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Low Quality Audio with XR Elite #3154

@JHawkley

Description

@JHawkley

Description

Audio streaming to my XR Elite headset is tinny, sharp, and seems over-driven. When people in VRChat use an "es" sound in a word, it sounds like a sharp static that makes my skin crawl. Music sounds distant and hissy during busier parts. This issue is independent of any software, affecting audio regardless of the source.

I can't really find any setting, in ALVR or Windows, that seems to affect the quality of the audio reaching the headset. I've tried changing my default audio output device to no avail; it all sounds the same.

When using Vive Hub Streaming, audio comes through rich and warm, just like it would through my speakers or earbuds.

General Troubleshooting

  • I carefully followed the instructions in the README and successfully completed the setup wizard
  • I read the ALVR GitHub Wiki

Environment

Hardware

HMD:
HTC Vive XR Elite (with face-tracking module)

CPU:
AMD Ryzen 7 9800X3D

GPU:
NVidia GeForce RTX 4070 Ti SUPER

GPU Driver Version:
581.29

Audio:

  • Speakers - ODAC (Default)
  • Realtek Digital Output - Back Panel Audio Port
  • 27GN950 - NVIDIA High Definition Audio via HDMI
  • Line 1 - Virtual Audio Cable
  • Speakers - VIVE Virtual Audio Device

The issue occurs regardless of which of these outputs are used as the source for ALVR's audio passthrough.

Installation

ALVR Version:
20.14.1

ALVR Settings File:

{
  "server_version": "20.14.1",
  "openvr_config": {
    "eye_resolution_width": 2144,
    "eye_resolution_height": 2144,
    "target_eye_resolution_width": 2144,
    "target_eye_resolution_height": 2144,
    "tracking_ref_only": false,
    "enable_vive_tracker_proxy": false,
    "minimum_idr_interval_ms": 100,
    "adapter_index": 0,
    "codec": 0,
    "h264_profile": 0,
    "refresh_rate": 90,
    "use_10bit_encoder": false,
    "use_full_range_encoding": true,
    "encoding_gamma": 1.0,
    "enable_hdr": false,
    "force_hdr_srgb_correction": false,
    "clamp_hdr_extended_range": false,
    "enable_amf_pre_analysis": false,
    "enable_vbaq": true,
    "enable_amf_hmqb": false,
    "use_amf_preproc": false,
    "amf_preproc_sigma": 4,
    "amf_preproc_tor": 7,
    "encoder_quality_preset": 1,
    "rate_control_mode": 0,
    "filler_data": false,
    "entropy_coding": 1,
    "force_sw_encoding": false,
    "sw_thread_count": 0,
    "controller_is_tracker": false,
    "controllers_enabled": true,
    "body_tracking_vive_enabled": false,
    "body_tracking_has_legs": false,
    "enable_foveated_encoding": true,
    "foveation_center_size_x": 0.45,
    "foveation_center_size_y": 0.4,
    "foveation_center_shift_x": 0.4,
    "foveation_center_shift_y": 0.1,
    "foveation_edge_ratio_x": 4.0,
    "foveation_edge_ratio_y": 5.0,
    "enable_color_correction": false,
    "brightness": 0.0,
    "contrast": 0.0,
    "saturation": 0.0,
    "gamma": 0.0,
    "sharpening": 0.0,
    "linux_async_compute": false,
    "linux_async_reprojection": false,
    "nvenc_quality_preset": 3,
    "nvenc_tuning_preset": 2,
    "nvenc_multi_pass": 1,
    "nvenc_adaptive_quantization_mode": 1,
    "nvenc_low_delay_key_frame_scale": -1,
    "nvenc_refresh_rate": -1,
    "enable_intra_refresh": false,
    "intra_refresh_period": -1,
    "intra_refresh_count": -1,
    "max_num_ref_frames": -1,
    "gop_length": -1,
    "p_frame_strategy": -1,
    "nvenc_rate_control_mode": -1,
    "rc_buffer_size": -1,
    "rc_initial_delay": -1,
    "rc_max_bitrate": -1,
    "rc_average_bitrate": -1,
    "nvenc_enable_weighted_prediction": false,
    "capture_frame_dir": "/tmp",
    "amd_bitrate_corruption_fix": false,
    "use_separate_hand_trackers": true,
    "_controller_profile": 2,
    "_server_impl_debug": false,
    "_client_impl_debug": false,
    "_server_core_debug": false,
    "_client_core_debug": false,
    "_connection_debug": false,
    "_sockets_debug": false,
    "_server_gfx_debug": false,
    "_client_gfx_debug": false,
    "_encoder_debug": false,
    "_decoder_debug": false
  },
  "client_connections": {
    "1183.client": {
      "display_name": "VIVE XR Elite",
      "current_ip": null,
      "manual_ips": [],
      "trusted": true,
      "connection_state": "Disconnected"
    }
  },
  "session_settings": {
    "video": {
      "passthrough": {
        "enabled": false,
        "content": {
          "Blend": {
            "premultiplied_alpha": true,
            "threshold": 0.5
          },
          "RgbChromaKey": {
            "red": 0,
            "green": 255,
            "blue": 0,
            "distance_threshold": 85,
            "feathering": 0.05
          },
          "HsvChromaKey": {
            "hue_start_max_deg": 70.0,
            "hue_start_min_deg": 80.0,
            "hue_end_min_deg": 160.0,
            "hue_end_max_deg": 170.0,
            "saturation_start_max": 0.2,
            "saturation_start_min": 0.3,
            "saturation_end_min": 1.0,
            "saturation_end_max": 1.1,
            "value_start_max": 0.0,
            "value_start_min": 0.1,
            "value_end_min": 1.0,
            "value_end_max": 1.1
          },
          "variant": "Blend"
        }
      },
      "bitrate": {
        "gui_collapsed": false,
        "mode": {
          "ConstantMbps": 100,
          "Adaptive": {
            "gui_collapsed": true,
            "saturation_multiplier": 0.95,
            "max_throughput_mbps": {
              "enabled": false,
              "content": 100
            },
            "min_throughput_mbps": {
              "enabled": false,
              "content": 5
            },
            "max_network_latency_ms": {
              "enabled": false,
              "content": 8
            },
            "encoder_latency_limiter": {
              "enabled": true,
              "content": {
                "max_saturation_multiplier": 0.9
              }
            },
            "decoder_latency_limiter": {
              "enabled": true,
              "content": {
                "gui_collapsed": false,
                "max_decoder_latency_ms": 30,
                "latency_overstep_frames": 90,
                "latency_overstep_multiplier": 0.99
              }
            }
          },
          "variant": "ConstantMbps"
        },
        "adapt_to_framerate": {
          "enabled": false,
          "content": {
            "framerate_reset_threshold_multiplier": 2.0
          }
        },
        "history_size": 256,
        "image_corruption_fix": false
      },
      "preferred_codec": {
        "variant": "H264"
      },
      "foveated_encoding": {
        "enabled": true,
        "content": {
          "gui_collapsed": true,
          "force_enable": false,
          "center_size_x": 0.45,
          "center_size_y": 0.4,
          "center_shift_x": 0.4,
          "center_shift_y": 0.1,
          "edge_ratio_x": 4.0,
          "edge_ratio_y": 5.0
        }
      },
      "color_correction": {
        "enabled": false,
        "content": {
          "brightness": 0.0,
          "contrast": 0.0,
          "saturation": 0.5,
          "gamma": 1.0,
          "sharpening": 0.5
        }
      },
      "max_buffering_frames": 2.0,
      "buffering_history_weight": 0.9,
      "enforce_server_frame_pacing": true,
      "encoder_config": {
        "gui_collapsed": true,
        "quality_preset": {
          "variant": "Balanced"
        },
        "enable_vbaq": true,
        "rate_control_mode": {
          "variant": "Cbr"
        },
        "h264_profile": {
          "variant": "High"
        },
        "entropy_coding": {
          "variant": "Cavlc"
        },
        "filler_data": false,
        "use_10bit": false,
        "server_overrides_use_10bit": false,
        "use_full_range": true,
        "server_overrides_use_full_range": false,
        "encoding_gamma": 1.0,
        "server_overrides_encoding_gamma": false,
        "hdr": {
          "gui_collapsed": true,
          "enable_hdr": false,
          "server_overrides_enable_hdr": false,
          "force_hdr_srgb_correction": false,
          "clamp_hdr_extended_range": false
        },
        "nvenc": {
          "gui_collapsed": true,
          "quality_preset": {
            "variant": "P3"
          },
          "tuning_preset": {
            "variant": "LowLatency"
          },
          "multi_pass": {
            "variant": "QuarterResolution"
          },
          "adaptive_quantization_mode": {
            "variant": "Spatial"
          },
          "low_delay_key_frame_scale": -1,
          "refresh_rate": -1,
          "enable_intra_refresh": false,
          "intra_refresh_period": -1,
          "intra_refresh_count": -1,
          "max_num_ref_frames": -1,
          "gop_length": -1,
          "p_frame_strategy": -1,
          "rate_control_mode": -1,
          "rc_buffer_size": -1,
          "rc_initial_delay": -1,
          "rc_max_bitrate": -1,
          "rc_average_bitrate": -1,
          "enable_weighted_prediction": false
        },
        "amf": {
          "gui_collapsed": true,
          "enable_hmqb": false,
          "use_preproc": false,
          "preproc_sigma": 4,
          "preproc_tor": 7,
          "enable_pre_analysis": false
        },
        "software": {
          "gui_collapsed": true,
          "force_software_encoding": false,
          "thread_count": 0
        }
      },
      "force_software_decoder": false,
      "mediacodec_extra_options": {
        "gui_collapsed": true,
        "key": "",
        "value": {
          "ty": {
            "variant": "Int32"
          },
          "value": "0"
        },
        "content": [
          [
            "operating-rate",
            {
              "ty": {
                "variant": "Int32"
              },
              "value": "2147483647"
            }
          ],
          [
            "priority",
            {
              "ty": {
                "variant": "Int32"
              },
              "value": "0"
            }
          ],
          [
            "vendor.qti-ext-dec-low-latency.enable",
            {
              "ty": {
                "variant": "Int32"
              },
              "value": "1"
            }
          ]
        ]
      },
      "transcoding_view_resolution": {
        "Scale": 1.0,
        "Absolute": {
          "width": 2144,
          "height": {
            "set": false,
            "content": 1072
          }
        },
        "variant": "Absolute"
      },
      "emulated_headset_view_resolution": {
        "Scale": 1.0,
        "Absolute": {
          "width": 2144,
          "height": {
            "set": false,
            "content": 1072
          }
        },
        "variant": "Absolute"
      },
      "preferred_fps": 90.0,
      "adapter_index": 0,
      "clientside_foveation": {
        "enabled": false,
        "content": {
          "mode": {
            "Static": {
              "level": {
                "variant": "High"
              }
            },
            "Dynamic": {
              "max_level": {
                "variant": "High"
              }
            },
            "variant": "Dynamic"
          },
          "vertical_offset_deg": 0.0
        }
      },
      "clientside_post_processing": {
        "enabled": false,
        "content": {
          "super_sampling": {
            "variant": "Quality"
          },
          "sharpening": {
            "variant": "Quality"
          }
        }
      },
      "upscaling": {
        "enabled": false,
        "content": {
          "edge_direction": true,
          "edge_threshold": 4.0,
          "edge_sharpness": 2.0,
          "upscale_factor": 1.5
        }
      }
    },
    "audio": {
      "game_audio": {
        "enabled": true,
        "content": {
          "gui_collapsed": false,
          "device": {
            "set": false,
            "content": {
              "NameSubstring": "Realtek Digital Audio",
              "Index": 0,
              "variant": "NameSubstring"
            }
          },
          "mute_when_streaming": true,
          "buffering": {
            "gui_collapsed": true,
            "average_buffering_ms": 50,
            "batch_ms": 10
          }
        }
      },
      "microphone": {
        "enabled": true,
        "content": {
          "gui_collapsed": true,
          "devices": {
            "Custom": {
              "sink": {
                "NameSubstring": "",
                "Index": 0,
                "variant": "NameSubstring"
              },
              "source": {
                "NameSubstring": "",
                "Index": 0,
                "variant": "NameSubstring"
              }
            },
            "variant": "Automatic"
          },
          "buffering": {
            "gui_collapsed": true,
            "average_buffering_ms": 50,
            "batch_ms": 10
          }
        }
      }
    },
    "headset": {
      "position_recentering_mode": {
        "Local": {
          "view_height": 1.5
        },
        "variant": "LocalFloor"
      },
      "rotation_recentering_mode": {
        "variant": "Yaw"
      },
      "controllers": {
        "enabled": true,
        "content": {
          "gui_collapsed": true,
          "tracked": true,
          "hand_skeleton": {
            "enabled": true,
            "content": {
              "steamvr_input_2_0": true,
              "predict": false
            }
          },
          "multimodal_tracking": false,
          "hand_tracking_interaction": {
            "enabled": false,
            "content": {
              "only_touch": false,
              "pinch_touch_distance": 0.0,
              "pinch_trigger_distance": 0.25,
              "curl_touch_distance": 2.0,
              "curl_trigger_distance": 2.5,
              "joystick_deadzone": 40.0,
              "joystick_offset_horizontal": 0.0,
              "joystick_offset_vertical": 0.0,
              "joystick_range": 1.0,
              "activation_delay": 50,
              "deactivation_delay": 100,
              "repeat_delay": 100
            }
          },
          "steamvr_pipeline_frames": 2.1,
          "haptics": {
            "enabled": true,
            "content": {
              "gui_collapsed": true,
              "intensity_multiplier": 1.0,
              "amplitude_curve": 1.0,
              "min_duration_s": 0.01
            }
          },
          "emulation_mode": {
            "Custom": {
              "serial_number": "ALVR Controller",
              "button_set": {
                "gui_collapsed": false,
                "element": "/user/hand/left/input/a/click",
                "content": []
              }
            },
            "variant": "Quest3Plus"
          },
          "extra_openvr_props": {
            "gui_collapsed": true,
            "element": {
              "key": {
                "variant": "TrackingSystemNameString"
              },
              "value": ""
            },
            "content": []
          },
          "linear_velocity_cutoff": 0.05,
          "angular_velocity_cutoff": 10.0,
          "left_controller_position_offset": {
            "gui_collapsed": true,
            "content": [
              0.0,
              0.0,
              -0.11
            ]
          },
          "left_controller_rotation_offset": {
            "gui_collapsed": true,
            "content": [
              0.0,
              0.0,
              0.0
            ]
          },
          "left_hand_tracking_position_offset": {
            "gui_collapsed": true,
            "content": [
              0.04,
              -0.02,
              -0.13
            ]
          },
          "left_hand_tracking_rotation_offset": {
            "gui_collapsed": true,
            "content": [
              0.0,
              -45.0,
              -90.0
            ]
          },
          "button_mappings": {
            "set": false,
            "content": {
              "gui_collapsed": false,
              "key": "/user/hand/left/input/a/click",
              "value": {
                "gui_collapsed": false,
                "element": {
                  "destination": "/user/hand/left/input/a/click",
                  "mapping_type": {
                    "HysteresisThreshold": {
                      "value": 0.5,
                      "deviation": 0.05
                    },
                    "BinaryToScalar": {
                      "off": 0.0,
                      "on": 1.0
                    },
                    "Remap": {
                      "min": 0.0,
                      "max": 1.0
                    },
                    "variant": "Passthrough"
                  },
                  "binary_conditions": {
                    "gui_collapsed": true,
                    "element": "/user/hand/left/input/trigger/touch",
                    "content": []
                  }
                },
                "content": []
              },
              "content": []
            }
          },
          "button_mapping_config": {
            "gui_collapsed": true,
            "click_threshold": {
              "value": 0.5,
              "deviation": 0.05
            },
            "touch_threshold": {
              "value": 0.1,
              "deviation": 0.05
            },
            "force_threshold": 0.8
          }
        }
      },
      "emulation_mode": {
        "Custom": {
          "serial_number": "Unknown"
        },
        "variant": "Vive"
      },
      "extra_openvr_props": {
        "gui_collapsed": true,
        "element": {
          "key": {
            "variant": "TrackingSystemNameString"
          },
          "value": ""
        },
        "content": []
      },
      "tracking_ref_only": false,
      "enable_vive_tracker_proxy": false,
      "face_tracking": {
        "enabled": true,
        "content": {
          "gui_collapsed": true,
          "sources": {
            "eye_tracking_fb": false,
            "face_tracking_fb": false,
            "eye_expressions_htc": true,
            "lip_expressions_htc": true,
            "face_tracking_pico": false
          },
          "sink": {
            "VrchatEyeOsc": {
              "port": 9000
            },
            "variant": "VrcFaceTracking"
          }
        }
      },
      "body_tracking": {
        "enabled": false,
        "content": {
          "gui_collapsed": false,
          "sources": {
            "body_tracking_fb": {
              "enabled": true,
              "content": {
                "full_body": true
              }
            },
            "body_tracking_bd": {
              "enabled": true,
              "content": {
                "BodyTracking": {
                  "high_accuracy": true,
                  "prompt_calibration_on_start": true
                },
                "variant": "BodyTracking"
              }
            }
          },
          "sink": {
            "VrchatBodyOsc": {
              "port": 9000
            },
            "variant": "FakeViveTracker"
          },
          "tracked": true
        }
      },
      "vmc": {
        "enabled": false,
        "content": {
          "gui_collapsed": true,
          "host": "127.0.0.1",
          "port": 39539,
          "publish": true,
          "orientation_correction": true
        }
      },
      "max_prediction_ms": 100
    },
    "connection": {
      "stream_protocol": {
        "variant": "Udp"
      },
      "client_discovery": {
        "enabled": true,
        "content": {
          "auto_trust_clients": false
        }
      },
      "wired_client_type": {
        "Custom": "alvr.client",
        "variant": "Store"
      },
      "wired_client_autolaunch": true,
      "enable_on_connect_script": false,
      "enable_on_disconnect_script": false,
      "allow_untrusted_http": false,
      "avoid_video_glitching": false,
      "packet_size": 1400,
      "stream_port": 9944,
      "web_server_port": 8082,
      "osc_local_port": 9942,
      "server_send_buffer_bytes": {
        "Custom": 100000,
        "variant": "Maximum"
      },
      "server_recv_buffer_bytes": {
        "Custom": 100000,
        "variant": "Maximum"
      },
      "client_send_buffer_bytes": {
        "Custom": 100000,
        "variant": "Maximum"
      },
      "client_recv_buffer_bytes": {
        "Custom": 100000,
        "variant": "Maximum"
      },
      "max_queued_server_video_frames": 1024,
      "statistics_history_size": 256,
      "minimum_idr_interval_ms": 100,
      "dscp": {
        "set": false,
        "content": {
          "ClassSelector": 7,
          "AssuredForwarding": {
            "class": 4,
            "drop_probability": {
              "variant": "Low"
            }
          },
          "variant": "ExpeditedForwarding"
        }
      }
    },
    "extra": {
      "steamvr_launcher": {
        "open_close_steamvr_with_dashboard": false
      },
      "capture": {
        "startup_video_recording": false,
        "rolling_video_files": {
          "enabled": false,
          "content": {
            "duration_s": 5
          }
        },
        "capture_frame_dir": "/tmp"
      },
      "logging": {
        "show_notification_tip": true,
        "prefer_backtrace": false,
        "notification_level": {
          "variant": "Warning"
        },
        "client_log_report_level": {
          "enabled": true,
          "content": {
            "variant": "Error"
          }
        },
        "show_raw_events": {
          "enabled": false,
          "content": {
            "hide_spammy_events": false
          }
        },
        "log_to_disk": false,
        "log_tracking": false,
        "log_button_presses": false,
        "log_haptics": false,
        "debug_groups": {
          "server_impl": false,
          "client_impl": false,
          "server_core": false,
          "client_core": false,
          "connection": false,
          "sockets": false,
          "server_gfx": false,
          "client_gfx": false,
          "encoder": false,
          "decoder": false
        }
      },
      "patches": {
        "linux_async_compute": false,
        "linux_async_reprojection": false
      },
      "velocities_multiplier": 1.0,
      "open_setup_wizard": false,
      "new_version_popup": {
        "enabled": true,
        "content": {
          "hide_while_version": "20.14.1"
        }
      }
    }
  }
}

SteamVR Version:
2.14.4

Install Type:

  • Packaged (exe, deb, rpm, etc)
  • Portable (zip)
  • Source

Installation was through the ALVR Launcher.

OS Name and Version:
Windows 11 Version 25H2 (OS Build 26200.7171)

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