Bonjour,
J’utile Audirvana sur mon macbook pro High Sierra. Je passe par un Mydac Microméga (connecté par USB), lui-même relié à mon ampli par RCA. Jusqu’à présent, je n’avais aucun problème mais depuis quelques temps, le son grésille tout le temps.
Merci de vos retours.
J’ajoute que lorsque j’écoute des fichiers audio via Itunes, sans passer par Audirvana, le son est parfait. Donc à priori, cela ne vient pas de l’équipement.
Pouvez-vous m’envoyer une copie de votre “Debug Info” ? Vous le trouverez dans les paramètres d’Audirvana>Général>Debug Info
Remarque: En cliquant sur le bouton Debug Info, Audirvana copie automatiquement tout son contenu, il ne vous reste plus qu’à le coller en réponse de ce message
Le voici :
Audirvana Mac Version 3.5.42 (3572)
macOS 10.13.6 with 8192MB RAM
SIGNAL PROCESSING:
Polarity Inversion:
Globally: OFF
Per track: ON
Effects plugins NOT ACTIVE
UPSAMPLING:
SoX not in use
SoX filter parameters
Bandwidth at 0dB = 99.5
Filter max length = 30000
Anti-aliasing = 100
Phase = 66
AUDIO VOLUME:
Max allowed volume: 100
Replay Gain: None
SW volume control: ON
LIBRARY SETTINGS:
Sync list: 1 folders
Manual: /Users/frederik/Music/ELECTRO 90
iTunes/Music library synchronization: not synchronized
Library database path: /Users/frederik/Library/Application Support/Audirvana/AudirvanaPlusDatabaseV2.sqlite
ACTIVE STREAMING SERVICES
Qobuz: Connected as Qobuz Studio
=================== AUDIO DEVICE ========================
CoreAudio audio path, buffer I/O frame size: 512
Max. memory for audio buffers: 7168MB
Local Audio Engine:
Exclusive access: Enabled
Integer mode: Enabled
Preferred device:
MICROMEGA MYDAC USB 2.0 Audio Out
Model UID:MICROMEGA MYDAC:26F2:0200
UID:AppleUSBAudioEngine:MICROMEGA :MICROMEGA MYDAC:0000:1
Currently playing in Integer Mode:
Device: 2ch Non-mixable linear PCM Interleaved 24bits little endian Signed Integer, 8 bytes per frame 44.1kHz
Active Sample Rate: 44.1kHz
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 0x28 MICROMEGA MYDAC USB 2.0 Audio Out Manufacturer:MICROMEGA
Model UID:MICROMEGA MYDAC:26F2:0200 UID:AppleUSBAudioEngine:MICROMEGA :MICROMEGA MYDAC:0000:1
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 : 512
Volume Control
Physical: Yes
Virtual: Yes
MQA capability
Auto-detect MQA devices: Yes
Not a MQA device, user set to not MQA
DSD capability: Unhandled
Device audio channels
Preferred stereo channels L:1 R:2
Channel bitmap: Ox3, layout:
Channel 0 mapped to 0
Channel 1 mapped to 1
Audio channels in use
Number of channels: 2
Use as stereo device only: No
Simple stereo device: Yes
1 output streams:
Number of active channels: 2, in 1 stream(s)
Channel #0 :Stream 0 channel 0
Channel #1 :Stream 0 channel 1
Stream ID 0x29 2 channels starting at 1
12 virtual formats:
2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 192kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 176.4kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 96kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 88.2kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 48kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 44.1kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 192kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 176.4kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 96kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 88.2kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 48kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 44.1kHz
12 physical formats
2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 192kHz
2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 176.4kHz
2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 96kHz
2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 88.2kHz
2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 48kHz
2 ch Mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 44.1kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 192kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 176.4kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 96kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 88.2kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 48kHz
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer aligned low in 32bit 44.1kHz
Local devices found : 2
Device #0: ID 0x38 Sortie intégrée Manufacturer: Apple Inc. Model UID: AppleHDA:29 UID: AppleHDAEngineOutput:1B,0,1,2:0
Device #1: ID 0x28 MICROMEGA MYDAC USB 2.0 Audio Out Manufacturer: MICROMEGA Model UID: MICROMEGA MYDAC:26F2:0200 UID: AppleUSBAudioEngine:MICROMEGA :MICROMEGA MYDAC:0000:1
UPnP devices found : 1
Device #0: ID 0x0 décodeur TV 4 UID: uuid:00ababad-7947-1048-8a00-247f20f39669 Location: http://192.168.1.18:42300/description.xml
Avez-vous ce problème avec n’importe quelle fréquence d’échantillonnage?
Pouvez-vous désactiver le mode Intégré dans les paramètres audio d’Audirvana rubrique Capacité de l’appareil?
Parfait merci. Voilà ce que ça donne dans les réglages en photos.
Je vois que vous avez désactivé le Integer mode mais que vous avez aussi activé le suréchantillonnage avec l’option “fréquence maximale du périphérique”, pouvez-vous changer cette option pour “Puissance de 2” ou en désactivant l’option?
