aptX Adaptive / aptX Lossless USB Transmitters
Apr 19, 2024 at 6:29 PM Post #2,042 of 2,080
Differences in Tidal settings and stream quality result in different audio experiences on your device. This may be due to limitations in certain settings or technical features of the device. It's important to note that each audio source and application settings can affect how the audio signal is transmitted.
 
Apr 19, 2024 at 11:21 PM Post #2,043 of 2,080
The Eppfun AK3040 Pro Max USB C transmitter also will meet the requirements of the New Qualcomm S3 & S5 Gen 3 platform standards. As the dongle has classic Bluetooth and LE works along side Aptx Lossless. In terms it is capable of ruining the new Aptx Lossless Hi-Res (1,200kbps bit-rate, 24 bit at 48khz sample-rate) Works on my Vivo TWS 4 Hifi. Will work too once Sennheiser updates it into the MTW4
 
Apr 20, 2024 at 2:00 AM Post #2,044 of 2,080
The Avantree LE receiver will be available 10 days. Would really love to know how the aptx lite sounds(I need low latency for my subwoofer vest) but I can't, as I have pre-ordered the transmitter+receiver combo months in advance for an extreme discount, it's almost free. If anyone buys this plz let us know about aptx lite...

https://avantree.com/as70p-bluetooth-adapter-for-headphones
 
Apr 20, 2024 at 9:29 PM Post #2,045 of 2,080
The Avantree LE receiver will be available 10 days. Would really love to know how the aptx lite sounds(I need low latency for my subwoofer vest) but I can't, as I have pre-ordered the transmitter+receiver combo months in advance for an extreme discount, it's almost free. If anyone buys this plz let us know about aptx lite...

https://avantree.com/as70p-bluetooth-adapter-for-headphones
So tempting...

I use my Sennheiser HD560S w/ Qudelix 5K for playing Valorant, and listening to music. Been wanting to cut the cord. I'd have to get the pro link for the receiver and transmitter though.

And I would lose my EQ settings and all the wonderful things the Qudelix does. Decisions decisions.
 
Apr 21, 2024 at 7:37 PM Post #2,046 of 2,080
The Eppfun AK3040 Pro Max USB C transmitter also will meet the requirements of the New Qualcomm S3 & S5 Gen 3 platform standards. As the dongle has classic Bluetooth and LE works along side Aptx Lossless. In terms it is capable of ruining the new Aptx Lossless Hi-Res (1,200kbps bit-rate, 24 bit at 48khz sample-rate) Works on my Vivo TWS 4 Hifi. Will work too once Sennheiser updates it into the MTW4

I'm already using AptX Lossless on my MTW4. Had to enable it in the settings within the Sennheiser app on my phone, but it's on there.
 
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Apr 21, 2024 at 7:54 PM Post #2,047 of 2,080
Brand new LE receiver listed before it's available just like the dongle. This is more expensive than the Avantree and Eppfunn seems like a shittier brand so I don't know why you would buy this. More importantly it coincides with the 4/30 release date of the Avantree receiver. Hopefully this means that Auracast/LE will be released to the public at large by Qualcomm now, since this shouldn't be a coincidence.
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Apr 21, 2024 at 9:23 PM Post #2,049 of 2,080
I am too. That's Aptx lossless at 16 bit at 44khz sample-rate. Not the newer 24-bit at 48khz
Hmm. I'm using the FlooGoo FMA120, set to 24/48, but I do see now in the app that it shows 16/44.1. Though at 1200kbps wouldn't 16/44.1 go beyond maxing it out anyway? Is there a higher bitrate version at 24/48 coming or am I missing something?
 
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Apr 21, 2024 at 9:34 PM Post #2,050 of 2,080
Hmm. I'm using the FlooGoo FMA120, set to 24/48, but I do see now in the app that it shows 16/44.1. Thought at 1200kbps wouldn't 16/44.1 go beyond maxing it out anyway? Is there a higher bitrate version at 24/48 coming or am I missing something?
The TWS and a device like a phone need to meet these requirements to get Aptx Lossless Hi-Res. The Eppfun transmitter and the Vivo TWS 4 Hifi are both capable. Been enjoying the experience. The MTW4 has this SoC but needs a firmware update to unlock it
https://www.qualcomm.com/products/internet-of-things/consumer/audio/qualcomm-s3-gen-3-sound-platform
 
Apr 21, 2024 at 9:46 PM Post #2,051 of 2,080
The TWS and a device like a phone need to meet these requirements to get Aptx Lossless Hi-Res. The Eppfun transmitter and the Vivo TWS 4 Hifi are both capable. Been enjoying the experience. The MTW4 has this SoC but needs a firmware update to unlock it
https://www.qualcomm.com/products/internet-of-things/consumer/audio/qualcomm-s3-gen-3-sound-platform
I guess I'm a bit confused on how sound quality can be improved in this instance, if the bitrate remains 1,200kbps. Even at 16/44.1 that's not quite lossless since the bitrate for that file would theoretically be 1,411? 24/48 would only require more compression, wouldn't it? I'm not as informed as a lot of you guys are on bluetooth stuff so I'd love to be corrected. I wish they published clearer information on these changes.
 
Apr 21, 2024 at 10:01 PM Post #2,052 of 2,080
I guess I'm a bit confused on how sound quality can be improved in this instance, if the bitrate remains 1,200kbps. Even at 16/44.1 that's not quite lossless since the bitrate for that file would theoretically be 1,411? 24/48 would only require more compression, wouldn't it? I'm not as informed as a lot of you guys are on bluetooth stuff so I'd love to be corrected. I wish they published clearer information on these changes.
Aptx lossless is very close to full CD lossless. Might or might not be more compression being added. BT5.4 is newer and is better optimized and uses better efficiency from previous versions. Think Qualcomm found a way to cleverly utilize BT5.4 and LE Audio to work together to be able to increase Aptx Lossless sample-rate. Well from my understanding from what they advertise. I do notice better depth audio with adding 24/48 to Aptx lossless from the regular one
 
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Apr 21, 2024 at 11:26 PM Post #2,054 of 2,080
Apr 22, 2024 at 12:49 AM Post #2,055 of 2,080
Even at 16/44.1 that's not quite lossless since the bitrate for that file would theoretically be 1,411
The stream gets encoded(compressed) at the transmitter side, sent to the receiver at lower rate than 1411(ive seen FLACs at around 700-800kbps), and decoded(decompressed) at the receiver side.
1411kbps is the rate for uncompressed 44/16 audio. It can be compressed and still be lossless, lossless meaning its same bit for bit after decoding.
 

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