Getting Amplitude of MumbleAudioPlayer

[bouwie]

Hi,

Is there any way to get the amplitude of the Mumble audio player pefab. When you are connected to the server you can see the amplitude in the editor moving but I cannot seem to find the source of this.

[BananaHemic]

Take a look in MumbleAudioPlayer, the amplitude is pretty much just the abs sum of the floating point audio data

[bouwie]

Thank you for your reply,

I'm not really good with audio so I have trouble calculating this value on my own. can you point me to the line of code where the value is applied to the editors value. that way I can just use that value cause that is just what I need, or is this piece of code hidden for users?

[BananaHemic]

That number is generated by Unity, it's not set through this asset

[bouwie]

You are right i just found out the slider is generated when you have the OnAudioFilterRead function in your script. When i have a solution i will post it

[bouwie]

I managed to get it kinda working if you smooth the audiofilterread data

code:

public float m_amplitude; private float m_amplitudeSmooth = 2.7f; private float m_rawAmplitude;

   void OnAudioFilterRead(float[] data, int channels)
    {
        if (_mumbleClient == null || !_mumbleClient.ConnectionSetupFinished)
            return;
        //Debug.Log("Filter read for: " + GetUsername());

        int numRead = _mumbleClient.LoadArrayWithVoiceData(Session, data, 0, data.Length);
        float percentUnderrun = 1f - numRead / data.Length;

        if (OnAudioSample != null)
            OnAudioSample(data, percentUnderrun);

        //Debug.Log("playing audio with avg: " + data.Average() + " and max " + data.Max());

        //       if (Gain == 1)
        //      return;

        for(int i = 0; i < data.Length; i++) {

            if(Gain != 1) {
                data[i] = Mathf.Clamp(data[i] * Gain, -1f, 1f);
            }

            m_rawAmplitude = Math.Abs(data[i] * Gain);
        }

        //Debug.Log("playing audio with avg: " + data.Average() + " and max " + data.Max());

    }

   void Update()
    {
        if (_mumbleClient == null)
            return;
        if (!_isPlaying && _mumbleClient.HasPlayableAudio(Session))
        {
            _audioSource.Play();
            _isPlaying = true;
            Debug.Log("Playing audio for: " + GetUsername());
        }
        else if (_isPlaying && !_mumbleClient.HasPlayableAudio(Session))
        {
            _audioSource.Stop();
            _isPlaying = false;
            Debug.Log("Stopping audio for: " + GetUsername());
        }

        m_amplitude = Mathf.Lerp(m_amplitude, m_rawAmplitude, Time.deltaTime * m_amplitudeSmooth);
    }

Then you have to tweak the m_amplitude value a bit to what you need