The impact for such signal will depedent on driver max displacement (gain)
If we assume 5 mm one way the effect will be time shifting of about one sample for 44.1 kHz sampling rate. This can be judged as small in absolute but on the other end equivalent jitter in reproduction chain will not be accepted.
Some graphs with this type of signal (5 mm & 10 mm one way max excursion)
5mm
5mm zoom
10 mm
10mm transfer function (blue = w/o driver displacement)
I got inspiration from one stereophile article Red Shift: Doppler distortion in loudspeakers | Stereophile.com and reproduced the test signal used by the author.
The original signal is a solo flute recording http://fresponse.free.fr/flute_ori.wav
I have simulated a full range driver reproducing this signal together with a low frequency generating significant driver displacement (sinus at 50Hz with 5 mm max excursion one way) (the low freq signal is removed to better assess impact on raw version)
The effect of distorsion is clearly audible as stated in the article
http://fresponse.free.fr/flute_5mm.wav
Comparison of transfer functions (blue = w/o driver displacement)
If we assume 5 mm one way the effect will be time shifting of about one sample for 44.1 kHz sampling rate. This can be judged as small in absolute but on the other end equivalent jitter in reproduction chain will not be accepted.
Some graphs with this type of signal (5 mm & 10 mm one way max excursion)
5mm
An externally hosted image should be here but it was not working when we last tested it.
5mm zoom
An externally hosted image should be here but it was not working when we last tested it.
10 mm
An externally hosted image should be here but it was not working when we last tested it.
10mm transfer function (blue = w/o driver displacement)
An externally hosted image should be here but it was not working when we last tested it.
I got inspiration from one stereophile article Red Shift: Doppler distortion in loudspeakers | Stereophile.com and reproduced the test signal used by the author.
The original signal is a solo flute recording http://fresponse.free.fr/flute_ori.wav
I have simulated a full range driver reproducing this signal together with a low frequency generating significant driver displacement (sinus at 50Hz with 5 mm max excursion one way) (the low freq signal is removed to better assess impact on raw version)
The effect of distorsion is clearly audible as stated in the article
http://fresponse.free.fr/flute_5mm.wav
Comparison of transfer functions (blue = w/o driver displacement)
An externally hosted image should be here but it was not working when we last tested it.
