Which games exactly, have no sound.
Metal Slug 1 or which part.

Are you using the retroarch core version of FBA or the Binary version?

Try another bios? I’m rally not sure what it could be. Sorry!

Mmmm. It should be fine with sound. Does no sound play with both neo geo and CPS roms?

are the m1_decrypted.bin files somewhere so you can add them to the rom? if so where? ive tried one van emuparadise but I still get a “m1-rom error” for both ms 4 and 5

The gngeo? That doesnt work at all (In my case) or the fba version that laggs in video and sound? What tweaks are necessary other then overclocking to make retroarch fba version work smoother/better?

input_player1_joypad_index = 0
input_player1_b_btn = 1
input_player1_a_btn = 2
input_player1_y_btn = 0
input_player1_x_btn = 3
input_player1_l_btn = 4
input_player1_r_btn = 5
input_player1_start_btn = 9
input_player1_select_btn = 8
input_player1_up_btn = “h0up”
input_player1_down_btn = “h0down”
input_player1_left_btn = “h0left”
input_player1_right_btn = “h0right”

input_enable_hotkey_btn = 9
input_exit_emulator_btn = 8

input_enable_hotkey_btn = 9
input_save_state_btn = 4

input_enable_hotkey_btn = 9
input_load_state_btn = 5

input_player1_left_axis = -0
input_player1_right_axis = +0
input_player1_up_axis = -1
input_player1_down_axis = +1

audio_out_rate = 44100
video_threaded = true

# audio_enable = true
# audio_driver = sdl
# audio_sync = true
# rewind_enable = false

Ive tried with the above settings and with the settings that are currently blocked off but the game just lags a lot. I’ve tried the max overclock aswell and still no effect… am i missing something?

To get sound working in PiFBA with Metal Slug 5: Google ‘Metal Slug 5 Decrypted C’ and combine the contents of that zip file with the contents of the regular ROM and re-zip as mslug5.zip The process is the same for Metal Slug 4.

Hope this helps