[vonBaron]

DId Pro IDSD and Pro ICan has bulit in
DC iPurifier2?

 

[iFi audio]

I'm of the same view and would like to see a direct DSD to DSD upsampling being implemented in future firmware update.

OK, here's how it goes regarding the DSD upconversion process in our Pro iDSD. There's no meaningful way to upsample DSD directly to DSD with no intermediate format. In order to do pretty much anything with DSD (level control, EQ. etc.) it has to be converted to something else. In fact, that's how all professional DSD recording software works.

To pre-emptively answer the question about the intermediate format itself in our Pro iDSD, most manufacturers don't tell, but what we can say is that we do it the same way as Pyramix

More importantly, the upconversion quality replies upon hardware. We went with FPGA to have it as top level as we could.

DId Pro IDSD and Pro ICan has bulit in
DC iPurifier2?

Not exactly DC iPurifier2, but something based on the same technology, made to be adapted in the Pro range.

 

[Jerry C]

OK, here's how it goes regarding the DSD upconversion process in our Pro iDSD. There's no meaningful way to upsample DSD directly to DSD with no intermediate format. In order to do pretty much anything with DSD (level control, EQ. etc.) it has to be converted to something else. In fact, that's how all professional DSD recording software works.

To pre-emptively answer the question about the intermediate format itself in our Pro iDSD, most manufacturers don't tell, but what we can say is that we do it the same way as Pyramix

More importantly, the upconversion quality replies upon hardware. We went with FPGA to have it as top level as we could.

1. HQPlayer could do direct DSD to DSD up conversion.
2. For iDSD Pro, at the minimum, would appreciate a no filter option, ie. bit-perfect, DSD to DSD up conversion with intermediate format.

Lastly, dear @iFi audio , could you please confirm, 48k DSD playback will be fixed in the next firmware update? Thanks!

 

[iFi audio]

2. For iDSD Pro, at the minimum, would appreciate a no filter option, ie. bit-perfect, DSD to DSD up conversion with intermediate format.

You can push a lot of stuff to Pro iDSD natively. And there is no known or documented valid method to do:

DSD -> DSD x N

(with N being 2..8) directly.

All require an intermediate format, that is

DSD -> IMFMT -> DSD x N

We won't comment products other than ours, those who make claims to do it differently should be asked.

Also, we worked with a software house on an aborted DSD DAW project, where we all greatly scrutinised the possibilities of DSD processing, including EQ, mixing, gain setting etc. in the digital domain.

Lastly, dear @iFi audio , could you please confirm, 48k DSD playback will be fixed in the next firmware update? Thanks!

We're investigating this.

 

[o.fz]

The iDSD had a spectacular crash yesterday.

I eventually had enough time and patience to update the firmware, several days ago. I'm now running firmware 2.08.

The crash happened that way: I was playing a hi-res file [24-88.2]. Suddenly, the sound went heavyly distorted, as if the track has changed from Hank Mobley (which was playing) to Merzbow. I jumped on my preamp's mute button and I turned off the iDSD. All its lights went normally off. But when I turned it back on the horrible noise was still there. So I turned it off again and unplugged it. Not enough time, apparently: when I turned it on, there was a loud white noise on the left channel. Turned it off, unplugged it, etc... Now the white noise was on the right channel! Finally, I unplugged it for several minutes, and it worked "normally". Except that, at the same point of the same track, the noise started again. I knew what I had to do...
After that, I played another album, and it went fine, except for 1 odd second of the same noise, which immediately stopped.
I checked the Mobley's track on my computer, but I didn't find anything abnormal about it: it played fine, without the slightest hiccup.

Now I'm suffering from PTSD. And i'm wondering: what had happened to the iDSD? Is it a bug of the new firmware, or is my unit about to physically die?

Another - less traumatic but still annoying - bug, that I noticed before the crash: I turn on the unit at least one hour before I begin to use it. Each time, before playing the first file, I hear a click, like a relay commuting. It's not a problem per se, except that it causes a loud click in the loudspeakers too, which is not the best way to start playing music.

Did someone got the same problem(s) here?

 

[iFi audio]

The iDSD a spectacular crash yesterday.

I eventually had enough time and patience to update the firmware, several days ago. I'm now running firmware 2.08.

The crash happened that way: I was playing a hi-res file [24-88.2]. Suddenly, the sound went heavyly distorted, as if the track has changed from Hank Mobley (which was playing) to Merzbow. I jumped on my preamp's mute button and I turned off the iDSD. All its lights went normally off. But when I turned it back on the horrible noise was still there. So I turned it off again and unplugged it. Not enough time, apparently: when I turned it on, there was a loud white noise on the left channel. Turned it off, unplugged it, etc... Now the white noise was on the right channel! Finally, I unplugged it for several minutes, and it worked "normally". Except that, on the same point of the same track, the noise started again. I knew what I had to do...
After that, I played another album, and it went fine, except for 1 odd second of the same noise, which immediately stopped.
I checked the Mobley's track on my computer, but I didn't find anything abnormal about it: it played fine, without the slightest hiccup.

Now I'm suffering from PTSD. And i'm wondering: what had happened to the iDSD? Is it a bug of the new firmware, or is my unit about to physically die?

Another - less traumatic but still annoying - bug, that I noticed before the crash: I turn on the unit at least one hour before I begin to use it. Each time, before playing the first file, I hear a click, like a relay commuting. It's not a problem per se, except that it causes a loud click in the loudspeakers too, which is not the best way to start playing music.

Did someone got the same problem(s) here?

Thanks for letting us know. We'd strongly suggest to open up a ticket at our support platform: http://support.ifi-audio.com/

...and try to diagnose the issue with our tech staff. The way how your product behaved isn't normal.

Thanks!

 

[o.fz]

Did it. Thanks.

Edit: But I haven't got any confirmation that my message has been received.

 

[o.fz]

Still haven't got any answer. Has my ticket been created?

 

[o.fz]

Btw, I tried to go back to my previous version of the firmware (which was 2.03, actually), but I got a message saying that the upgrade had failed.
I tried to reinstall firmware 2.08, but it failed too. At that moment the installed firmware version was displayed as 1.38 (or was it 1.48? - something like that).
So I tried to install 2.01, which worked (phew...), and then upgraded again to 2.08, which worked too.
Now we will see if the ugly crash happens again. If it does, I'll rely upon your support team instructions, if any.

 

[iFi audio]

Now we will see if the ugly crash happens again. If it does, I'll rely upon your support team instructions, if any.

Please do. Our tech team usually replies withon 48 hours, oftentimes faster, but just before holiday it's a bit tense.

 

[Karllin]

Sorry to ask what might be a question that has been addressed previously, but I would like to know if the Pro iDSD is capable of natively streaming Tidal MQA titles. And if if can, is the quality similar to what one would get feeding via usb and an app on a PC to the iDSD?

Thanks in advance for any info.

Merry Christmas everyone!

 

[iFi audio]

I would like to know if the Pro iDSD is capable of natively streaming Tidal MQA titles

Yes:

 

[aterville]

Hello @iFi audio any chance you can share a firmware roadmap.
I would yo to have OLED screen showind DSD 64/128/256 rather the current frequency thing.

Thanks for your hard work btw 2.08 is fantastic I can enjoy tube mode w/out annoying clicks

 

[iFi audio]

Hello @iFi audio any chance you can share a firmware roadmap.

Nope, sorry. Once we're ready to release a new FW, we release. Until then, we gather feedback, we process, we implement, we hunt for bugs... the usual

 

[riverred105]

I'm of the same view and would like to see a direct DSD to DSD upsampling being implemented in future firmware update.

Why? Have you noted some deficiency in sound? It’s somewhat like complaining you’d like to see better 3D graphics performance in a future update; I say somewhat, as 3D graphics rendering is an actual, real thing.

Are there any prosumer or pro equipment that does this? Ifi has created a true marvel in a small box that gives an unbelievable number of audio choices to the user in, more importantly, a high quality and relatively (compared to what an audiophile dac can cost) low cost manner.

You are complaining about something isn’t really fundamentally consistent with DSD and asking for an impossible solution to an imaginary question for reasons that can’t be quantified.