Re: [slim] Treble distortion
Mnyb;678108 Wrote: Is not the amp a limiting factor if it goes to protection that easy ? Normally you don't hear amps that much when they work properly . But you sure do when you get close to thier operational limits be it power,voltage,current or whatever. Some amps dislike the reactive nature of some difficult speakers. Again, when I switched the impedence in the Sony's menu to 4 ohm, the shutdown problem disappeared. -- CEBJr CEBJr's Profile: http://forums.slimdevices.com/member.php?userid=52059 View this thread: http://forums.slimdevices.com/showthread.php?t=92130 ___ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/discuss
Re: [slim] Treble distortion
Mnyb;678107 Wrote: ...Thats why you should have your own files if quality is a concern :) 99.9998 % of the user base would not recognize sq if it bit them in thier behind. Lossy compression is even less good on embedded devices with small cpu and no fpu unit, so the decoders has some compromises. Is it possible to have the server transcode pandora ? Or does the app block this, a worthwhile experiment This from the Squeezebox Wikipedia entry... Logitech Media Server can transcode other audio formats to MP3 on the fly, using the LAME MP3 encoder. This stuff is out of my league, though. BTW, I've written Pandora and received no reply after two days. It used to be that they would take calls, but no longer. I suppose I could try calling Logitech. -- CEBJr CEBJr's Profile: http://forums.slimdevices.com/member.php?userid=52059 View this thread: http://forums.slimdevices.com/showthread.php?t=92130 ___ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/discuss
Re: [slim] Treble distortion
When I switched the impedence in the Sony's menu to 4 ohm, the shutdown problem disappeared. The unit sounds very good most of the time, but I still have occasional distortion in the very high vocal registers. When I play my iTunes library through the Touch, I don't hear any distortion so I'm concluding it's a Pandora thing. Maybe I should write/call them. -- CEBJr CEBJr's Profile: http://forums.slimdevices.com/member.php?userid=52059 View this thread: http://forums.slimdevices.com/showthread.php?t=92130 ___ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/discuss
Re: [slim] Treble distortion
CEBJr;677985 Wrote: When I switched the impedence in the Sony's menu to 4 ohm, the shutdown problem disappeared. The unit sounds very good most of the time, but I still have occasional distortion in the very high vocal registers. When I play my iTunes library through the Touch, I don't hear any distortion so I'm concluding it's a Pandora thing. Maybe I should write/call them. ...Thats why you should have your own files if quality is a concern :) 99.9998 % of the user base would not recognize sq if it bit them in thier behind. Note that 128k will not be artifact free, and you hear it if it is a quality recording. Lossy compression is even less good on embedded devices with small cpu and no fpu unit, so the decoders has some compromises. Is it possible to have the server transcode pandora ? Or does the app block this, a worthwhile experiment -- Mnyb Main hifi: Touch + CIA PS +MeridianG68J MeridianHD621 MeridianG98DH 2 x MeridianDSP5200 MeridianDSP5200HC 2 xMeridianDSP3100 +Rel Stadium 3 sub. Bedroom/Office: Boom Kitchen: Touch + powered Fostex PM0.4 Misc use: Radio (with battery) iPad 64gB wifi +3g with iPengHD SqueezePad (in storage SB3, reciever ,controller ) Mnyb's Profile: http://forums.slimdevices.com/member.php?userid=4143 View this thread: http://forums.slimdevices.com/showthread.php?t=92130 ___ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/discuss
Re: [slim] Treble distortion
Is not the amp a limiting factor if it goes to protection that easy ? Normally you don't hear amps that much when they work properly . But you sure do when you get close to thier operational limits be it power,voltage,current or whatever. Some amps dislike the reactive nature of some difficult speakers. -- Mnyb Main hifi: Touch + CIA PS +MeridianG68J MeridianHD621 MeridianG98DH 2 x MeridianDSP5200 MeridianDSP5200HC 2 xMeridianDSP3100 +Rel Stadium 3 sub. Bedroom/Office: Boom Kitchen: Touch + powered Fostex PM0.4 Misc use: Radio (with battery) iPad 64gB wifi +3g with iPengHD SqueezePad (in storage SB3, reciever ,controller ) Mnyb's Profile: http://forums.slimdevices.com/member.php?userid=4143 View this thread: http://forums.slimdevices.com/showthread.php?t=92130 ___ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/discuss
Re: [slim] Treble distortion
My Pandora feeds are pretty good, considering. For a while I was using the XM plug-in -- and I was having the HF distortion mentioned above. I upgraded my receiver to a Denon AVR-3808CI with built-in XM. Problem gone. The OP has really fine speakers but the 4 ohm impedence may be a problem for his Sony -- causing the shutdown problem. Any chance of trying an alternate receiver that is known to be OK with 4 ohm? -- chenrikson chenrikson's Profile: http://forums.slimdevices.com/member.php?userid=22407 View this thread: http://forums.slimdevices.com/showthread.php?t=92130 ___ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/discuss
Re: [slim] Treble distortion
Well, I've done nearly everything except the Pandora/non-Pandora track comparison. I replaced some bad wire, replaced the old SB with a Touch, replaced the Toslink cable with RCA cables, and switched the speaker impedance setting on the receiver to 4 ohms (the VA speakers are 4 ohms). Now I know some people don't like the 4-ohm idea, but the receiver was switching to protection mode at modest volumes. Now it doesn't. The high frequency performance is improved, but I still get occasional distortion. The issue is likely with Pandora's bit rate, I'm concluding. Thank you very much for your time, everyone who has helped me. The results are evident. One more thing - I met a man locally who builds speakers. They are bookshelf speakers, and just beautiful. The sound is clean, transparent, and crystalline (he also powers them with Parasound Halo monoblocks). He told me that he spent over a year on the crossovers, which is why they're $3,500 a pair. My receiver has settings for speaker crossovers and I have no idea what I should do about that. Does anyone? -- CEBJr CEBJr's Profile: http://forums.slimdevices.com/member.php?userid=52059 View this thread: http://forums.slimdevices.com/showthread.php?t=92130 ___ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/discuss
Re: [slim] Treble distortion
Mnyb;675321 Wrote: Is there any digital input on that reciever you could try ? I'm using a fiberoptic cable from the receiver to the SB. Logitech tells me that doing it that way bypasses the DAC in the SB so it's using the DAC in the receiver. I haven't any idea about the quality of the receiver's DAC. Four possibilities: * Leave it the way it is; * wire it with the RCA jacks; * get a SB Touch; or * get a DACMagic (or DACMagic Plus). Sigh... -- CEBJr CEBJr's Profile: http://forums.slimdevices.com/member.php?userid=52059 View this thread: http://forums.slimdevices.com/showthread.php?t=92130 ___ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/discuss
Re: [slim] Treble distortion
Option two is cheap, quick and easy. So I think you should try it and see. -- Soulkeeper -that is not dead which can eternal lie. and with strange aeons even death may die.- touch (sans caps) + duet + boom + radio (portable) / dd-wrt @ linksys wrt54g/160n/320n/e2k/e3k + homeplugs c. / lms 7.7.x on w7(x86) w/avira free *If you find the Squeezebox Wiki valuable, please vote for 'Bug 17797: Updating wiki.slimdevices.com...' (http://bugs.slimdevices.com/show_bug.cgi?id=17797)*. Soulkeeper's Profile: http://forums.slimdevices.com/member.php?userid=35297 View this thread: http://forums.slimdevices.com/showthread.php?t=92130 ___ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/discuss
Re: [slim] Treble distortion
Do you only hear it when listening to Pandora and not when listening to similar music ripped from your own CDs to a lossless format like FLAC? If so, then it's most likely the lossy encoding of the audio stream. Pandora streamed to the Squeezebox is a poor 128 kbps. High frequencies, in particular, suffer with lossy encoding. -- JJZolx JJZolx's Profile: http://forums.slimdevices.com/member.php?userid=10 View this thread: http://forums.slimdevices.com/showthread.php?t=92130 ___ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/discuss
Re: [slim] Treble distortion
Soulkeeper;675404 Wrote: Option two is cheap, quick and easy. So I think you should try it and see. Edit to add: It just struck me. These two statements: ... and ... ... contradict each other. Either you're using an analog (RCA or jack) cable plugged into the aux input, or you're using a digital (fiberoptic) cable. If you have them both connected at once, you probably don't know which of them is in use, which is bad for troubleshooting. (And in a worst case scenario, the receiver doesn't know either, which may cause it to behave strangely.) One cable at a time, please. :) Sorry, that was sloppy. It's a digital cable, only. -- CEBJr CEBJr's Profile: http://forums.slimdevices.com/member.php?userid=52059 View this thread: http://forums.slimdevices.com/showthread.php?t=92130 ___ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/discuss
Re: [slim] Treble distortion
bhaagensen;675305 Wrote: One thing to try is resetting the Xilinx. Dona search for the procedure - its something like holding 1 on the remote while plugging the device in. Fixed a similar problem with my SB3 once. I reset the Xilinx. It sounds better, now, but I need to do the comparisons recommended in other posts. It's difficult to do that given that I can't call up a particular song on Pandora, so I have to wait until one overdrives and then see if I have a copy of my own. -- CEBJr CEBJr's Profile: http://forums.slimdevices.com/member.php?userid=52059 View this thread: http://forums.slimdevices.com/showthread.php?t=92130 ___ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/discuss
Re: [slim] Treble distortion
JJZolx;675414 Wrote: Do you only hear it when listening to Pandora and not when listening to similar music ripped from your own CDs to a lossless format like FLAC? If so, then it's most likely the lossy encoding of the audio stream. Pandora streamed to the Squeezebox is a poor 128 kbps. High frequencies, in particular, suffer with lossy encoding. I have a Pandora subscription, which raises the bit rate to 192. -- CEBJr CEBJr's Profile: http://forums.slimdevices.com/member.php?userid=52059 View this thread: http://forums.slimdevices.com/showthread.php?t=92130 ___ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/discuss
Re: [slim] Treble distortion
CEBJr;675446 Wrote: I have a Pandora subscription, which raises the bit rate to 192. Sadly, through the Squeezebox it doesn't. :( http://forums.slimdevices.com/showthread.php?t=91926 http://forums.slimdevices.com/showthread.php?t=85386 http://forums.slimdevices.com/showthread.php?t=63653 -- JJZolx JJZolx's Profile: http://forums.slimdevices.com/member.php?userid=10 View this thread: http://forums.slimdevices.com/showthread.php?t=92130 ___ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/discuss
Re: [slim] Treble distortion
CEBJr;675441 Wrote: I reset the Xilinx. It sounds better, now, but I need to do the comparisons recommended in other posts. It's difficult to do that given that I can't call up a particular song on Pandora, so I have to wait until one overdrives and then see if I have a copy of my own. You could do that, but a much easier and better way to go would be to make a 128kbps lossy copy of something from your own library. Choose a similar kind of music to the kinds that were exhibiting the distorted treble before. Then put the lossy copy in your library (temporarily), put lossless and lossy in the same playlist and go back and forth to your heart's content. -- aubuti aubuti's Profile: http://forums.slimdevices.com/member.php?userid=2074 View this thread: http://forums.slimdevices.com/showthread.php?t=92130 ___ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/discuss
Re: [slim] Treble distortion
JJZolx;675447 Wrote: Sadly, through the Squeezebox it doesn't. :( http://forums.slimdevices.com/showthread.php?t=91926 http://forums.slimdevices.com/showthread.php?t=85386 http://forums.slimdevices.com/showthread.php?t=63653 See? I told you I don't know anything. You didn't believe me. -- CEBJr CEBJr's Profile: http://forums.slimdevices.com/member.php?userid=52059 View this thread: http://forums.slimdevices.com/showthread.php?t=92130 ___ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/discuss
Re: [slim] Treble distortion
I think they may even use a mix of MP3 and AAC. If you google around there's some mention of them using 64kbps(!) AAC. -- JJZolx JJZolx's Profile: http://forums.slimdevices.com/member.php?userid=10 View this thread: http://forums.slimdevices.com/showthread.php?t=92130 ___ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/discuss
Re: [slim] Treble distortion
All the artefacts of 128kpbs stream must be revealed by that setup! -- amcluesent amcluesent's Profile: http://forums.slimdevices.com/member.php?userid=10286 View this thread: http://forums.slimdevices.com/showthread.php?t=92130 ___ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/discuss
[slim] Treble distortion
I'm new to the forums and would appreciate some advice about how best to correct a problem with my system. The system consists of a SlimDevices Squeezebox, v.2, a Sony DA4300ES AV Receiver, Vienna Acoustics Haydn Grands (4), and VA Maestro Grand center. I play classical, choral, jazz, and folk. The issue is that when playing choral music at moderate levels via Pandora with the SqueezeBox, very high soprano notes often distort badly. It occasionally happens with solo soprano voices, but this is less of an issue. I have the SB volume between 40-60 and the Sony typically near 0 Db. At these levels, I also get a quiet hiss with each track. It happened with my old system and I hoped it would go away when I remade the system two years ago. It hasn't. There are no longer any serious brick-and-mortar stores nearby my home, and so there is no reliable resource to talk with. Does anyone have an idea what's going on here? Thank you, Ched -- CEBJr CEBJr's Profile: http://forums.slimdevices.com/member.php?userid=52059 View this thread: http://forums.slimdevices.com/showthread.php?t=92130 ___ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/discuss
Re: [slim] Treble distortion
Welcome. I can't give you any specific advice, but I do recommend that you set the volume on the SB much closer to 100%, and turn down the volume on your Sony receiver. The SB doesn't have to go all the way to 100%, but get it up at least to 80%. This is a general recommendation for all SBs, as the volume control is digital. Also note that Pandora is only sending 128kbps tracks, so the fidelity of the source isn't that great to begin with. Even so, it shouldn't distort badly. -- aubuti aubuti's Profile: http://forums.slimdevices.com/member.php?userid=2074 View this thread: http://forums.slimdevices.com/showthread.php?t=92130 ___ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/discuss
Re: [slim] Treble distortion
One other thing to be aware of in addition to running your SB volume at or near 100% is you should not plug your SB into the phono jacks on your receiver, but instead Aux, Tape or something other than Phono. The Phono RIAA EQ curve is way different than other inputs and cause bad listening results. -- w3wilkes 2 Duets - 1 for upstairs and 1 for downstairs w3wilkes's Profile: http://forums.slimdevices.com/member.php?userid=22973 View this thread: http://forums.slimdevices.com/showthread.php?t=92130 ___ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/discuss
Re: [slim] Treble distortion
One thing to try is resetting the Xilinx. Dona search for the procedure - its something like holding 1 on the remote while plugging the device in. Fixed a similar problem with my SB3 once. -- bhaagensen bhaagensen's Profile: http://forums.slimdevices.com/member.php?userid=7418 View this thread: http://forums.slimdevices.com/showthread.php?t=92130 ___ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/discuss
Re: [slim] Treble distortion
It's plugged into an Aux jack. (Somewhere in the dim past I read to plug only a turntable into the phono jack.) I turned the SB volume up to 95. It sounds much better, but now it goes into Protect mode at about minus 10dB. Tomorrow I'll call Crutchfield (where I got the receiver) and ask what that might be about. Before I do, I'll try the Xilinx reset. -- CEBJr CEBJr's Profile: http://forums.slimdevices.com/member.php?userid=52059 View this thread: http://forums.slimdevices.com/showthread.php?t=92130 ___ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/discuss
Re: [slim] Treble distortion
Is there any digital input on that reciever you could try ? -- Mnyb Main hifi: Touch + CIA PS +MeridianG68J MeridianHD621 MeridianG98DH 2 x MeridianDSP5200 MeridianDSP5200HC 2 xMeridianDSP3100 +Rel Stadium 3 sub. Bedroom/Office: Boom Kitchen: Touch + powered Fostex PM0.4 Misc use: Radio (with battery) iPad 64gB wifi +3g with iPengHD SqueezePad (in storage SB3, reciever ) Mnyb's Profile: http://forums.slimdevices.com/member.php?userid=4143 View this thread: http://forums.slimdevices.com/showthread.php?t=92130 ___ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/discuss
Re: [slim] Treble distortion
Did you try to listen to the same music from your local library? I don't know Pandora but maybe the music you where listening to was a low quality mp3 file. These files often sound a bit metallic in the high end. -- Pascal Hibon 2 x SB3, 1 x SB Boom and 1 x SB Radio - all wireless ReadyNAS NVX running SBS iPeng on iPod Touch. SqueezePad on iPad. Pascal Hibon's Profile: http://forums.slimdevices.com/member.php?userid=7969 View this thread: http://forums.slimdevices.com/showthread.php?t=92130 ___ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/discuss
