Crackling and scratching noice with Mac

Hi,

I suddenly have these crackling scratching noices in the background when I listen through my MacBook Pro. Did not have this before. Any idea what it can be? It’s only when I play through the Mac.

Debug below

Audirvana Mac Version 3.5.44 (3574)
macOS 11.2.2 with 8192MB RAM

Registered to Janne Alanampa

SIGNAL PROCESSING:

Polarity Inversion:
	Globally: OFF
	Per track: ON
Effects plugins ACTIVE in offline mode
	No plugin 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: OFF

LIBRARY SETTINGS:
Sync list: 1 folders
AUTO: /Volumes/music/FLAC
iTunes/Music library synchronization: not synchronized
Library database path: /Users/alanampa/Library/Application Support/Audirvana/AudirvanaPlusDatabaseV2.sqlite

ACTIVE STREAMING SERVICES

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

CoreAudio audio path, buffer I/O frame size: 512

Max. memory for audio buffers: 5120MB

Local Audio Engine:
Exclusive access: Enabled
Integer mode: Enabled

Preferred device:
TX-8150
Model UID:ONKYO TX-8150
UID:uuid:2cb09590-dc95-90b9-d09c-9009dcb9d56c

Active Sample Rate: 44.1kHz
Hog Mode is off

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 0x31 Built-in Output Manufacturer:Apple Inc.
Model UID:AppleHDA:93 UID:AppleHDAEngineOutput:1B,0,1,1:0

4 available sample rates up to 96000Hz
44100
48000
88200
96000
Audio buffer frame size : 14 to 4096 frames
Current I/O buffer frame size : 512
Volume Control
Physical: No
Virtual: Yes
MQA capability
Auto-detect MQA devices: No
Not a MQA device, user set to MQA Renderer
DSD capability: DSD via PCM 1.1
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 0x32 2 channels starting at 1
4 virtual formats:
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

12 physical formats
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 Mixable linear PCM Interleaved 16 little endian Signed Integer 96kHz
2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 88.2kHz
2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 48kHz
2 ch Mixable linear PCM Interleaved 16 little endian Signed Integer 44.1kHz
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

Local devices found : 1
Device #0: ID 0x31 Built-in Output Manufacturer: Apple Inc. Model UID: AppleHDA:93 UID: AppleHDAEngineOutput:1B,0,1,1:0

UPnP devices found : 2
Device #0: ID 0x0 [TV] Samsung Q67 Series (55) UID: uuid:3b427ed2-1e5b-472f-ba49-95e1b1374cc6 Location: http://10.0.1.10:9197/dmr
Device #1: ID 0x0 [AV] Samsung HW Q76R UID: uuid:f9682729-2680-4b4b-9ba9-51f3225eafef Location: http://10.0.1.7:9197/dmr

Hello @Janne_Alanampa,

Have you tried to make the update to 11.2.3 ?

What update do you mean?

MacOS update, you are using MacOS 11.2.2 but the latest is 11.2.3

Aah ok, I have not installed that one yet. Could this be the problem?

No, updating the Mac did not help. This is very strange??

Set the Hog Mode to on and set the MQA capability to Non-MQA.

Sorry for asking but where do I find the Hog Mode switch?

This is pretty annoying, many songs is totally inaudible at this point. Does anybody have any idea how to solve this?

This happens only when playing through Audirvana, when I stream through Tidals app everything sounds perfect.

Under DAC settings search for exclusive access. It might be related to Tidal or some other app holding the interface. Close all apps and try again.

My locally stored files are also affected by this, so it’s not only Tidal.

Hi Janne, are you using a DAC? Also, have you tried a PRAM reset?

I don’t think I’ve done anything but suddenly everything works fine again. Very strange!

Hi Jane
Glad it started working ! I had a similar problem. The fix was Audirvana >audio settings >up sampling >Deactivated .
Cheers

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