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An L7A1045 DSP chip, as used in several Akai samplers and the Hyper Neo Geo 64 arcade board The NeXTcube from 1990 had a Motorola 68040 (25 MHz) and a digital signal processor Motorola 56001 with 25 MHz which was directly accessible via an interface. A digital signal processor (DSP) is a specialized microprocessor chip, with its architecture ...
Digital signal processing (DSP) is the use of digital processing, such as by computers or more specialized digital signal processors, to perform a wide variety of signal processing operations. The digital signals processed in this manner are a sequence of numbers that represent samples of a continuous variable in a domain such as time, space ...
An McASP functions as a general-purpose audio serial port optimized for the needs of multichannel audio applications. Depending on the implementation, an McASP may be useful for time-division multiplexed ( TDM ) streaming, inter-integrated circuit sound ( I2S ) protocol, and intercomponent digital audio interface transmission (DIT).
For instance, the default device for sound input and output is /dev/dsp. Examples using the shell: cat /dev/random > /dev/dsp # plays white noise through the speaker cat /dev/dsp > a.a # reads data from the microphone and copies it to file a.a OSS implements the /dev/audio interface.
The USB specification defines a standard interface, the USB audio device class, allowing a single driver to work with the various USB sound devices and interfaces on the market. Mac OS X, Windows, and Linux support this standard. However, some USB sound cards do not conform to the standard and require proprietary drivers from the manufacturer.
Yamaha Y8950 (a.k.a. MSX-AUDIO) 1984 18 9 2 MSX-Audio cartridges for MSX (Panasonic FS-CA1, Toshiba HX-MU900, and Philips NMS-1205) Very similar to Yamaha YM3526, additional adaptive differential PCM (ADPCM) channel, silicon-gate CMOS LSI chip [65] Yamaha YM2164 (a.k.a. OPP) 1985 32 8 4
Audio Stream Input/Output (ASIO) is a computer audio interface driver protocol for digital audio specified by Steinberg, providing high data throughput, synchronization, and low latency between a software application and a computer's audio interface or sound card.
An analog audio signal is a continuous signal represented by an electrical voltage or current that is analogous to the sound waves in the air. Analog signal processing then involves physically altering the continuous signal by changing the voltage or current or charge via electrical circuits.
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