MCLK output
Hi guys,
What frequency is the Kali's MCLK output? Is it the selected clock's direct output (e.g. 45/49 MHz) or some fraction of it (e.g. selected clock / 2 -> 22/24 MHz)?
I ask this because not all DAC chips can handle 45/49 MHz MCLKs...
If it's the direct output, then it would be nice if the v2 board could output MCLK and MCLK / 2 as well, something similar to jlsounds's I2SoverUSB
Hi guys,
What frequency is the Kali's MCLK output? Is it the selected clock's direct output (e.g. 45/49 MHz) or some fraction of it (e.g. selected clock / 2 -> 22/24 MHz)?
I ask this because not all DAC chips can handle 45/49 MHz MCLKs...
If it's the direct output, then it would be nice if the v2 board could output MCLK and MCLK / 2 as well, something similar to jlsounds's I2SoverUSB
Sorry I missed this..
Project is advancing quite nicely , we had some problems with components , in 2 weeks time I will give a full update.
We have lots of projects on the pipeline and Kali is performing quite well so Kali 2 is not a priority, but will come at one point.
The filters in Volumio are now working OK in 2.1 and 2.2 mode.
At present, though, I'm using the Kali+Piano 2.1 DAC in 2.0 mode in conjunction with Moode 3.5. I found some settings which give full audio spectrum output through both the Main and Sub DAC outputs. I'm taking the L channel from the Sub out and the R channel from the Main out, and I'm hearing improved location and definition of instruments. Easily the best sound I've yet had from the RPi.
John
At present, though, I'm using the Kali+Piano 2.1 DAC in 2.0 mode in conjunction with Moode 3.5. I found some settings which give full audio spectrum output through both the Main and Sub DAC outputs. I'm taking the L channel from the Sub out and the R channel from the Main out, and I'm hearing improved location and definition of instruments. Easily the best sound I've yet had from the RPi.
John
The settings in Moode which seem essential to getting it to work like this are:
1.Using software volume.
2.Resampling to 24bit. (Or playing 24 bit files).
I've only done this with Moode 3.5, using the RT-Advanced Kernel. I don't know whether the above settings will work with the other kernels or with earlier versions of Moode.
John
Depends on what you mean by 'dual mono'. As I understand it, dual mono would be the L channel + and - outputs coming through one DAC and the R channel + and - through the other. That would enable balanced operation.
What I have at the moment is what you might call 'dual stereo', with each DAC putting out L and R channels. I'm just taking the L and R from separate DACs.
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Yes, definitely improved sq, as I mentioned previously.
Btw, I just noticed that at one point Scott Kramer was taking L and R from separate DACs (post 112).
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I've tested Jonners method. And it works with flac files, but not with wav files. Sub +R signal is weak on a wav file. Left channel is as expected good.
How strange. I didn't try with wav files.
Can't you just take L out from Sub, R out from Main?
Hi Bommetje,
What can't you reproduce - the problem with wav files?
Yes I listened to the TDA1387, both without and with Kali. Kali improves it a lot but the treble can be a bit harsh and I much prefer the Piano.
John
I've only tried with Moode 3.5, so there's probably only one way to find out!
What seems to be necessary is that you don't use hardware volume control and you play 24bit.