message: Whitenoise: removing int16 audio_block dependence
diff: void AudioSynthNoiseWhite_F32::update(void)
  {
  - audio_block_t *block;
  + //audio_block_t *block;
  audio_block_f32_t *block_f32;
  uint32_t *p, *end;
  int32_t n1, n2, gain;
  @@ -52,13 +52,14 @@ void AudioSynthNoiseWhite_F32::update(void)
  //Serial.println(": Gain = 0, returning.");
  return;
  }
  - block = AudioStream::allocate();
  + //block = AudioStream::allocate();
  block_f32 = AudioStream_F32::allocate_f32();
  - if (!block | !block_f32) {
  + if (!block_data | !block_f32) {
  //Serial.println(": NULL block. returning.");
  return;
  }
  - p = (uint32_t *)(block->data);
  + //p = (uint32_t *)(block->data);
  + p = (uint32_t *)(block_data);
  //end = p + AUDIO_BLOCK_SAMPLES/2;
  end = p + (block_f32->length)/2;
  @@ -113,11 +114,11 @@ void AudioSynthNoiseWhite_F32::update(void)
  seed = lo;
  //convert int16 to f32
  - AudioConvert_I16toF32::convert_i16_to_f32(block->data,block_f32->data,block_f32->length);
  + AudioConvert_I16toF32::convert_i16_to_f32(block_data,block_f32->data,block_f32->length);
  AudioStream_F32::transmit(block_f32);
  AudioStream_F32::release(block_f32);
  - AudioStream::release(block);
  + //AudioStream::release(block);
  //Serial.println(" Done.");
  }
  