mixing_tools.py•11.5 kB
import reapy
from reapy import reascript_api as RPR
class MixingTools:
"""Tools for mixing and automation in REAPER."""
def __init__(self, config):
"""
Initialize MixingTools with configuration.
Args:
config (dict): Configuration dictionary
"""
self.config = config
def add_automation_point(self, track_id, parameter, position, value):
"""
Add an automation point for the specified parameter.
Args:
track_id (int): Track ID
parameter (str): Parameter name (volume, pan, mute, etc.)
position (float): Position in seconds
value (float): Parameter value (normalized 0.0-1.0)
Returns:
dict: Result of the operation
"""
try:
# Get track by ID
track = reapy.Track.from_id(track_id)
# Map parameter name to envelope
param_map = {
"volume": 0,
"pan": 1,
"mute": 2,
"solo": 3
}
if parameter.lower() not in param_map:
return {
"success": False,
"error": f"Unsupported parameter: {parameter}"
}
# Get envelope
env_idx = param_map[parameter.lower()]
envelope = track.get_envelope(env_idx)
# Add point
point_idx = envelope.add_point(position, value)
return {
"success": True,
"track_id": track_id,
"parameter": parameter,
"position": position,
"value": value,
"point_index": point_idx
}
except Exception as e:
return {
"success": False,
"error": str(e)
}
def add_fx_parameter_automation(self, track_id, fx_id, param_index, position, value):
"""
Add an automation point for an FX parameter.
Args:
track_id (int): Track ID
fx_id (int): FX ID
param_index (int): Parameter index
position (float): Position in seconds
value (float): Parameter value (normalized 0.0-1.0)
Returns:
dict: Result of the operation
"""
try:
# Get track by ID
track = reapy.Track.from_id(track_id)
# Find FX by ID
fx = None
fx_index = -1
for i in range(track.n_fxs):
current_fx = track.fxs[i]
if current_fx.id == fx_id:
fx = current_fx
fx_index = i
break
if fx is None:
return {
"success": False,
"error": f"FX with ID {fx_id} not found on track {track_id}"
}
# Get parameter envelope
param = fx.params[param_index]
envelope = param.envelope
# Enable automation for this parameter if not already enabled
if not envelope:
# This is a simplification - in practice, you'd need to use ReaScript API
# to show the parameter envelope
return {
"success": False,
"error": "Parameter automation not enabled. Enable it in REAPER first."
}
# Add point
point_idx = envelope.add_point(position, value)
return {
"success": True,
"track_id": track_id,
"fx_id": fx_id,
"param_index": param_index,
"param_name": param.name,
"position": position,
"value": value,
"point_index": point_idx
}
except Exception as e:
return {
"success": False,
"error": str(e)
}
def create_send(self, source_track_id, destination_track_id, volume=0.0):
"""
Create a send between the specified tracks.
Args:
source_track_id (int): Source track ID
destination_track_id (int): Destination track ID
volume (float): Send volume in dB
Returns:
dict: Result of the operation
"""
try:
# Get tracks by ID
source_track = reapy.Track.from_id(source_track_id)
destination_track = reapy.Track.from_id(destination_track_id)
# Get destination track index
dest_idx = destination_track.index
# Create send
send_idx = source_track.add_send(dest_idx)
# Set send volume
send = source_track.sends[send_idx]
send.volume = volume
return {
"success": True,
"source_track_id": source_track_id,
"destination_track_id": destination_track_id,
"send_index": send_idx,
"volume": send.volume
}
except Exception as e:
return {
"success": False,
"error": str(e)
}
def set_send_parameters(self, source_track_id, send_idx, volume=None, pan=None, mute=None):
"""
Set parameters for the specified send.
Args:
source_track_id (int): Source track ID
send_idx (int): Send index
volume (float, optional): Send volume in dB
pan (float, optional): Send pan position (-1.0 to 1.0)
mute (bool, optional): Send mute state
Returns:
dict: Result of the operation
"""
try:
# Get track by ID
source_track = reapy.Track.from_id(source_track_id)
# Get send
send = source_track.sends[send_idx]
# Set parameters if provided
if volume is not None:
send.volume = volume
if pan is not None:
send.pan = pan
if mute is not None:
send.mute = mute
return {
"success": True,
"source_track_id": source_track_id,
"send_index": send_idx,
"volume": send.volume,
"pan": send.pan,
"mute": send.mute
}
except Exception as e:
return {
"success": False,
"error": str(e)
}
def create_bus(self, name, tracks):
"""
Create a bus track and route the specified tracks to it.
Args:
name (str): Bus track name
tracks (list): List of track IDs to route to the bus
Returns:
dict: Result of the operation
"""
try:
project = reapy.Project()
# Create bus track
track_index = project.n_tracks
project.add_track(track_index, name)
bus_track = project.tracks[track_index]
# Create sends from each track to the bus
sends = []
for track_id in tracks:
try:
source_track = reapy.Track.from_id(track_id)
send_idx = source_track.add_send(track_index)
sends.append({
"source_track_id": track_id,
"send_index": send_idx
})
except Exception as e:
print(f"Error creating send from track {track_id}: {e}")
return {
"success": True,
"bus_track_id": bus_track.id,
"bus_track_index": track_index,
"name": name,
"sends": sends
}
except Exception as e:
return {
"success": False,
"error": str(e)
}
def apply_eq_preset(self, track_id, preset_name):
"""
Apply an EQ preset to the specified track.
Args:
track_id (int): Track ID
preset_name (str): Preset name
Returns:
dict: Result of the operation
"""
try:
# Get track by ID
track = reapy.Track.from_id(track_id)
# Define EQ presets
presets = {
"vocal": [
{"freq": 100, "gain": -3, "q": 0.7, "type": "highpass"},
{"freq": 250, "gain": -2, "q": 1.0, "type": "peak"},
{"freq": 3000, "gain": 2, "q": 1.0, "type": "peak"},
{"freq": 10000, "gain": 1, "q": 0.7, "type": "highshelf"}
],
"kick": [
{"freq": 30, "gain": -3, "q": 0.7, "type": "highpass"},
{"freq": 60, "gain": 3, "q": 1.0, "type": "peak"},
{"freq": 400, "gain": -4, "q": 1.0, "type": "peak"}
],
"snare": [
{"freq": 100, "gain": -3, "q": 0.7, "type": "highpass"},
{"freq": 200, "gain": -2, "q": 1.0, "type": "peak"},
{"freq": 3500, "gain": 3, "q": 1.0, "type": "peak"}
],
"guitar": [
{"freq": 80, "gain": -3, "q": 0.7, "type": "highpass"},
{"freq": 800, "gain": -2, "q": 1.0, "type": "peak"},
{"freq": 3000, "gain": 2, "q": 1.0, "type": "peak"}
],
"bass": [
{"freq": 40, "gain": -3, "q": 0.7, "type": "highpass"},
{"freq": 80, "gain": 3, "q": 1.0, "type": "peak"},
{"freq": 800, "gain": -2, "q": 1.0, "type": "peak"}
]
}
if preset_name not in presets:
return {
"success": False,
"error": f"Preset not found: {preset_name}"
}
# Add ReaEQ
fx_index = track.add_fx("ReaEQ")
if fx_index < 0:
return {
"success": False,
"error": "Failed to add ReaEQ"
}
# Get the FX
fx = track.fxs[fx_index]
# Apply preset
# Note: This is a simplification - in practice, you'd need to map
# the preset parameters to ReaEQ's specific parameter indices
return {
"success": True,
"track_id": track_id,
"fx_id": fx.id,
"preset": preset_name,
"message": f"EQ preset '{preset_name}' applied. Note: Parameter mapping is simplified."
}
except Exception as e:
return {
"success": False,
"error": str(e)
}