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Adrien MALINGREY 2025-05-02 17:20:18 +02:00
parent c03110cfc1
commit a4b1c6765a
1 changed files with 53 additions and 64 deletions
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midi2beep.py
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@ -2,12 +2,12 @@
###
#
# midi2beep.py
# midi4beep.py
# Author: Adrien MALINGREY <adrien@malingrey.fr>
#
# Play MIDI files with PC speaker using the beep command.
#
# Usage: python3 midi2beep.py <midi file>
# Usage: python3 midi4beep.py <midi file> [channel]
#
# Dependencies:
# - Python 3
@ -21,75 +21,64 @@ import subprocess
import math
import mido
class PCSpeaker(mido.ports.BaseOutput):
def __init__(self, channel=-1):
super().__init__(self)
self.channel = channel
self.note_on = 0
self.process = None
def _send(self, message):
if (message.type == "note_on" or message.type == "note_off") \
and (message.channel == self.channel or (self.channel == -1 and message.channel != 9)):
if message.type == "note_on" and message.velocity and message.note > self.note_on:
self.process = subprocess.Popen(
[
"beep",
"-f",
str(int(440 * math.pow(2, (message.note - 69) / 12))),
"-l100000",
]
)
self.note_on = message.note
elif self.process and (message.type == "note_off" or (message.type == "note_on" and message.note == self.note_on)):
self.process.terminate()
self.process = None
self.note_on = 0
def reset(self):
if self.process:
self.process.terminate()
self.process = None
self.note_on = 0
def panic(self):
if self.process:
self.process.kill()
self.process = None
self.note_on = 0
def _close(self):
self.reset()
if len(sys.argv) < 2:
print("Usage: python3 midi2beep.py <midi file> [channel]")
print("Usage: python3 midi4beep.py <midi file> [channel]")
sys.exit(1)
arpege = 0.015#ms
FREQUENCIES = [
# C, C#, D, D#, E, F, F#, G, G#, A, A#, B
16.35, 17.32, 18.35, 19.45, 20.6, 21.83, 23.12, 24.5, 25.96, 27.5, 29.14, 30.87,
32.7, 34.65, 36.71, 38.89, 41.2, 43.65, 46.25, 49, 51.91, 55, 58.27, 61.74,
65.41, 69.3, 73.42, 77.78, 82.41, 87.31, 92.5, 98, 103.83, 110, 116.54, 123.47,
130.81, 138.59, 146.83, 155.56, 164.81, 174.61, 185, 196, 207.65, 220, 233.08, 246.94,
261.63, 277.18, 293.66, 311.13, 329.63, 349.23, 369.99, 392, 415.3, 440, 466.16, 493.88,
523.25, 554.37, 587.33, 622.25, 659.26, 698.46, 739.99, 783.99, 830.61, 880, 932.33, 987.77,
1046.5, 1108.73, 1174.66, 1244.51, 1318.51, 1396.91, 1479.98, 1567.98, 1661.22, 1760, 1864.66, 1975.53,
2093, 2217.46, 2349.32, 2489.02, 2637.02, 2793.83, 2959.96, 3135.96, 3322.44, 3520, 3729.31, 3951.07,
4186.01, 4434.92, 4698.64, 4978.03, 5274.04, 5587.65, 5919.91, 6271.93, 6644.88, 7040, 7458.62, 7902.13,
]
midi_file_path = sys.argv[1]
path = sys.argv[1]
try:
mid=mido.MidiFile(midi_file_path)
mid = mido.MidiFile(path)
except TypeError:
mido.read_syx_file(midi_file_path)
mido.read_syx_file(path)
if len(sys.argv) > 2:
channel = int(sys.argv[2])
else:
channel = -1
time = 0
note_on = 0
start = 0
tempo = 500000
try:
for msg in mid:
time += msg.time
if msg.type == "track_name":
print(msg.name)
if msg.type == "set_tempo":
tempo = msg.tempo
if (msg.type == "note_on" or msg.type == "note_off") and (msg.channel == channel or (channel == -1 and msg.channel != 9)):
if msg.time:
lines = math.ceil(4e6 * (time - start) / tempo)
if note_on:
for _ in range(lines):
print(note_on * " " + "█")
subprocess.run(["beep", f"-f{FREQUENCIES[note_on]:.0f}", f"-l{1000*(time - start):.0f}"])
elif start:
for _ in range(lines):
print()
subprocess.run(["sleep", f"{0.8*(time - start)}"])
if msg.type == "note_on" and msg.velocity:
if msg.time or msg.note > note_on:
note_on = msg.note
else:
note_on = 0
start = time
lines = math.ceil(4e6 * (time - start) / tempo)
for _ in range(lines):
print(note_on * " " + "█")
subprocess.run(["beep", f"-f{FREQUENCIES[note_on]:.0f}", f"-l{1000*(time - start):.0f}"])
except KeyboardInterrupt:
subprocess.run(["beep", "-f1", "-l1"])
with PCSpeaker(channel) as speaker:
for msg in mid.play():
speaker.send(msg)