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MIDI host: MacBook Pro mid-2015 over LAN/WLAN (macOS 11.4)
Bug description
I can get the MT32pi connected Ok. But as soon as I start playing, I get couple of notes right, then it slows down drastically and/or halts completely and then I get Unexp. MIDI status! error. Sometimes the music keeps playing, but on a slowed-down tempo.
If I stop the playback, the error goes away, but there are ghost-notes that stay playing. If I try to restart playback, it does the same (sometimes the tempo is slow from the beginning). Also sometimes one or more of the VU-meters stay on (with or without the channel actually playing anything) until power-cycled.
Steps to reproduce
Happens everytime I've tried so far.
Configuration file
# ________ _______ __# __ /_____ `. /____ `. /__`# ____ ____ __/ /____ _______) / ______) / ____ ______ __# / __ v __ `./__ _____//_____ < / _____. /____// ___ `. / /# / / / / / / / /____ _______) // /______ / /____/ // .__# /__/ /__/ /__/ \______//_________. /_________/ / ______. \____/# /////////////////////////////////////////////////////// / / //// /// // /# ```# mt32-pi.cfg: mt32-pi configuration file.# Default options are marked with an asterisk (*).# -----------------------------------------------------------------------------# System options# -----------------------------------------------------------------------------[system]# Enable or disable verbose startup output.## When enabled, outputs more information to the LCD when starting up.# This may hide the boot logo on smaller graphical displays; has no effect on# character displays.## Values: on, off*verbose = off
# Set the default synthesizer to be made active on startup.## If the default synthesizer is unavailable (e.g. missing ROMs or SoundFonts),# the first working synth is made active.## Values: mt32*, soundfont## mt32: Use mt32emu (Munt) for Roland MT-32 emulation# soundfont: Use FluidSynth for SoundFont synthesisdefault_synth = mt32
# Enable or disable support for USB devices.## Disable this to speed up boot time if you are not using any USB devices.## Values: on*, offusb = on
# Set the I2C baud rate/clock speed for all peripherals (Hz).## Most peripherals will work fine at the default speed (400KHz "fast mode"),# but larger LCD/OLED displays (e.g. 4-line I2C HD44780 and 64 pixel high# SSD1306) won't be able to refresh at 60FPS at the default setting.## Try increasing this value to 1000000 (1MHz) for a smoother LCD refresh rate.# If your display doesn't work, try backing off the speed 100KHz at a time# until it does.## Values: 100000-1000000 (400000*)i2c_baud_rate = 400000
# Set the timeout for power saving mode (seconds).## After the specified number of seconds of silence, the CPU clock speed will be# reduced, the audio device will be stopped, and and the LCD's backlight will# be turned off to save energy (certain I2C displays only).## Any MIDI activity will instantly bring the system out of power saving mode.## If set to 0, power saving mode is disabled.## Values: 0-3600 (300*)power_save_timeout = 300
# -----------------------------------------------------------------------------# MIDI options# -----------------------------------------------------------------------------[midi]# Set the baud rate used for GPIO MIDI.## For connecting to standard MIDI devices (i.e. via DIN cable), this should be# left at the default rate of 31250.## For connecting to PCs, set this to match the baud rate of the other host.# SoftMPU's serial MIDI mode, for example, uses a baud rate of 38400.## Values: 300-4000000 (31250*)gpio_baud_rate = 31250
# Enable or disable software "MIDI thru" on the GPIO Tx pin.## When enabled, all data received via the GPIO Rx pin will be re-transmitted# verbatim on the Tx pin. This may be useful for debugging or for passing MIDI# data through to another synth.## Values: on, off*gpio_thru = off
# Set the baud rate used for USB serial MIDI.## The same considerations from the gpio_baud_rate setting above apply here.## The range of valid baud rates may vary depending on the chipset of your USB# serial device, so the range of values suggested below may actually be greater.## Values: 9600-115200 (31250*)usb_serial_baud_rate = 31250
# -----------------------------------------------------------------------------# Audio options# -----------------------------------------------------------------------------[audio]# Select audio output device.## Values: pwm*, i2s## pwm: Use the headphone jack# hdmi: Use the HDMI port# i2s: Use an I2S DACoutput_device = i2s
# Sample rate of audio output (Hz).## mt32emu uses an internal sample rate of 32000Hz (just like the real hardware)# which is then resampled to this value.## FluidSynth renders at this sample rate directly.## Values: 32000-192000 (48000*)sample_rate = 48000
# Set audio rendering chunk size (samples).## A single stereo frame of audio has two samples, and so this value is double# the number of frames per chunk.# The smaller the chunk size, the lower the latency, but too low a value will# cause underruns (distortion artifacts).## Latency is a function of chunk size and sample rate, for example:# 256 samples / 2 channels / 48000Hz * 1000ms = 2.67ms of latency.# See documentation for recommended values for various Raspberry Pi models.## The minimum value varies depending on audio output device.# For PWM, the minimum is 2, for I2S the minimum is 32.# For HDMI, the minimum is 384, and will be rounded to the nearest multiple of# 384.## Values: 2-2048 (256*)chunk_size = 256
# Set address (hexadecimal) of I2C DAC control interface.## This will be used for the initialization sequence (see below) if enabled.# You can find the address of your DAC by using the i2cdetect utility in Linux.## Values: 00-80 (4c*)i2c_dac_address = 4c
# Select an initialization sequence for the DAC.## Some DACs require some initialization commands to be sent via I2C before they# will produce any sound.## Values: none*, pcm51xx## pcm51xx: for DACs based on PCM5121 or similar (e.g. PCM5141, PCM5242)i2c_dac_init = pcm51xx
# -----------------------------------------------------------------------------# Control options# -----------------------------------------------------------------------------[control]# Set the physical control scheme.## See documentation for GPIO pinouts/wiring details.## Values: none*, simple_buttons, simple_encoder## none: No physical controls# simple_buttons: Simple 4-button scheme# simple_encoder: Simple 2-button + rotary encoder schemescheme = simple_encoder
# Set the rotary encoder type (if used by control scheme).## Different rotary encoders may complete different fractions of a Gray-code# cycle per detent ("click").## If four clicks are needed for a single movement, try "quarter".# If two clicks are needed for a single movement, try "half".## Values: quarter, half, full*encoder_type = full
# Reverse the rotary encoder direction (if used by control scheme).## Some rotary encoders may have their CLK/DAT signals swapped, resulting in# a reversed rotation direction.## Use this option to correct the direction.## Values: on, off*encoder_reversed = off
# Enable or disable the I2C MiSTer control interface.## If using mt32-pi with a MiSTer FPGA system and custom hardware to interface# with MiSTer's User Port, enable this option to allow controlling mt32-pi via# the MiSTer's on-screen display.## Values: on, off*mister = off
# Set the timeout for switching SoundFonts (seconds).## When switching SoundFonts using the physical button, there is a short delay# before loading begins. This option allows you to set the number of seconds to# wait before loading.## Values: 0-3600 (3*)switch_timeout = 3
# -----------------------------------------------------------------------------# MT-32 emulator options# -----------------------------------------------------------------------------[mt32emu]# Set gain factor applied to synthesizer output channels.## This is independent of the master volume that can be set via MIDI SysEx or# the volume knob.## Values: 0.0-256.0 (1.0*)gain = 1.0
# Set gain factor applied to reverb wet output channels.## Values: 0.0-infinity (1.0*)reverb_gain = 1.0
# Select quality level for the resampler.## If set to none, audio output will sound wrong unless you set the sample rate# option to 32000Hz, which is the MT-32's native sample rate.## Values: none, fastest, fast, good*, bestresampler_quality = good
# Select initial MIDI channel assignment.## The MT-32 uses an unusual MIDI channel assignment by default. On a real MT-32# this is set using a button combination. Use this option to change the initial# channel assignment on startup.## Values: standard*, alternate## standard: Parts 1-8 = MIDI channels 2-9, Rhythm part = MIDI channel 10# alternate: Parts 1-8 = MIDI channels 1-8, Rhythm part = MIDI channel 10midi_channels = standard
# Select initial ROM set to use.## If multiple ROM sets are available, this option determines which set to use# on startup. If the ROM set specified here is unavailable, the first available# set is used instead.## Values: old*, new, cm32lrom_set = old
# -----------------------------------------------------------------------------# SoundFont synthesizer options# -----------------------------------------------------------------------------[fluidsynth]# Set the initial SoundFont to use.## If multiple SoundFonts are available, this option determines which SoundFont# to use on startup.## On startup, the "soundfonts" directory is scanned for valid SoundFonts, which# are added to a list and sorted into alphabetical order.## This setting is a zero-indexed offset into that list (i.e. 0 is the first,# 1, is the second, and so on).## If the index specified is unavailable, the first available SoundFont will be# used.## Values: 0-255 (0*)soundfont = 0
# Set the master volume gain.## The default is a low value to avoid clipping when many notes are playing at# once.## The value should be a decimal value between 0.0 and 10.0. Values outside this# range will be clamped.## Values: 0.0-10.0 (0.2*)gain = 0.2
# Set the maximum number of voices that can be played simultaneously.## Depending on the complexity of your SoundFont, you may need to reduce this# value to prevent audio buffer underruns (distortion) when playing music# featuring lots of notes being played at once.## On the other hand, Raspberry Pi 4 users may want to try raising this value as# it has a more powerful CPU.## N.B. larger file size of the SoundFont does not imply higher CPU usage.# SoundFonts that use more real-time effects (modulators) are more likely to# require a reduction in polyphony.## Values: 1-65535 (256*)polyphony = 256
# The following settings set the default parameters for FluidSynth's reverb and# chorus effects.## Each setting can be overridden on a per-SoundFont basis by adding extra# sections, e.g. [fluidsynth.soundfont.x], where x is the zero-based index of# the SoundFont. See the next section for an example.## Full descriptions and valid value ranges for each setting can be found in the# FluidSynth documentation: https://www.fluidsynth.org/api/fluidsettings.xmlreverb = on
reverb_damping = 0.0
reverb_level = 0.9
reverb_room_size = 0.2
reverb_width = 0.5
chorus = on
chorus_depth = 8.0
chorus_level = 2.0
chorus_voices = 3
chorus_speed = 0.3
# -----------------------------------------------------------------------------# FluidSynth effects profile for SoundFont 0 (GeneralUser GS)# -----------------------------------------------------------------------------[fluidsynth.soundfont.0]# The following settings are recommended for GeneralUser GS by its author.reverb = on
reverb_damping = 0.19
reverb_level = 0.5
reverb_room_size = 0.7
reverb_width = 0.75
chorus = on
chorus_depth = 4.5
chorus_level = 0.5
chorus_voices = 3
chorus_speed = 0.35
# -----------------------------------------------------------------------------# LCD/OLED display options# -----------------------------------------------------------------------------[lcd]# Select LCD driver.## Note that LCDs connected via I2C, you must also set the correct address for# your device via the i2c_lcd_address option. Consult its datasheet, or see# our documentation for tested models and their configurations.## Values: none*, hd44780_4bit, hd44780_i2c, sh1106_i2c, ssd1306_i2c## none: No LCD# hd44780_4bit: Hitachi HD44780 or compatible (e.g. WS0010, RS0010) character# LCD connected to GPIO pins in 4-bit mode (see documentation for# pinout)# hd44780_i2c: As above, but using an I2C "backpack"# sh1106_i2c: Small I2C-based OLED graphical display (usually 1.3")# ssd1306_i2c: Small I2C-based OLED graphical display (usually 0.96")type = hd44780_i2c
# Set the width of the LCD.## If the display is a character display, this value is measured in characters.# Otherwise, for a graphical display, this is measured in pixels.## Note that not all dimension settings are valid; see documentation for valid# configurations for each LCD driver.## Values: 20-128 (128*)width = 16
# Set the height of the LCD.## Same characters vs. pixels considerations as for width.## Values: 2-64 (32*)height = 2
# Set address (hexadecimal) of I2C LCD.## This will be used to communicate with LCDs connected via the I2C bus.## Values: 00-80 (3c*)i2c_lcd_address = 27
# Rotate the display output (graphical LCDs only).## Some graphical displays support rotation. Use this option if you need to turn# the display around.## Values: normal*, inverted## normal: No rotation# inverted: The display output is upside downrotation = normal
# -----------------------------------------------------------------------------# Network options# -----------------------------------------------------------------------------[network]# Select the network mode.## For setting your Wi-Fi SSID and encryption key, see wpa_supplicant.conf.# Note that if using Ethernet on a Raspberry Pi 3B/3B+, USB must be enabled.## off: Disable networking# ethernet: Enable using the Ethernet interface# wifi: Enable using the the Wi-Fi interface## Values: off*, ethernet, wifimode = wifi
# Enable or disable DHCP for configuring the network.## If disabled, the manual settings below will be used to configure your network# interface instead.## Values: on*, offdhcp = on
# Manual settings for configuring the network interface.## These settings will be ignored if DHCP is enabled.## Values: correctly-formatted IP address/subnet mask, e.g. AAA.BBB.CCC.DDD# (four numbers in the range 0-255 separated by periods)ip_address = 192.168.1.100
subnet_mask = 255.255.255.0
default_gateway = 192.168.1.1
dns_server = 192.168.1.1
# Set the network hostname.## Values: a valid hostname using ASCII letters 'a' to 'z', digits 0-9, and# hyphens (*mt32-pi)hostname = mt32-pi
# Enable or disable the RTP-MIDI/AppleMIDI server.## This allows you to send MIDI data to mt32-pi over the network using macOS'# built-in network MIDI features, or rtpMIDI by Tobias Erichsen on Windows.## Values: on*, offrtp_midi = on
Additional information
Same thing happens on both wired and wireless connection.
I couldn't see any adjustables in the macOS MIDI-controls so don't know if there was anything else to try.
(Getting this was a great surprise! I had not even known about MIDI over lan/wlan, this would be great for casual playback so I wouldn't need to dig out my USB-MIDI interface and connect everything :)
The text was updated successfully, but these errors were encountered:
There have been several fixes since this was reported and I have had confirmation from a tester that RTP-MIDI is working fine on macOS with the latest release of mt32-pi and ScummVM on the Mac, both wired and wireless.
Closing for now, but feel free to re-open if you think there is a bug.
Hardware and software
Bug description
I can get the MT32pi connected Ok. But as soon as I start playing, I get couple of notes right, then it slows down drastically and/or halts completely and then I get Unexp. MIDI status! error. Sometimes the music keeps playing, but on a slowed-down tempo.
If I stop the playback, the error goes away, but there are ghost-notes that stay playing. If I try to restart playback, it does the same (sometimes the tempo is slow from the beginning). Also sometimes one or more of the VU-meters stay on (with or without the channel actually playing anything) until power-cycled.
Steps to reproduce
Happens everytime I've tried so far.
Configuration file
Additional information
Same thing happens on both wired and wireless connection.
I couldn't see any adjustables in the macOS MIDI-controls so don't know if there was anything else to try.
(Getting this was a great surprise! I had not even known about MIDI over lan/wlan, this would be great for casual playback so I wouldn't need to dig out my USB-MIDI interface and connect everything :)
The text was updated successfully, but these errors were encountered: