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Difference between revisions of "AHI Device"
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(Created page with "== AHI Device == == AHI Device Commands and Functions == == Device Interface == === Opening the AHI Device === === Reading from the AHI Device === === Writing to the AHI Devic...") |
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| + | == About AHI == |
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| + | === Definitions === |
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| + | Terms used in the following discussions may be unfamiliar. Some of the more important ones are defined below. |
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| + | ;Sample |
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| + | :A sample is one binary number, representing the amplitude at a fixed point in time. A sample is often stored as an 8 bit signed integer, a 16 bit signed integer, a 32 bit floating point number etc. AHI supports only integers. |
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| + | ;Sample frame |
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| + | :In mono environment, a sample frame is the same as a sample. In stereo environment, a sample frame is a tuple of two samples. The first member is for the left channel and the second member is for the right channel. |
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| + | ;Sound |
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| + | Many sample frames stored in sequence as an array can be called a sound. A sound is, however, not limited to being formed by samples. It can also be parameters to an analog synth or a MIDI instrument, or be white noise. AHI supports only sounds formed by samples. |
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== AHI Device == |
== AHI Device == |
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| + | AHI device has two different APIs: a library-like function interface (for low-level access) and device interface (for high-level access). |
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| + | |||
== AHI Device Commands and Functions == |
== AHI Device Commands and Functions == |
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== Device Interface == |
== Device Interface == |
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Revision as of 20:31, 16 March 2017
Contents
About AHI
Definitions
Terms used in the following discussions may be unfamiliar. Some of the more important ones are defined below.
- Sample
- A sample is one binary number, representing the amplitude at a fixed point in time. A sample is often stored as an 8 bit signed integer, a 16 bit signed integer, a 32 bit floating point number etc. AHI supports only integers.
- Sample frame
- In mono environment, a sample frame is the same as a sample. In stereo environment, a sample frame is a tuple of two samples. The first member is for the left channel and the second member is for the right channel.
- Sound
Many sample frames stored in sequence as an array can be called a sound. A sound is, however, not limited to being formed by samples. It can also be parameters to an analog synth or a MIDI instrument, or be white noise. AHI supports only sounds formed by samples.
AHI Device
AHI device has two different APIs: a library-like function interface (for low-level access) and device interface (for high-level access).
