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introlab / odas

ODAS: Open embeddeD Audition System
MIT License
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Question about snk_hops_construct(...) #214

Closed nacho-bodega closed 3 years ago

nacho-bodega commented 4 years ago

Hello,

I have a question about snk_hops_construct() function in snk_hops.c file. There are malloc and memset functions for obj->buffer.

obj->buffer = (char ) malloc(sizeof(char) msg_hops_config->nChannels msg_hops_config->hopSize 4); memset(obj->buffer, 0x00, sizeof(char) msg_hops_config->nChannels msg_hops_config->hopSize * 4);

Where does the number 4 come from? Because odas_web uses 4 channel audio recorder? Are you expecting at least 4 tracking signals?

I'm trying to read port10000 signals but having a hard time from the server-side.

Thanks

nacho-bodega commented 3 years ago

Oh, I think I understand now.

pcm_normalized2signedXXbits(sample, nBytes, obj->bytes) is capable to set upto 32bits audio which requires a 4 bytes( char) for each channel.