking about a different invertation (2x inverted is normal again ;-) )
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