104 } combine_method = sox_default;  variable
455                         (is_serial(combine_method) && input_count > 1)))  in progress_to_next_input_file()
501   if (is_serial(combine_method))  in combiner_start()
530   if (is_serial(combine_method)) {  in combiner_drain()
536           if (combine_method == sox_sequence && !can_segue(current_input))  in combiner_drain()
553       if (combine_method == sox_mix || combine_method == sox_mix_power) {  in combiner_drain()
563       } /* sox_mix */ else if (combine_method == sox_multiply)  {  in combiner_drain()
586   if (input_eof && is_parallel(combine_method))  in combiner_drain()
597   if (is_parallel(combine_method)) {  in combiner_stop()
1540       is_serial(combine_method) && since(&then, 1.0, sox_true))  in sigint()
1576   if (combine_method == sox_sequence) {  in calculate_combiner_signal_parameters()
1612       if (combine_method == sox_concatenate) {  in calculate_combiner_signal_parameters()
1615       } else if (combine_method != sox_merge)  in calculate_combiner_signal_parameters()
1623       combine_method == sox_merge? total_channels : max_channels;  in calculate_combiner_signal_parameters()
1625     if (combine_method == sox_concatenate)  in calculate_combiner_signal_parameters()
1627     else if (is_parallel(combine_method))  in calculate_combiner_signal_parameters()
1635   sox_bool known_length = combine_method != sox_sequence;  in calculate_output_signal_parameters()
1643     if (combine_method == sox_concatenate)  in calculate_output_signal_parameters()
2295         combine_method = enum_option(optstate.arg, optstate.lngind, combine_methods);  in parse_gopts_and_fopts()
2371     case 'm': combine_method = sox_mix; break;  in parse_gopts_and_fopts()
2372     case 'M': combine_method = sox_merge; break;  in parse_gopts_and_fopts()
2373     case 'T': combine_method = sox_multiply; break;  in parse_gopts_and_fopts()
2878   if (combine_method == sox_default)  in main()
2879     combine_method = is_player? sox_sequence : sox_concatenate;  in main()
2882   if (combine_method == sox_sequence && input_count == 1)  in main()
2883     combine_method = sox_concatenate;  in main()
2910     if (combine_method == sox_mix && !uservolume)  in main()
2912     else if (combine_method == sox_mix_power && !uservolume)  in main()