dsptoolkit get-samplerate returns default 48000 on dac2 hd + DSP

[tstupka]

rpi3, dac2 hd + dsp linux 5.10.78-2-osmc dsptoolkit 0.20 dsp-addon-96-13.xml

dsptoolkit get-samplerate returns 48000Hz even though:

<?xml version="1.0" encoding="utf-8"?>
<ROM IC="ADAU1451" IC_Address="1" Address_byte_length="2">
        <dateTime>2020-12-08T12:44:00.3255070Z</dateTime>
        <version>4.5.0.1779</version>
        <beometa>
                <metadata type="sampleRate">96000</metadata>
                <metadata type="profileName">DSP add-on</metadata>
                <metadata type="profileVersion">13</metadata>

[ashtoncowie]

I know this issue was opened 9 months ago but I think I've solved this.

• Running git grep -F samplerate in repo root (notice the lowercase "r") returns lots of results of python functions that read and parse the sample rate.
  • Most important of these is hifiberrydsp/parser/xmlprofile.py:ATTRIBUTE_SAMPLERATE = "samplerate"
  • i.e. the actual XML attribute that gets read is indeed "samplerate" with a lowercase "r".
• git grep -F sampleRate with a capital "R" only returns three sample XML files, and nothing in the code itself!
  • It's worth noting that dsptoolkit get-samplerate returns 48000 as a default value when it can't parse the metadata for whatever reason.

So this boils down to a typo in these sample XML files here, not to mention the profiles in hifiberry-os that most users have installed by default.

Correcting this typo in my profile (I'm also using dsp-addon-96-13) and installing it fixed it for me.

Once I have a minute I'll open PRs for this.