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- Path: grafix.xs4all.nl!john.hendrikx
- Date: Wed, 24 Jan 96 20:56:04 GMT+1
- Newsgroups: comp.sys.amiga.programmer
- Distribution: world
- Subject: Re: playing 14 bit samples. how?
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- From: john.hendrikx@grafix.xs4all.nl (John Hendrikx)
- Message-ID: <john.hendrikx.48y3@grafix.xs4all.nl>
- Organization: Grafix Attack BBS Holland
-
- In a message of 22 Jan 96 Steffen Thorsen wrote to All:
-
- >> I've found on Aminet some progs claiming to be able to play samples with
- >> 14 bit quality, using only the standard amiga audio hardware. I'd like to
- >> know how this can be done (if possible). Can someone post some text about
- >> it? (detailed explanations,please)
-
- ST> The Amiga has 8 bit sound by standard. But it also has 6 bit volume
- ST> registers for each sound channel which can be adjusted independently
- ST> from the main sound. And 6+8 bit is 14 bit as far as I know. It seems
- ST> easy, but needs a whole lot of CPU power doing this, while normal 8-bit
- ST> can be handled directly by DMA. Another problem is that you will have
- ST> to calibrate the programs to your speakers.
-
- You can use 2 sound-channels to play 14-bit quality sound by letting one
- channel change the volume of the other, so you can do this without a whole lot
- of CPU power. In effect you will always be playing the top 8-bits of the
- sample and using the volume to compensate for which top 8-bits your playing.
-
- (The other method to use 2 channels playing at different volumes seems easier
- to use though).
-
- Grtz John
-
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