Holo Audio Red Streamer

[heyguyslol]

Has anyone considered dropping in the CM5 into the Red now that it's available?

Out of curiosity if the new CM5 is compatible w/ the Red, what would be the benefits of it over the current module?

 

[Xantores]

Out of curiosity if the new CM5 is compatible w/ the Red, what would be the benefits of it over the current module?

Poweeerrrr Raaammmm

 

[musicinmymind]

Out of curiosity if the new CM5 is compatible w/ the Red, what would be the benefits of it over the current module?

What is CM5?

 

[storaid]

What is CM5?

Raspberry Compute Module
https://www.raspberrypi.com/products/compute-module-5/?variant=cm5-104032
BCM2712

 

[heyguyslol]

Poweeerrrr Raaammmm

Ok lets try this again, what will the CM5 do for the performance of the Red that it can't already do?

 

[comzee]

Ok lets try this again, what will the CM5 do for the performance of the Red that it can't already do?

If you use the default RED OS, nothing, it's meaningless.

For the power users that know what's up, Gentoo Player is the operating system to use.
With Gentoo Player, you can install High Quality Player (HQP) to oversample.

HQP depending on the filter used needs lots of CPU and RAM.
CM5 replacement would open up much more filters to potentially use.

I opened up my RED today to see, and it does appear the CM4 has standard non-soldered connection to the RED PCB. CM5 does look like it could be a drop in replacement. I'll be watching this thread in hopes of somebody willing to try it!

 

[musicinmymind]

If you use the default RED OS, nothing, it's meaningless.

For the power users that know what's up, Gentoo Player is the operating system to use.
With Gentoo Player, you can install High Quality Player (HQP) to oversample.

HQP depending on the filter used needs lots of CPU and RAM.
CM5 replacement would open up much more filters to potentially use.

I opened up my RED today to see, and it does appear the CM4 has standard non-soldered connection to the RED PCB. CM5 does look like it could be a drop in replacement. I'll be watching this thread in hopes of somebody willing to try it!

Not sure about CM5, but CM4 which comes with Red can be replaced without any soldering. When I got Red, for some silly reason Red could not be detected in network. Then magnahifi send me replacement CM4 module and ask me to replace myself, which I did.

 

[comzee]

Not sure about CM5, but CM4 which comes with Red can be replaced without any soldering. When I got Red, for some silly reason Red could not be detected in network. Then magnahifi send me replacement CM4 module and ask me to replace myself, which I did.

That's key information, thank you for relaying it.
Also this Youtube video claims almost complete backwards compatibility. He tested CM4 -> CM5 drop in on a handful of PCB's and only one had a slight issue.

It's really looking like 90%+ chance CM5 could be drop in for RED. I'll probably order one myself just to try, it's not that much. If it doesn't work, I'll just put the CM4 back in, no harm done.

Edit:

To be clear, the only thing I was wondering was if CM4 was somehow soldered or permanently attached to the RED PCB.
@musicinmymind confirmed the CM4 is replaceable.

CM5 has the exact same layout, connection port, and pin layout. It is a 100% fact it will fit into the RED PCB.
Now the only thing I'm wondering, (which is the 90% part) if the RED PCB components will be cross compatible with CM5.

From the Youtube video I linked, it's seems very possible all components would work just fine.

 

[Xantores]

If you use the default RED OS, nothing, it's meaningless.

For the power users that know what's up, Gentoo Player is the operating system to use.
With Gentoo Player, you can install High Quality Player (HQP) to oversample.

HQP depending on the filter used needs lots of CPU and RAM.
CM5 replacement would open up much more filters to potentially use.

I opened up my RED today to see, and it does appear the CM4 has standard non-soldered connection to the RED PCB. CM5 does look like it could be a drop in replacement. I'll be watching this thread in hopes of somebody willing to try it!

I couldn't have said it better myself

 

[catastrofe]

If you use the default RED OS, nothing, it's meaningless.

For the power users that know what's up, Gentoo Player is the operating system to use.
With Gentoo Player, you can install High Quality Player (HQP) to oversample.

HQP depending on the filter used needs lots of CPU and RAM.
CM5 replacement would open up much more filters to potentially use.

I opened up my RED today to see, and it does appear the CM4 has standard non-soldered connection to the RED PCB. CM5 does look like it could be a drop in replacement. I'll be watching this thread in hopes of somebody willing to try it!

Some points for reference:

If you run HQP on the Red/Gentoo, you will be limited to using the Red as a DDC. To the best of my knowledge, you can't run HQP and use that same device as a NAA.

The generally recommended minimum RAM spec for HQP is 16GB...I don't believe the Red has that much.

Broadly speaking, you will need much more power than that available on the Red (regardless of CM4 or CM5) to run substantial upsampling filters. Even using an M4 Pro MacMini with 48GB of RAM, there are limits to which modulators I can run for DSD upsampling depending on the sample rate of the source material. PCM is much less intensive, so that "might" be possible on the Red, but in my experience, doubtful if you're looking for excellent performance.

 

[comzee]

To the best of my knowledge, you can't run HQP and use that same device as a NAA.

I'll have to look into this.

Even using an M4 Pro MacMini with 48GB of RAM, there are limits to which modulators I can run for DSD upsampling depending on the sample rate of the source material. PCM is much less intensive, so that "might" be possible on the Red, but in my experience, doubtful if you're looking for excellent performance.

Absolutely correct, no way CM5 is ever going to run DSD oversampling, ever.

It can do PCM oversampling, poly-sinc-gauss-halfband with LNS15 at 768Khz I'm sure it could do.

 

[catastrofe]

I'll have to look into this.


Absolutely correct, no way CM5 is ever going to run DSD oversampling, ever.

It can do PCM oversampling, poly-sinc-gauss-halfband with LNS15 at 768Khz I'm sure it could do.

The only way to know would be to try, but personally, I don't think it has enough RAM.

 

[heyguyslol]

I'll have to look into this.


Absolutely correct, no way CM5 is ever going to run DSD oversampling, ever.

It can do PCM oversampling, poly-sinc-gauss-halfband with LNS15 at 768Khz I'm sure it could do.

Thank you for answering my question. However, I don't see how you are going to have enough processing power out of this lil module to run HQP?

I guess perhaps if your use case doesn't use filters or modulators that require much power and are sticking w/ PCM it might be possible but I wouldn't hold my breath.

I have a 13700K + 3090 and while it handles HQP just fine I can see how much stress it puts on my system so expecting this lil Pi unit to be able to do the same seems like a pipe dream but I'd love to be proven wrong so if the shoe fits DO IT!!!

 

[Xantores]

The only way to know would be to try, but personally, I don't think it has enough RAM.

yes, the only solution remains to mount a dedicated and sufficiently powerful pc. I tested several times HQplayer embedded with the Holo red and it is impossible to upsample beyond 384khz and it depends on what filters you need, so there are a lot of difficulties.

I continue to use HQplayer from my laptop.

 

[heyguyslol]

I couldn't have said it better myself

That's the point. YOU DIDN'T...