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#101 |
diyAudio Member
Join Date: Jul 2014
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This is common effect with many DACs when using DoP. USB interface should delay data stream enough that unmute happens about 100 ms after DSD data has been detected, and mute 100 ms before DSD data ends.
Delaying unmute at start is easier, but really the only way to do proper muting at stop is to have enough buffer/delay in the USB interface so that it can see "ahead of the time". This is just one of the many down sides of DoP. |
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#102 |
diyAudio Member
Join Date: Jan 2004
Location: North Vancouver, B.C.
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Any suggestions for Mac users?
I am not aware of any way to use other USB drivers to avoid DoP. |
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#103 | |
diyAudio Member
Join Date: Nov 2010
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#104 | |
diyAudio Member
Join Date: Jan 2004
Location: North Vancouver, B.C.
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Quote:
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#105 | |
diyAudio Member
Join Date: Jul 2014
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Quote:
(unless you have configuration where output sampling rate would need to change, rate cannot be changed on the fly) |
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#106 |
diyAudio Member
Join Date: Jul 2014
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Not really, there should be delay before Amanero unmutes the output after the data stream has started. And vice versa it should mute the output before data stream stops. I understood that the stop case is particularly problematic?
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#107 | |
diyAudio Member
Join Date: Jan 2004
Location: North Vancouver, B.C.
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Quote:
Yes, the stop click is louder, but only marginally. It is a shame because the combination of HQ Player Desktop and DSC1 is a real winner. The best sound I have experienced in my systems, both Stax headphone based and the large room system. What I am now curious about is why the Resonessence Labs Herus and Concero which I also have, do not make noises doing DSD under DOP in the same systems. Neither does a friend's M2Tech Young DSD. Is it an Amanero shortcoming with any hope of overcoming for Mac users? N. |
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#108 |
diyAudio Member
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Hi Nic.M,
In my system - which is PC based - the Amanero also when shifting tracks or on stop & start of playback. I somehow (although not entirely satisfactorily) solved it by setting up the clock for asynchronous playback - this reduced the clicks substantially but also caused playback to not really work at 384 kHz. And then I haven't had the time to amend this ... BTW - you are aware of the Amanero "support" thread: http://www.diyaudio.com/forums/vendo...converter.html Although very long there's a good bit of information here about various challenges with the Amanero board ... Cheers, Jesper
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"... It is always possible to be friendly ..." HH the Dalai Lama. |
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#109 | ||
diyAudio Member
Join Date: Jul 2014
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Quote:
For DoP it requires a look-ahead buffer in the USB receiver, so it can control mute before changes in the output data happen. Sabre is especially nasty chip in this respect because it cannot be programmatically switched between PCM and DSD modes but instead uses autodetect based on the input signals (so clever mute is mandatory). Quote:
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#110 | |
diyAudio Member
Join Date: Jan 2004
Location: North Vancouver, B.C.
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Quote:
Excuse my ignorance, but I do not know how to do this. I have gone into the settings and see no dialog for doing this in HQ Player. Yes, I have been slowly wading through the long Amanero thread, tedious reading(I am on page 93 of 150 or so.) There was only one post so far of clicking noises but nobody seems to have paid much attention to it. I will struggle on with it in the hope of finding something helpful. N. |
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