BDP2+BDA2: missing first second of first song

Discuss Bryston's BDP-2 Digital Music Player

BDP2+BDA2: missing first second of first song

by vklyushnikov » Wed Nov 05, 2014 8:23 pm

Hello,
I've noticed a strange issue with my BDP2+BDA2 setup: after turning on my devices from standby, first playback of the first song in playlist starts not from beginning of song. It misses about a second. This is clearly audible on some loud rock/metal songs that start without any kind of introduction. And this issue occurs only once from startup. If I stop playing and start playlist again - song plays from very beginning. If I play anoth album - it also plays ok. But I turn off my system to standby every night so issue is annoying for me. And it occurs with both Manic Moose Media Player and MPAD. Please provide a fix - I hope this is software issue. My setup is following:
BDP-2 with Manic Moose S2.06 2014-10-07 (tried both MPD 0.17.5 and 0.18.6).
BDA2 with turned on upsampling.
DH Labs AES/EBU cable.

And one observation: after startup BDA-2 is locked to 48K sample rate. And it changes sample rate to required (44K in my case) at the beginning of playback. May be delay occurs during sample rate change? I can be wrong, of course.
Regards,
Vladimir
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Re: BDP2+BDA2: missing first second of first song

by vklyushnikov » Fri Nov 07, 2014 9:20 am

Any comments / workarounds from Bryston support?
Regards,
Vladimir
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Posts: 25
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Re: BDP2+BDA2: missing first second of first song

by CanadianMaestro » Fri Nov 07, 2014 4:04 pm

Hi

Not sure if this addresses/fixes your glitch, but I leave my BDP-1 (Loony Loon) powered on 24/7, without any issues whatsoever. It doesn't suck a lot of power when idle, especially since I have my drives plugged into a powered USB hub, not directly to the BDP's ports.

It beats powering up and then having to wait 15mins. for it to re-read all my attached drives.

Not sure if it's a software or hardware issue that is causing your glitch with BDP-2. I defer to Bryston's resident experts on this.

Good luck.

M.
BCD-1 BDP-1 >BDA-1 >BHA-1 + B100 >14B-SST2 >Vienna Acoustics Mozart Grand SE
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Re: BDP2+BDA2: missing first second of first song

by vklyushnikov » Sat Nov 08, 2014 11:35 am

Things are worse that I expected initially. Glitch occurs EVERY TIME when sample rate is changed to lower value. I've easily reproduced it. I've created two versions of the same song - 44K and 96K. Then I added both to playlist and started switching between them. Every time I switch to 44K version first second of song is missing. When I switch to 96K version - no glitch occurs. If I switch between several 44K songs - no glitch occurs too.
I don't know whether this is player or DAC issue. I expect that Bryston support will fix this in shortest time, because such flaws are unacceptable for such pricy devices.
Regards,
Vladimir
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Posts: 25
Joined: Wed Nov 05, 2014 7:45 pm

Re: BDP2+BDA2: missing first second of first song

by CanadianMaestro » Sat Nov 08, 2014 2:42 pm

vklyushnikov wrote:Things are worse that I expected initially. Glitch occurs EVERY TIME when sample rate is changed to lower value. I've easily reproduced it. I've created two versions of the same song - 44K and 96K. Then I added both to playlist and started switching between them. Every time I switch to 44K version first second of song is missing. When I switch to 96K version - no glitch occurs. If I switch between several 44K songs - no glitch occurs too.
I don't know whether this is player or DAC issue. I expect that Bryston support will fix this in shortest time, because such flaws are unacceptable for such pricy devices.



This might be something unique to BDP-2/BDA-2, or perhaps even to your particular unit(s). I didn't hear any glitch with BDP-1/BDA-1 combo. Just now, I lined up three tracks: going from 192/24 to 96/24 to 44/16. The first two were choral tracks, the last was a Lizzie West vocal track. So, downsampling from 192 to 96 to 44. No glitches whatsoever. Let's hear what Bryston staff have to say.

Really hope you resolve your glitch.
BCD-1 BDP-1 >BDA-1 >BHA-1 + B100 >14B-SST2 >Vienna Acoustics Mozart Grand SE
Shunyata Triton/Typhon
HE560 HD650 PS500
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Posts: 55
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Re: BDP2+BDA2: missing first second of first song

by CanadianMaestro » Sat Nov 08, 2014 2:50 pm

Footnote: I played the three tracks and let them transit normally to each other, in a playlist. No "switching" with my remote.

You said that you created two versions of the same track, at different resolutions. What software did you use for doing this conversion?
BCD-1 BDP-1 >BDA-1 >BHA-1 + B100 >14B-SST2 >Vienna Acoustics Mozart Grand SE
Shunyata Triton/Typhon
HE560 HD650 PS500
CanadianMaestro
 
Posts: 55
Joined: Wed Sep 24, 2014 2:39 pm
Location: Canada

Re: BDP2+BDA2: missing first second of first song

by vklyushnikov » Sat Nov 08, 2014 3:17 pm

I've saved 44k track as 96k in Audacity. It's simple upsampling. And you should be sure that music is started from very beginning.
Regards,
Vladimir
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Posts: 25
Joined: Wed Nov 05, 2014 7:45 pm

Re: BDP2+BDA2: missing first second of first song

by CanadianMaestro » Sat Nov 08, 2014 3:44 pm

Can you try another DAC -- maybe your dealer can loan you a different DAC.
Also, have you tried the other input jacks on BDA-2? Maybe it's a faulty jack.
Trying to see if it's the BDA-2 that's the culprit.
BCD-1 BDP-1 >BDA-1 >BHA-1 + B100 >14B-SST2 >Vienna Acoustics Mozart Grand SE
Shunyata Triton/Typhon
HE560 HD650 PS500
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Posts: 55
Joined: Wed Sep 24, 2014 2:39 pm
Location: Canada

Re: BDP2+BDA2: missing first second of first song

by keithjacksontucson » Sat Nov 08, 2014 3:49 pm

Whatever the sample rate was when you stopped playing the BDP-2 the day before is what is apparantly retained in the memory. If I've been playing 44K and then I start the next time with a 44k piece, there is no problem. When I start with something with a different sample rate, the beginning of the song is skipped. Playback is fine until I switch to a 96K or 88k or 48, or DSF , then the first song in that sample rate has a few seconds skipped . It's been driving me crazy
This appears to be a BDP-2 glitch. I have a lot of 88K and 96K downloads from HDtracks and my regular CDS are all ripped at 44K. So I do a lot of switching around in my playlist.
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Re: BDP2+BDA2: missing first second of first song

by CanadianMaestro » Sat Nov 08, 2014 3:57 pm

My superficial understanding is that it's the BDA, not BDP, that is responsible for up/downsampling and recognizing sample rates.
BCD-1 BDP-1 >BDA-1 >BHA-1 + B100 >14B-SST2 >Vienna Acoustics Mozart Grand SE
Shunyata Triton/Typhon
HE560 HD650 PS500
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Posts: 55
Joined: Wed Sep 24, 2014 2:39 pm
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