[Retracted] Tone Recognition Database of Electronic Pipe Organ Based on Artificial Intelligence

Table 5

Relevant frequencies used when extracting base collar.

Musical alphabet	Calculated frequency (Hz)	Normalized starting frequency (Hz)	Normalized stop frequency (Hz)	Program use pitch (Hz)
#a	220	213	235	220
cl	233.08	226	239	233
#c1	246. 94	240	253	217
t1	261.63	254	268	262
#d1	277.18	269	281	277
e1	293. 66	285	301	294
f1	311.13	302	319	311
#f1	329. 63	320	338	330
g1	349.23	339	358	349