DEBUG_TRACE (DEBUG::AudioPlayback, string_compose ("Region %1 memcpy into buf @ %2 + %3, from mixdown buffer @ %4 + %5, len = %6 cnt was %7\n",
name(), buf, fade_in_limit, mixdown_buffer, fade_in_limit, N, cnt));
memcpy (buf + fade_in_limit, mixdown_buffer + fade_in_limit, N * sizeof (Sample));
DEBUG_TRACE (DEBUG::AudioPlayback, string_compose ("Region %1 memcpy into buf @ %2 + %3, from mixdown buffer @ %4 + %5, len = %6 cnt was %7\n",
name(), buf, fade_in_limit, mixdown_buffer, fade_in_limit, N, cnt));
memcpy (buf + fade_in_limit, mixdown_buffer + fade_in_limit, N * sizeof (Sample));