Sennheiser momentum TW 3 (BT) - "unable to change to integer mode"

Studio Device connectivity
1

I was able to use my Senn. MTW 3 once with Origin/Studio around a month back using wasapi mode. When I tried today I get this integer mode error. This issue exists with both Origin and Studio.
Is there any way to switch off integer mode?

debug info

Audirvana Studio 2.2.3 (20203)

Windows 11 (22621) with 32GB physical RAM

Connected account of : ----

SIGNAL PROCESSING:

Polarity Inversion:
	Globally: OFF
	Per track: ON
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: None
SW volume control: OFF

LIBRARY SETTINGS:
Sync list: 2 folders
AUTO: C:\Users\reach\Music\iTunes
AUTO: C:\Users\reach\Music\my-music
Library database path: C:\Users\reach\AppData\Local\Audirvana\Audirvana\AudirvanaDatabase.sqlite

Remote Control server:
Listening on 192.168.1.28 on port 55088

ACTIVE STREAMING SERVICES
TIDAL: Connected as HIFI

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

Active method: Local

Max. memory for audio buffers: 846MB

Local Audio Engine: WASAPI
Use max I/O buffer size: ON

Preferred device:
Headphones (LE-MOMENTUM TW 3)
Model UID:BTHENUM{0000110b-0000-1000-8000-00805f9b34fb}_LOCALMFG&0002
UID:\?\SWD#MMDEVAPI#{0.0.0.00000000}.{0436d1f8-1222-4b40-8b76-418d2918e7f2}#{e6327cad-dcec-4949-ae8a-991e976a79d2}

Active Sample Rate: 48kHz

Bridge settings:
Sample rate limitation: 192kHz
Sample rate switching latency: none
Limit bitdepth to 24bit: OFF
Mute during sample rate change: OFF

Selected device:Headphones (LE-MOMENTUM TW 3)
Manufacturer: Microsoft
Model name: Bluetooth Peripheral Device
Model UID: BTHENUM{0000110b-0000-1000-8000-00805f9b34fb}_LOCALMFG&0002
UID: \?\SWD#MMDEVAPI#{0.0.0.00000000}.{0436d1f8-1222-4b40-8b76-418d2918e7f2}#{e6327cad-dcec-4949-ae8a-991e976a79d2}

6 available sample rates up to 192000Hz
44100
48000
88200
96000
176400
192000

Volume Control
Physical: Yes
Virtual: No

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:0 R:1
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: No

1 output streams:
Number of active channels: 2, in 1 stream(s)
Channel #0 :Stream 0 channel 0
Channel #1 :Stream 0 channel 1
2 ch Integer PCM 16bit little endian 44.1kHz
2 ch Integer PCM 24bit little endian 44.1kHz
2 ch Integer PCM 24bit little endian aligned high in 32bit chunk 44.1kHz
2 ch Integer PCM 32bit little endian 44.1kHz
2 ch Integer PCM 16bit little endian 48kHz
2 ch Integer PCM 24bit little endian 48kHz
2 ch Integer PCM 24bit little endian aligned high in 32bit chunk 48kHz
2 ch Integer PCM 32bit little endian 48kHz
2 ch Integer PCM 16bit little endian 88.2kHz
2 ch Integer PCM 24bit little endian 88.2kHz
2 ch Integer PCM 24bit little endian aligned high in 32bit chunk 88.2kHz
2 ch Integer PCM 32bit little endian 88.2kHz
2 ch Integer PCM 16bit little endian 96kHz
2 ch Integer PCM 24bit little endian 96kHz
2 ch Integer PCM 24bit little endian aligned high in 32bit chunk 96kHz
2 ch Integer PCM 32bit little endian 96kHz
2 ch Integer PCM 16bit little endian 176.4kHz
2 ch Integer PCM 24bit little endian 176.4kHz
2 ch Integer PCM 24bit little endian aligned high in 32bit chunk 176.4kHz
2 ch Integer PCM 32bit little endian 176.4kHz
2 ch Integer PCM 16bit little endian 192kHz
2 ch Integer PCM 24bit little endian 192kHz
2 ch Integer PCM 24bit little endian aligned high in 32bit chunk 192kHz
2 ch Integer PCM 32bit little endian 192kHz

Local devices found : 3
Device #0: AI Noise-cancelling Output (ASUS Utility)
Manufacturer: ASUSTek Computer Inc.
Model UID: *IGOVAC
UID: \?\SWD#MMDEVAPI#{0.0.0.00000000}.{5b8a8703-8bd3-45ed-a313-33dde1cf94d9}#{e6327cad-dcec-4949-ae8a-991e976a79d2}
Model name: Unknown model
Device #1: Headphones (LE-MOMENTUM TW 3)
Manufacturer: Microsoft
Model UID: BTHENUM{0000110b-0000-1000-8000-00805f9b34fb}_LOCALMFG&0002
UID: \?\SWD#MMDEVAPI#{0.0.0.00000000}.{0436d1f8-1222-4b40-8b76-418d2918e7f2}#{e6327cad-dcec-4949-ae8a-991e976a79d2}
Model name: Bluetooth Peripheral Device
Device #2: Speakers (Realtek(R) Audio)
Manufacturer: Realtek
Model UID: INTELAUDIO\FUNC_01&VEN_10EC&DEV_0285&SUBSYS_10431C62&REV_1000
UID: \?\SWD#MMDEVAPI#{0.0.0.00000000}.{b9bd5436-366d-4bb2-9875-53bd6f6f19c1}#{e6327cad-dcec-4949-ae8a-991e976a79d2}
Model name: Intel High Definition Audio

UPnP

UPnP devices found : 1
Device #0: Bose Soundbar 700
UID: uuid:80a84e40-55d0-7bb5-caf1-d94236a963a8
Location: http://192.168.1.36:8091/80a84e40-55d0-7bb5-caf1-d94236a963a8.xml
Manufacturer: Bose
Model name: Bose Soundbar 700

Chromecast

Chromecast devices found : 0

=================================

2

This setting seems to get messed up quite often, not sure why. Since you have 32gb try moving it to 6000mb to 10000mb and test again to see if it helps.

This may not help with your integer issue but it needs to be corrected in either case.

1 Like
3

Thank you! increasing the buffer to 6GB has fixed my issue :slight_smile:

I dont get the integer mode issue anymore.

2 Likes
4

@OffRode Apologies, Just to avoid misdirecting folks I’ve now removed the “Solution” tick. It looks like the issue is a bit flacky!

The issue has come back again this evening. I’ve observed the following indicating maybe some bugs in Audirvana??

  • the Sennheiser MTW3 was working fine and I saw that only PCM 44.1 was highlighted. I was able to use kernel streaming
  • when not working, i.e., integer issue, all sample rates upto 192 were highlighted. All modes dont work. the wireless buds dont show up in kernel streaming mode.

The age old trick of restarting windows does not work either!

Will look to see if I can replicate the issue consistently.

5

I think I have identified the issue in my win11 laptop. It looks like Intel Smart Sound drivers take over the BT connection.
Based on the Intel page I did not find any use for this in my laptop. Not sure who will require these drivers, therefore pls dont uninstall based on what works for my laptop :slight_smile:

I (hard) uninstalled all Smart sound drivers under Sound and System devices in Device manager. By ‘hard’ I mean ticking the remove checkboxes to delete the files as well. I found the last post in this page useful…
[Solved: Conflict between Intel Smart Sound and other audio drivers - Intel Communities]

Audirvana now correctly registers the MTW3 sample rate as 48K, as defined in the sound properties. Kernel streaming works fine.

I’ll correct my earlier note about possible bugs in Audirvana.
All looks good, fingers crossed!

1 Like