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+--- Thread: SPDIF from PCM2704 (/showthread.php?tid=955)
SPDIF from PCM2704 - energyi - 01-30-2019
Anyway to tell if this board can do bit-perfect digital output? (TI PCM2704 processor http://www.ti.com/product/PCM2704) I don't know if the inexpensive board changes digital from usb to spdif.
Looking at pulling the USB connector off (blue wire), wiring it directly to a pi-zero W thus having a tiny package; digital (red wire) or headphone (green) out Moode Audio driven system. Moode 4.4 works. Should come under $10 total. Pi Zero W's are $5 each at my local Microcenter. Can't seem to go into that store without coming out with one of those.
[attachment=496]
RE: SPDIF from PCM2704 - energyi - 01-30-2019
Code:
INPUT PROCESSING
Source: http://ice3.somafm.com/groovesalad-128-aac
Encoded at: VBR compression
Decoded to: 16 bit, 44.1 kHz, Stereo, 122 kbps
DSP OPERATIONS
Resampling: off
Crossfeed: off
Equalizer: Graphic EQ: (off), Parametric EQ: (off}
Crossfade: 0 seconds
Other: Volume normalize (no}, Replaygain (off)
Chip options: none
Volume ctl: Software (MPD 32-bit float with dither)
OUTPUT STREAM
Destination: Local
Encoded at: 16 bit, 44.1 kHz, Stereo, 1.411 mbps
AUDIO DEVICE
Device: none
Chip:
Interface:RE: SPDIF from PCM2704 - Tim Curtis - 01-30-2019
Looks bit-perfect to me but I think that chip is max 16/48K
RE: SPDIF from PCM2704 - energyi - 01-31-2019
(01-30-2019, 06:19 PM)Tim Curtis Wrote: Looks bit-perfect to me but I think that chip is max 16/48K
Yes, correct, that chip is 16/48k max, so using stations that do not exceed that level. Works on stations with higher signals, but is obviously downsampling. Thanks Tim.