Re: [SlimDevices: Audiophiles] Upgrading the Power Supply
ubl you asked for input, I don't see what your issue is with Adam's comments (seemed perfectly reasonable to me). Perhaps you will please let us know what you find out, when you have tried out your power supply project? Questions like yours seem to come up often around here. -- NewBuyer NewBuyer's Profile: http://forums.slimdevices.com/member.php?userid=7862 View this thread: http://forums.slimdevices.com/showthread.php?t=20855 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] DRC/Inguz and Microphone Calibration
tingtong5 wrote: When using this calibration file with drc the sound becomes way too bright. So I reversed all the values (plus - minus and vice versa) but then the sound became too dull (lack of high frequencies). Ive just started trying drc too (family is out of the house all weekend - serious measurement begins tomorrow 8-). You may get some insight from graphing the frequency response of your measured impulse, and checking that it seems consistent with what you hear in your uncorrected system. You can do that using http://www.hometheatershack.com/roomeq/. That tool doesnt like the floating point wav format produced by the Inguz tools - I convert files using sox AnyInguzFile.wav -s2 Output.wav ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Snap, Crackle and Pop
I've just upgraded from an SB3 to Transporter and am also experiencing some crackles/pops during tracks. I've done some testing found the following: 1) It's specific tracks only and is repeatable 2) It occurs on both the analogue and spdif out on the Transporter 3) It does not occur on the SB3 (digital spdif out) 4) These are flac files and there is no problem playing them on the PC 5) I've converted to wav mp3 - same problem on the Transporter, fine on the SB3 and PC The key bits of my setup are as follows: SlimServer Version: 6.5.5 - 12598 - Debian - EN - iso-8859-1 (upgraded to 6.5.5 today, same issue on previous version but not as extensively tested) SB3 firmware 81 Transporter firmware 31 Rotel 1098 used as external DAC when using spdif Any ideas? Cheers Neil -- enca enca's Profile: http://forums.slimdevices.com/member.php?userid=3218 View this thread: http://forums.slimdevices.com/showthread.php?t=36764 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] DRC/Inguz and Microphone Calibration
muski;221338 Wrote: Tingtong -- Where did you get your mic calibrated? muski In germany (I live in holland): http://lasip.hifi-selbstbau.de/cgi-bin/shop/shop.cgi?shop=product=Kalibrierungcart_id=2692111.29825 -- tingtong5 tingtong5's Profile: http://forums.slimdevices.com/member.php?userid=9671 View this thread: http://forums.slimdevices.com/showthread.php?t=36716 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] DRC/Inguz and Microphone Calibration
I did got some answers lately: - the calibration file I got equals the frequency response of my microphone - DRC also needs a microphone frequency response file In other words I could use my calibration file directly with DRC :-) So I did new measurements and created new filters. The resulting sound is too bright and sounds a little thin. So now I am reviewing my measurement chain again, starting with my soundcard. I opened it and found out that it contains only one oscillator of 6 Mhz, meaning it samples at 48 KHz and then resamples to 44.1 KHz (since I configured the card to measure at 44.1 kHz). This is not good (the resampling) so I am starting to look at buying another soundcard now :P Any hints for an USB or pcmcia card with a native 44.1 kHz oscillator would be welcome! -- tingtong5 tingtong5's Profile: http://forums.slimdevices.com/member.php?userid=9671 View this thread: http://forums.slimdevices.com/showthread.php?t=36716 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] DRC/Inguz and Microphone Calibration
Toby Dickenson;221436 Wrote: Ive just started trying drc too (family is out of the house all weekend - serious measurement begins tomorrow 8-). Sounds like big fun :-) Good luck and let us know how you went! Toby Dickenson;221436 Wrote: You may get some insight from graphing the frequency response of your measured impulse, and checking that it seems consistent with what you hear in your uncorrected system. You can do that using http://www.hometheatershack.com/roomeq/. That tool doesnt like the floating point wav format produced by the Inguz tools - I convert files using sox AnyInguzFile.wav -s2 Output.wav Wow a very new version of TMREQ :-) I immediately upgraded my old version, thanks for the hint! :) Also thanks for the hint of looking at the f-response of the impulse file. My installed sox version does not seem to support the -s switch, well guess I will have to read the manual ;-) -- tingtong5 tingtong5's Profile: http://forums.slimdevices.com/member.php?userid=9671 View this thread: http://forums.slimdevices.com/showthread.php?t=36716 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] DRC/Inguz and Microphone Calibration
tingtong5;221478 Wrote: I did got some answers lately: - the calibration file I got equals the frequency response of my microphone - DRC also needs a microphone frequency response file In other words I could use my calibration file directly with DRC :-) So I did new measurements and created new filters. The resulting sound is too bright and sounds a little thin. So now I am reviewing my measurement chain again, starting with my soundcard. I opened it and found out that it contains only one oscillator of 6 Mhz, meaning it samples at 48 KHz and then resamples to 44.1 KHz (since I configured the card to measure at 44.1 kHz). This is not good (the resampling) so I am starting to look at buying another soundcard now :P Any hints for an USB or pcmcia card with a native 44.1 kHz oscillator would be welcome! The too bright sound won't be an issue with your current soundcard - the fact that it is resampling 48-44.1 won't make that much difference in this context. You may want to aim for a curve that rolls off gently above 15kHz or so - most long-term users of DRC prefer a gently rolled-off top end response to a flat one... Alternatively, if possible tell the DRC to ignore high frequencies. I don't know if the Inguz s/w supports this? -- Phil Leigh You want to see the signal path BEFORE it gets onto a CD/vinyl...it ain't what you'd call minimal... ...SB3+TACT+Altmann+MF DACXV3/Linn tri-amped Aktiv 5.1 system and some very expensive cables ;o) Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85 View this thread: http://forums.slimdevices.com/showthread.php?t=36716 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] DRC/Inguz and Microphone Calibration
Phil Leigh;221486 Wrote: The too bright sound won't be an issue with your current soundcard - the fact that it is resampling 48-44.1 won't make that much difference in this context. I agree, but it could be caused by a non lineair f-response of my cheap soundcard, so buying a better card might still be a good idea.. Phil Leigh;221486 Wrote: You may want to aim for a curve that rolls off gently above 15kHz or so - most long-term users of DRC prefer a gently rolled-off top end response to a flat one... I know, I was already using a curve that rolls off 8 dB at 20 kHz :P Still too bright.. Phil Leigh;221486 Wrote: Alternatively, if possible tell the DRC to ignore high frequencies. I don't know if the Inguz s/w supports this? I already asked and Inguz said his convolver does not support this. Instead he has the flatness control option, but that also destroys my well-corrected low-frequency response.. Life ain't easy ;-) -- tingtong5 tingtong5's Profile: http://forums.slimdevices.com/member.php?userid=9671 View this thread: http://forums.slimdevices.com/showthread.php?t=36716 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] DRC/Inguz and Microphone Calibration
tingtong5;221493 Wrote: I agree, but it could be caused by a non lineair f-response of my cheap soundcard, so buying a better card might still be a good idea.. I know, I was already using a curve that rolls off 8 dB at 20 kHz :P Still too bright.. I already asked and Inguz said his convolver does not support this. Instead he has the flatness control option, but that also destroys my well-corrected low-frequency response.. Life ain't easy ;-) My point was that the response (which is nothing to do with whether or not the card is re-sampling) will be flat enough for DRC purposes - you can't hear freq response variations +/- 0.5dB anyway. You need to roll-off way earlier than that. Cymbals are in the 9-14kHz range... Nothing much else is happening up there. Guitars are gone by 6KHz (at best). -- Phil Leigh You want to see the signal path BEFORE it gets onto a CD/vinyl...it ain't what you'd call minimal... ...SB3+TACT+Altmann+MF DACXV3/Linn tri-amped Aktiv 5.1 system and some very expensive cables ;o) Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85 View this thread: http://forums.slimdevices.com/showthread.php?t=36716 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] DRC/Inguz and Microphone Calibration
Phil Leigh;221514 Wrote: My point was that the response (which is nothing to do with whether or not the card is re-sampling) will be flat enough for DRC purposes - you can't hear freq response variations +/- 0.5dB anyway. You need to roll-off way earlier than that. Cymbals are in the 9-14kHz range... Nothing much else is happening up there. Guitars are gone by 6KHz (at best). Sorry for the confusion. I ment that I am using a rollof (beginning at 400 Hz) that eventually reaches -8 dB at 20 kHz.. I fully agree with what you are saying ! -- tingtong5 tingtong5's Profile: http://forums.slimdevices.com/member.php?userid=9671 View this thread: http://forums.slimdevices.com/showthread.php?t=36716 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Empirical Audio Pace-Car Reclocker
cliveb;221132 Wrote: The point of this reclocker is the same as everything else sold by Empirical Audio: to part credulous audiophiles from their money (in large chunks preferably). Yes, just like SD got people to pay $1700. more for a SB3 with a few upgrades in a fancy box called the Transporter. PS- there's going to be a shootout between Empirical Audio and the NV Memory Player at the RMAF. Maybe SD would like to bring a TP to the party. -- jhm731 jhm731's Profile: http://forums.slimdevices.com/member.php?userid=7685 View this thread: http://forums.slimdevices.com/showthread.php?t=37557 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
