![M-Audio DMAN [43/52] Troubleshooting](/img/pdf.png)
M-Audio DMAN [43/52] Troubleshooting
![M-Audio DMAN [43/52] Troubleshooting](/views2/1020087/page43/bg2b.png)
43
Troubleshooting
This section addresses potential problems that can occur in all
operating system environments, with emphasis on hardware
troubleshooting. Within the PC environment there is a limited
number of hardware resources (addresses, IRQs, and DMA
channels) available for use. Since audio cards require many
resources, most audio card installation problems arise from
improperly set IRQ and DMA values. The tables below list the
IRQ and DMA channel assignments normally used in the PC
environment. When you experience problems that indicate a
resource conflict, you can compare the IRQ and DMA channels
shown in the tables below with your current parameters, as listed
in the Configuration screen.
Typical IRQ Assignments
Interrupt IBM PC Assigns This Interrupt To:
IRQ2/9 Available
IRQ3 COM2: Second Serial Port
IRQ4 COM1: First Serial Port
IRQ5 LPT2: Second Parallel Printer Port, usually
available
IRQ6 Floppy Disk Controller
IRQ7 LPT1: 1st Parallel Printer Port, usually available
IRQ8 Real Time Clock
IRQ10 Available
IRQ11 Available
IRQ12 Pointing Device (PS/2 or bus type Mouse)
IRQ13 Math Co-processor
IRQ14 Hard Disk Controller
IRQ15 Second Hard Disk Controller, usually available
Содержание
- Contents 1
- Fcc class b european ce compliance 3
- Fcc id imjdman 3
- Introduction 4
- What s in the box 4
- About the dman 5
- Quick start guide 5
- Digital audio features of dman 6
- About plug and play 7
- The solution 7
- About digital recording 8
- Pnp theory of operation 8
- Digital recording dos and don ts 9
- Dman connection 10
- Dman connections 12
- Hardware installation 12
- Daughterboard installation optional 14
- Driver and utilities installation 15
- Please follow these step 15
- Windows 3 x software 15
- Audio setup for non pnp computers 19
- Windows 3 x driver control panel 19
- Audio setup for computers with pnp 20
- Midi mpu401 setup 21
- Audio input control panel 22
- Windows 3 x utility applications 22
- Audio mixer control panel 24
- The audio transport 26
- Defining a new audio file 28
- The user defined audio transport button 29
- Sound check application 30
- Driver installation 31
- Windows 95 software 31
- Windows 95 driver configuration 32
- Windows 95 mixer wss mixer 33
- Click the recording button with the left mouse button to bring up the recording mixer shown are the devices that are allowed as inputs to the recording mixer again unchecking a specific box will eliminate that device from the input mixer window known as the wave input window the wave input window is accessed when the ok button is clicked 35
- Windows sound recorder 36
- Dman diagnostics utility 38
- Dos software utilities 38
- Dman dos mixer utility 39
- Dman with 3rd party applications 41
- Audio formats 42
- Disk space per minute 42
- Disk space requirements for typical recording formats 42
- Dman supports recording and playback in many audio formats when selecting an audio format you are usually trading off sound quality versus the amount of disk space the recorded audio will consume in general sound quality increases as the sample rate increases as the number of bits used increases as stereo is used instead of mono and when the audio is not compressed i e its format is pcm not adpcm or a law sample rate is the parameter most directly related to frequency response and should be chosen carefully unless you have unlimited disk space available choose a sample rate that is at least twice the frequency this is called the nyquist value of the highest audio frequencies you want to record for example if your source material has a frequency range of 30 hz to 10 khz you can record at a sample rate of 22 khz increasing to 44 khz is unlikely to improve the audio quality and it will take twice as much disk space to store the file below is a table of commonly used audio formats and the 42
- Format 42
- Hard disk space requirements for typical audio formats 42
- Sample 42
- Typical use 42
- Interrupt ibm pc assigns this interrupt to 43
- This section addresses potential problems that can occur in all operating system environments with emphasis on hardware troubleshooting within the pc environment there is a limited number of hardware resources addresses irqs and dma channels available for use since audio cards require many resources most audio card installation problems arise from improperly set irq and dma values the tables below list the irq and dma channel assignments normally used in the pc environment when you experience problems that indicate a resource conflict you can compare the irq and dma channels shown in the tables below with your current parameters as listed in the configuration screen 43
- Troubleshooting 43
- Typical irq assignments 43
- Channel 44
- Ibm pc assigns this channel to 44
- Typical dma assignments 44
- Dos troubleshooting 45
- Windows 3 x troubleshooting 47
- Windows 95 troubleshooting 49
- Appendix technical specs 51
- Board configuration 51
- Channel volume controls 51
- External audio inputs 51
- External audio outputs 51
- Limited lifetime warranty 52
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