Finding lowest frequency in audio file

[Music Matters]

7 hours ago, bluesman said:

I know your intent is humorous, but you've probably unearthed a serious problem.

 

I was happy to have a confirmation that with my gear everything is fine, and that I probably never bottomed my voice coils, but you are 100% right.

 

It's freaking crazy to discover that for such a premium product there is zero QC!, and you cannot claim it and request the refund!

[yamamoto2002]

On 4/27/2019 at 5:02 AM, Music Matters said:

I would like to know how to analyze FLAC file and to find what is the lowest frequency in that audio track?

 

I'd like to answer to this question.

 

Modern music is tuned A=440Hz and fundamental frequency of lowest keys of piano is showed in the following pic.

 

 

How to determine lowest pitch tone frequency

• Use WaveGene or your favorite tone generator to generate sinusoidal continuous tone, say 55.0Hz (A1, ra), hear it and understand what A1 sounds like.
• Listen to music, lowest sound instrument, and determine lowest pitch

Examples

 

Lowest freq = 25.96Hz, As0

• https://www.youtube.com/watch?v=p0DlTQ-bBMM C1 As0 B0 on 1min 46sec

 

Lowest freq = 30.87Hz, H0

• https://www.youtube.com/watch?v=OXq-JP8w5H4 Fis1 Cis1 H0 Cis1, lowest is H0 = 30.87Hz
• https://www.youtube.com/watch?v=aZOGcaU7q1A

 

Lowest freq = 32.70Hz, C1

• https://www.youtube.com/watch?v=svpw1AlIY1o
• https://www.youtube.com/watch?v=SB8-YY2DyHI
• https://www.youtube.com/watch?v=ooHII67__Sg?t=33s G1 D1 E1 C1
• https://www.youtube.com/watch?v=B9Yc7BMQPH0 A1 G1 D1 C1

• https://www.youtube.com/watch?v=MCcekcmyEQs F Des Es C

• https://www.youtube.com/watch?v=nQcUJdncTeg F C Des Es

 

Lowest freq = 34.65Hz, Cis1 or Des1

• https://www.youtube.com/watch?v=y7d9VLRO3vc F Es As Des
• https://www.youtube.com/watch?v=ONdlP-nxo3g Cis

 

Lowest freq = 36.71Hz, D

• https://www.youtube.com/watch?v=IFM6kcRNcIs D Fis
• https://www.youtube.com/watch?v=1MHA2hBsGwc