Play a segment in a audio file

I am working on a music game which requires me to play small audio clips very quickly. At the moment I play the clips using PlayOneshot.

I am thinking of putting all the clips in to a single audio clip and jump to different positions in that clip.

Is this a good idea?

So I tried the following as a test. I go to the 90 beat at the beginning. And each beat I jump to a random location.

But the output is jumble of sounds can’t make out anything.

Can anyone suggest a solution ?

     void Start ()
     {
 
         source = gameObject.GetComponent<AudioSource>();
         source.clip = clip;
         samplePeriod = 60f * clip.frequency / 110.0f;
         nextBeatSample = clip.frequency;
 
 
         numberOfBests = (int)(clip.length*clip.frequency/samplePeriod);
         source.time = (float)(clip.length * 90 / numberOfBests);
         source.Play();
 
         StartCoroutine(BeatCheck());
 
 
     }
 
     private IEnumerator BeatCheck()
     {
         while (source.isPlaying)
         {
             currentSample = (double)AudioSettings.dspTime * clip.frequency;
 
             if (currentSample >= nextBeatSample)
             {
                 nextBeatSample += samplePeriod;
                 source.time = (float)(clip.length * Random.Range(numberOfBests/4, numberOfBests/2) / numberOfBests);
             }
             yield return new WaitForSeconds(loopTime / 1000f);
         }       
     }