When you are dealing with trackers, where audio only comes out, it is never a problem. Problems comes into place when you use it for professional recording, where audio should be able to go in, be processed in realtime, and out, with the least perceived latency possible. It means 5ms or lower (10ms net I/O latency maximum).

In a game this is different because this is nine out of ten times pre-determent of what happens when and thus does not need to happen real time.

That is exactly what i mean.

Besides Reuse of powerful units is a good thing right when they are not in use, right?

Thanks for the advice, it's great to see so much people focused on the same project. It's when people are united like the NatAmi team, Aros, and some other, that the projects can become ambitious.

Rafael rafafredd wrote:

By the way, if someone wants to write drivers professional audio interfaces for Amiga OS, contact TC Electronics and Focusrite. I know both have cooperated with FFADO LINUX driver sending the team all the info and official docs, while many other companies won't even reply to a request like this.

 
This is indeed very interesting. Thank you ! 
 
 

  No expectations about NatAmi and DMX ? ;-)

We don't need to imitate a feature that has no function in a creative machine.
I see the Natami as a tool for people to use their artistic ability in whatever form it maybe.

It's not just about old games!

So what does this mean in Audio.
That we need to be able to generate and record Audio in a good Resolution.
For me this means more then CD quality since well CD's have a aliasing problem with it's 16 bits, 44.1KHz.
24 bits, alone doesn't solve this!

Sadly i don't see any ail in using a CIA time for this since a sample rate close to 196KHz one needs to divide the CIA's clock by about 3.63 rounded up.

To be honest i am not all that into recording i am more into the reproduction of Audio hence love for Vinyl albums.

Besides that assuming we hijack the system for audio recording theoretic max of IDE/ATA is 133MB/s same with PCI thus we will have some overhead.
Hm, 8 Channels 24Bits 196KHz sampling, let's say 8 channels, times 32bits, times frequency, divided by 1048576 for MB/s.
I end up with about 50MB/s so it ought to be within reach but the question remains is it feasible?(did i forget something?)

Sorry all for blurting this core dump on here just my 2 cents for what it's worth.

I agree with this orientation which is more realistic. I think Home computer = Home Studio (export will always be possible).

OFF TOPIC :

Personally, I always preferred the track by track (named here as the home studio). This offers more flexibility. But yes, I know, it is more tedious.

Thanks

Unless you are super-human 16bit, 48KHz for output should be enough. AFAIK there are some 1M USD waiting for so called audiophiles* that can prove those kind of super-human abilities. Higher precision is useful for internal processing to avoid audioable precision losses

(* I'd call myself an audiophile but not of that kind)

Simplified yes. Low speed USB HID have 100Hz update frequency IIRC.
A good USB stack should have no problem with latency nor processor load.

Dude, what century did you buy your hard drive in?
192/24 X 8 is 4MB /second.  My *old* video camera did that to *tape* 10 years ago!

The question is, will it run ProTools, Cubase, Logic, Reason, Reaper etc?
If not I'd forget about being the centre of a studio large or small.

PCs and Macs and even iPads can do high sample rates and high bit rates these days, there's no point competing with this.  You wont offer anything everyone else can't do in better quality, faster and cheaper.

You can run a modern studio with hundreds of channels of music, synths, samplers, drum machines and effects galore all on a single laptop.  Don't believe me?  Listen to the charts, a lot of big artists do exactly that.

If you want to get noticed by musicians be different.

The stuff becoming popular these days is lo-fi. Musicians happily pay a lot of many to make things sound bad.

The Amiga had a truly unique sound chip but for the most part completely failed to use it.

People think Paula is a 4 channel sample player but it can do a lot more.
They don't realise you can chain the channels to do FM synthesis, or AM, or both.
Paula also generates notes by altering the sample playback rate - this gives the Amiga a really distinctive sound, especially with lower rate samples.

An 8 or 16 channel version of Paula would be interesting, bizarrely, 8 bit 28KHz will be just fine.
Another one is to do the FM and AM in better quality / bitrate.  Who is making FM sound chips these days?

Combine that with a tracker with MIDI in and you've got something that is truly unique.  I might even buy one of those.

No, it can't. Your theory makes me cringe.

I hope i explained it better in this way.

What i mean is that this can cause trouble while aliasing.

OK, perhaps I just don't understand what you are saying. In this case I wish to apologise for my rude comment. 15 kHz is in the human hearing range. But what do you mean with "it has a bit over 3 samples at a 48 kHz sample rate"? Are we talking recording or replay? In the case of recording I agree that a sampling frequency of 48 kHz will mean a very high demand for analogue filtering. For this reason 192 kHz recording is popular as the problem of analogue input filtering is relaxed a lot. After digitalisation you can put a very high order digital low-pass filter on the sampled data and down-sample without problems. For the same reason replay at 48 kHz is absolutely sufficient.

Basically i have been speaking about Aliasing here.
What i mean is that between these points which were sampled you can draw the overtone of that frequency without the points altering position.
This is what Aliasing basically is you cannot see the difference between frequency and it's overtone if your sample rate is too low.

This is something one could apply to both Recording and reproduction of a wave form.(But Recording is more important in this matter)

I wasn't even talking about filtering.

To be honest I still think 28KHz has it's charm. ;)