Audacity Forum

Odd.

I've listened to your sample. It sounds a bit thin, no bass, but I can't hear any scratching.

A longshot: could there be too much high content in this recording for your cochlear implant's DSP?

Jack101 wrote:When I record jazz from the radio I get a scratchy sound which is like one of 2 stereo channels but much lower volume and definitely "scratchy".

Jack101 wrote:I have selectrd a section which I think contains the scratchy sounds, altho' i'n not entirely sure I have followed all the instructions correctly.
Attachments jrr1.wav (218.44 KiB)

I can't hear any defects on that file either, (although "jrr1" is a mono track , you said the problem was on stereo).
If the scratchy sounds you hear don't reoccur in exactly the same place in the music, then I think the problem is the computer, (randomly glitching), rather than your built-in hardware.
You could try playing the audio-files on another device , rather than the computer, that would help determine if the scratchy problem is specific to the computer.

The sample sounds good to me. The trumpets stand out strongly, so I reckon they overload your implant. Recording from the radio brings out the frequencies that happen to match the implant's most sensitive ones. Am I right in guessing that it's tuned to pick up speech better than anything else? Our consonants give out higher freqs than vowels.

I'd try changing the tone settings until the distorted freqs are cleaned up. Another fix could be using a speaker simulator, preferably an Impulse Response loader. Distorted guitar sounds scratchy when recorded without going through a speaker. Simulators cut the scratchiness out.