Bruit blanc sur certaines pistes en streaming

Bonjour,
Après migration de Audirvana 3.5 à Audirvana Studio et sur certaine pistes, un bruit blanc/larsen dès le début du morceau et en continu.
Merci !
JMB

Audirvana Studio 1.14.0 (11400)

macOS 12.5.1 with 32GB physical RAM

Connected account of : Jean-Marc Badaroux

SIGNAL PROCESSING:

Polarity Inversion:
	Globally: OFF
	Per track: OFF
Effects plugins NOT ACTIVE

UPSAMPLING:
r8brain not in use
r8brain filter parameters
Bandwidth = 99.5%
Stop band attenuation 218dB
Phase linear

AUDIO VOLUME:
Max allowed volume: 100
Replay Gain: by track
SW volume control: ON

LIBRARY SETTINGS:
Sync list: 0 folders
iTunes/Music library synchronization: not synchronized
Library database path: /Users/jmb/Library/Application Support/Audirvana/AudirvanaDatabase.sqlite

Remote Control server:
Listening on 127.0.0.1 on port 50530

ACTIVE STREAMING SERVICES
Qobuz: Connected as Qobuz Studio

=================== AUDIO DEVICE ========================

CoreAudio audio path, buffer I/O frame size: 4096

Max. memory for audio buffers: 29696MB
Exclusive access: Enabled
Integer mode: Enabled

Preferred device:
TC Near
Model UID:TCNear:DICE Device
UID:TCNearAudioEngine:0

Currently playing in standard 32bit float mode
Device: 6ch Mixable linear PCM Interleaved 32bits little endian Signed Float, 24 bytes per frame 96kHz

Active Sample Rate: 96kHz
Hog Mode is on

Bridge settings:
Sample rate limitation: none
Sample rate switching latency: none
Limit bitdepth to 24bit: OFF
Mute during sample rate change: OFF

Selected device:
Local audio device
ID 0x54 TC Near
Manufacturer: TC Electronic
Model Name: TC Electronic TC Near
Model UID: TCNear:DICE Device
UID: TCNearAudioEngine:0

6 available sample rates up to 192000Hz
44100
48000
88200
96000
176400
192000
Audio buffer frame size : 14 to 4096 frames
Current I/O buffer frame size : 4096
Volume Control
Physical: No
Virtual: No
MQA capability
Auto-detect MQA devices: No
Not a MQA device, user set to not MQA
DSD capability: Unhandled
Device audio channels
Multichannel: 6 channels
Preferred stereo channels L:1 R:2
Channel bitmap: Ox3f, layout:
Channel 0 mapped to 0
Channel 1 mapped to 1
Channel 2 mapped to 2
Channel 3 mapped to 3
Channel 4 mapped to 4
Channel 5 mapped to 5

Audio channels in use
Number of channels: 6
Use as stereo device only: No
Simple stereo device: No

1 output streams:
Number of active channels: 6, in 1 stream(s)
Channel #0 :Stream 0 channel 0
Channel #1 :Stream 0 channel 1
Channel #2 :Stream 0 channel 2
Channel #3 :Stream 0 channel 3
Channel #4 :Stream 0 channel 4
Channel #5 :Stream 0 channel 5

Stream ID 0x55 6 channels starting at 1
6 virtual formats:
6 ch Mixable linear PCM Interleaved 32 little endian Signed Float 192kHz
6 ch Mixable linear PCM Interleaved 32 little endian Signed Float 176.4kHz
6 ch Mixable linear PCM Interleaved 32 little endian Signed Float 96kHz
6 ch Mixable linear PCM Interleaved 32 little endian Signed Float 88.2kHz
6 ch Mixable linear PCM Interleaved 32 little endian Signed Float 48kHz
6 ch Mixable linear PCM Interleaved 32 little endian Signed Float 44.1kHz

6 physical formats
6 ch Mixable linear PCM Interleaved 24 big endian Signed Integer 192kHz
6 ch Mixable linear PCM Interleaved 24 big endian Signed Integer 176.4kHz
6 ch Mixable linear PCM Interleaved 24 big endian Signed Integer 96kHz
6 ch Mixable linear PCM Interleaved 24 big endian Signed Integer 88.2kHz
6 ch Mixable linear PCM Interleaved 24 big endian Signed Integer 48kHz
6 ch Mixable linear PCM Interleaved 24 big endian Signed Integer 44.1kHz

Local devices found : 3
Device #0: ID 0x45 Sortie intégrée Manufacturer: Apple Inc. Model UID: AppleHDA:130 UID: AppleHDAEngineOutput:1F,3,0,1,2:0 Model Name: Apple Inc. Sortie intégrée
Device #1: ID 0x2d Microsoft Teams Audio Manufacturer: Microsoft Corp. Model UID: MSLoopbackDriverDevice_ModelUID UID: MSLoopbackDriverDevice_UID Model Name: Microsoft Corp. Microsoft Teams Audio
Device #2: ID 0x54 TC Near Manufacturer: TC Electronic Model UID: TCNear:DICE Device UID: TCNearAudioEngine:0 Model Name: TC Electronic TC Near

UPnP devices found : 1
Device #0: ID 0x0 décodeur TV 4 UID: uuid:00ababad-7947-1048-8a00-3c17100abcc5 Location: http://192.168.1.11:42300/description.xml

Pouvez-vous réduire la quantité de mémoire allouée pour 4000MB ainsi que de désactiver le controle de volume logiciel?

Bonjour Antoine et merci pour votre réponse rapide,
J’ai réduit la mémoire allouée, mais aimerais bien garder la fonction “contrôle volume logiciel” qui est bien pratique :wink:
Petite précision : bruit blanc uniquement sur lecture de fichiers “playlist Quobuz” et lors de changement de fréquence entre 2 pistes, comme par exemple de 96kHz à 192kHz (d’ailleurs, tous mes fichiers “playlist Quobuz” mélangent des fréquences différentes, est-ce normal ?).
En revanche, aucun problème sur les fichiers “album d’artiste” qui sont tous en 44,1kHz…

Bonjour, pouvez-vous ouvrir Audio Midi Setup et changer le sample rate de votre appareil sans avoir Audirvāna Studio ouvert, est-ce que vous entendez ce bruit blanc?

Bonjour Antoine,

Bravo et merci !
Depuis action sur Audio Midi Setup, problème “bruit blanc” résolu.

JMB

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