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Author Topic: audio.device support in OS4?  (Read 2420 times)

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Offline ChaosLord

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Re: audio.device support in OS4?
« Reply #14 from previous page: February 16, 2015, 04:45:08 PM »
Quote from: chris;784395
If you have a sound card, it makes sense to redirect it to that, surely?

That would just waste a huge bunch of CPU cycles for nothing.  It wouldn't sound any different.  It is the same 8-bit samples making the exact same sound.

When you use AHI you don't get the benefits of Paula audio.
You don't get DMA.
You waste vast gigantic amounts of cpu power.
Paula audio is free.  It costs nothing.  Paula uses DMA.  Paula uses interrupt-driven hardware double-buffering so you can't get buffer underflows.  Paula always works since there are no drivers to install.
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Offline chris

Re: audio.device support in OS4?
« Reply #15 on: February 16, 2015, 07:17:20 PM »
Quote from: ChaosLord;784408
That would just waste a huge bunch of CPU cycles for nothing.  It wouldn't sound any different.  It is the same 8-bit samples making the exact same sound.

It would potentially save some dodgy cabling to make the Paula and soundcard output come out of the same speakers.
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Offline ChaosLord

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Re: audio.device support in OS4?
« Reply #16 on: February 16, 2015, 07:51:20 PM »
Quote from: chris;784395
If you have a sound card, it makes sense to redirect it to that, surely?


Quote from: chris;784447
It would potentially save some dodgy cabling to make the Paula and soundcard output come out of the same speakers.


2 Y-adapters are not "dodgy cabling".  They are cheap and effective.
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Offline MinuousTopic starter

Re: audio.device support in OS4?
« Reply #17 on: February 17, 2015, 02:42:03 AM »
>If you have a program (in this case the Paula driver) that runs fine on the real hardware, and with the same software fails under emulation, surely the fault has to be the emulation?

I don't know that it runs fine on the real hardware. It was developed under emulation, and I don't have real hardware to test it on, and I can't find any documentation that says if audio.device is properly supported under OS4.0. (CodeWar & Worm Wars sound effects, quite straightforward use of audio.device to play back sampled sounds.) I can't find any changelog for OS4 to find out if/when support for it was added.

>Is audio.device supported in OS4? Yes, it is.

Is it supported in OS4.0 or only OS4.1?

>Had this been run on a real Amiga the question wouldn't have even come up.

Sorry, I don't have $5000...
« Last Edit: February 18, 2015, 03:29:29 AM by Minuous »
 

Offline Oldsmobile_Mike

Re: audio.device support in OS4?
« Reply #18 on: February 17, 2015, 03:20:56 AM »
Quote from: ChaosLord;784462
2 Y-adapters are not "dodgy cabling".  They are cheap and effective.

And risky.  I would use a $20 mixer, or a switch, instead.  So that you're not feeding the output of one sound card back into the second one.
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