Preload speed

Studio
1

Recently, the preload audio file speed of my studio has become very slow. Not only the streaming music will be played intermittently, but also the local audio file. Excuse me, what’s the problem?

Audirvana Studio 2.9.5 (20906)

macOS 12.7.6 x86_64 with 8GB physical RAM

Connected account of : spark wu

NETWORK
Status: available

SIGNAL PROCESSING:

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

UPSAMPLING:
r8brain with Power Of Two upsampling
r8brain filter parameters
Bandwidth = 99.5%
Stop band attenuation 218dB
Phase linear

AUDIO VOLUME:
Max allowed volume: 100
Replay Gain: None
SW volume control: ON

LIBRARY SETTINGS:
Sync list: 2 folders
AUTO: /Users/spark/Music/音樂
AUTO: /Volumes/SPARK256/
iTunes/Music library synchronization: last synchronized on Sun Oct 20 11:53:55 2024

Sort and display order: zh_Hant_TW
Library database path: /Users/spark/Library/Application Support/Audirvana/AudirvanaDatabase.sqlite

Local audio files fingerprinting
Tracks with no MBID: 14701

Remote Control server:
Listening on 127.0.0.1 on port 49216

ACTIVE STREAMING SERVICES
TIDAL: Connected as PREMIUM

APPEARANCE SETTINGS:
UI theme: dark
Font size: regular
Language: English
Show album covers in tracks list: yes
Source list sorted:
My Music
Radios
Podcasts
Streaming
Local
Startup view: My Music: Albums
Show local extended in source list: yes
Use media keys: yes
Use media keys for volume control: yes
Use Apple Remote: yes
Number of paired remotes: 3
Remote pairing code required: yes
Screen saver disabled: yes

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

Active method: Local

Max. memory for audio buffers: 2352MB

Local Audio Engine: CoreAudio
Exclusive access: ON
Integer mode: OFF
Use max I/O buffer size: ON
Actual I/O buffer frame size: 4096

Preferred device:
DENAFRIPS DENAFRIPS USB Audio V3.12 | A22FA1.6
Model UID:DENAFRIPS USB Audio V3.12 | A22FA1.6:152A:86EF
UID:AppleUSBAudioEngine:DENAFRIPS:DENAFRIPS USB Audio V3.12 | A22FA1.6:14200000:1

Currently playing in standard 32bit float mode
Device: 2ch Mixable linear PCM Interleaved 32bits little endian Signed Float, 8 bytes per frame 1411.2kHz

Active Sample Rate: 1411.2kHz
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:DENAFRIPS USB Audio V3.12 | A22FA1.6
Manufacturer: DENAFRIPS
Model name: DENAFRIPS USB Audio V3.12 | A22FA1.6
Model UID: DENAFRIPS USB Audio V3.12 | A22FA1.6:152A:86EF
UID: AppleUSBAudioEngine:DENAFRIPS:DENAFRIPS USB Audio V3.12 | A22FA1.6:14200000:1
USB Vendor ID: 0x152a
USB Product ID: 0x86ef
ID 0x4d

12 available sample rates up to 1536000Hz
44100
48000
88200
96000
176400
192000
352800
384000
705600
768000
1411200
1536000
Audio buffer frame size : 14 to 4096 frames
Current I/O buffer frame size : 4096

Volume Control
Physical: No
Virtual: Yes
Max volume alert: Enabled

MQA capability
Auto-detect MQA devices: No
Not automatically detected, user set to not MQA

DSD capability
DSD via PCM 1.0

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 0x4e 2 channels starting at 1
24 virtual formats:
2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 1536kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 1411.2kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 768kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 705.6kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 384kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Float 352.8kHz
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 32 little endian Signed Integer 1536kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 1411.2kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 768kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 705.6kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 384kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 352.8kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 192kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 176.4kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 96kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 88.2kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 48kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 44.1kHz

24 physical formats
2 ch Mixable linear PCM Interleaved 32 little endian Signed Integer 1536kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Integer 1411.2kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Integer 768kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Integer 705.6kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Integer 384kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Integer 352.8kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Integer 192kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Integer 176.4kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Integer 96kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Integer 88.2kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Integer 48kHz
2 ch Mixable linear PCM Interleaved 32 little endian Signed Integer 44.1kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 1536kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 1411.2kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 768kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 705.6kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 384kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 352.8kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 192kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 176.4kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 96kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 88.2kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 48kHz
2 ch Non-mixable linear PCM Interleaved 32 little endian Signed Integer 44.1kHz

Local devices found : 2
Device #0: ID 0x38 Built-in Output
Manufacturer: Apple Inc.
Model UID: AppleHDA:123
UID: AppleHDAEngineOutput:1B,0,1,1:0
Model name: Apple Inc. Built-in Output
Device #1: ID 0x4d DENAFRIPS USB Audio V3.12 | A22FA1.6
Manufacturer: DENAFRIPS
Model UID: DENAFRIPS USB Audio V3.12 | A22FA1.6:152A:86EF
UID: AppleUSBAudioEngine:DENAFRIPS:DENAFRIPS USB Audio V3.12 | A22FA1.6:14200000:1
USB Vendor ID: 0x152a
USB Product ID: 0x86ef
Model name: DENAFRIPS USB Audio V3.12 | A22FA1.6

UPnP

UPnP network interface
Available Network interfaces:
Wi-Fi

UPnP devices found : 0

Chromecast

Chromecast devices found : 0

2

I’d suggest you try to raise the buffer memory to approximately 4Gb. Especially since you are upsampling.

Edit: I overlooked that you already have that. I was looking in the wrong place

3

What happens when you limit bit depth to 24 bits (the Ares is a 24 bit DAC)?

4

In the case of the debug information report you have provided, It appears you are trying to play 1-bit DSD512 files where the DoP 1.1 PCM carrier sample-rate is 1411.2kHz… These are very large files and very demanding of your CPU operations in concert with the available System RAM, in synergy with your pre-load memory allocation and the available space on your System drive, especially if you are storing your music library on the System drive, all which are synergistically tied to the DoP packetizing operations and the r8Brain sample-rate operations… In all cases, given you are using the recommended minimum level of System RAM (8GB), keeping your playback pre-load memory allocation to about 1 or 2GB will serve you best for overall performance.

If you are up-sampling (Power of Two) PCM files to 1411.2kHz, I suggest that you restrict the maximum sample-rate to 768kHz…
Since the DAC is PCM-centric, you may just convert all DSD files to PCM.

Try enabling ‘Integer Mode’…

Apparently you are using Wi-Fi in your system to stream TIDAL files which presents the potential for network congestion and LAN signal interference to affect the latency of file data.

Beyond these factors, I suggest try powering down the DAC and close Audirvāna and shut down the computer and then power-up the computer and once it has booted, power the DAC and then launch Audirvāna.

:notes: :eye: :headphones: :eye: :notes:

6

I’m sorry that I didn’t explain the situation clearly. All the settings were completely normal a few days ago, and it suddenly became like this.
I have tried to change upsampling back to normal, but the situation has not improved.
I have also tried to restart the computer, and checked that the connection speed of wifi is fine. Intermittent playback occurs even when playing local music.

7

Did you have some people visiting who could have been tampering with the settings?
Or have you been streaming earlier with another device than the Denafrips? And that by turning back to the Denafrips the Plays with-settings were applied which may be a little too much for your Mac?

8

What does this mean?
:notes: :eye: :headphones: :eye: :notes:

9

Just stop upsampling, restart Mac play something and see if all is normal, then if you want to upsample, try to put it at on and see

1 Like
10

Follow @RunHomeSlow 's advice… and if you want to up-sample, follow my advice and limit this to 768kHz and if you are playing DSD just convert this to PCM.
:notes: :eye: :headphones: :eye: :notes:

11

My settings have been used for a long time without any problems. A few days ago, listening to music suddenly became intermittent.
However, I restarted the ares and now it’s normal.
Thank you.

12

I just restarted ares, and the situation seems to have improved.
I can’t understand the relationship between dac being on for a long time and preload, but now I can listen to music normally.
Thank you all.

1 Like
13

Power of Two is the correct algorithm to use, however, If you are upsampling to 1411.2kHz or 1536.0kHZ this is taxing your system level CPU operations… Limit up-sampling of PCM files to 768kHz or 384kHz for best performance… especially with only 8GB of System RAM available for CPU operations… Experiment with up-sampling limited to 384kHz vs 768kHz and letting the DAC do the rest. :wink:

:notes: :eye: :headphones: :eye: :notes:

1 Like