artrag / voicenc_scc

Voice encoder for SCC chip. The speech is segmented in voiced and unvoiced segment. The pitch is extracted in voiced segments and used to compute a a mean waveform for that segment. Unvoiced segments are approximated using the max of their spectrum. On standard SCC up to 4 samples can be played at the same time.

voicenc_scc

Voice encoder for SCC chip in Matlab. The speech is segmented in voiced and unvoiced segments. In voiced segments the pitch is extracted and used to compute an average waveform for that segment. Unvoiced segments are approximated by using the max peach of their spectrum. On standard SCC up to 4 samples can be played at the same time.

To run the encoder you need Matlab 2017 and the toolbox sap-voicebox

Download the full directory sap-voicebox and install the toolbox in your Matlab path Download the full directory voicenc_scc

Replace the audio files in subdir \wav with your own

RUN matlab Make sure that "sap-voicebox-master\voicebox" is in your matlab path Move to voicenc_scc\

Run voicenc_scc.m All coded data will be stored in \data and the sccLOFI_1c.rom will be updated

Run the rom in an emulator (Mapper ASCII) with an SCC in the second slot Type ? USR(n) to run effect n

Up to 4 samples can be played at the same time.