一位开发者在ZX Spectrum计算机上成功实现了1-bit蜂鸣器音频技术的多种方案1。在ZX Spectrum 48K型号（CPU速度为3.5 MHz）的硬件限制下1，该开发者测试了PCM回放、琶音、软件混音和脉冲宽度调制（PWM）等多种技术方案1。
其中，PCM回放采样率可达16kHz，每秒消耗约2KB内存1；琶音方式通过快速切换频率在单个输出通道产生和弦效果1；软件混音方式每个循环周期消耗338个CPU周期1。在对比的几种方案中，软件混音效果最佳1。相比之下，PWM技术在实现时遇到困难，需要约50微秒（175个CPU周期）的脉冲宽度精度1，开发者目前尚未成功实现，计划参考前人经验进一步研究1。
该开发者在Fuse模拟器中对这些方案进行了测试1，并获得了Sinclair专家社区的建议1。
A developer has successfully implemented multiple approaches to 1-bit beeper audio synthesis on the ZX Spectrum computer. 1 Three techniques proved viable: PCM playback, arpeggiation, and software mixing, with the latter delivering the best results. 1 The ZX Spectrum 48K model's 3.5 MHz CPU enabled PCM playback at sampling rates up to 16 kHz, consuming approximately 2 KB of memory per second. 1 Arpeggiation produced chord effects by rapidly switching frequencies through a single output channel, while software mixing operated within a cycle budget of 338 CPU cycles per loop. 1
The developer also attempted pulse-width modulation (PWM) but did not achieve success with this approach, which would have required approximately 50 microseconds (175 CPU cycles) of pulse width precision. 1 Testing was conducted in the Fuse emulator, and the developer consulted with the Sinclair expert community for guidance on further refinement. 1
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