Arduino Forum

Using Arduino => Audio => Topic started by: lightaiyee on Apr 18, 2013, 08:23 am

Title: Can someone recommend a good audio analyzer?
Post by: lightaiyee on Apr 18, 2013, 08:23 am
Can someone recommend a good audio analyzer? No need to be high-end. Preferably cheap:) I have been using Audio Precision. But my boss wasn't happy when I recommended that because it is too expensive.

THanks in advance.
Title: Re: Can someone recommend a good audio analyzer?
Post by: g_u_e_s_t on Apr 18, 2013, 05:12 pm
if you just need a spectrum analyzer, "spectrum lab" is freeware, and ive been very happy with it.  it can take in external audio from a soundcard, or work on saved wav files.
Title: Re: Can someone recommend a good audio analyzer?
Post by: lightaiyee on Apr 19, 2013, 03:44 am

if you just need a spectrum analyzer, "spectrum lab" is freeware, and ive been very happy with it.  it can take in external audio from a soundcard, or work on saved wav files.


Thank you for your answer. May I ask if spectrum lab can be used to measure audio SNR? Or even better, harmonics and intermodulation distortion? I went to the website but could not find an answer.
Title: Re: Can someone recommend a good audio analyzer?
Post by: g_u_e_s_t on Apr 19, 2013, 05:34 am
it has markers that you can move along the trace to get values, and i estimate SNR and distortion from these, but you can also save the data and then do the real number crunching on it.  i also have a good sine generator that i use in conjunction with it to do intermodulation distortion and the like.  you can probably generate a decent sinewave with your soundcard as well.  its definitely not a complete plug and play solution, but it is free.