Audacity Forum

I am trying to record a 3khz tone generated by smartphone. When I plot the spectrum analysis, there are peaks at 3,6,9,12 khz. Can anyone please explain to me why this could happen? I kinda know musical instruments produce sounds in many wavelengths multiples of fundamental frequency, but don't know...

what i meant was when i change the window size, the dB seems to change too (dB goes down when window size goes up) even though I am analyzing the same sample. The reason for this is that the graph is scaled such that a sine wave (pure tone) in any one frequency band will register as the same amplit...

what i meant was when i change the window size, the dB seems to change too (dB goes down when window size goes up) even though I am analyzing the same sample. The reason for this is that the graph is scaled such that a sine wave (pure tone) in any one frequency band will register as the same amplit...

Trebor, So for the window size, the higher i go, the more accurate it will be? with a sample rate of 44100Hz IMO the optimum window size is 2048 or 4096. Higher settings take a longer time for the computer to render, with little gain for the extra work. The sound level (dB) seems to change too. Can...

Is there a way to increase sample rate? Go to Edit -> Preferences -> Quality. 44.1kHz or 48kHz is fine for a 5kHz signal (or anything you can hear). Also, your driver can fake you out and up-sample to a higher sample rate than your hardware can handle. It's not unusual for the hardware to be "locke...

... I am doing a project related to sound and movement. Basically, the sound source is constantly moving back and forth. By theory, this would changes the frequency and I would like to observe these changes ... Is there anyway that could help me analyze the frequency changes more accurately? Dopple...

Dear all, This is my first time being here. I am doing a project related to sound and movement. Basically, the sound source is constantly moving back and forth. By theory, this would changes the frequency and I would like to observe these changes. I have tried to record and analyze using frequency a...