[Csnd] no sound with hrtfearly.csd

The Csound Mailinglist
1

Dear community,
I wanted to try out the file https://csound.com/docs/manual//examples/hrtfearly.csd
Unfortunately I can’t hear anything.
Does someone have an idea what could be the reason?

I got the following messages from my terminal:
csound hrtfearly.csd
0dBFS level = 32768.0
–Csound version 6.16 (double samples) Nov 28 2021
[commit: none]
libsndfile-1.0.28
Reading options from $HOME/.csound6rc
UnifiedCSD: hrtfearly.csd
STARTING FILE
Creating options
Creating orchestra
closing tag
Creating score
rtaudio: ALSA module enabled
rtmidi: ALSA Raw MIDI module enabled
Elapsed time at end of orchestra compile: real: 0.003s, CPU: 0.003s
sorting score …
… done
Elapsed time at end of score sort: real: 0.003s, CPU: 0.003s
graphics suppressed, ascii substituted
0dBFS level = 32768.0
orch now loaded
audio buffered in 256 sample-frame blocks
ALSA output: total buffer size: 1024, period size: 256
writing 512 sample blks of 64-bit floats to dac
SECTION 1:
new alloc for instr 1:
new alloc for instr 10:
file hrtf-44100-left.dat (122875 bytes) loaded into memory
file hrtf-44100-right.dat (122965 bytes) loaded into memory
24
B 0.000 … 0.200 T 0.200 TT 0.200 M:1020076664993535140748734526216577482752.063526898510707354773967497139769
9928064.0
number of samples out of range: 8052 8052
B 0.200 … 0.400 T 0.400 TT 0.400 M:1445128419690378018879433042082536620032.061968136217643624136879330352608
9424896.0
number of samples out of range: 8820 8820
B 0.400 … 0.600 T 0.600 TT 0.600 M:1099167384503428607987708999885752631296.072251433367816360036337511376208
1079296.0
number of samples out of range: 8820 8820
B 0.600 … 0.800 T 0.800 TT 0.800 M:941881108051383681136178788831716179968.0177070556539517643854984655103009
0694656.0
number of samples out of range: 8820 8820
B 0.800 … 1.000 T 1.000 TT 1.000 M:823529837166261712338964341761293418496.0205775066624461446345124047899286
1495296.0
number of samples out of range: 8820 8820
B 1.000 … 2.500 T 2.500 TT 2.500 M:1109253693848988579592303631077830819840.047448220185707122344777286186393
03639040.0
number of samples out of range: 66150 66150
B 2.500 … 4.000 T 4.000 TT 4.000 M:787693591108071262190551953199234809856.0380849289439920925013910247341499
088896.0
number of samples out of range: 66150 66150
B 4.000 … 5.500 T 5.500 TT 5.500 M:1044763030702323062111480079584564609024.058394202589884764992226433838360
4023296.0
number of samples out of range: 66150 66150
B 5.500 … 7.000 T 7.000 TT 7.000 M:900834900749050824459768892901138890752.0716126611571593858983025837346192
883712.0
number of samples out of range: 66150 66150
B 7.000 … 8.500 T 8.500 TT 8.500 M:1271598114613992006021723515880474673152.070598411611541796602039288545078
4636928.0
number of samples out of range: 66150 66150
B 8.500 … 12.500 T 12.500 TT 12.500 M:1168569439006213536857664272391043284992.094123762193122709027164607824143
5811840.0
number of samples out of range: 176400 176400
B 12.500 … 13.000 T 13.000 TT 13.000 M:146681789834315008185844833376836517888.0403409457372861363097264932055626
54720.0
number of samples out of range: 22050 22050
Score finished in csoundPerform().
inactive allocs returned to freespace
end of score. overall amps:1445128419690378018879433042082536620032.047448220185707122344777286186393
03639040.0
overall samples out of range: 572532 572532
0 errors in performance
Elapsed time at end of performance: real: 12.986s, CPU: 2.936s
2240 512 sample blks of 64-bit floats written to dac

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2

Hi Stefan,

Apr 5 2022, Stefan Thomas has written:
...

https://csound.com/docs/manual//examples/hrtfearly.csd

...
I notice thatthis file does not specify a samplerate sr = . Could it
be that your soundcard defaults to 48kHz or something besides 44.1kHz?

Have you tried putting the following line under
<CsInstruments>
sr = 44100

Optionally, you can specify a samplerate of 48000, but then you need to
change the hrtfearly line to load the HRTF data files for 48kHz .

I just did the latter, since my setup works with 48kHz and got audio
output as expected.

Best wishes,

Jeanette

3

Runs here ok. Maybe check that the data files you have are good. I am using the ones in the main source repo, under “samples”.

file …/samples/hrtf-44100-left.dat (188416 bytes) loaded into memory
file …/samples/hrtf-44100-right.dat (188416 bytes) loaded into memory
24
B 0.000 … 0.200 T 0.200 TT 0.200 M: 1638.8 770.9
B 0.200 … 0.400 T 0.400 TT 0.400 M: 2054.1 786.0
B 0.400 … 0.600 T 0.600 TT 0.600 M: 1962.3 980.3
B 0.600 … 0.800 T 0.800 TT 0.800 M: 1399.5 617.5
B 0.800 … 1.000 T 1.000 TT 1.000 M: 1397.0 839.9
B 1.000 … 2.500 T 2.500 TT 2.500 M: 1830.8 902.8
B 2.500 … 4.000 T 4.000 TT 4.000 M: 1557.0 911.1
B 4.000 … 5.500 T 5.500 TT 5.500 M: 1464.9 988.0
B 5.500 … 7.000 T 7.000 TT 7.000 M: 1262.8 1217.9
B 7.000 … 8.500 T 8.500 TT 8.500 M: 1448.7 1217.9
B 8.500 … 12.500 T 12.500 TT 12.500 M: 1066.1 1376.0
B 12.500 … 13.000 T 13.000 TT 13.000 M: 369.0 510.0
Score finished in csoundPerformKsmps() with 2.
inactive allocs returned to freespace
end of score. overall amps: 2054.1 1376.0
overall samples out of range: 0 0

4

Runs without problem for me, too (in the Haiku OS!). Setting a "sr=44100" line
on my machine has no effect, Setting "sr=48000" generates a prominent warning
but I still get sound (I haven't checked for proper HRTF).

Jeanette, where do you find the 48K files? I only see the 44K ones in the examples.

  -- Pete --

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5

In the Csound sources.

6

Dear community,
it also works for me now. The reason has been corrupted *dat files.
What I would like to know: is there a special tutorial about the hrtf opcodes available?
Thanks,
Stefan

7

I think there is an article in the Csound journal.

Prof. Victor Lazzarini
Maynooth University
Ireland

8

Dear community,
it seems, that these opcodes are useful only with headphones, am I right?
Best,
Stefan

9

Yes, 100%, that is inherent to the HRTF model and binaural spatialisation. It may give some "depth" on stereo speakers, but more like a good stereo recording.

Best wishes,

Jeanette

Apr 10 2022, Stefan Thomas has written: