Within the data block, the software differentiates between a "0" bit and a "1" bit by measuring the duration of the audio pulse:
Standard Sinclair saving routines used a predictable format: a long "pilot tone" (the steady buzzing sound heard at the start of loading), followed by a sync pulse, and then the actual data bytes. The computer expected these signals to arrive at a strict speed of roughly 1500 baud (bits per second). How ZX Copy Software Operated zx copy software work
This method completely failed if a game used custom loading routines or if the total data exceeded the free RAM space available after loading the copy software itself. 2. Micro-Copying and Block-by-Block Transfers Within the data block, the software differentiates between
The software acts as a management and decoding bridge between the handheld hardware and the computer. If you want, let me know: The software
If you are looking at specific vintage utilities, I can break down the exact loading instructions for your system. If you want, let me know:
The software cuts off extremely low frequencies (like motor rumble) and extremely high frequencies (like tape hiss) that fall outside the spectrum of the actual data signal.