Question

Android TTS : Why not setting value for Pitch, SpeechRate if string length greater than 4000 ?

Thanx in advanced,

Answer 1

It is not just pitch and rate that are being rejected. The TTS request will be rejected totally if the text length is greater than 4000 characters.

see MAX_SPEECH_ITEM_CHAR_LENGTH in this extract from the Android source:

public abstract class TextToSpeechService extends Service {

    private static final boolean DBG = false;
    private static final String TAG = "TextToSpeechService";

    private static final int MAX_SPEECH_ITEM_CHAR_LENGTH = 4000;