scratch_buffers->ensure_buffers (*t, count, size);
mix_buffers->ensure_buffers (*t, count, size);
silent_buffers->ensure_buffers (*t, count, size);
scratch_buffers->ensure_buffers (*t, count, size);
mix_buffers->ensure_buffers (*t, count, size);
silent_buffers->ensure_buffers (*t, count, size);