How about poly-sinc-ext3? It is very close to sinc-MGa…
Yep. Can do 1x poly-sinc ext 3 with 7EC-fast 512+ and DAC correction. Can also do poly-sinc gauss xla.
For some reason, probably to do with my speakers, the fast EC mod felt tonally top heavy. A +6 dB 0.1Q peakQ EQ at 150Hz sounds good. This is probably because the Morel 4” midrange drivers roll off at 100 Hz to the active bass. I’ve always heard a ‘hole’ around 150 Hz, but the measurements don’t show it. Better high freq reproduction accentuates it but the EQ boost fixes that.
Wow 7EC-fast sounds amazing with default filters.
iPad source is my most used these days (via an RPi4 input NAA)
DAC is Gustard AH90 with ethernet NAA input (running in DSD Direct mode).
Listening on headphones with Hifiman Sundara open backs, EQ’ing to B&K 5128 measurements (only a few filters required, mainly bass)
Sounds amazing.
I’m guessing you using the AH90 headphone output?
Nope because I use DSD Direct which means no volume control for this DAC. So I use a separate headamp
I actually asked Gustard to make a DSDD DAC with analogue volume control in future , so it could be one box for headphones users. Ethernet in, headphone out
@jussi_laako
I have a question regarding the frequency response graph on the Matrix tab when the Pipeline function is used.
I’m not familiar with the second graph, which I think describes the phase shifts.
I did some research online, and my understanding is that if the shifts are not in large amounts, I can ignore them.
Am I correct with this?
Yes it is phase shift.
Yes, interpreting it correctly can also be a bit complex. For example for convolution filters it also shows the filter delay (which equals to frequency dependent shift). So even if the filter does nothing else than delay, the phase would rolling around due to the delay. The phase plot is mostly useful for parametric EQ’s, so you see how fast and large angle changes there are. Higher the Q and level, more the phase swings to.
Hi, @dabassgoesboomboom !!
I installed time ago the HQPlayer Client on my MacBook Pro, but I don’t know how to interpret a spectrogram. I have been reading its chapter at the HQPlayer Desktop manual, its descriptive but it doesn’t help me to understand what the colors mean. Is red bad thing? if it is, how could I correct that “badness”?
Thanks!
Colors encode the level. You can see it as sort of 3D data seen from the top (I can actually make it and angled 3D in some future release, not a problem). On horizontal axis you have time, on vertical axis you have frequency and the level of a particular moment in time/frequency space is encoded with color. From the control panel you can chose between different color codings. Basic black and white is easiest to undestand. Default palette is black-green-red-yellow where black is lowest level, then green is next higher followed by red and highest levels are yellow. This has a bit over thousand different dB levels encoded in color.
Thanks, @jussi_laako the explanation is cristal clear.
Sometimes some guys from the forum show nice green spectrograms, but I usually have spectrograms pretty much like the ones you show in your post. Does those red areas on the lower frequencies mean that something must be corrected on the HQPlayer configuration? or on the other hand it is just the spectrum of the current play and it is what it is?
Thanks!!
I am using version 5.11.0.
The Library screen looks like this and I cannot configure the settings.
How can I fix this?
No, it just means it is higher level than the green one. Yellow parts are even “hotter”. But this is regular RedBook source and from Apod counter you can see it has fixing to do for the apodizing filters.
You can also choose such color palette if you like. Please also note that the color dynamic range scales based on the source resolution (16, 24, 32 bit, etc). So 24-bit sources look “hotter” for same loudness/DR as same content would look in a RedBook package.
I usually choose palette that has nice contrast and makes small details apparent. I think the default one (used in my above screenshot) is such while keeping it readable without too much color clutter. You can easily switch between different palettes to find one that works best for you.
My above screenshot is pretty typical RedBook. Spectrogram is particularly useful for finding fake hires content and seeing how bad it is. For that purpose, there are markers on the frequency scale to show the base rate Nyquist and every multiple of the base rate.
Scan was started, but not completed? It may be still traversing the directory tree until it knows how many items there are. You need to wait for the scan to complete before you can do other actions.
Unfortunately, I haven’t done any setup yet and this is the situation.
I have given it enough time again, but there is no change in the situation.
OK, just reboot the device then, that will certainly interrupt the scan…
So, what does the spectrogram look like for fake hires content?
I’m curious.
Do you have a sample screenshot?
Even after restarting the service and rebooting the PC, there is no change in the display.
The title is offered at 192kHz and would therefore have an audible range of up to 96kHz. In reality, only 22.05kHz can be seen, so it is an audio file with 44.1kHz! In this case, it makes sense to go straight to the CD version. There are often several versions on Qobuz.
For more: Audio Spektrogramm-Analyse – Grigg Audio Solutions
This helps a lot.
Thank you!