Creative Sound Blaster 16 ASP
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Creative Sound Blaster 16 ASP
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| Bus type | ISA | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bus width | 16-bit | ||||||||||||||||
| Bus speed | 8 MHz | ||||||||||||||||
| 8-bit ISA compatible? | |||||||||||||||||
| Manufacturer | Creative Labs | ||||||||||||||||
| Chipset | CT1746A | ||||||||||||||||
| Compatible with | Sound Blaster | ||||||||||||||||
| Connectors | Mic, Line in, Line out , Speaker out, Gameport | ||||||||||||||||
| Requires -5VDC? | No | ||||||||||||||||
| Requires -12VDC? | Yes | ||||||||||||||||
| Config method | Jumpers, Software | ||||||||||||||||
| Audio | |||||||||||||||||
| Model | CT1740 | ||||||||||||||||
| Full duplex | Unknown | ||||||||||||||||
| Max sample rate | Unknown | ||||||||||||||||
| Channels | 2 | ||||||||||||||||
| FM synth | OPL3 | ||||||||||||||||
| Internal connectors |
|
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| Factory memory | 00 B <br /> | ||||||||||||||||
| CD interface | Matsushita MKE | ||||||||||||||||
| Driver | Missing download URL | ||||||||||||||||
The Sound Blaster 16 ASP is an enhancement to the original SB16 that introduces a signal processing chip. This was supposed to provide hardware compression and decompression of audio, however it proved to be a short-lived addition as later cards dropped this capability - presumably due to increasing CPU speeds and the fact that the majority of audio was synthesised in real-time (e.g. in games) rather than being pre-recorded.
Additional photos
- Creative Sound Blaster 16 ASP underside.jpg
Underside
Jumpers
| I/O address | IOS0 | IOS1 |
|---|---|---|
| 220h | Closed | Closed |
| 240h | Open | Closed |
| 260h | Closed | Open |
| 280h | Open | Open |
| IRQ | IS0 | IS1 |
|---|---|---|
| 2 | Closed | Closed |
| 5 | Open | Closed |
| 7 | Closed | Open |
| 10 | Open | Open |
| Low DMA | DAS0 | DAS1 |
|---|---|---|
| 0 | Closed | Closed |
| 1 | Open | Closed |
| 3 | Closed | Open |
| Disabled | Open | Open |
| High DMA | DBS0 | DBS1 |
|---|---|---|
| 5 | Closed | Closed |
| 6 | Open | Closed |
| 7 | Closed | Open |
| Use low DMA | Open | Open |
| CSP chip | IFSD | APSD |
|---|---|---|
| Disabled | Closed | Closed |
| N/A | Open | Closed |
| N/A | Closed | Open |
| Enabled | Open | Open |
| MIDI I/O address | MSEL |
|---|---|
| 330h | Closed |
| 300h | Open |
| MPU-401 emulation | MFBEN |
|---|---|
| Enabled | Closed |
| Disabled | Open |
| Gameport | JYEN |
|---|---|
| Enabled | Closed |
| Disabled | Open |
| CT17xx amplifier | OPSL | OPSR |
|---|---|---|
| Enabled | 2-3 | 2-3 |
| Disabled | 1-2 | 1-2 |
Presumably when the amplifier is enabled the output jack becomes a "speaker out", whereas a disabled amplifier will change the jack to a "line out" with the volume control nonfunctional, with presumably less noise on the output also.
| Unknown | AUDIO_PWB (JP14) |
|---|---|
| Default | 6-7 |
| Unknown | RSPK_EN |
|---|---|
| Default | Closed |
| ? | Open |
Other connectors
- J3 is the Wave Blaster connector.