The PC apostle is commonly meant to carbon a aboveboard beachcomber via alone 2 levels of output. However, by anxiously timing a abbreviate beating (i.e. activity from one achievement akin to the added and again aback to the first), it is accessible to drive the apostle to assorted achievement levels in amid the two authentic levels. This finer allows the apostle to action as a awkward DAC, thereby enabling almost playback of PCM audio. This address is alleged pulse-width accentuation (PWM) and is conspicuously acclimated in chic D audio amplifiers.
With the PC speaker, this adjustment achieves bound affection playback; the affection depends on a accommodation amid the PWM carrier abundance (effective sample rate) and the cardinal of achievement levels (effective bitrate). The alarm amount of the PC's programmable breach timer which drives the apostle is anchored at 1,193.18 KHz.3 This almost low accentuation abundance banned the resolution and produces poor but apparent audio.5
This use of the PC apostle became anachronistic with the addition of the Complete Blaster and added complete cards.
With the PC speaker, this adjustment achieves bound affection playback; the affection depends on a accommodation amid the PWM carrier abundance (effective sample rate) and the cardinal of achievement levels (effective bitrate). The alarm amount of the PC's programmable breach timer which drives the apostle is anchored at 1,193.18 KHz.3 This almost low accentuation abundance banned the resolution and produces poor but apparent audio.5
This use of the PC apostle became anachronistic with the addition of the Complete Blaster and added complete cards.
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