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11641 spelling mistakes in section 7d of the manual
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sample rate for both play and record. This ensures that none of the
audio streams require compute-intensive low pass filtering. The result
is that high sample rate audio streams are not degraded by filtering.
! Sample rate conversion can be a compute-intensive operation,
! dependingon the number of channels and a device's sample rate. For
! example, an 8KHz signal can be easily converted to 48KHz, requiring a
! low cost up sampling by 6. However, converting from 44.1KHz to 48KHz is
! computer intensive because it must be up sampled by 160 and then down
! sampled by 147. This is only done using integer multipliers.
Applications can greatly reduce the impact of sample rate conversion by
carefully picking the sample rate. Applications should always use the
highest sample rate the device supports. An application can also do its
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sample rate for both play and record. This ensures that none of the
audio streams require compute-intensive low pass filtering. The result
is that high sample rate audio streams are not degraded by filtering.
! Sample rate conversion can be a compute-intensive operation, depending
! on the number of channels and a device's sample rate. For example, an
! 8KHz signal can be easily converted to 48KHz, requiring a low cost up
! sampling by 6. However, converting from 44.1KHz to 48KHz is computer
! intensive because it must be up sampled by 160 and then down sampled by
! 147. This is only done using integer multipliers.
Applications can greatly reduce the impact of sample rate conversion by
carefully picking the sample rate. Applications should always use the
highest sample rate the device supports. An application can also do its
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order to perform mixing. (This is done to allow for possible overflows
to fit into 32-bits when mixing multiple streams together.) Hence, the
maximum effective precision is 24-bits.
FILES
- /kernel/drv/audio
- 32-bit kernel driver module
-
-
/kernel/drv/amd64/audio
! 64-bit x86 kernel driver module
/kernel/drv/sparcv9/audio
! 64-bit SPARC kernel driver module
/kernel/drv/audio.conf
! audio configuration file
ATTRIBUTES
See attributes(5) for a description of the following attributes:
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order to perform mixing. (This is done to allow for possible overflows
to fit into 32-bits when mixing multiple streams together.) Hence, the
maximum effective precision is 24-bits.
FILES
/kernel/drv/amd64/audio
! Device driver (x86)
/kernel/drv/sparcv9/audio
! Device driver (SPARC)
/kernel/drv/audio.conf
! Driver configuration file
ATTRIBUTES
See attributes(5) for a description of the following attributes:
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SEE ALSO
ioctl(2), attributes(5), audio(7I), dsp(7I)
! August 3, 2009 AUDIO(7D)
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SEE ALSO
ioctl(2), attributes(5), audio(7I), dsp(7I)
! January 10, 2020 AUDIO(7D)