Good day,
Just bought a used Audison BitOne DSP that I want to use it to play around with some speaker prototypes. It has a digital input, but no internal ASRC, so the input signal must be 48kHz (and 24bits). Audison sells the SFC as well, a sampling frequency converter that takes anything from 32 to 192kHz and converts it to 48kHz https://audison.com/product/sfc/
My question. Do you know about similar products? I would rather have something with a USB input that converts all the different formats I listen to from Qobuz to the desired 48kHz / 24bit. I can get a USB to SPDIF, and then the Audison SFC, but maybe there are (cheaper) alternatives?
Many thanks for your input!
Erik
Just bought a used Audison BitOne DSP that I want to use it to play around with some speaker prototypes. It has a digital input, but no internal ASRC, so the input signal must be 48kHz (and 24bits). Audison sells the SFC as well, a sampling frequency converter that takes anything from 32 to 192kHz and converts it to 48kHz https://audison.com/product/sfc/
My question. Do you know about similar products? I would rather have something with a USB input that converts all the different formats I listen to from Qobuz to the desired 48kHz / 24bit. I can get a USB to SPDIF, and then the Audison SFC, but maybe there are (cheaper) alternatives?
Many thanks for your input!
Erik
As I understand, your USB port is on a computer with an operating system? If so, what's the problem with setting the frequency of 48 kHz in the USB spdif converter settings?
https://www.aliexpress.com/item/100...=scene:pcDetailTopMoreOtherSeller|query_from:
https://www.aliexpress.com/item/100...=scene:pcDetailTopMoreOtherSeller|query_from:
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USB connected to what device? PC? In that case, something like this...
https://www.aliexpress.us/item/3256805917650150.html?
Then in the PC sound settings you select 48kHz 24bit output.
https://www.aliexpress.us/item/3256805917650150.html?
Then in the PC sound settings you select 48kHz 24bit output.
Many thanks for the reply!
Indeed, a PC will be used with REW to measure the speaker, so there I could indeed set it to 48kHz.
I do this in a basement without internet, so I also like to keep some offline albums from Qobuz on my android phone, which I would like to be able to play as well (with USB OTG). And it seems not so easy to set the Android to output a fixed 48kHz.
There are ASRC boards on ebay and Aliexpress. https://www.ebay.com/sch/i.html?_from=R40&_trksid=p4432023.m570.l1313&_nkw=ak4137+board&_sacat=0
So, you could hook it up like: USB board -> ASRC board -> DSP board -> DAC
Where the ASRC is configured to always output 48kHz sample rate. However, most of the connection are over I2S bus. So you have to know which device will be the I2S clock source for each connection, and make sure both devices at that connection will be compatible, with one as I2S clock Master and the other as I2S clock Slave.
So, you could hook it up like: USB board -> ASRC board -> DSP board -> DAC
Where the ASRC is configured to always output 48kHz sample rate. However, most of the connection are over I2S bus. So you have to know which device will be the I2S clock source for each connection, and make sure both devices at that connection will be compatible, with one as I2S clock Master and the other as I2S clock Slave.
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Thanks for the replies! Yesterday I put this unit to use, and it worked. Adjustment range is not so extensive as a miniDSP, what I missed most are PEQ options (only a 31 EQ per channel, which I had to use for dipole correction). Still, I could get a good result, and most important, this thing is so much quieter than the minidsp 2x4 I was using before! I listened to it as well, music from the PC (set at 48kHz 24 bit) to the SPDIF out of a USB soundcard. It worked, sounded nice, but my previous version of this speaker used a line level analog crossover that sounded better.
So, all in all I will just use it with either stereo analog in, or with Windows set to 48kHz, all for prototyping and getting a feeling of the quality.
So, all in all I will just use it with either stereo analog in, or with Windows set to 48kHz, all for prototyping and getting a feeling of the quality.