Anyone have an idea how I can sum (add_ff) multiple, gated streams into a single stream? For example, the gr-dsd block gates it's output when there is nothing to decode. I can sum multiple decoders together for a single audio stream, but the add_ff only processes when ALL inputs have a sample. So what I need is a block that passes all samples, and outputs zeros (or repeats last sample) when input has halted. Maybe there is a trick to do that with an existing block.
Thanks, Lou
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